Residential Spray Foam Insulation

Insulation R Value + Air Seal
When measuring the effectiveness of insulation, the R-value is the only factor most insulation manufacturers talk about because it’s all they offer. R-value measures the ability to limit conductive heat flow (heat transferred through it). However, the primary method of heat transfer is not conductive heat flow; it is air leakage (convection). Air leakage can account for up to 40% of a building’s energy loss, and it cannot be stopped with traditional insulation. R-value is important, but an airtight seal is equally important for achieving energy savings.