Page 1

W E N

Sales Department Hotline: 01633 486460 Technical Department Hotline: 01633 486461 Specials Department Hotline: 01633 486449

IM

D E V O PR

LE I F O PR

CI/SfB

April 2009

Fax: 01633 486465 Fax: 01633 486495 Fax: 01633 486495

IG Limited, Avondale Road, Cwmbran, Gwent NP44 1XY Tel: 01633 486486 Fax: 01633 486465 E-mail: info@igltd.co.uk Website: www.igltd.co.uk

IG Limited is part of the The information contained in this brochure was accurate at the date of going to press. The Company, however, reserves the right, while maintaining the essential performance of the lintels described, to introduce at any time modifications and changes of details as may be considered necessary to improve the products described. Every endeavour will be made to bring this brochure up-to-date at regular intervals, but in order to avoid any misunderstanding, any person interested should enquire of the Company as to whether there have been any material alterations since the date of this publication.

(31.9)

Part of the

Xh2


LINTELLIGENCE Forty years of successfully meeting the lintel needs

Features

of specifiers and contractors has taught us to take

C O N T E N T S INTRODUCTION

2

CONTENTS

3

PRODUCT GUIDE

4-6

nothing for granted.

Standard lintels for all cavity wall constructions

We have developed our comprehensive range of

Standard lintels for timber frame construction

standard lintels to ensure we cover all conventional

Special lintels designed and manufactured to specification

CAVITY WALL LINTELS

Complete with insulation and plaster key

THE L1 PROFILE

Conform to all relevant Building Regulations

STANDARD

Available in galvanised mild steel or stainless steel

and timber frame constructions. The range is continually evolving to take account of changing building requirements such as higher standards of insulation.

WIDE INNER LEAF

7 50-70/70-95 CAVITY

8-9

95-110/110-150 CAVITY

10-11

50-70 CAVITY

12

70-95/95-110 CAVITY

13-14

50-110 CAVITY

15

Investment in manufacturing enables us to meet a growing need for lintels of non-standard design we established our special lintels department

WIDE OUTER LEAF

specifically to satisfy those needs. L1/E EAVES LINTELS

Benefits

If our standard range does not provide the lintels you require, we will design and manufacture lintels to meet your specification.

Specifying lintels is not always straightforward, so

Technical advice and assistance readily available

Free lintel scheduling

Investment in manufacture to ensure consistent quality

Continually evolving product range to meet changing needs

Available through a nationwide network of specialist distributors

in the most effective and efficient manner. This includes free lintel scheduling to help ease your

STANDARD & WIDE INNER

50-100 CAVITY

17

HEAVY DUTY LINTELS

50-110 CAVITY

18

EXTRA HEAVY DUTY LINTELS

50-110 CAVITY

19

TIMBER FRAME LINTELS

we provide a range of technical advice and support services to make sure our lintels are always used

16

busy workload.

Product quality and consistency have always been

20

L7/50 TIMBER FRAME

40-55 CAVITY

21

L7/75 TIMBER FRAME

70-90 CAVITY

21

L8/50 CONCRETE INNER

50-65 CAVITY

21

SINGLE WALL LINTELS

22

L9/L10/L11

23

BOX LINTELS

24

of prime importance - that is why we have always STANDARD

75-200

24-25

HEAVY DUTY

100-200

26

ensured that our lintels meet all current standards of performance and durability. To help make sure that our lintels are as good tomorrow as they are

New Website

today, we have just updated our lintel factory with the latest machinery.

www.igltd.co.uk

INTERNAL LINTELS

27

LINTEL SOFFIT CLADDING

28

UNIVERSAL ARCH

28

STAINLESS STEEL LINTELS

29

SPECIAL LINTELS AND FAX BACK FORM

29-32

TECHNICAL INFORMATION

33-35

CAVITY TRAYS

36-37

KEYLITE ROOF WINDOWS

38-39

Finally, we have also learnt that all the above is only of value if our lintels are available when and where you want them. So our network of specialist distributors has been established to give you ready availability throughout the UK.

Now that is lintelligence - only available from IG Lintels

2

3


L1/S 50

L1/S 50 WOL

L1/S WIL 100

L1/S WIL 75

L1/S WIL 50

L1/E 50

L1/S 11

L7/50

PRODUCT GUIDE CAVITY WALL LINTEL S con t.

C AV ITY WA LL L INTE L S L1/S 50

L 1/ S 7 5

STANDARD

(also available as Stepped Lintels)

Standard L1/S 50

Page 8

L 1/ H D 50 L1/S 50

Heavy

L1/S 50 L1/S 75

Duty

L1/S 50

L1/S 50 L1/HD L1/S 50 75

L1/HD L1/S Page 875 50

L1/S 50

L1/S 100

L1/S 75

Page 12 L1/S 75

L1/S 50

L1/HD L1/S 50 100 L1/HD 75

LL1/S 1 /75S W I L 5 0

Standard

L1/S 75

WIDE INNER BLOCK/BRICK

L1/S 50

L1/S 75

(also available as Stepped Lintels)

L1/S 50

Duty

L1/S 75 L1/S 75

L1/S 100

L1/HD 50

DutyL1/HD 50 L1/HD 75 Page 12

L1/HD 75

Extra

L1/SL1/S 50 75 L1/S 100

Page 10

L1/S 100L1/S WIL 50 L1/S 75

L1/S 100 L1/S WIL 50 L1/S WIL 75

L1/S WIL 50 L1/S WIL 75 L1/S WIL 100

L 1/ H D 10 0

50 75 L 1 / X H D 7L1/HD 5 L1/HD

L1/HDL1/HD 50 75 L1/HD 100

L 1 / X H D 1L1/HD 0 0 L1/HD 75 100

L1/HD 50 75 L1/HD

L1/XHD 50 L1/S 100 L1/S WIL 50

L1/HD WIL 50

L1/HDL1/HD 50 L1/HD 100 75 L1/S WIL 75L1/HD 75 L1/HD 75 L1/XHD 50 L1/HD 100 L1/HD WIL 50

L1/HD L1/HD 75 100 L1/HD WIL 50

L1/S WIL 100 100 L1/HD 100 Page 10L1/HD WIL 75 L1/HD WIL L1/HD 50

L 1 / H D WI L 1 0 0

WIDE OUTER BLOCK/STONE

L1/XHD 50 L1/HD 75 L1/HD 100 L1/S WIL 75

L1/XHD 50 L1/HD 75 L1/S WIL 50

50 L1/HD 50 100 L1/XHD

L1/HD 100 L1/HD L1/S WIL 100 WIL 50

L1/HD 75 L1/HD 100 L1/XHD 50 L1/HD 75 L1/HD 100 L1/XHD 50 L1/HD 75 L1/S WIL 100 L1/S WIL 75 L1/HD 100 L1/HD 75 L1/HD WIL 75 L1/HD WIL 50

L 1/ E 5 0

L1/HD WIL 50

EAVES

L1/HD WIL 100

L1/HD 100

L1/HD 75

Page 15

Page 17

Standard

L1/S WIL 100

L1/HD WIL 75

L1/HD WIL 50

STANDARD

STANDARD

L1/HD WIL 100

L 5/ 5 0

L1/S 100 WOL

Heavy Duty

L1/S 75 WOL

L1/HD WIL 75

Page 18

Extra

L1/S 100 WOL L5 L5/50

L1/HD WIL 100 L6

L 6/ 5 0

L1/S 110 L7/50

L1/S 110

110 CAVITY

130 CAVITY

L1/E L1/S 7575 WOL

75 L1/EL7/75 L1/S 75 WOL

L1/E L7/75 75

L1/E 75 L1/HD WIL 100 L1/S 75 WOL

L1/E L7/75 75 L1/S 75 WOL

L1/E L7/75 75

LL1/HD 1 /SWIL1751L1/HD 0 WIL 100L1/S 75 WOL

L1/HD WIL 100

L1/HD WIL 100 L1/S 75 WOL L1/HD WIL 75

L 1 /S 13 0

Page 11

Page 11

L1/E 75 L1/EL7/75 75 L1/S 75 WOL L1/HD WIL 100L1/S 75 WOL L1/HD WIL 100 L1/S 75 WOL L1/HD WIL 75 L1/S 130 L7/75100 L1/E 75L7/50 L1/SWOL 110 L7/75 L1/S L1/S 100 WOLWIL50 L1/HD WIL L1/E L1/HD WIL 100 L1/E 75 L1/E WIL50 L1/S100 75 WOL

Page 21 L1/S 110 L7/50 L7/75 L1/E WIL50

L7/75 L1/E 75

L1/S 130 L8/50

L L1/S 1 / S1301 5 0 L1/S 130

Page 11

L1/S 130

L8/50

L1/S 130

L1/S 110 L7/50

150 CAVITY

L8/50 L1/S 130

L1/S 110

L7/75

L1/S 130

L1/S 130

L7/75

L1/S 130

L1/S 130

L7/75

L1/S 130

L1/S 150

L1/S 150

L1/HD WIL 50L1/S L1/HD WIL 75 50 WOL

Page 15

L1/HD WIL 50

L1/HD WIL 75 L1/HD WIL 100

L1/HD WIL 75 L1/E 50

Page 15

L1/HD WIL 100 L7/50

L6

L7/50 L1/S 75 WOL

L1/S 110

L1/E 75

L7/75 L1/S 100 WOL L5 L5/50

L1/E 75 L1/HD WIL L6 100 L8/50 L7/75 L1/S 100 WOL

Page 18

L 6/ 75

Lintels are identified by type, loading characteristics and cavity

L1/S 130

L1/E WIL50 L6/75

L1/E WIL50

L1/S 100 WOL L1/E WIL50

L8/50

L1/S 100 WOL L1/S 100 WOL L1/E WIL50 L1/E WIL50 L1/S 130 L1/E WIL50

L8/50

L5 L5/50

L8/50

L1/S 150

L5/75

L 5/ 10 0

L1/S 150 L1/E WIL50 L8/50 L5/75

L1/S 130

L8/50

L1/S 150

Page 18

L 6/ 10 0

L6/100

L1/S 150

L7/75

L1/HD WIL 100 L1/S 100 WOL L1/S 100 WOL L1/E WIL50 L1/S 110

L1/S 130 L1/S 130

L1/E 75

L8/50

L7/75

L6/75

L1/E 75

L1/S 100 WOL L1/E WIL50

L1/HD WIL 100 L1/S 100 WOL L7/75 L1/S 100 WOL

L5/100

L8/50 L1/S 100 WOL L1/E WIL50

L1/E WIL50L8/50 L1/S 150

requirements of intended usage. L1/S 150 L1/S 150

L8/50

L1/S 150

L1/S 150

widths with reference to the appropriate page for full details.

L1/S 100 WOL L1/E WIL50

L1/HD L1/S 100 WOLWIL 100

L1/S 130

L7/75

L 5/ 75

L1/S 50 WOL L1/HD WIL 100 L1/E 50 L1/HD WOL L1/S 110 L1/S WIL100 100 L1/HD WILWOL 75 L1/E100 WIL50 L1/S 50 L1/HD 100 L1/S 100 WOLL7/50 L1/HD WIL110 100 L1/S WIL 75 L1/HD WIL 75 L1/HD WIL 50 L1/E L1/HD WILL1/HD 50 50 L1/S L1/E L1/S 50 WOL L7/50WIL L1/S 110 50 L7/50 L1/S 130 L7/75 L1/E 75 100 WOL L8/50 L1/S L8/50 L1/S 100WIL50 WOL L1/HD WILL1/S 100 75 WOL L1/E L1/S 5075 WOL L1/HD WIL L1/S 110 L1/E WIL50 L1/E 50 L1/HD WIL 100 L7/50

L1/E 75 L7/75 L1/S 75 WOL L1/S 75 L1/E WOL75 L1/S 100 WOL L1/E WIL50 L1/E 75 L1/S 110

Page 14

L1/S 110

L8/50 L1/E WIL50 L1/S 150

L8/50 L1/S WOL L1/E100 WIL50

L1/S 1

that properties and installation of IG steel lintels meet the

L1/HD WIL 100 L1/S 75 WOL L7/50 L1/S 75 WOL

L7/50

Page 17

L1/E 75 L1/HD WIL 100

L1/S 110 L7/50

guide to IG’s range of steel lintels.

L7/75

L 1/ E 7 5

L1/E WIL50

L1/E 50

Page 21

The tables on these pages provide the specifier with a quick

L1/S 75 L1/E WOL75

L1/HD 100 L1/HD WIL 75 L1/HD WIL 50 L1/HD WIL 75 L1/HD WIL 100 L1/HD WIL 50 L1/HD WIL 75 L1/HD WIL 100 L1/HD WIL 5050 WOL L1/S L1/E 50 L7/50 L1/E 75 L1/S 110 L1/S 75 WOL L1/HD WIL 100 L1/HD WIL 75 L1/HD WIL 50 L1/HD WIL 100

L1/S 75 WOL

L1/HD 100 L1/HD WIL 100 L1/HD WIL 75 WIL 75 L1/HD WIL 50L1/S L1/HD WILL1/HD 50 50 WOL L1/EL1/S 50 75 WOL L1/HD WIL 75 WIL 5075L1/HD WILL1/HD L1/HD L1/HD WIL 75 100 WIL 50 L1/HD WIL 100 L1/HD WIL

L1/S 75 L1/E WOL75

L 1 / S 100W OWILL 751 0L1/HD 0 WIL 100 L 1 / S L1/HD W OWIL L 507 5L1/HD WIL 75L1/HD WIL 50 L1/HD WILL1/S 75 L1/HD WIL L1/HD 110

L1/E 50 L1/HD WIL 100

L1/HD WIL 75

Page 17

L1/HD WIL 100

L1/HD WIL 75

L 1 / E W I L 5 0 L1/S 50 WOL

L1/HD WIL 75

L1/HD WIL 100 L1/HD WIL 50

L1/S 75 WOL

L1/S 50 50 WOLL7/50 L1/E

L1/S 50 WOL L1/S50 50 WOL L1/S 50 L1/E 50 WOLL7/50 L1/E 50 L1/S WIL 100 L1/E L1/S WIL 75 L1/S WIL 100 100L1/S WOL L1/E 75 L1/S 110 L1/S 50WOLL1/HD WIL 75 L1/E 50 L1/E 75L1/S L7/75 L7/50 L1/HDL1/S WIL 100 110 L1/E 50 L1/S 75 WOL 75 WOL L7/50 L1/HD WIL 100 L1/HD WIL 100

Standard

L1/HD WIL 100 L1/S 75 WOL

L1/HD WIL 75 L1/HD WIL 100

L1/HD 100

L1/E 75

L1/HD WIL 100 L1/HD WILL1/HD 50 WIL 75

L 1 / X H D W I L L1/HD 1 0 0WIL 100

L 1 / X HL1/HD D WIL W I50LL1/HD 7 5 WIL 75L1/HD WIL 50 L1/HD WIL 75

L1/HD 100

L1/HD 100 L1/HD WILL1/HD 50 WIL 75

L7/75

L1/XHD 50 L1/HD 75 L1/S WIL 100

Standard

L1/HD WIL 100 L1/HD WILL1/HD 50 WIL 75

L1/E 75 L1/S 75 WOL

50

L1/HD WIL 50 L1/E 50

L1/HD 100 L1/HD L1/HD WIL 50 WIL 75

L1/S 75 L1/E WOL75

Page 14

Page 13

L1/HD 100

LOAD

L1/HD WIL 100 L1/S 75 WOL

L1/HD WIL L1/HD 100 WIL 75

Duty

L 1/ S W O L 50

TYPE

L1/HD WIL 100

L1/HD WIL 50 L1/HD WIL 75L1/HD WIL 50 L1/HD WIL 75

Heavy

L1/HD 75 L1/XHD 50 L1/HD 75 L1/HD 100 L1/S 50 WOL

L1/S 50 50 WOL L1/S WIL 100 L1/E

L1/S 150

L1/HD 100

Page 12

L1/S WIL 75 L1/S WIL 100 L1/S 50 WOL

L1/S WOL L8/50 to read the Technical Information pages 33-35 toL8/50verify L1/E WIL50L8/50 L1/S L1/E100 WIL50 L1/S 150 150

Page 13

L1/HD WIL 50

L1/S 110

L1/S 50 WOL 50 WIL 75 WOL WIL110 100 L1/S L1/HD L1/HD WIL 100 L1/S 100 WOLL7/50 WIL 75 L1/HD WIL 100 L1/EL1/HD L1/E100 WIL50 L1/HD WILL1/HD 50 50 L1/S L1/E L7/50 L1/S 110 L7/50

L1/HD 50 L1/HD 75 L1/HD 100 L1/HD 50 L1/HD WIL 75 L1/HD 75 L1/HD 100 L1/HD WIL 50 L1/HD WIL 75 L1/HD 100 L1/HD 75 L1/HD WIL 100 L1/HD 100L1/HD WIL 50 5050L1/HD WIL 75 L1/HD WIL L1/HD 75 L1/HD 75 L1/HD WIL 100 L1/XHD 50 L1/S WIL 50 WOL WIL L1/E 50 L1/HD WIL 100 L1/SL1/HD WIL 100 L1/S WIL 75 L1/S WIL 50 L1/HD 75 L1/HD 100 L1/HD WIL 100 L1/HD WIL 75 L1/HD WIL 50

L1/HD 100

L1/S 110 L7/50

L 8/ 5 0

L1/HD L1/S WIL100 100 WILL1/HD WILWOL 75 L1/HD 50 L1/E L1/S 50 L1/S 50 WOL 50

Page 14

0 L1/HD 50 100 L1/S

LL1/HD 1 / X75H DL1/HDW100 I L 5 0L1/HD 75

L1/S 110 L7/50

100 L1/HD 75 L1/HDL1/HD 75 100 L1/HD 75 L1/HD L1/S WIL L1/S WIL 50 L1/XHD 50 75 WIL 50 L1/SL1/HD WIL 100 WIL 75 L1/S 50 L1/S WILL1/XHD 50 L1/S WIL 100 L1/S WIL 75

L1/HD 50

L1/HD 50

L1/E 50

L1/S 150

0

L1/HD WIL 50

L1/S 50 WOLL7/50 L1/E

L 7 /7 5

L8/50 L1/S 150

Page 13

L1/HD 100

L1/S 50 WOL L1/S WIL 100 L1/E 50

Before consulting tabular information, specifiers are advised

L1/HD 50

L1/HD 100

L1/S WIL 50 L1/S WIL 75L1/S WIL 100 L1/S 50 WOL L1/HD WIL 50 L1/HD WIL 75

L1/S

50-65 CAVITYL7/75 L1/S 110

L1/S 110

L1/S 50 WOL

Page 21

L1/S WIL 100 L1/HD WIL 75

L1/E 75 L7/50

70-90 CAVITY L1/E 50L1/S 75 WOL L7/50

WOL L1/HD WIL 100 L1/S 100 WOL L1/HD WIL 100 L1/S L1/HD WIL 100 WIL 75 L1/E100 WIL50 WIL 75 50 WOL L1/HDL1/S WILL1/HD L1/S 110 L1/E L1/HD 50 L7/50 L1/S 110 L1/E 50 L7/50 L1/S 110 L7/50

L 1/ S W I L 1 00

L 1/ H D W IL 75

L1/HD 75

L1/S 50 WOL L1/HD WIL 100 L1/E 50

L1/HD 100 L1/HD 75 L1/HD WIL 50 WIL L1/S 50 WOL L1/S 50 L1/S WOLWIL 100 L1/E 50

L1/S WIL 75L1/S WIL 50

0

L1/HD 100

L1/S 100 L1/S WIL 50L1/S WIL 75 L1/HD 100 L1/S WIL 75 L1/S WIL 100 L1/HD WIL 50 L1/HD WIL 50

40-55 CAVITY

L 7L1/S /5WIL 0 75 L1/S WIL 100

Standard

L1/S 50 WOL

WILWIL 75 100 L1/HDL1/S

100 L1/HDL1/HD 75 100 L1/HD L1/HD 75 L1/HD WIL 50 L1/XHD 50 L1/S WIL 75 L1/S WIL 100 L1/S WIL 75 L1/S WIL 100

L 1 / S L1/S W IWIL L L1/XHD 7 5L1/HD 50 75 50

L1/S 100

100 75 L1/HD L1/HD L1/HD WIL 50

Page 10

100 L1/HD 75 100 L1/HDL1/HD 75 L1/HD 75 L1/S WIL 75 L1/HD L1/S WIL 50 L1/XHD L1/XHD 50L1/S 100 WIL 50 50 L1/SL1/HD WIL 100 L1/S 100 L1/S 50 WIL 75 L1/S WIL L1/XHD 50 L1/S WIL 100 L1/S WIL 75 L1/S WIL 50 L1/HD 100 L1/HD L1/HD 100 L1/HD 75 L1/HD75 100 WIL 75 WIL 100 WIL 50 L1/HD L1/HD WIL 75 L1/XHD 50 L1/HD 50 L1/HD WIL 50 L1/S WILWIL 100L1/HD L1/S WIL 75 L1/HD L1/S WIL 50

L1/S 100

L1/HD 75

L1/SL1/S 50 75

L1/S 100 WIL 50 L1/XHD 50 L1/HD Page 975L1/HD

LL1/S 1L1/XHD /75H D50L1/SW100 I L 5 0 L1/S 75 L1/HD 75

Heavy

L1/S WIL 50 L1/S WIL 75L1/S WIL 100

L1/HDL1/HD 50 L1/HD 75 100

L1/XHD 50 L1/S WIL 50 L1/S 100

LOAD

L1/S 100 L1/S WIL 50L1/S WIL 75

L1/SL1/S 50 75 L1/S 100 L1/S 75L1/S 100L1/S WIL 50 L1/HD 75 L1/HD 50 L1/S L1/S WIL 50 L1/XHD 100 75 WIL L1/HD L1/HD 10050 L1/S WIL 75 L1/HD 100 L1/HD 75 50L1/S

L1/S WIL 100

WIL5075 L1/SWIL L1/HD

TYPE

L 1 / S 1 0 0L1/S 75L1/S 100L1/S WIL 50

L1/HD 50 75 L1/HD

L1/S 100

L1/S WIL 75

50 75 L1/SL1/S L1/S 100

50100 L1/SL1/HD 75L1/S

Page 9

L1/HD L1/S WIL100 50

L1/S WIL 50

L1/SL1/S 50 75

50 75 L 1 / H D 7 5 L1/SL1/S

L1/HD 50

L 1/ X H D 50

Heavy L1/S 50

L1/S 50

L1/HD 50

Page 8

Extra

Page 9

95-110 CAVITY L1/SL1/HD 100 75

SIZE

L1/S 50

L 1/ S 5 0

L1/HD 50L1/S 100 L1/S 75

70-95 CAVITY L1/S 50 L1/S 75

BLOCK

50-70 CAVITY

TIMBER FRAME CONCRETE INNER

LOAD

WIDER CAVITIES

TYPE

L1/S 50

50

L1/S 100

L1/S 75

L1/E 75

L7/75

L1/S 130 L7/75

L7/75

L1/S 130

L7/75

L8/50

L1/E WIL50

L8/50

L1/E WIL50

L8/50

L1/E WIL50 50 L8/50

L8/50

L1/S 130

L7/75 L7/75

L1/S 130

L1/S 150

60

L1/S 150

For standard duty loading conditions only L1/S 150

L1/S 150

CL1/SA150 VITY

L8/50

L1/S 150

L1/S 130

L1/S 130

LINTE LS SELE CTION CHART

L8/50

L1/S 150

L1/S 130

L1/S 130

L8/50

L1/S 150

L1/S 130

L1/S 130

70

L1/S 150

L1/S 150

SIZE

(Clear)

80

95 150 L1/S

100

105

110

130

150

100

L1/S 50

L1/S 50

L1/S 75

L1/S 75

L1/S 100

L1/S 100

L1/S 100

L1/S 110

L1/S 130

L1/S 150

115

L1/S 50

L1/S 50

L1/S 75

L1/S 75

L1/S 100

L1/S 100

L1/S 100

L1/S 110

L1/S 130

L1/S 150

125

*L1/S 50/ L1/S WIL 50 *L1/S 75/ L1/S WIL 75 L1/S WIL 50 L1/S WIL 75

L1/S 100

L1/S WIL 100 L1/S WIL 100

*L1/S 110/ *L1/S 130/ *L1/S 150/ L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

130

L1/S WIL 50 L1/S WIL 50 L1/S WIL 75 L1/S WIL 75 L1/S WIL 100 L1/S WIL 100 L1/S WIL 100 L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

140

L1/S WIL 50 L1/S WIL 50 L1/S WIL 75 L1/S WIL 75 L1/S WIL 100 L1/S WIL 100 L1/S WIL 100 L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

150

*L1/S WIL 50 *L1/S WIL 50 *L1/S WIL 75 *L1/S WIL 75 *L1/S WIL 100 *L1/S WIL 100 *L1/S WIL 100 *L1/S WIL 110 *L1/S WIL 130 *L1/S WIL 150

190

WIL 50/200

WIL 50/200

WIL 75/200

WIL 75/200 WIL 100/200 WIL 100/200 WIL 100/200 WIL 110/200 WIL 130/200 WIL 150/200

215

WIL 50/200

WIL 50/200

WIL 75/200

WIL 75/200 WIL 100/200 WIL 100/200 WIL 100/200 WIL 110/200 WIL 130/200 WIL 150/200

Heavy Duty

Page 19

Page 19

Page 19 L1/S 100 WOL

L1/HD WIL 100

L6/75

L8/50

L1/E WIL50 L6/75

L5/75

4

L6/100

N.B.

L1/S 150 L6/75 L5/100

*Upstand to be positioned tight to inner block. Maximum overhang 25mm on either flange FOR INSULATED BONDED BLOCK ARRANGEMENTS CONTACT TECHNICAL DEPARTMENT

L6/100

5 L6/100

L5/100


L7/50 L7/50

L8/50

Cavity Wall Lintels L8/50 L8/50

S IN G LE WAL L

L9

L9L9

Page 23

L 10

L11

L11 L11

L10

L11

BOX LINTEL S

Page 24-25

BOX 1 0 0

B O X 14 0

BOX 7 5

S PE C IA L L I NT E LS ARCH LINTEL L10 L10

The L1 Profile

N ON- CAVIT Y WAL L LI NTE L S L11

L9

BOX 2 0 0

Page 27

64 & 1 00

Pages 29-32

MITRED LINTEL Page 31

Page 30

INTERNAL

RADIUS PLAN LINTEL

Page 32

L11 L11

Where lintel requirements cannot be met from the standard range, please refer to our Special Lintels Service on page 29.

STAINLES S ST E E L L INT E L S S TAI NL E SS S TE EL L IN TE LS

Page 29

U NIVE RSAL ARCHES ARCHE S

Page 28

High Performance Lintels for harsh environments

L1 type lintels have a ‘top hat’ profile which offers distinct advantages in terms of durability and structural characteristics including: The maintenance of the integrity of the wall structure and its thermal properties through uniform and continuous bricklaying the upstand of the lintel sits within the cavity;

dpc

LINTEL SO F F IT C L A DDI NG S O FF I T C LAD D IN G

Page 28

C AVIT Y T RAYS

Expanded polystyrene

CAVITY T RAYS

Easy curtain bracket fixing. No batten required

Page 36

A unique single element cavity tray system

Indented flange for plaster key

Excellent thermal efficiency as a direct result of its design which, with the addition of an expanded polystyrene infill (standard on allL1 lintels) , provides a ‘U’ value through the lintel of significantly less than 0.33 W/m2 K; Reduced maintenance costs through the elimination of cracked plaster due to the differential expansion of dissimilar materials associated with Box section lintels. Semi-pierced slots on the inner flange give an excellent key for the plaster finish.

Plaster key across cavity

6

7


CAVITY

WALL

50-70 mm

LINTELS

CAVITY

WALL

70-95 mm

LINTELS

CAVITY

CAVITY

L1/S 5 0

Manufactured Length 150mm increments

L1/S 75

Manufactured Length 150mm increments

For 50-70mm cavity wall construction. Standard duty loading condition.

Height ‘h’

79

98

110

134

150

172

172

209

209

209

For 70-95mm cavity wall construction. Standard duty loading condition.

Height ‘h’

98

89

106

130

142

168

204

204

204

Thickness ‘t’

1.6

1.8

2

2

2

2

2.5

2.9

2.9

3.2

Thickness ‘t’

1.6

1.8

2

2

2

2.5

2.9

2.9

3.2

Total UDL (kN) Load ratio (1)

12

14

19

21

21

26

27

27

26

27

Total UDL(kN) Load ratio (1)

12

14

18

21

21

27

27

26

27

Total UDL (kN) Load ratio (2)

10

12

16

17

19

22

20

20

19

22

Total UDL(kN) Load ratio (2)

10

12

14

17

19

22

20

19

22

0600 1350 1650 1950 2250 2550 2850 3150 3750 4200 1200 1500 1800 2100 2400 2700 3000 3600 4050 4800

‘h’ nominal

95

48

‘h’ nominal

100

95

L1/S 50

68

100 L1/S 75

L1/HD 50

Manufactured Length 150mm increments

0600 1350 1650 2250 2700 3150 3750 1200 1500 2100 2550 3000 3600 4200

L1/HD 75

For 50-70mm cavity wall construction. L1/S 50 Heavy duty loading condition.

Height ‘h’

105

121

171

209

209

209

209

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

3.2

3.2

For 70-95mm cavity wall construction. L1/Scondition. 75 Heavy duty loading

Total UDL (kN) Load ratio (1)

30

30

40

40

40

35

Total UDL (kN) Load ratio (2)

22

22

35

35

35

32

L1/HD 50

Manufactured Length 150mm increments

0600 1350 1650 2250 2700 3150 3750 1200 1500 2100 2550 3000 3600 4200

Height ‘h’

103

117

167

205

205

205

205

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

3.2

3.2

33

Total UDL(kN) Load ratio (1)

30

30

40

40

40

35

33

28

Total UDL(kN) Load ratio (2)

22

22

35

35

35

32

28

L1/HD 75

‘h’ nominal

‘h’ nominal

95

48

L1/S 50

95

100

L1/HD 50

68 L1/S 10075

L1/HD 75

L1/HD 75

L1/XHD 50

L1/XHD 50

Manufactured Length 150mm increments

0600 1650 1500 1800

1950 2100

L1/XHD 75

Manufactured Length 150mm increments

0600 1650 1950 1500 1800 2100

For 50-70mm cavity wall construction. L1/HD 50 Extra heavy duty loading condition.

Height ‘h’

171

171

209

Height ‘h’

167

167

205

Thickness ‘t’

3.2

3.2

3.2

For 70-95mm cavity wall construction. L1/HD 75 Extra heavy duty loading condition.

Thickness ‘t’

3.2

3.2

3.2

Total UDL (kN) Load ratio (1)

50

50

55

Total UDL(kN) Load ratio (1)

50

50

55

Total UDL (kN) Load ratio (2)

45

45

45

Total UDL(kN) Load ratio (2)

45

45

45

L1/XHD 50

L1/HD 75

‘h’ nominal

‘h’ nominal

95

8

0600 1350 1650 1950 2250 2550 3150 3750 4200 1200 1500 1800 2100 2400 3000 3600 4050 4800

48

100 L1/XHD 50

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

95

68

100 L1/HD 75

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

9


CAVITY

WALL

95-110 mm

LINTELS

CAVITY

WALL

110-150 mm

LINTELS

CAVITY

CAVITY

L1/S 1 00

Manufactured Length 150mm increments

L1/S 110

Manufactured Length 150mm increments

For 95-110mm cavity wall construction. Standard duty loading condition.

Height ‘h’

88

88

107

125

150

162

171

200

200

200

For 110-125mm cavity wall construction. Standard duty loading condition.

Height ‘h’

95

121

145

195

195

195

Thickness ‘t’

1.6

1.8

2

2

2

2.5

2.5

2.9

2.9

3.2

Thickness ‘t’

2

2

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

12

16

19

21

23

27

27

27

26

27

Total UDL(kN) Load ratio (1)

16

22

24

27

26

25

Total UDL(kN) Load ratio (2)

10

13

16

17

18

22

20

20

19

22

Total UDL(kN) Load ratio (2)

13

18

18

22

19

20

0600 1350 1650 1950 2250 2550 2850 3150 3750 4200 1200 1500 1800 2100 2400 2700 3000 3600 4050 4800

‘h’ nominal 95

88

0600 1650 1950 2250 3150 4200 1500 1800 2100 3000 4050 4800

‘h’ nominal

100

95

108

100

L1/S 100

L1/HD 100

Manufactured Length 150mm increments

For 95-110mm cavity wall construction. Heavy duty loading L1/Scondition. 100

Height ‘h’

L1/HD 100

1350 1650 2250 2700 3150 3750 1500 2100 2550 3000 3600 4200

L1/S 130

Manufactured Length 150mm increments

0600 1650 1950 2550 3150 4200 1500 1800 2100 3000 4050 4800

110

135

163

203

203

203

203

Height ‘h’

103

128

190

190

190

190

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

3.2

3.2

For 130-145mm cavity wall construction. Standard duty loading condition.

Thickness ‘t’

2

2

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

30

30

40

40

40

35

33

Total UDL(kN) Load ratio (1)

16

22

24

27

26

25

Total UDL(kN) Load ratio (2)

22

22

35

35

35

32

28

Total UDL(kN) Load ratio (2)

13

18

18

22

19

20

0600 1200

‘h’

‘h’ nominal

95

nominal

100 88 L1/S100

95

128

100

L1/HD 100

L1/HD 100

L1/XHD 10 0

Manufactured Length 150mm increments

0600 1650 1950 1500 1800 2100

L1/S 150

Manufactured Length 150mm increments

0600 1650 1950 2250 3150 4200 1500 1800 2100 3000 4050 4800

For 95-110mm cavity wall construction. L1/HD 100 Extra heavy duty loading condition.

Height ‘h’

163

163

203

Height ‘h’

100

125

180

180

180

180

Thickness ‘t’

3.2

3.2

3.2

For 150-165mm cavity wall construction. Standard duty loading condition.

Thickness ‘t’

2

2

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

50

50

55

Total UDL(kN) Load ratio (1)

16

22

24

27

26

25

Total UDL(kN) Load ratio (2)

45

45

45

Total UDL(kN) Load ratio (2)

13

18

18

22

19

20

L1/HD 100

‘h’

‘h’ nominal

95

10

88

100 L1/HD 100

nominal

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

95

148

100

All above Lintels have continuous bottom plates. Heavy duty and Wider Inner Leaf variants available.

Load Ratio - see Structural Performance on page 33.

11


50-70 mm

WIDE INNER LEAF

70-95 mm

WIDE INNER LEAF

CAVITY

L1/S WI L 50

Manufactured Length 150mm increments

For 50-70mm cavity wall construction. Standard duty loading condition.

Height ‘h’

96

110

136

162

172

196

196

Thickness ‘t’

2

2

2

2

2.5

3.2

3.2

Total UDL(kN) Load ratio (1)

12

15

20

24

28

30

27

Total UDL(kN) Load ratio (2)

10

13

18

20

21

26

25

0600 1650 1500 1800

1950 2250 2550 3150 3750 2100 2400 3000 3600 4200

CAVITY

L1/S WI L 7 5 For 70-95mm cavity wall with wide inner block/brick construction. Standard duty loading condition.

48

95

125

68

L1/HD WIL 5 0

Manufactured Length 150mm increments

For 50-70mm cavity wall construction. Heavy duty loading L1/Scondition. WIL 50

Height ‘h’

95

109

161

161

200

Thickness ‘t’

2.9

2.9

2.9

2.9

3.2

Total UDL(kN) Load ratio (1)

20

25

35

30

36

Total UDL(kN) Load ratio (2)

17

22

27

25

32

L1/HD WIL 50

0600 1350 1200 1500

L1/HD WIL 75

1650 1950 2250 1800 2100 2700

For 70-95mm cavity wall with wide inner block/brick construction. L1/S WIL 75 Heavy duty loading condition. L1/HD WIL 75

101

90

110

134

158

167

192

192

Thickness ‘t’

2

2

2

2

2

2.5

3.2

3.2

Total UDL(kN) Load ratio (1)

12

13

20

19

24

27

30

27

Total UDL(kN) Load ratio (2)

10

11

17

17

20

21

26

25

Manufactured Length 150mm increments

0600 1350 1950 2250 1200 1800 2100 2700

Height ‘h’

130

155

192

192

Thickness ‘t’

2.9

2.9

2.9

3.2

Total UDL(kN) Load ratio (1)

20

25

30

36

Total UDL(kN) Load ratio (2)

17

22

25

32

‘h’ nominal

L1/S 125WIL 50

95

68

L1/S WIL 75

125

L1/HD WIL 75

L1/HD WIL 50

L1/HD WIL 50

L1/HD WIL 75

L1/XHD WI L 50

Manufactured Length 150mm increments

0600 1650 1500 1800

1950 2100

L1/XHD WIL 75

Manufactured Length 150mm increments

0600 1650 1950 1500 1800 2100

For 50-70mm cavity wall construction. L1/HD WIL 50 Extra heavy duty loading condition.

Height ‘h’

161

196

196

Height ‘h’

157

192

192

Thickness ‘t’

3.2

3.2

3.2

For 70-95mm cavity wall with wide inner L1/HD block/brick WIL 75 construction. Extra heavy duty loading condition.

Thickness ‘t’

3.2

3.2

3.2

Total UDL(kN) Load ratio (1)

45

45

50

Total UDL(kN) Load ratio (1)

45

45

50

Total UDL(kN) Load ratio (2)

40

40

40

Total UDL(kN) Load ratio (2)

40

40

40

L1/HD WIL 50

L1/HD WIL 75

‘h’ nominal

‘h’ nominal

95

12

Height ‘h’

125

‘h’ nominal

48

1950 2250 2550 3150 3750 1800 2100 2400 3000 3600 4200

L1/S WIL 75

L1/S WIL 50

95

0600 1500 1350 1650

‘h’ nominal

‘h’ nominal 95

Manufactured Length 150mm increments

48

125 L1/HD WIL 50

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

95

68

125 L1/HD WIL 75

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

13


95-110 mm

WIDE INNER LEAF

50-110 mm

WIDE OUTER LEAF

CAVITY

L1/S WI L 100

Manufactured Length 150mm increments

For 95-110mm cavity wall with wide inner block/brick construction. Standard duty loading condition.

Height ‘h’

92

Thickness ‘t’

CAVITY

1950 2550 3150 3750 2400 3000 3600 4200

L1/S WOL 50

Manufactured Length 150mm increments

107

150

177

188

188

Height ‘h’

93

110

162

200

200

200

2

2

2

2.5

3.2

3.2

For 50-70mm cavity wall construction with wide outer masonry. Standard duty loading.

Thickness ‘t’

2.5

2.5

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

13

17

23

24

30

27

Total UDL(kN) Load ratio (1)

14

15

23

30

32

30

Total UDL(kN) Load ratio (2)

11

14

18

18

26

25

Total UDL(kN) Load ratio (2)

11

13

18

22

30

26

0600 1350 1200 1800

150 max

‘h’ nominal

‘h’ nominal

95

88

125

125

L1/HD WIL 1 00

Manufactured Length 150mm increments

0600 1500 1350 1800

1950 2250 2100 2700

For 95-110mm cavity wall with wide inner block/brick construction. Heavy duty loading condition.

Height ‘h’

113

150

188

188

Thickness ‘t’

2.9

2.9

2.9

3.2

Total UDL(kN) Load ratio (1)

20

25

30

36

Total UDL(kN) Load ratio (2)

17

22

25

32

100

48

L1/S 50 WOL

L1/S WOL 75

Manufactured Length 150mm increments

For 70-95mm cavity wall L1/S 50 WOL construction with wide outer masonry. Standard duty loading. L1/S 75 WOL

‘h’ nominal

0600 1500 1800 2250 2850 3150 1350 1650 2100 2700 3000 3600

‘h’ L1/S 50 WOL

150 max

0600 1500 1800 2250 2850 3150 1350 1650 2100 2700 3000 3600

Height ‘h’

93

110

162

200

200

200

Thickness ‘t’

2.5

2.5

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

14

15

23

30

32

30

Total UDL(kN) Load ratio (2)

11

13

18

22

30

26

nominal

95

88

125

125

68

100 L1/S 75 WOL

L1/XHD WIL 100 For 95-110mm cavity wall with wide inner block/brick construction. Extra heavy duty loading condition.

Manufactured Length 150mm increments

0600 1650 1500 1800

1950 2100

Height ‘h’

165

188

188

Thickness ‘t’

3.2

3.2

3.2

Total UDL(kN) Load ratio (1)

45

45

50

Total UDL(kN) Load ratio (2)

40

40

40

L 1 / S W OL1/S L 100 1 0WOL 0 For 95-110mm cavity wall L1/Souter 75 WOL construction with wide masonry. Standard duty loading. L1/S 100 WOL

14

88

125

0600 1500 1800 2250 2850 3150 1350 1650 2100 2700 3000 3600

Height ‘h’

93

110

162

200

200

200

Thickness ‘t’

2.5

2.5

2.5

2.9

3.2

3.2

Total UDL(kN) Load ratio (1)

14

15

23

30

32

30

Total UDL(kN) Load ratio (2)

11

13

18

22

30

26

150 max

‘h’ nominal

95

Manufactured Length 150mm increments

‘h’ nominal

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

125

88

100 L1/S 100 WOL

All above Lintels have continuous bottom plates. Heavy duty and Wider Inner Leaf variants available.

Load Ratio - see Structural Performance on page 33.

15


50-100 mm

L1/E-STANDARD AND INNER LEAF

CAVITY

L1/E Eaves Lintels

Note: Maximum block dimensions 125mm (80mm cavity)

L1/E 50

Manufactured Length 150mm increments

For 50-80mm (max) cavity wall construction. For use at eaves level. Composite beam with blockwork

Height ‘h’

95

134

150

150

Thickness ‘t’

2

2

2

2.5

Total UDL(kN)

18

20

22

25

0600 1650 2250 2550 1500 2100 2400 2700

‘h’ nominal

45 48

100 L1/E 50 Note: Maximum block dimensions 125mm (100mm cavity)

L1/E 75

Manufactured Length 150mm increments

For 70-100mm (max) cavity wall construction. For use at eaves level. Composite beam with blockwork

Height ‘h’

95

134

150

150

Thickness ‘t’

2

2

2

2.5

Total UDL(kN)

18

20

22

25

L1/E 75

0600 1650 2250 2550 1500 2100 2400 2700

‘h’ nominal

L1/E lintels are designed to provide support over

45 68

100 L1/E 50

openings at eaves level. To achieve the loading figures indicated on the opposite page, the lintel must be built in with the

Note: Maximum block dimensions 150mm (80mm cavity)

blockwork as shown, and a continuous wall plate must be provided over the opening and reveals. Expanded polystyrene

The loading figures are achieved by using composite action of the inner leaf blockwork.

Easy curtain bracket fixing. No batten required Indented plaster key

Providing the maximum cavity width for the appropriate lintel is maintained the outer flange will have a brickwork bearing of 13mm.

L1/E WI L 5 0

Manufactured Length 150mm increments

For 50-80mm (max) cavity wall construction. For use at eaves level. Composite beam with wide inner leaf blockwork

Height ‘h’

91

136

136

150

Thickness ‘t’

2

2

2.5

2.5

Total UDL(kN)

18

20

25

20

L1/E WIL50

L1/E 75

The lintels must be ‘built in’ with the blockwork positioned against the upstand of the lintel

Plaster key across cavity

together with a continuous wall plate as shown.

0600 1650 2250 2550 1500 2100 2400 2700

‘h’ nominal

45 48

16

125 L1/E 50

All above Lintels have continuous bottom plates.

Load Ratio - see Structural Performance on page 33.

17


50-110 mm

Heavy Duty Lintels

CAVITY

50-110 mm

Extra Heavy Duty Lintels

Note: Maximum block dimensions 125mm (50mm cavity)

CAVITY

Note: Maximum block dimensions 125mm positioned flush with inner face of Universal Beam (50mm cavity)

L5/50

Manufactured Length 150mm increments

0600 1650 2250 3150 4200 1500 2100 3000 4050 4800

L6/50

Manufactured Length 150mm increments

0600 5200 5400 5800 6200 6600 4800

For 50-70mm cavity wall construction. Heavy duty loading condition.

Height ‘h’

229

229

229

229

229

End bearing

200

200

200

200

200

200

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

For large span 50-70mm cavity wall construction. Extra heavy duty loading condition.

Total allowable UDL (kN)

86

75

70

65

60

55

Total UDL(kN) Load ratio 19:1

70

60

50

45

40

‘h’ nominal

95

207

100

48

Manufactured from a 203 x 133 x 30kg/m Universal Beam, with external galvanised outer flange and galvanised base plate.

L5 L5/50

245 Note: Maximum block dimensions 125mm (70mm cavity)

L5/75

Manufactured Length 150mm increments

0600 1650 2250 3150 4200 1500 2100 3000 4050 4800

For 70-95mm cavity wall construction. L5 L5/50 Heavy duty loading condition.

Height ‘h’

229

229

229

229

229

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

Total UDL(kN) Load ratio 19:1

70

60

50

45

40

L5/75

Note: Maximum block dimensions 125mm positioned flush with inner face of Universal Beam (70mm cavity)

L6/75

L6/75

For large span 70-90mm cavity wall construction. Extra heavy duty loading condition.

Manufactured Length 150mm increments

0600 5200 5400 5800 6200 6600 4800

End bearing

200

200

200

200

200

200

Total allowable UDL (kN)

86

75

70

65

60

55

‘h’ nominal 207

L5 L5/50

95

68

100 Manufactured from a 203 x 133 x 30kg/m Universal Beam, with external galvanised outer flange and galvanised base plate.

L5/75

265

Note: Maximum block dimensions 125mm (95mm cavity)

L5/100

L5/100

For 95-110mm cavity wall construction. Heavy duty loadingL5/75 condition. L5/100

Note: Maximum block dimensions 125mm positioned flush with inner face of Universal Beam (95mm cavity)

L6/75

Manufactured Length 150mm increments

0600 1650 2250 3150 4200 1500 2100 3000 4050 4800

L6/100

Height ‘h’

229

229

229

229

229

Thickness ‘t’

2.9

2.9

2.9

3.2

3.2

For large span 95-110mm cavity wall construction. Extra heavy duty loading condition.

Total UDL(kN) Load ratio 19:1

70

60

50

45

40

‘h’ nominal

95

18

88

100 L5/100

Manufactured Length 150mm increments

0600 5200 5400 5800 6200 6600 4800

End bearing

200

200

200

200

200

200

Total allowable UDL (kN)

86

75

70

65

60

55

207

All above Lintels have continuous bottom plates. Heavy duty variants available.

Load Ratio - see Structural Performance on page 33.

Manufactured from a 203 x 133 x 30kg/m Universal Beam, with external galvanised outer flange and galvanised base plate.

285

19 L6/100


45-55 mm

L7-TIMBER FRAME

CAVITY

Timber Frame Lintels

L7/50

Manufactured Length 150mm increments

0600 1350 1950 2550 3750 1200 1800 2400 3600 4800

For 45-55mm cavity timber frame construction. Wider or narrower cavity lintels are available but not stocked. Information on request.

Height ‘h’

110

110

135

185

250

Thickness ‘t’

2.0

2.5

2.5

2.8

3.0

4

5

5

9

12

Total Allowable UDL (kN)

25 23 ‘h’ nominal

95

Heavy duty and wider cavity variants available.

40 L7/50

L7-TIMBER

70-85 mm

FRAME

CAVITY

L7/75

Manufactured Length 150mm increments

0600 1950 2550 3750 1800 2400 3600 4800

For 70-85mm cavity timber frame construction. Wider or narrower cavity lintels are available but not stocked. Information on request. L8/50

Height ‘h’

165

165

240

315

Thickness ‘t’

2.0

2.5

3.0

3.0

9

12

12

12

Total Allowable UDL (kN)

25 40 Wider cavity variants available.

‘h’ nominal

Designed for use in timber frame construction, the L7 lintel provides support to the outer leaf to brickwork over openings. dpc Retaining clip

38mm timber block (not supplied)

95 L7/50

To achieve the loading figures shown, the L7 lintel must be secured with restraining clips and a block /batten (not supplied) must be used to prevent lateral deflection (twist) during the building stage. A single block/batten 300mm long at mid span will be sufficient. Restraining clips should be fixed with 3.3 x 50mm galvanised nails at no more than 500mm centres each side of mid span. Clips should be positioned with their vertical centres at the top of the lintel to allow for lintel movement and shrinkage of timber frame.

68

50-65 mm

L 8 - C O N C L9 R E T E I N N E R L I N T EL11 L

CAVITY

Note; When specifying check height dimensions

L8/50

L8/50

For 50-65mm cavity wall construction. For use with concrete L7/50 lintels. Wider or narrower cavity lintels are available but not stocked. Information on request. L10

Manufactured Length 150mm increments

0600 2250 2550 3150 2100 2400 3000 4800

Height ‘h’

150

225

225

225

Thickness ‘t’

2.5

2.5

2.9

3.2

7

8

10

12

L11

Total Allowable UDL (kN)

‘h’ nominal Wider cavity variants available.

20

95

48 40 L8/50

21


L7/50

SINGLE WALL LINTELS

Single Wall Lintels

Note: This Lintel must be propped during construction.

L7/50

L9

Manufactured Length 150mm increments

For use with solid brick or block wall construction.L8/50 Light duty loading condition.

0600 1350 1800 2250 1200 1650 2100 2700

Height ‘h’

55

86

86

113

Thickness ‘t’

2.5

2.5

2.9

3.2

6

8

8

10

Total Allowable UDL (kN)

‘h’ nominal

200 L9

L8/50

Heavy duty and wider masonry variants available.

L11 Note: This Lintel must be propped during construction.

LL7/50 10

Manufactured Length 150mm increments

For use with single 102mm L9 brickwork wall construction. Light duty loading condition.

Height ‘h’

Thickness ‘t’

L10

Face brickwork

L7/50

IG Single Wall Lintels are for the support of loads from half-brick to full brick widths in solid brick or block wall construction.

Total Allowable UDL (kN) L11

L8/50 95

Door lining Door stop

110

210

210

3.0

3.0

2.8

3.0

4

8

10

6

Heavy duty and wider masonry variants available.

L10

L11 Note: This Lintel must be propped during construction.

The L9 Lintel allows the face of brickwork to show on both sides of an opening in a full brick-wide wall.

L11

Meter Box Lintel, L10 and L11 lintels allow the face of the brickwork to show on one side of an opening in half-brick wide constructions. Meter Box Lintel lengths from 750-1350mm in increments of 150mm.

Manufactured Length 150mm increments

Height ‘h’ For use with single leaf face brick L9 or block wall. L11

L8/50

Door

Single skin lintels should always be propped. NHBC guidelines propose no greater than a 1m span for props during construction.

22

60

‘h’ nominal

L10 lintel

Architrave

L11

0600 1350 1950 2850 1200 1800 2700 3000

0600 1950 2550 2850 1800 2400 2700 3600

150

225

225

225

Thickness ‘t’

2.5

2.5

2.9

3.2

Total Allowable UDL (kN)

16

20

12

12

225 150

L9

L10

Heavy duty and wider masonry variants available.

95

95

L11

L11

To achieve loading figures indicated, lintel must be built-in with brickwork/blockwork as shown. In addition, it must be suitably restrained during construction. Heavier duty variants available.

23


75-215 mm

BOX LINTELS - STANDARD

BLOCKWORK

Box Lintels B OX 100

Manufactured Length 150mm increments

For internal openings, eaves or 100 block and tile hanging.

Height ‘h’

75

150

150

150

215

215

215

Thickness ‘t’

2

1.6

2

2

2.5

2.5

2.5

Total allowable UDL (kN)

18

18

25

20

30

25

20

0600 1650 1950 2550 2850 3750 4350 1500 1800 2400 2700 3600 4200 4800

95 95 ‘h’ nominal 75

Perforated steel for plaster key

BOX 140

Manufactured Length 150mm increments

0600 1650 2250 2550 2850 3750 4350 1500 2100 2400 2700 3600 4200 4800

For internal openings, eaves or 140/150 block and tile hanging.

Height ‘h’

150

150

150

150

215

215

215

Thickness ‘t’

1.6

2

2

2

2.5

2.5

2.5

Total allowable UDL (kN)

15

30

25

20

35

30

25

145

‘h’ nominal

Perforated steel for plaster key

B OX 75 For internal openings, 75 blockwork or 100 blockwork.

Manufactured Length 150mm increments

Height ‘h’ Height ‘h’

75mm wide 100mm wide

Thickness ‘t’

0600 1650 1800

100 75

1.6

100 75

Box lintels are designed for use over internal or external openings, or when tile hanging is required with solid brick or block wall construction, or at eaves level.

2.0

BOX 200

Manufactured Length 150mm increments

0600 1950 2550 2850 3750 4350 1800 2400 2700 3600 4200 4800

For internal openings, eaves or 215 block and tile hanging.

Height ‘h’

150

150

150

215

215

215

Thickness ‘t’

1.6

2

2

2.5

2.5

2.5

Total allowable UDL (kN)

18

25

20

30

25

20

95 75

Total allowable UDL (kN)

15

10

Perforated steel for plaster key

‘h’ nominal Care should be taken to avoid shock loading when used with concrete floor or other heavy units. Insulation available at extra cost.

24

200 Perforated steel for plaster key

NOTE: The Flange of the Box 200 (or HD Box 200) is designed to support a nominal masonry load only, up to a maximum of 3kN/m run.

25


100-215 mm

BOX LINTELS - HEAVY DUTY

BLOCKWORK

Internal Lintels HD B OX 100

Manufactured Length 150mm increments

0600 1350 1950 1200 1800 2700

For internal openings, eaves or 100 block and tile hanging.

Height ‘h’

150

150

215

Thickness ‘t’

2.5

2.5

2.5

Total allowable UDL (kN)

50

45

40

64 & 100

‘h’ nominal

100 95

Rendering

100mm lintel Architrave

Perforated steel for plaster key

Plaster facing 28

Door liner

HD B OX 140

Manufactured Length 150mm increments

0600 1350 1950 1200 1800 2700

For internal openings, eaves or 140/150 block and tile hanging.

Height ‘h’

150

150

215

Thickness ‘t’

2.5

2.5

2.5

Total allowable UDL (kN)

50

45

40

Door

Door stop stop

‘h’ nominal

145

Perforated steel for plaster key

H D BOX 200

Manufactured Length 150mm increments

0600 1350 1950 1200 1800 2700

For internal openings, eaves or 215 block and tile hanging.

Height ‘h’

150

50

2.5

45

2.5

40

INT 100 (G790)

Total allowable UDL (kN)

2.5

‘h’ nominal

200

Overall Length of IG Lintel

Maximum Width of span of IG Lintel opening unit

Safe Safe distributed distributed loading with loading with 152mm coursing 229mm coursing of 100mm thick of 75/100mm thick walling above walling above lintel unit lintel unit

215

INT 64 (G780)

Thickness ‘t’

150

CAD CODES

I NT ER NA L 64 & 100

900

700

64

-

5

1050

850

64

-

5

1100

900

64

-

5

1200

1000

64

-

5

900

700

100

5

7

1050

850

100

5

7

1100

900

100

5

7

1200

1000

100

5

7

Designed to provide a quick and safe method of spanning small openings (up to 1000mm) in internal walls, IG internal lintels are both economical and easy to store, carry and use. When a minimum height of 152mm of brick/blockwork with well-filled joints of cement mortar is built over the lintel, the construction will be load-bearing for normal domestic building purposes after curing. The loading capacity of the lintel can be increased by increasing the height of the walling built across it.

In some circumstances these lintels may have an expanded metal lathing attached and may differ from the diagram shown.

Care should be taken to avoid shock loading when used with concrete floor or other heavy units. Perforated steel for plaster key

26

Insulation available at extra cost

NOTE: The Flange of the Box 200 (or HD Box 200) is designed to support a nominal masonry load only, up to a maximum of 3kN/m run.

27


Lintel Soffit Cladding

Stainless Steel Lintels High Performance for harsh environments

Manufactured from rigid PVC to match UPVC window frames, the IG lintel soffit cladding is designed to clip over the front flange of the external wall lintel to provide an aesthetically pleasing appearance to the exposed outer flange.

• IG standard lintels are available in stainless steel.

Supplied in white (type SCW) and brown (type SCB), soffit cladding is available in lengths to meet all standard openings, for example a 1500 mm length is available to fit a structural opening width of 1200 mm. The cladding simply clips into place - no special tools are required.

• Outstanding durability through austenitic chromium nickel steel to BS EN 10088-2 1.4301 (304S15).

Note: When soffit cladding is used, external wall lintels must be installed with a flexible damp proof course (DPC) which must project beyond the front face of the cladding.

• Suitable for use in coastal and industrial environments. • All IG galvanised steel loading tables apply.

109mm

Universal Arch

Special Lintel Enquiry Fax Back Please complete and fax back the form overleaf...

When low rise arches are required in brickwork above openings, the IG Universal Arch provides the ideal former for the bricklayer. Vacuum-formed from white pigmented, external weathering quality, impact resistant polystyrene. Suitable for use in cavity walls and with timber frame construction, the unit is designed to sit on any steel lintel with an outer flange of 90mm to 95mm. The design provides an arch rise of 75mm for arch spans from 475mm to 1785mm, and a rise of 150mm for arch spans from 1916mm to 2725mm.

28

Opening Sizes

Nominal Arch Span

Arch Rise

IG Ref.

CAD Code

450-500 600-650 660-710 900-950 1000-1050 1060-1110 1200-1250 1300-1350 1460-1510 1600-1650 1675-1725 1760-1810 1890-1940 2010-2060 2090-2140 2250-2300 2300-2350 2400-2450 2505-2555 2700-2750

475 625 685 925 1025 1085 1225 1325 1485 1625 1700 1785 1916 2035 2115 2275 2325 2425 2530 2725

75 75 75 75 75 75 75 75 75 75 75 75 150 150 150 150 150 150 150 150

IGAR 475 IGAR 625 IGAR 685 IGAR 925 IGAR 1025 IGAR 1085 IGAR 1225 IGAR 1325 IGAR 1485 IGAR 1625 IGAR 1700 IGAR 1785 IGAR 1916 IGAR 2035 IGAR 2115 IGAR 2275 IGAR 2325 IGAR 2425 IGAR 2530 IGAR 2725

IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 75 IGAR 150 IGAR 150 IGAR 150 IGAR 150 IGAR 150 IGAR 150 IGAR 150 IGAR 150

IG’s comprehensive range of standard lintels covers all applications in conventional building constructions. When a building requires more unconventional support solutions, IG has the expertise to design and manufacture special lintels that suit all shapes and sizes. These special lintels some of which feature below - can include radius, natural arch, gothic arch, corner, apex, cant brick, ‘I’ beam, 200mm-wide inner leaf, feature plate and wider cavity.

IG’s Special Lintel Service is the product of a wide experience in successfully meeting the needs of architects of both domestic and commercial buildings. It embraces every aspect of lintel design and supply, from calculation of shape, size and loading to coordination with construction scheduling and consideration of budgetary requirement. IG’s ultimate aim is to provide the most cost-effective design solution to special lintel problems. In order to best utilise this free service, please ensure that all relevant details are provided i.e. wall construction (outer leaf, cavity, inner leaf), clear spans, arch rise, radius and any other factor which may affect the special lintel design and costing.

When loading figures are not available, then please provide a full set of drawings including: (a) plans (b) elevations (c) sections (d) wall construction (e) floor construction and direction This information will enable our design engineers to calculate the relevant loadings. Information can be sent directly to the Technical Department by email: info@igltd.co.uk or by fax back on 01633 486495.

29


FAX BACK

SPECIAL ARCH LINTELS

FAX BACK

SPECIAL MITRED LINTELS

SPECIAL MITRED LINTEL ENQUIRY FORM

SPECIAL ARCH LINTEL ENQUIRY FORM Please complete all details and submit to Technical on Fax: 01633 486495. If you require further information please Tel: 01633 486461.

Please complete all details and submit to Technical on Fax: 01633 486495. If you require further information please Tel: 01633 486461.

From:

From:

Name

Name Company

Company Tel:

Fax:

Tel:

Fax:

Email

Job reference

Email

Job reference

R A D I U S A RC H L I N T E L

R

AP E X LI N TE L

R

(clear span) A C

ELEVATION

Lintel Dimensions

x째

C

(clear span) A

Wall Construction

ELEVATION

C

Plaster Key Requirements (please tick) Lintel Dimensions

C

Wall Construction

Plaster Key Requirements (please tick)

Clear span

A

mm

Outer leaf

mm

Inside only

Rise

R

mm

Cavity width

mm

Both sides

Clear span

A

mm

Outer leaf

mm

Inside only

End bearing

C

mm

Inner leaf

mm

None

Rise

R

mm

Cavity width

mm

Both sides

End bearing

C

mm

Inner leaf

mm

None

N AT U R A L A R C H L I N T E L

R (clear span) A C

C

ELEVATION

Lintel Dimensions

A

BRICK REVEAL

Plaster Key Requirements (please tick)

Wall Construction

Clear span

A

mm

Outer leaf

mm

Inside only

Rise

R

mm

Cavity width

mm

Both sides

End bearing

C

mm

Inner leaf

mm

None

C O R N E R L IN T E L

BRICK REVEAL

B

C

Dimensions Required

PA RA B O L I C A RC H L I N T E L

R (clear span) A ELEVATION

C

Lintel Dimensions

C

Wall Construction

Clear span

A

mm

Outer leaf

Rise

R

mm

End bearing

C

mm

Important Notes: Do not allow for bearing, this will be added at design stage.

Wall Construction

Plaster Key Requirements (please tick)

A-B =

mm

Outer leaf

mm

Inside only

B-C =

mm

Cavity width

mm

Both sides

A-C =

mm

Inner leaf

mm

None

Plaster Key Requirements (please tick) mm

Inside only

Cavity width

mm

Both sides

Inner leaf

mm

None

Important Notes: Do not allow for bearing, this will be added at design stage.

A

BRICK REVEAL

BRICK REVEAL

D

B AY L I N T E L R

G O T H I C A R C H L IN T E L

C

B (clear span) A ELEVATION

C

Lintel Dimensions

Dimensions Required

C

Wall Construction

Plaster Key Requirements (please tick)

Clear span

A

mm

Outer leaf

mm

Inside only

Rise

R

mm

Cavity width

mm

Both sides

End bearing

C

mm

Inner leaf

mm

None

Wall Construction

Plaster Key Requirements (please tick)

A-B =

mm

Outer leaf

mm

Inside only

B-C =

mm

Cavity width

mm

Both sides

C-D =

mm

Inner leaf

mm

None

Special Lintels continued over page

Enquiries for Special Lintels should be faxed to: 01633 486495 30

Enquiries for Special Lintels should be faxed to: 01633 486495 31


SPECIAL PLAN

FAX BACK

RADIUS LINTELS

TECHNICAL INFORMATION

SPECIAL PLAN RADIUS LINTEL ENQUIRY FORM Please complete all details and submit to Technical on Fax: 01633 486495. If you require further information please Tel: 01633 486461.

From:

Name the humidity and

STRUCTURAL PERFORMANCE

Company

condensation conditions normally experienced in habitable

Tel:

Fax:

Email

Job reference

The loading tables in this brochure are the result of testing at the group’s premises under the supervision and direction of the British Board of Agrèment.

A

Important Notes: Do not allow for bearing, this will be added at design stage.

All

tests

were

carried

out

Lintels conform to the requirements of BS EN 845–2:2003 for corrosion protection, workmanship and materials.

in

accordance

with

BS 5977 Part 2 1983 and BS EN 846–9:2000 and relate to

P L AN R A DI U S LI NT E L

buildings.

the strength and torsional stiffness of lintels to sustain total

IG lintels are rated by the Housing Association Property Mutual as satisfying the ‘35 years to first maintenance’ durability rating, laid down in the ‘HAPM Component Life Manual’.

uniformly distributed loads. R

Galvanised lintels - lintels are fabricated from galvanised The loading tables shown for the L1 (where noted), L1/E, L5 Lintel Dimensions

Wall Construction

Plaster Key Requirements (please tick)

and L11 lintels are the results of testing in accordance with

Clear span

A

mm

Outer leaf

mm

Inside only

BS 5977 Part 2 1983 and BS EN 846–9:2000, taking into

Radius

R

mm

Cavity width

mm

Both sides

account composite assistance from the surrounding

Inner leaf

mm

None

For more information on other special lintels please complete details above, tick boxes below and Faxback or contact the Technical Department Hotline on 01633 486461.

CORNER POST

CANT BRICK LINTEL

I BEAMS

VENETIAN ARCH LINTEL

steel to BS EN 10142 1991 Specification for continually hot dip zinc coated low carbon steel sheet and strip for cold forming: Technical advisory conditions, grade Fe P01 G, with a coating type Z600 giving a minimum coating weight

masonry, this masonry should be of good quality (in

(triple spot test) of 600g/m2; including both sides but with

accordance with BS 5628).

a minimum yield stress of 250 N/mm2.

A lintel should not exceed a maximum vertical or horizontal

Stainless steel - All IG lintels can be manufactured with

deflection of 1/325 x the effective span, when subject to the

stainless steel.

safe working load. Stainless steel lintels and expanded metal lathing are Note:

formed from Austenitic Chromium Nickel Steel to

Load ratio 1 - applies to loads with an inner to outer leaf ratio

BS EN 10088-2 1.4301 (304S15) and require no additional

of between 1 :1 and 3 :1. This ratio is normally applicable to

corrosion treatment. Higher grades of stainless steel can be

lintels that support:

supplied on request - BS EN 10088-2 1.4401 (316S31).

a. masonry

INSTALLATION

b. masonry and timber floors For the lintels to perform to the quoted loading figures and to Load ratio 2 - applies to loads with an inner to outer leaf ratio of between 4 :1 and 19:1. This ratio is normally applicable

meet the durability expectations included in this brochure, the following information MUST be adhered to:

to lintels supporting:

TIMBER ARCH LINTEL

ISLAMIC ARCH LINTEL

a. constructions with concrete floors b. eaves applications

1. Lintels damaged in transit should not be used. 2. Check the correct lintel is being installed. 3. All bearing areas should be prepared using full

F IRE TEST

bricks/blocks or padstones. 4. Lintels should be installed with a minimum 150mm end

NOTCHED LINTEL

CRANKED LINTELS

The L1 profile has been subjected to two fire tests by:

bearing at both ends, be fully bedded on bricklaying

a. The fire research station, Boreham Wood.

mortar and levelled both longitudinally and horizontally.

b. The Warrington Fire Research Station.

When limited end bearings are unavoidable, check with

In both cases one hour fire rating was achieved with the

IG technical office for suitability.

load successfully supported 48 hours later. Further details available on request.

5. Open back lintels should be filled with masonry in accordance with BS 5977 and a full block built in

END PLATED LINTELS

STEPPED LINTELS

DURABILITY

through the end bearing and allowed to cure before continuing building.

The service life of lintels will be equal to the life expectancy of the building when installed with a flexible DPC and within

6. The inner and outer leaves supported by the lintel should be raised together to avoid excessive eccentricity of

Enquiries for Special Lintels should be faxed to: 01633 486495 Technical information continued over page

32

33


loading. Masonry above lintels should be allowed to cure before applying floor or roof loads. If this is not achievable, temporary support in the form of props should be used. NHBC guidelines propose no greater than a 1m span for props during construction. 7. When installing concrete floor units or other heavy

10. Masonry should not overhang any flange by more than 25mm. 11. The lintel toe must project beyond the window/door

indicates the degree of stiffness the lintel will exhibit under a given load and span. The greater the value of Ixx, the less

flange and the frame to avoid moisture penetration.

Zxx - This is the section modulas and is used when ●

maximum bending stresses that the lintel section can be 12. When the underside of a lintel is exposed, its appearance

loading. Temporary support in the form of props is

can be enhanced by the addition of lintel soffit cladding,

advisable if there is a limited amount of masonry to the

supplied in white and brown, or by the application of a

Web buckling - This applies to box lintels and indicates the

outer leaf. Pre-cast floor units should be laid on a mortar

good quality etch primer and paint after installation.

maximum end reaction that the lintel can sustain before the

Handling, Storage & Disposal ●

QUALITY ASSURANCE ●

To help ensure optimum performance and economy from British and European Standards IG lintels are designed to

The service includes:

meet all relevant standards: for manufacture BS 5977 EN 10142 1991 Specification for continuously hot dip zinc coated low carbon steel sheet and strip and for stainless

procedure followed does not compromise the loading/

if future revisions to the specifications are be avoided:

steel BS EN 10088-2 1.4301 (304S15) cold rolled stainless

installation restrictions applicable to the products.

a. Plans including dimensions (1:50 scale preferable)

alloys

Agrément Certificate No 97/3343:

COSHH

The BBA have assessed the following lintels which are covered

We are not aware of any risk to the person, arising from

by the certificate: L1/S 50, L1/S 75, L1/S 100, L1/HD 50,

chemicals or any other substances present on or in our products.

L1/HD 75, L1/HD 100, L1/XHD 50, L1/XHD 75, L1/XHD 100,

Part L Compliance

c. Sections (1:50 scale preferable) d. Floor joist layouts or PC concrete floor layouts and loadings (1:50 scale preferable)

f.

Any other relevant information, such as steelwork layouts etc.

L1/S WIL 50, L1/S WIL 75, L1/S WIL 100, L1/HD WIL 50, L1/HD WIL 75, L1/HD WIL 100, L1/XHD WIL 50, L1/XHD WIL 75, L1/XHD WIL 100, L1/ST 50, L1/ST 75, L1/ST 100, L1/ST HD 50, L1/ST HD 75, L1/ST HD 100, L1/ST XHD 50,

masonry between the flange and the application level of

2. Provision of lintel location drawings.

any form of loading.

3. Provision of structural calculations for Building Regulation

BOX 140, BOX 200, L5/50, L5/75 and L5/100. Quality Control

9. In accordance with BS 5628 and NHBC requirements,

approval. We reserve the right to supply these only in

Manufacturing facilities and quality control systems at

all external wall lintels MUST be installed with a flexible

reply to a written request from a Building Control Authority

Cwmbran have been successfully assessed by the British

damp proof course with the exception of those

or upon the receipt of an order/letter of intent.

Standards quality inspectorate and the company has been

adequately protected by an eaves overhang or similar

4. Advice on the use of lintels in uncommon situations

form of protection. Stop ends should be provided as

such as reduced end bearings, point loads and the like. 5. Design and detailing of special lintels, see special lintel

No special disposal requirements, subject to local restrictions.

Following numerical analysis, the British Board of Agrément has concluded that IG’s steel lintels with continuous base plates do comply with the cold bridging requirements of Part L of the Building Regulations.

L1/ST XHD 75, L1/ST XHD 100, L1/S WOL 50, L1/S WOL 75, L1/S WOL 100, L7/50, L8/50, L9, BOX 75, BOX 100,

Environmental The expanded polystyrene core used in IG Lintels has an ozone depletion potential of zero.

awarded a Quality Assurance certificate to BS EN ISO 9002.

FASTRACK DATABASE FOR CAD USERS

page 29.

Proprietary stop ends should be used or alternatively

Tabular information in this brochure includes CAD Codes

the DPC should extend to the edge of the front toe and

TERMINOLOGY USED IN TABLES

that relate to the IG Fastrack Database. This allows architects and specifiers using computer aided design instant access

coursing) to allow formation of an integral stop end at a suitable perp joint. Weepholes should be used in the

Total UDL - This is the safe uniformly distributed load and

external masonry leaf to drain moisture away from the

indicates the total design load spread evenly along the

cavity. A minimum of 2 weepholes should be provided for

length of the lintel including an approximate safety factor.

to IG steel lintel details to produce complete and accurate drawings quickly and easily. Supplied on CD-ROM, the Fastrack Database is available in AutoCAD and DXF format. Specifiers can obtain free

each lintel, generally at 450mm centres. Weepholes can be

34

Where structural products are to be removed from an

These drawings should include the following information

etc. (1:50 scale preferable)

50 - 150mm beyond the end of the lintel (depending on

1. Preparation of lintel schedules from drawings supplied.

e. Roof layout, showing positions of girder trusses

avoid moisture entering the cavity near the reveals.

including proper washing of hands after contact.

existing installation, care must be taken to ensure that the

b. Elevations (1:50 or 1:100 scale)

specified by BS 5628 Part 3 1985 and the NHBC to

Some products may have a film of mineral cutting fluid after manufacture, therefore carry out personal hygiene

lintel specifications, IG provide a free expert advisory service.

Part 2:1983 and BS EN 845–2:2003; for galvanised steel BS

Footer plate

Protective gloves should be worn when handling or cutting material to prevent injury from sharp edges.

8. Point loads should not be applied directly to lintel

Prop

Handling of materials must comply with the Manual Handling Operation Regulations 1992.

webs fail by buckling.

TECHNICAL ADVISORY SERVICE

Lintel Header plate

Structural products must be installed in accordance with their specific instructions to prevent the risk of failure.

subjected to without exceeding the design stress.

masonry. Floor units should not be dragged into position.

flanges. Lintels should have a minimum of 150mm

There may be a risk of cuts from sharp edges or projections.

calculating the effects of uneven loading. It indicates the

components, care should be taken to avoid shock

bed to avoid load concentrations at high points in the

!

Hazard Identification

frame and it is recommended that a flexible sealing compound is used between the underside of the lintel

HEALTH AND SAFE TY

the lintel will deflect.

formed with proprietary weep vents or by leaving perp

Ixx - Represents the moment of inertia or the second

copies directly from IG’s Technical Services Department

joints open.

moment of area and is a characteristic of the lintel shape. It

01633 486499.

35


Cavity Trays A UNIQUE SINGLE ELEMENT CAVITY TRAY SYSTEM

GABLE ABUTMENT SYSTEM

that are folded on site to form right-angled corners. The

When a stepped or staggered gable abutment is formed the

75mm or 100mm cavity widths and incorporate mastic sealant

status of the external skin below the roof line changes to that

strips for overlapping areas.

trays are pre-creased and incorporate adjustment for 50mm,

of an internal skin. Accordingly, every gable abutment must be constructed so as to prevent dampness and rainwater from penetrating below the abutting roof line.

REFURBISHMENT SYSTEM The IG Refurbishment Cavity Trays System has been

The IG Gable Abutment Cavity Tray forms a stepped cavity

specifically developed to facilitate both the insertion of a new

dpc which is incorporated into the building during bricklaying.

tray into an existing wall and the repair or alteration of an

The completed structure is ready to receive roof lead flashing

existing damp proof course.

in the conventional way. WHERE TO USE THE IG CAVITY TRAY - TYPE GA Where a new lean-to extension meets an existing building, Manufactured from polypropylene, the IG Gable Abutment

the original external wall becomes an internal partition

Cavity Tray is available in three sizes to suit all roof pitches up

below the roof line and must be protected from dampness

to 60°. It is suitable for use in all brick, block and timber-

and the penetration or rainwater. Similarly, when a flat roof

framed constructions, the large bridging piece catering for

is resurfaced with added insulation, or is reconstructed as an

cavity widths from 50mm to 100mm.

inverted roof with top paving, the roof level may be raised

Supplied flat, the pre-creased trays allow for easy on-site

and thus require the skirting and its corresponding damp

folding to the required shape - catchment, left and right hand

proof course to be lifted.

or ridge tray. A locating lip facilitates the accurate placement

In addition, existing cavity trays which have been poorly

of trays during bricklaying.

constructed or have rotted allowing water to leak through must be replaced.

CALCULATING QUANTITIES The single-element system makes the calculation of quantities

THE IG CAVITY TRAY - TYPE RFT

very simple. Whether you are building with bricks or blocks

Available off-the-shelf in flat-packs, the IG Refurbishment

the rule is the same: you require one cavity tray per course

Tray combines ease of handling, transportation and use

per slope. On a double slope roof this calculation will give you

with complete effectiveness. It meets all current Building

an extra tray that can be used to lengthen the ridge tray if

Regulations and NHBC requirements. Manufactured from

required.

polypropylene, the IG Refurbishment Tray is 620mm wide

SIZES AND ROOF PITCHES

timber-framed constructions. The large bridging piece caters

The IG Gable Abutment Cavity Tray is available in three sizes

for cavity widths from 50mm to 100mm.

as detailed below. Trays are supplied in shrink-wrapped flat

Supplied flat, the pre-creased trays allow for easy on-site

packs in the quantities indicated or as single items.

folding to the required shape including forming left and right

by 280mm deep and is suitable for use in all brick, block and

Unique Products with Outstanding Benefits:

GABLE ABUTMENT

• Available off-the-shelf in easy-to-handle flat packs • Easy to calculate quantities, transport, use and adapt • Three sizes cover all roof pitches and cavity widths • Impact, tear and abuse resistant thermostable polypropylene 0.8mm thick • Compatible with all building materials • Resistant to acid, alkali and sulphate

REFURBISHMENT

• Meets all current Building Regulations and NHBC requirements • Will last the lifetime of the building

36

Outer Leaf Construction

hand end stops. A locating lip facilitates accurate placement

Roof Pitch

Code

Size In mm

Packs of:

during installation and the mastic sealant strip (protected by

Brickwork Blockwork

22.5°-60° more than 45°

GA1

375 x 310

50 or 10

release paper) ensures easy and watertight overlap jointing.

Brickwork Blockwork

15°-30° 35°-45°

GA2

525 x 310

5

SPECIFYING

Brickwork Blockwork

less than 15° 25°-40°

GA3

675 x 310

5

When specifying, the following wording is recommended: “Provide IG Refurbishment Cavity Tray System from

Note: All packs contain full installation instructions and folding instructions are printed on each tray

IG Limited, Cwmbran, Gwent NP44 1XY (01633 486486) to be installed as manufacturer’s instructions. Trays to be folded,

INTERNAL/EXTERNAL CORNERS

as instructions on tray, to form left and right hand stop ends”.

Flat-packed foldable corners complete the IG Gable Abutment

Refurbishment Cavity Trays

• The most cost-effective cavity tray system available

Cavity Tray System. Both internal (GAIC) and external (GAEC)

• Available from a national network of stockists

corner trays comprise factory-jointed two-piece assemblies

Code RFT

Size in mm 620 x 280

Packs of: 10

37


Specify Keylite

Also available from

The UK’s Only Indigenous

Centre Pivot Window

Top Hung Window

Fire Escape/Access Window

Conservation Window

Flat Roof System

White Finish Window

Electric Operation Windows & Blinds

Combination Flashings & Glazing Options

Roof Window Manufacturer

Standard Window Sizes (nominal wxh)mm Thermal

550x780

550x980

660x1180

780x980

780x1180

780x1400

940x1600

1140x1180

1340x980

Spec

01T

02T

03T

04T

05T

06T

07T

08T

09T

Spec

01HT

02HT

03HT

04HT

05HT

06HT

07HT

08HT

09HT

Toughened glazing system (28mm pane ‘Low E’Gas Filled) U = 1.4 w/m2k

Thermo-Plus

Laminated toughened glazing system with a UV filter (28mm pane ‘Low E’Gas Filled) U = 1.4 w/m2k

*U value relates to complete installed window

NOTE: Flashings available

Integral Blind Window The Roof Window... with the blind sealed inside the glass!  Blind is permanently sealed within the double glazing unit  Totally dust free environment  Requires NO CLEANING  Always appears new  Is protected from damage  Provides enhanced sun-shading  Improves the u-value of the sealed unit  Is factory-fitted  Available for entire window range i.e. Centre Pivot, Top Hung, Fire Escape / Access and Conservation Windows  Is magnetically operated

38

For more information

visit www.keylite.co.uk

39

IG lintel manual  

IG lintel manual www.igltd.co.uk