CHAPTER 3 - Air Barrier Overview

When air barrier materials are incorporated into air barrier assemblies that are then interconnected to create enclosures, this creates a(n) ____________.

• thermal break

• air barrier system

• negative air pressure

• expansion joint

The position of the air barrier in a building is known as the pressure boundary location.

• TRUE

• FALSE

One of the factors used to properly size heating and cooling equipment is the tightness of the building envelope.

• FALSE

• TRUE

Which of the following is conditioned air that is able to pass through or around insulation into an unconditioned area, lowering the energy efficiency of a building?

• 
  stack effect

• channel airflow

• diffuse airflow

• thermal bypass

A heating or cooling sink occurs when hot or cold air is dissipated into the surrounding air.

• TRUE

• FALSE

Building envelope _____________ refers to the ability of a building and its components to perform their required functions over an intended period of time.

• durability

• solidity

• integrity

• perspicacity

An effective air barrier prevents conditioned air from escaping the building; it will not prevent pollutants, such as odors, dangerous gasses, and fumes, from entering the building.

• TRUE

• FASLE

• FALSE

• TWUE

A(n) ___________ door is a diagnostic tool designed to measure how much air is leaking through the building envelope.

• sliding

• pressurized

• hollow metal

• blower

An indirect opening is a gap in the air barrier that leads directly through the barrier, from one side to the other.

• stack effect

• channel airflow

• diffuse airflow

• thermal bypass

In which of the following does air pass through an opening or leakage path on one side of a wall or roof to an opening on the other side?

• stack effect

• channel airflow

• diffuse airflow

• thermal bypass