Search results

Hello Deluks, walls have a U-value to meet regulations in 1993 when it was built. Since I have a 50mm air gap I thought that it would improve the u-value significantly if I also had the cavity filled with blow insulation. What problems do you think there would be?

Hi there, Does anyone know if there would be any problems in having blown cavity wall insulation in a cavity where there is already 'polystyrene' type insulaton against 100mm blockwork? I think the free cavity space is 50mm.