Hi,
I had cavity wall insulation installed by British Gas in May 2015 (the type they blow into the wall) however now I need to know what material they used so that I can check compliance with building regs. I am having some more work done and building control want me to install external insulation which might be avoided if I can prove the cavity insulation meets 0.55/w/m2/degree K. British Gas insulation can't be contacted anymore since they no longer offer that service. Does anyone know what product they used typically around then or a route to the information for my particular installation.
Thanks
I had cavity wall insulation installed by British Gas in May 2015 (the type they blow into the wall) however now I need to know what material they used so that I can check compliance with building regs. I am having some more work done and building control want me to install external insulation which might be avoided if I can prove the cavity insulation meets 0.55/w/m2/degree K. British Gas insulation can't be contacted anymore since they no longer offer that service. Does anyone know what product they used typically around then or a route to the information for my particular installation.
Thanks