DIY Home Repair Forum: Insulation and Radiant Barriers
06-17-2010, 12:04 PM
R25 Spray Insulation vs R40 Spray Insulation
Is there really a noticeable difference?
Just bought a new home and the builder is charging an upgrade to go from R25 to R40 spray insulation in the garage.
It'll be my son's room (above the...