Choosing the right type of insulation can make a huge difference in energy efficiency and comfort for any type of building. Given the myriad of options available, an informed choice leads to long-term ...

Materials aren’t the only driver of price, since local building code requirements for insulation R-values differ between attics and walls. Attics (R-30 to R-60) often need greater thermal ...

Cavity wall insulation The gap between two brick walls is filled with material that has a lower thermal conductivity than air. This is because it contains trapped air which cannot transfer energy ...