How To
If the winters are hard where you live, try to have an R-value (thermal res
If the winters are hard where you live, try to have an R-value (thermal resistance) of at least R-33 in ceiling insulation and R-19 in wall insulation.
By Yankee Magazine
Mar 24 2013
If the winters are hard where you live, try to have an R-value (thermal resistance) of at least R-33 in ceiling insulation and R-19 in wall insulation.