Home Inspector Test Home Inspector Insulation and Ventilation 3

Question 1

Which ventilation system type uses a single fan to both exhaust stale air and supply fresh air, balancing pressures in the home?

Accepted Answer

Balanced ventilation (HRV/ERV)

Answer

Exhaust-only ventilation

Answer

Supply-only ventilation

Answer

Natural ventilation

Question 2

A home inspector finds insulation installed in a crawl space with the vapor barrier facing down toward the ground. What should be noted?

Accepted Answer

The vapor barrier should face upward toward the conditioned space

Answer

This is acceptable installation

Answer

Vapor barriers are not needed in crawl spaces

Answer

The insulation R-value is the only concern

Question 3

What does an inspector look for when evaluating recessed light fixtures in an insulated ceiling?

Accepted Answer

Whether they are rated IC (insulation contact) or non-IC

Answer

Bulb wattage compliance

Answer

The brand and age of the fixture

Answer

Trim style and finish

Question 4

What is a 'hot roof' or unvented roof assembly?

Accepted Answer

A roof assembly where insulation fills the entire rafter bay with no ventilation gap

Answer

A roof with dark-colored shingles that absorbs more heat

Answer

A metal roof in direct sunlight

Answer

A roof without ice-and-water shield

Question 5

Which of the following is the BEST evidence that a crawl space ground cover vapor barrier is functioning properly?

Accepted Answer

The barrier covers at least 6 inches up the walls and is continuous with no gaps

Answer

The barrier is white in color

Answer

The barrier is stapled to the joists above

Answer

The barrier is 4 mil polyethylene

Question 6

Why is spray foam insulation sometimes flagged as a concern in attics even when properly installed?

Accepted Answer

It can conceal the roof sheathing, preventing visual inspection of moisture damage or rot

Answer

It reduces attic storage space

Answer

It always voids roof warranties

Answer

It reduces the R-value of the assembly over time