Exam 16: Insulation and Ventilation

____ foams have the best R-value per inch.

Air leakage is the major cause of moisture getting into the insulation layer.

A popular type of vapor retarder is ____, a transparent plastic sheet available in rolls.

The type of insulation that requires a 3 / 4 inch space between other materials and itself is _____.

The best way to vent an attic is with __________.

Air-insulation dams are installed to protect the insulation from ____.

The largest percentage of heat loss for a typical house with moderate insulation comes __________.

Water vapor tends to condense onto warmer surfaces.