Air-Insulation Dams Are Installed to Protect the Insulation from ____

Q18: Liquid water can enter a building at

Q19: A(n) _-value indicates a material's ability to

Q20: If insulation looks neat, tight, and full,

Q21: _ foams have the best R-value per

Q22: Air leakage is the major cause of

Q23: A popular type of vapor retarder is

Q24: The type of insulation that requires a

Q25: The best way to vent an attic

Q27: The largest percentage of heat loss for

Q28: Water vapor tends to condense onto warmer