Internal wall insulation

Insulation is a key component of the retrofits. Many of the households are having a mix of internal and external wall insulation. Internal wall insulation is often used where the external appearance is to be retained (for example, to the front of the property). Although some systems can be fitted over existing plaster wall surfaces, sometimes the wall requires stipping back to the brickwork.

The systems used on the Carbon Co-op households were either vapour permeable glass fibre or wood fibre.

Timber skirtings and mouldings need to be removed from the wall and wallpaper will be stripped - this does cause some mess and dust in the room being insulated. The image below shows the 'intelligent' vapour control layer applied to the top of the insulation, fixed with air-tightness tape.