Strategies for air sealing

Air sealing at the top and bottom of the building is the first priority because of

• Air sealing at the top and bottom of the building is the first priority because of

• the stack effect

• the windwash effect

• the need to conserve energy

Air sealing work should be guided by the use of a:

• blower door

• infrared camera

• bright light

• box fan

A bypass is a:

• small gap between two framing members

• an air pathway between two or more areas located inside the envelope

• door that swings in both directions

• result of the stack effect

Walls that are enclosed on both sides and void of insulation can be air sealed:

• without the use of a blower door

• by applying at least a 10 mil coat of latex paint

• using the dense pack method

• all of the above

Wind moving through insulation causes:

• increased insulation effectiveness

• windwash

• condensation between the insulation and the vapor retarder

• lower summer costs

When sealing around a chimney or flue pipe, a _____________ must be installed to maintain a minimum 1” clearance between the insulation and the chimney.

• high temp silicone sealant

• insulation baffle

• flue liner

• insulation dam

Band joists can be insulated and air sealed in one step using __________________.

• caulk and mastic

• sheet foam

• a vapor retarder

• two-part spray foam

The most practical method for sealing around electrical boxes in new and existing construction is:

• installing foam gaskets behind wall plates

• installing air-tight electrical boxes

• sealing all holes and gaps around boxes with caulk

• all of the above

Air sealing reduces __________________ from air movement and prevents water vapor from entering the wall.

• energy consumption

• strain on heating and cooling systems

• heat flow

• all of the above

The majority of wall surfaces are air sealed using:

• vapor retarders

• common building materials such as siding and drywall

• blower door-guided air sealing

• caulk and spray foam