Dacatie BBA Accreditation by Brian F

Electronic Copy

CI/SfB (31.9)

Radway Building Products Salmon Fields Royton Oldham OL2 6JG Tel: 0161-627 2111 Fax: 0161-626 9993

Designated by Government to issue European Technical Approvals

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Agrément Certificate No 98/3474

DACATIE INSULATED PVC-U CAVITY CLOSERS Elément de remplissage Hohlraumfüllelement

Product Typical installation

• THIS CERTIFICATE REPLACES CERTIFICATE No 89/2132 AND RELATES TO THE DACATIE INSULATED PVC-U CAVITY CLOSERS REFERRED TO IN THE ACCOMPANYING DETAIL SHEETS. • The products are for use in masonry walls with cavity widths in the range 50 mm to 100 mm. • The products close cavities at window and door openings without forming a thermal bridge, and provide a dampproof barrier between the inner and outer wall leaves at the point of closure. The products are suitable for use with timber, PVC-U and metal window and door frames. continued

Regulations — Detail Sheet 1 1 The Building Regulations 1991 (as amended 1994) (England and Wales) The Secretary of State has agreed with the British Board of Agrément the requirements of the Building Regulations to which cavity closers can contribute in achieving compliance. In the opinion of the BBA, Dacatie Insulated PVC-U Cavity Closers, if used in accordance with the provisions of this Certificate, will contribute to meeting the relevant requirements. Requirement:

Requirement:

Comment:

Conservation of fuel and power

When the products are used as detailed in this Certificate, adequate provision will have been made to limit the thermal bridging which occurs around openings of which they form a part. They will, therefore, contribute to meeting the requirement of limiting the heat loss through the fabric, and the risk of condensation at the reveal will be minimal. See the Hygrothermal behaviour sections of the accompanying Detail Sheets.

Comment:

Requirement:

Resistance to weather and ground moisture

By preventing the passage of moisture to the inner leaf of a cavity wall, the products can contribute to meeting this Requirement. See the Weather resistance sections of the accompanying Detail Sheets.

Comment:

Regulation 7

Materials and workmanship

The products are acceptable. See the Durability sections of the accompanying Detail Sheets.

continued

Readers are advised to check the validity of this Certificate by either referring to the Index of Current BBA Publications or contacting the BBA direct (Telephone Hotline 01923 665400).

continued

Electronic Copy Requirement:

When used in conventional cavity walls, the products will not adversely affect the structural stability of the walls. Use of the products does not obviate the need for conventional wall ties between the inner and outer leaves at window and door openings. Specified closers will transfer back to the structure wind and impact loads imposed on the window or door. See the Structural stability sections of the accompanying Detail Sheets. In addition to the contribution which the products can make to meeting the relevant requirements, the following comment should be noted. Comment:

• Radway Building Products is a subsidiary of Quantum Profiles Systems, a member of the Edgbaston Group. • It is essential that the cavity closers are installed in accordance with the manufacturer’s instructions and the conditions set out in the Design Data and Installation parts of the accompanying Detail Sheets.

Requirement: Requirement:

B3(1) B4(1)

Internal fire spread (structure) External fire spread (walls)

When used in conventional cavity walls comprising two leaves of masonry, the products will not adversely affect the fire resistance of the walls where this is required to be half an hour. See the Properties in relation to fire sections of the accompanying Detail Sheets.

Comment:

2 The Building Standards (Scotland) Regulations 1990 (as amended) In the opinion of the BBA, Dacatie Insulated PVC-U Cavity Closers, if used in accordance with the provisions of this Certificate, will satisfy or contribute to satisfying the various Regulations and Technical Standards as listed below. Regulation: Standard:

10 B2.1

Fitness of materials Selection and use of materials and components

Comment: Regulation: Standard:

11 C2.1

Structure Construction

The products are acceptable. When used in conventional masonry cavity walls the product will not adversely affect the structure stability of the walls. Use of the product does not obviate the need for conventional wall ties between the inner and outer leaves and window and door openings. Specified closers will transfer back to the structure wind and impact loads imposed on the window or door. See the Structural stability sections of the accompanying Detail Sheets.

Comment:

Regulation: Standard: Standard:

12 D2.1 D4.1

Structural fire precautions Fire resistance Concealed spaces (cavities)

Walls incorporating the products can satisfy Standard D2.1 where the required fire resistance does not exceed half an hour. The products do not constitute a cavity barrier. See the Properties in relation to fire sections of the accompanying Detail Sheets.

Comment:

Regulations: Standard: Standard:

17 and 18 G2.6 G3.1

Preparation of sites and resistance to moisture Resistance to moisture from the ground Resistance to precipitation

Walls incorporating the products can satisfy these Standards. See the Weather resistance sections of the accompanying Detail Sheets.

Comment:

Standard: Standard:

G4.1 G4.2

Interstitial condensation Surface condensation

Walls incorporating the products can satisfy these Standards. See the Hygrothermal behaviour sections of the accompanying Detail Sheets.

Comment:

Regulation: Standard:

22 J2.1 J2.2

Conservation of fuel and power Standards for buildings in purpose group 1 Elemental standards

Walls incorporating the products can satisfy this Standard. See the Hygrothermal behaviour sections of the accompanying Detail Sheets.

Comment:

3 The Building Regulations (Northern Ireland) 1994 (as amended 1995 and 1997) In the opinion of BBA, Dacatie Insulated PVC-U Cavity Closers, if used in accordance with the provisions of the Certificate, will satisfy the various Building Regulations as listed below. Regulation:

Fitness of materials and workmanship

The products are acceptable. See the Durability sections of the accompanying Detail Sheets.

Comment: Regulation:

Resistance to ground moisture and weather

Cavity walls incorporating the products can satisfy this Regulation. See the Weather resistance sections of the accompanying Detail Sheets.

Comment:

continued

Electronic Copy Regulation:

Condensation

Walls incorporating the products can satisfy this Regulation. See the Hygrothermal behaviour sections of the accompanying Detail Sheets.

Comment:

Regulation: Regulation:

E6 E8

Internal fire spread — structure External fire spread

Walls incorporating the products can satisfy these Regulations where the required fire resistance does not exceed half an hour. See the Properties in relation to fire sections of the accompanying Detail Sheets.

Comment:

Regulation:

Conservation of fuel and power

Walls incorporating the products can satisfy this Regulation. See the Hygrothermal behaviour sections of the accompanying Detail Sheets.

Comment:

4 Construction (Design and Management) Regulations 1994 In the opinion of the BBA there is no information in this Certificate which relates to the obligations of the client, planning supervisor, designer and contractors to address their obligations under these Regulations.

5.4 In granting this Certificate, the BBA makes no representation as to: (a) the presence or absence of patent or similar rights subsisting in the product; and (b) the legal right of the Certificate holder to market, install or maintain the product; and (c) the nature of individual installations of the product, including methods and workmanship.

Conditions of Certification 5 Conditions 5.1 Where reference is made in this Certificate to any Act of Parliament, Regulation made thereunder, Statutory Instrument, Code of Practice, British Standard, manufacturer’s instruction or similar publication, it shall be construed as reference to such publication in the form in which it is in force at the date of this Certificate.

5.5 It should be noted that any recommendations relating to the safe use of this product which are contained or referred to in this Certificate are the minimum standards required to be met when the product is used. They do not purport in any way to restate the requirements of the Health & Safety at Work etc Act 1974, or of any other statutory or Common Law duties of care, or of any duty of care which exist at the date of this Certificate or in the future; nor is conformity with such recommendations to be taken as satisfying the requirements of the 1974 Act or of any present or future statutory or Common Law duties of care. In granting this Certificate, the BBA does not accept responsibility to any person or body for any loss or damage, including personal injury, arising as a direct or indirect result of the use of this product.

5.2 The quality of materials and the method of manufacture have been examined and found satisfactory by the BBA and must be maintained to this standard during the period of validity of this Certificate. This Certificate will remain valid for an unlimited period provided: (a) the specification of the product is unchanged; and (b) the manufacturer continues to have the product checked by the BBA. 5.3 This Certificate will apply only to the product that is installed, used and maintained as set out in this Certificate.

In the opinion of the British Board of Agrément, the Dacatie Insulated PVC-U Cavity Closers are fit for their intended use provided they are installed, used and maintained as set out in this Certificate. Certificate No 98/3474 is accordingly awarded to Radway Building Products. On behalf of the British Board of Agrément Date of issue: 20th March 1998

Director

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British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD2 7NG Fax: 01923 665301

For technical or additional information, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel:

Hotline: 01923 665400

Electronic Copy

CI/SfB (31.9)

Radway Building Products DACATIE TF8i, TF9i AND SF INSULATED PVC-U CAVITY CLOSERS

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Certificate No 98/3474

DETAIL SHEET 2

Product • THIS DETAIL SHEET RELATES TO THE DACATIE TF8i, TF9i AND SF INSULATED PVC-U CAVITY CLOSERS FOR USE IN MASONRY WALLS WITH CAVITY WIDTHS IN THE RANGE OF 50 mm TO 100 mm. This Detail Sheet must be read in conjunction with the Front Sheets, which give the products’ position regarding the Building Regulations, and the Conditions of Certification, respectively.

Technical Specification 1 Description 1.1 The Dacatie TF8i*, TF9i* and SF closers are available in 2.1 m, 3.0 m and 3.6 m lengths and in widths to suit 50 mm, 65 mm, 75 mm, 90 mm and 100 mm cavity widths (see Figure 1). Intermediate sizes are available on request. *i refers to insulation

1.2 The closers comprise a PVC-U outer profile surrounding a closed-cell, CFC-free, expanded polystyrene core conforming to BS 3837 : Part 1 : 1986(1996). 1.3 The PVC-U profiles include the following features: flanges that fit over both leaves of masonry flanges with nibs to resist water tracking from outer to inner leaf, and to aid plaster adhesion channels for locating fixing ties (TF8i and TF9i only) a plaster stop (TF8i only) against which the frame and internal plaster are positioned flanges with nail fixing holes at 150 mm centres (TF8i and TF9i only).

1.4 The PVC-U profiles are produced by conventional extrusion techniques. Expanded polystyrene boards are cut to size and fitted into them manually, where necessary with the aid of an acrylic sealant. 1.5 Visual and dimensional checks are undertaken regularly during the production of the closers and heat reversion and gelation tests are carried out on the PVC-U extrusions. 1.6 An injection moulded polypropylene tie is available for fixing the TF8i and TF9i closers to the surrounding masonry and stainless steel hooks for the SF closer (see Figure 2).

2 Delivery to site and storage 2.1 Dacatie profiles are delivered in bundles of one type. Each bundle carries an instruction leaflet bearing the marketing company’s name and the BBA identification mark incorporating the number of this Certificate. 2.2 Ties and hooks required for use with the Dacatie profiles are delivered in bags with the profiles. 2.3 Packs of Dacatie profiles should be stored flat, away from direct sunlight and excessive heat and supported along their length to prevent distortion.

Readers are advised to check the validity of this Detail Sheet by either referring to the Index of Current BBA Publications or contacting the BBA direct (Telephone Hotline 01923 665400).

Electronic Copy Figure 1

TF8i, TF9i and SF closers

cavity width (mm)

TF8i nibs

nail hole position

TF9i plaster stop

nail hole position

50 50

65 65

75 75

90 90

100

100 100

Figure 2

100

Typical jamb details* TF 8i (flush jamb)

standard window set-forward position

reversed window set-back position

TF 9i (rebated jamb)

SF (flush jamb)

variable window position with plaster stop removed

*Although the jamb details show only timber frames, the products are suitable for timber, PVC-U and metal window and door frames.

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5 Structural stability

Design Data

5.1 The products must not be used to support loads from the masonry. Lintels are required above window or door openings.

3 General 3.1 TF8i is for use in a flush jamb opening with a flange located over both inner and outer leaves. The closer may be used in standard and reversed positions to suit set-forward and set-back window positions (see Figure 2). As an alternative, the plaster stop may be removed at the factory to suit intermediate window positions. For the application of TF8i PSR(1) see Figure 2, but note the restrictions detailed in sections 6 and 7.3.

5.2 The products will not have an adverse effect on the structural stability of brickwork or blockwork walls, constructed in the conventional manner in accordance with normal good practice as defined in BS 5628 : Part 1 : 1992 and BS 5628 : Part 3 : 1985. Use of the products does not obviate the need for conventional wall ties around the openings. 5.3 TF8i/TF9i closers, pre-fixed to frames (see sections 12.9 to 12.11), will satisfactorily transfer back to the structure wind loads incident upon windows and doors and impact loads imposed upon frames (eg door slamming). For the SF closer and TF8i/TF9i closers built into the wall prior to the window or door (see sections 12.1 to 12.8), frames must be fixed independently to the masonry. Procedures and fixings for securing frames to the masonry are outside the scope of this Detail Sheet.

(1) Plaster stop removed.

3.2 TF9i is for use in a checked reveal detail in which the frame is positioned in a jamb rebate behind the outer leaf (see Figure 2). 3.3 The SF closer is intended for use in a flush jamb construction. With the small flange removed at the factory, the SF closer may also be used in a checked reveal application. 3.4 The products provide a damp-proof barrier at the jamb and sill/threshold of window and door openings in masonry constructions where a brick/block closer and dpc detail would normally be used. They also act as cavity closers without forming a thermal bridge, and avoid the need for cutting bricks and blocks.

6 Hygrothermal behaviour With the inner surface of the window/door frame set back at least 15 mm from the inner surface of the outer leaf or positioned against the plaster stop of the TF8i profile, the hygrothermal performance of a detail containing the products will be as follows: (1) According to the methods given in Appendix D of Approved Document L of the Building Regulations 1991 (as amended) (England and Wales), the risk of surface condensation on the reveal will be acceptable and the additional heat flow due to thermal bridging is small enough to be ignored when determining the U value of the wall in the manner described in BRE Information Paper 12/94.

3.5 By virtue of the nibs down the length of the PVC-U flange the products can provide an adequate key for traditional plaster finishes. However, in locations where the plaster may be subject to repeated impact (eg at door reveals from door slamming) it is recommended that wet plaster be reinforced by hessian scrim or, preferably, replaced by dry lining. 3.6 Masonry walls into which the closers are incorporated must be constructed in accordance with one or more of the following technical specifications: (1) BS 5628 : Part 1 : 1992 and BS 5628 : Part 3 : 1985.

(2) The U value of the wall in the region of the product will be less than the maximum stipulated requirement of 1.2 Wmâ&#x20AC;&#x201C;2Kâ&#x20AC;&#x201C;1. (3) Under normal domestic conditions the level of interstitial condensation within the detail will be low and the risk of any resultant damage minimal.

(2) The national Building Regulations: England and Wales Approved Document A1/2, Section 1C.

7 Weather resistance

Scotland Technical Standards, Part C, Small Buildings Guide.

7.1 The products will be effective as a vertical damp-proof barrier at jambs of window and door openings in masonry constructions, where a brick/block closer and dpc detail would normally be used.

Northern Ireland Technical Booklet D.

7.2 The closers will also be effective as a horizontal damp-proof barrier at the sill/threshold.

4 Practicability of installation Installation is straightforward and can be carried out by craftsmen using traditional skills. Lengths of closer can be cut on site using normal hand tools, eg a fine-toothed saw.

7.3 In standard usage, in a flush jamb detail, the TF8i PSR and SF closers are suitable for use in exposure categories up to and including 3

Electronic Copy

sheltered/moderate, as defined in Table 10 of BS 5628 : Part 3 : 1985 and depicted as exposure zones 1 and 2 in the map contained in section 3.1 of BRE Report BR 262 Thermal insulation: avoiding risks 1994. These closers may also be considered suitable for use in other areas where hitherto a conventional return brick/block closer detail with dpc has been found to provide adequate resistance to the penetration of wind driven rain. The standard TF8i closer, with plaster stop, is suitable for use in exposure categories up to and including `severeâ&#x20AC;&#x2122;, and in exposure zones 1, 2 and 3 of the documents referred to above.

Installation 11 General 11.1 The products must be installed in accordance with the manufacturerâ&#x20AC;&#x2122;s instructions. 11.2 The appropriate closer is selected for the job (see sections 3.1, 3.2, 3.3, 7.3 and 7.5). 11.3 Typical installation drawings are shown in Figure 2. 11.4 When installing the SF closer the exposed insulation should always be positioned against the inner leaf (see Figure 2).

7.4 In a checked reveal construction (see Figure 2), the TF9i and modified SF (see section 3.3) closers are suitable for use in exposure categories up to, and including, very severe as defined in Table 10 of BS 5628 : Part 3 : 1985, which covers all exposure zones in the United Kingdom. In this application the rebated frame should be protected from the outer leaf by a dpc (see Figure 2).

11.5 In cutting the products to length, care should be taken to achieve clean, flat, square ends.

12 Procedure Closer built in during construction of wall and prior to installation of window or door. 12.1 The wall is built to one course above sill/threshold level.

7.5 The SF closer is not recommended for use in cavities fully filled with insulation, as the flange nibs cannot be guaranteed to prevent moisture tracking from outer to inner leaf in such applications.

12.2 A section of closer is cut to length and pushed into the sill cavity. 12.3 The jamb closers are cut to length, to oversail the sill closer by 50 mm. The PVC-U flanges are cut away at the base of the closer, which is subsequently pushed into the cavity, propped in a vertical position and butted against the sill closer with the cut flanges seated on the masonry at sill level.

8 Properties in relation to fire 8.1 The installed products will not contribute significantly to the growth of a fire. 8.2 The products have been assessed as suitable for use in walls required to provide a half-hour fire resistance. For use in walls required to provide a longer period of fire resistance, an appropriate test or assessment must be carried out by a United Kingdom Accreditation Service (UKAS) test laboratory accredited for the test concerned.

12.4 As the wall is built up around the jamb closers, ties are located in the TF8i/TF9i channels and hooks pushed into the SF insulation, and one of these fixings embedded in every third mortar course of brickwork and every course of blockwork (see Figure 2).

8.4 The use of the products does not preclude the need to provide suitable fire protection to steel lintels where this is necessary to satisfy the national Building Regulations.

(2) The sill section should be cut to sill length plus twice the rebated length. 12.6 Appropriate insulated lintels and ancillary damp-proof protection are butted onto (but not supported by) the jamb closers at the head, and window/door frames are fixed to the outer leaf with proprietary fixings.

9 Maintenance Checks should be carried out periodically to ensure that a satisfactory weatherproof seal is maintained between frame and masonry.

12.7 A durable weatherproof sealant, for example, a low modulus silicone sealant, is applied over a back-up strip between the frame and outer leaf.

10 Durability The products are durable and, protected within the cavity, will not suffer significant degradation. The products will last the normal expected life of a building.

12.8 Either wet plaster or a dry lining on plaster dabs is applied to the internal reveal. 4

Electronic13.2Copy As part of the assessment leading to the

Closer built in with window or door 12.9 The closers may be incorporated into the wall after pre-fixing to the window or door frame.

Third issue of Certificate No 89/2132, tests were carried out to determine the effects of slamming a door in a built-in frame using the 100 mm TF8i cavity closer.

12.10 The closer lengths are cut as described in sections 12.2, 12.3 and 12.5 and the closer secured to the frame through the PVC-U flange (or body of the closer), using galvanized or non-ferrous clout nails (timber frame), or self-tapping screws (PVC-U or metal frame).

14 Investigations 14.1 Installations in progress were inspected to assess the practicability of installation procedures. 14.2 Factory visits were made to assess manufacture and quality control.

12.11 The frame with closers attached is sat on the sill with the sill closer in the cavity. The masonry is built up around the frame/jamb closer assembly and the installation completed as described in sections 12.4, 12.6, 12.7 and 12.8. Frames installed pre-fixed to TF8i/TF9i closers do not require additional fixing to the masonry (see section 5.3).

14.3 An assessment was made of: durability of the product and the materials used in its construction the weathertightness of installation constructed in accordance with the manufacturer’s instructions and the requirements of this Certificate the fire resistance and structural stability of walls incorporating the products.

Refurbishment 12.12 The closers are suitable for use in refurbishment work. For this application the opening must first be `cleaned’ ready to take the new closer.

14.4 Calculations were carried out and an assessment made of hygrothermal performance.

Bibliography BS 3837 Expanded polystyrene boards Part 1 : 1986(1996) Specification for boards manufactured from expandable beads

12.14 The frame is then fixed to masonry and the installation completed as described in sections 12.4, 12.6, 12.7 and 12.8.

BS 5628 Code of practice for use of masonry Part 1 : 1992 Structural use of unreinforced masonry Part 3 : 1985 Materials and components, design and workmanship

Technical Investigations The following is a summary of the technical investigations carried out on the products.

13 Tests 13.1 Tests were carried out on PVC-U extruded profiles to determine: shrinkage on heating gelation by immersion in acetone.

On behalf of the British Board of Agrément

Date of issue: 20th March 1998

Director

Electronic Copy

British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD2 7NG Fax: 01923 665301

For technical or additional information, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel:

Hotline: 01923 665400

Electronic Copy

CI/SfB (31.9)

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Quantum Profile Systems (formerly Radway Building Products)

DACATIE 2000 INSULATED PVC-U CAVITY CLOSERS

Certificate No 98/3474

DETAIL SHEET 3

Product • THIS DETAIL SHEET RELATES TO THE DACATIE 2000 INSULATED PVC-U CAVITY CLOSERS FOR USE IN MASONRY WALLS WITH CAVITY WIDTHS IN THE RANGE OF 50 mm TO 100 mm. This Detail Sheet must be read in conjunction with the Front Sheets, which give the products’ position regarding the Building Regulations, and the Conditions of Certification, respectively.

Technical Specification 1 Description 1.1 The Dacatie 2000 Insulated PVC-U Cavity Closers are available in 2.1 m, 3.0 m and 3.6 m lengths and in widths to suit 50 mm, 65 mm, 75 mm and 100 mm cavity widths (see Figures 1 and 2). Intermediate sizes are available on request. 1.2 The closers comprise a PVC-U box profile insulated with a closed-cell, CFC-free, expanded polystyrene conforming to BS 3837 : Part 1 : 1986(1996). 1.3 The PVC-U profiles include the following features: flanges that fit over both leaves of masonry flanges with nibs to resist water tracking from outer to inner leaf, and to aid plaster adhesion channels for locating fixing ties

a plaster stop (D2000 only) against which the frame and internal plaster are positioned flanges with nail fixing holes at 150 mm centres nibs on the back, cavity facing, side, to resist water tracking from outer to inner leaf. 1.4 The PVC-U profiles are produced by conventional extrusion techniques(1). Expanded polystyrene boards are cut to size and fitted into them manually, where necessary with the aid of an acrylic sealant or staples. (1) There is one master extrusion from which all profiles are derived by appropriate cutting of flanges.

1.5 Visual and dimensional checks are undertaken regularly during the production of the closers and heat reversion and gelation tests are carried out on the PVC-U extrusions. 1.6 An injection moulded polypropylene tie is available for fixing the closers to the surrounding masonry (see Figure 3).

Readers are advised to check the validity of this Detail Sheet by either referring to the BBA’s website (www.bbacerts.co.uk) or contacting the BBA direct (Telephone Hotline 01923 665400).

Electronic Copy Figure 1

Dacatie D2000 closers for flush jamb

Figure 2

Dacatie CD2000 closers for check reveal

Figure 3

Typical jamb details

2 Delivery to site and storage

ElectronicEngland Copy and Wales Approved Document A1/2, Section 1C

2.1 Dacatie profiles are delivered in bundles of one type. Each bundle carries an instruction leaflet bearing the marketing companyâ&#x20AC;&#x2122;s name and the BBA identification mark incorporating the number of this Certificate.

Scotland Technical Standards, Part C, Small Buildings Guide Northern Ireland Technical Booklet D.

2.2 Ties required for use with the profiles are delivered in bags with the profiles.

4 Practicability of installation

2.3 Packs of profiles should be stored flat, away from direct sunlight and excessive heat and supported along their length to prevent distortion.

Installation is straightforward and can be carried out by craftsmen using traditional skills. Lengths of closer can be cut on site using normal hand tools, eg a fine-toothed saw.

Design Data

5 Structural stability 5.1 The products must not be used to support loads from the masonry. Lintels are required above window or door openings.

3 General 3.1 D2000 closers are for use in a flush jamb opening with a flange located over both inner and outer leaves. The closer may be used in standard and reversed positions to suit set-forward and setback window positions (see Figure 2). As an alternative, the plaster stop may be removed at the factory to suit intermediate window positions. For this application, however, note the restrictions detailed in sections 6 and 7.3. For the 65 mm, 75 mm and 100 mm D2000 closers the insulation outside the box may be positioned in two parts, either side of the box, to suit different window positions (see Figure 2). To support the insulation in this alternative position, the flanges of the master extrusion are cut accordingly (see section 1.4).

3.2 CD2000 closers are for use in a check reveal detail in which the frame is positioned in a jamb rebate behind the outer leaf (see Figure 2).

6 Hygrothermal behaviour 6.1 Providing the closer and window or door frame are installed in accordance with section 17, with the window or door frame set back at least 14 mm from the inner surface of the outer leaf or positioned against the plaster stop of the profile, the thermal bridging, which occurs at reveal details containing the product, and the associated risk of local surface condensation will be acceptable, according to the methods given in the national Building Regulations: England and Wales Appendix D of Approved Document L, Conservation of fuel and power, 1995

3.3 The products provide a damp-proof barrier at the jamb and sill/threshold of window and door openings in masonry constructions where a brick/block closer and dpc detail would normally be used. They also act as cavity closers without forming a thermal bridge, and avoid the need for cutting bricks and blocks. 3.4 By virtue of the nibs down the length of the PVC-U flange the products can provide an adequate key for traditional plaster finishes. However, in locations where the plaster may be subject to repeated impact (eg at door reveals from door slamming) it is recommended that wet plaster be reinforced by hessian scrim or, preferably, replaced by dry lining.

Scotland Appendix B of Part J of the Technical Standards for compliance with the Building Standards, 1999 Northern Ireland Appendix D of Technical Booklet F, Conservation of fuel and power, 1998.

3.5 Masonry walls into which the closers are incorporated must be constructed in accordance with one or more of the following technical specifications: (1) BS 5628 : Part 1 : 1992 and BS 5628 : Part 3 : 1985 (2) The national Building Regulations:

6.2 Under normal domestic conditions the level of interstitial condensation associated with the product will be low and the risk of any resultant damage minimal. 3

7 Weather resistance

Electronic Copy

8 Properties in relation to fire

7.1 The products will be effective as a vertical damp-proof barrier at jambs of window and door openings in masonry constructions, where a brick/block closer and dpc detail would normally be used.

8.1 The installed products will not contribute significantly to the growth of a fire. 8.2 The products have been assessed as suitable for use in walls required to provide a half-hour fire resistance. For use in walls required to provide a longer period of fire resistance, an appropriate test or assessment must be carried out by a United Kingdom Accreditation Service (UKAS) test laboratory accredited for the test concerned.

7.2 The closers will also be effective as a horizontal damp-proof barrier at the sill/threshold. 7.3 In standard usage, in a flush jamb detail with the window positioned against the closer stop, the D2000 closers are suitable for use in exposure categories up to and including ‘severe’, as defined in Table 10 of BS 5628 : Part 3 : 1985 and depicted as exposure zones 1, 2 and 3 in the map contained in section 3.1 of BRE Report BR 262 Thermal insulation: avoiding risks 1994. With the plaster stop removed, the D2000 closers are suitable for use in exposure categories up to and including ‘sheltered/moderate’, and in exposure zones 1 and 2 of the documents referred to above. In this modified form, closers may also be considered suitable for use in other areas where hitherto a conventional return brick/block closer detail with dpc has been found to provide adequate resistance to the penetration of wind driven rain.

8.3 The products do not constitute a cavity barrier against the penetration of smoke and flame in the context of the building regulations. Suitable fire stops must be provided, as necessary, in the cavity behind the closer. 8.4 The use of the products does not preclude the need to provide suitable fire protection to steel lintels where this is necessary to satisfy the national Building Regulations.

9 Maintenance Checks should be carried out periodically to ensure that a satisfactory weatherproof seal is maintained between frame and masonry.

7.4 In a check reveal construction (see Figure 2), the CD2000 closers are suitable for use in exposure categories up to and including ‘very severe’ as defined in Table 10 of BS 5628 : Part 3 : 1985, which covers all exposure zones in the United Kingdom. In this application the rebated frame should be protected from the outer leaf by a dpc (see Figure 2).

10 Durability The products are durable and, protected within the cavity, will not suffer significant degradation. The products will last the normal expected life of a building.

Installation

Electronic12.6Copy Appropriate insulated lintels and ancillary damp-proof protection are butted onto, but not supported by, the jamb closers at the head, and window/door frames are fixed to the outer leaf with proprietary fixings, which are outside the scope of this Certificate.

11 General 11.1 The products must be installed in accordance with the manufacturerâ&#x20AC;&#x2122;s instructions.

12.7 A durable weatherproof sealant, for example, a low modulus silicone sealant, is applied over a back-up strip between the frame and outer leaf.

11.2 The appropriate closer is selected for the job (see sections 3.1, 3.2 and 7.3). 11.3 Typical installation drawings are shown in Figure 2.

12.8 Either wet plaster or a dry lining on plaster dabs is applied to the internal reveal.

11.4 In cutting the products to length, care should be taken to achieve clean, flat, square ends.

Closer built in with window or door 12.9 The closers may be incorporated into the wall after pre-fixing to timber window or door frames.

12 Procedure Closer built in during construction of wall and prior to installation of window or door. 12.1 The wall is built to one course above sill/ threshold level.

12.2 A section of closer is cut to length and pushed into the sill cavity.

12.11 The frame with closers attached is sat on the sill with the sill closer in the cavity. The masonry is built up around the frame/jamb closer assembly and the installation completed as described in sections 12.4, 12.6, 12.7 and 12.8. Frames installed pre-fixed to closers do not require additional fixing to the masonry (see section 5.3).

12.3 The jamb closers are cut to length, to oversail the sill closer by 50 mm. The PVC-U flanges are cut away at the base of the closer, which is subsequently pushed into the cavity, propped in a vertical position and butted against the sill closer with the cut flanges seated on the masonry at sill level. 12.4 As the wall is built up around the jamb closers, ties are located in the profile channels, and one of these fixings embedded in every third mortar course of brickwork and every course of blockwork (see Figure 2).

Refurbishment 12.12 The closers are suitable for use in refurbishment work. For this application the opening must first be `cleanedâ&#x20AC;&#x2122; ready to take the new closer.

12.5 The procedures for flush and rebated jambs are essentially the same, as described in sections 12.1 to 12.4. However, for the rebated jambs application the following should be noted: (1) There is no flange at the base of the outer PVC-U jamb section to be removed. (2) The sill section should be cut to sill length plus twice the rebated length and the outer flange removed at each rebate.

12.13 The closer lengths are cut as described in sections 12.2, 12.3 and 12.5, inserted into the cavity (jamb sections before sill) and secured (jamb section only) to the masonry through the flange using galvanized or non-ferrous clout nails. 12.14 The frame is then fixed to masonry and the installation completed as described in sections 12.7 and 12.8.

Electronic Copy Technical Investigations

Bibliography

The following is a summary of the technical investigations carried out on the products.

13 Tests Tests were carried out on PVC-U extruded profiles to determine: shrinkage on heating gelation by heat ageing.

BS 3837 Expanded polystyrene boards Part 1 : 1986(1996) Specification for boards manufactured from expandable beads BS 5628 Code of practice for use of masonry Part 1 : 1992 Structural use of unreinforced masonry Part 3 : 1985 Materials and components, design and workmanship

14 Investigations 14.1 An assessment was made of: durability of the product and the materials used in its construction manufacture and quality control practicability of installation the weathertightness of installation constructed in accordance with the manufacturer’s instructions and the requirements of this Certificate the fire resistance and structural stability of walls incorporating the products. 14.2 Calculations were carried out and an assessment made of hygrothermal performance.

On behalf of the British Board of Agrément

Date of issue: 15 February 2000

British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: 01923 665301

Chief Executive

For technical or additional information, tel: 01923 665300. For information about Agrément Certificate validity and scope, tel:

Hotline: 01923 665400