Cavity wall solution
Isover’s CWS is our leading solution for cavity wall insulation. It is available with a variety of thermal resistance values to help meet or exceed your particular U Value requirements, whether you are building to Part L standards or beyond, as well as providing a level of acoustic performance that many of our competitors simply cannot match.
Some sample U Values using the CWS range are shown in the table below.
|Insulation||Thickness||Block type||U Value*||PIR|
|CWS 32||100mm||Dense||0.27||PIR 0.022 @ 50mm|
|CWS 34||100mm||Aircrete||0.24||PIR 0.021 @ 50mm|
|CWS 32||100mm||Aircrete||0.23||PIR 0.022 @ 75mm|
|CWS 34||125mm||Aircrete||0.21||PIR 0.021 @ 75mm|
|CWS 34||150mm||Lightweight||0.19||PIR 0.021 @ 85mm|
|CWS 32||150mm||Aircrete||0.17||PIR 0.021 @ 85mm|
Isover’s TF insulation products are designed for use in timber external wall applications and are available with a variety of thermal resistance values to help meet or exceed your particular U Value requirements, whether you are building to Part L standards or beyond, as well as providing that all-important acoustic performance that only comes from mineral wool.
Some sample U Values using the TF range are shown in the table below.
|TF 35||140mm||0.24||PIR 0.021 @ 100mm|
|TF 32||140mm||0.22||PIR 0.022 @ 120mm|
Room In The Roof
Isover’s TF products are also essential for use in habitable roof spaces, for both thermal and acoustic comfort.
Some sample U Values for warm roof applications are shown in the table below.
|Insulation between rafters||Internal Lining||Rafter Depth||U Value***||PIR|
|180mm TF 32 (2x90mm)||12.5mm Wallboard||197mm||0.2||PIR 0.022 @ 130mm|
|140mm TF 32||50mm TF 32 (50mm battened void)||147mm||0.19||PIR 0.022 @ 140mm|
|200mm TF 35 (2x100mm)||12.5mm Wallboard||220mm||0.19||PIR 0.022 @ 140mm|
|180mm TF 32 (2x90mm)||50mm TF 32 (50mm battened void)||197mm||0.16||PIR 0.022 @ 200mm|
|200mm TF 35 (2x100mm)||50mm TF 32 (50mm battened void)||220mm||0.15||PIR 0.022 @ 200mm|
Give Isover a shout!
For further advice on choosing the right insulation, just get in touch. Call us on 0800 032 2555 or contact us via the Contact Isover page.