How much will roof insulation and polyurethane foam save on my heating bills?
It all depends but you can expect to save about 75% of the heat that would otherwise escape from the roof which might translate to a 10 to 40% saving on your heating bills. You will notice a big difference to the comfort of your home in winter due to the excellent roof insulation. Roof insulation has a payback typically between 3 to 10 years depending on the current thermal efficiency of your home. With the new energy rating system about to be introduced with the Home Information Packs foam insulation will help move your property up towards the A category.