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Internal Wall Insulation Your homeowner guide

If you move house, please leave this document for future homeowners.

Looking after your new internal wall insulation lining system Taking care of your new internal wall insulation couldn’t be easier. Once upgraded, there’s no ongoing maintenance or servicing to worry about. Additional work to your home The insulation is designed to maximise performance in your home and it is important to be aware of what can affect it. Any work that penetrates or requires holes being drilled into it may weaken its overall effectiveness. If you’re undertaking further work like pipework, cabling, ducting or cavity fixings, we advise you to keep holes as small as possible. Any gaps that are around the hole should be sealed with Gyproc Sealant.

Decorating your home When you decorate your home you may notice fine line cracks on the window and doorway reveals. These are perfectly natural and are just the result of different materials used to build your home. Seal any cracks with Gyproc Sealant around windows and doorways before you start any decoration. Shelves or cupboards that need to be taken down will leave holes. Fill any holes with Gyproc Easifill and sand to a smooth finish. Or, for larger holes use Gyproc paper tape over the hole and finish with a number of coats of Gyproc Easifill to prevent any cracking. If you’re upgrading your skirting boards, it’s important to seal the wall and the floor junction to prevent future heat loss through air leakage.

Fixing items to your new wall lining system Hanging pictures, mirrors, putting up shelves and cupboards can be many people’s idea of a DIY nightmare. And, when you’ve just invested in internal wall insulation, it’s even more important to get it right first time. Choosing the right fixings There’s a wide variety of fixings available for internal wall lining systems. The best choice will depend on the weight and size of the item that needs to be fixed. Ideally, position any fixings into the masonry background or studwork, normally spaced at 400mm or 600mm intervals. Check the installer diagrams at the back of this brochure for guidance. If you have to locate a fixing away from these positions, please take extra care, especially with heavier items.

Example fixings for internal wall systems Steel expanding fixing, e.g. HM6x52 can be used for medium weight fixtures, typically up to 15kg in weight. Steel expanding fixing, e.g. HM8x55 can be used for medium weight fixtures, typically up to 17kg in weight. PD10 plastic cavity fixing, can be used for lightweight to medium weight fixtures, typically up to 6kg in weight.

If you’re unsure about what to use, ask your local DIY store or a qualified trades person for more help.

Getting the most out of your new insulation Take extra steps to maximise the performance of your internal wall lining system. When you combine these with our “every day” energy saving tips, you’ll see real long-term benefits and further reductions to your energy bills: – If you’re using electricity to heat your home, change to gas, if possible, it can be more economical

– R  educe heat loss by draught proofing your windows, doors and loft hatches – R  educe condensation issues by mechanically ventilating bathrooms. Remember, it’s important not to cover any air vents. If you are considering covering them, check with a qualified trades person first to ensure you won’t affect the ventilation

Lower your bills further with our energy saving tips By making a few simple changes every day in the home, you can save even more money. Here are a few suggestions to try: – Is  your water too hot? Your cylinder thermostat should be set at 60°C/140°F – T  urn your thermostat down by 1°C and you could save around £75 per year – T  urn appliances off standby and never leave laptops and mobile phones on charge unnecessarily – T  urn off the lights when you leave a room – U  se energy saving lightbulbs. One bulb can save you around £45 over its lifetime – In a week a dripping hot water tap wastes enough water to fill half a bath. Fix leaking taps and ensure they’re fully turned off – Only boil as much water as you need – O  nly use full loads in washing machines, dryers and dishwashers

– C  lose your curtains at dusk to reduce heat loss through windows - check for draughts around windows and doors to see if draught proofing is needed Looking for more options? Go to and take a home energy check

British Gypsum system installation This section is to record details of the British Gypsum IWI* system installed into this property. The approved installer should complete this section to include all rooms in which Britsh Gypsum IWI* has been installed.

*Internal Wall Insulation

Installer name Company name Installer reference number

Installation date

Property address Postcode System installed

DriLyner RF

DriLyner TL


mm intervals GypLyner IWL


Board thickness


Board type



Additional patrassing installed above windows (for GypLyner UNIVERSAL and GypLyner IWL)


mm intervals

(please circle)


(please tick)

Special instructions

Instructions to installer For each room: – Mark out the walls that have been insulated as shown below – Indicate the position of the GypLyner UNIVERSAL, GypLyner IWL studs on all insulated walls with a 7

living room/GypLyner lWL

Room (Please specify)

Room (Please specify)

Room (Please specify)

Room (Please specify)

Room (Please specify)

Room (Please specify)

Technical enquiries British Gypsum Technical Advice Centre East Leake Loughborough Leicestershire LE12 6HX

Telephone: 0115 945 6123 Fax: 0115 945 1616 Training enquiries: 0844 561 8810

“Gyproc”, “Thistle”, “Gypframe” and “Glasroc” are all registered trademarks of Saint-Gobain Construction Products UK Limited. “Isover” is a registered trademark of Saint-Gobain Isover and “Artex” is a registered trademark of Saint-Gobain Construction Products UK Limited. Saint-Gobain Construction Products UK Limited is a limited company registered in England under company number 734396, having its registered office at Saint-Gobain House, Binley Business Park, Coventry, CV3 2TT, UK. Saint-Gobain Construction Products UK Limited trades as British Gypsum for part of its business activities. British Gypsum reserves the right to revise product specification without notice. The information herein should not be read in isolation as it is meant only as guidance for the user, who should always ensure that they are fully conversant with the products and systems being used and their subsequent installation prior to the commencement of work. For a comprehensive and up-to-date library of information visit the British Gypsum website at: For information about products supplied by Artex Limited, Celotex or Saint-Gobain Isover please see their respective websites. “British Gypsum” is a registered trademark of Saint-Gobain Construction Products UK Limited.

March 2018

BG-HGIWI-02 British Gypsum Head Office, East Leake, Loughborough, Leicestershire, LE12 6HX T: 0115 945 1000


O'Connell's Internal Wall Insulation Guide  

A short guide about Internal Wall Insulation in conjunction with British Gypsum and O'Connell's Drywall Contractors.

O'Connell's Internal Wall Insulation Guide  

A short guide about Internal Wall Insulation in conjunction with British Gypsum and O'Connell's Drywall Contractors.