Crawl Space Issues Quiz

Question 1 of 11

1. Question

Where do you insulate if the crawl space is naturally ventilated?

In the main floor cavity.
On the inside of the foundation wall.
On the outside of the foundation wall.
On the floor of the crawl space.

Question 2 of 11

2. Question

What is the best place to install insulation in a sealed crawl space?

On the exterior of the foundation wall.
On the interior of the foundation wall.
In the floor cavity above the crawl space.
On the ground of the crawl space.

Question 3 of 11

3. Question

What type of foundation insulation would be best for a termite-infested region?

Fiberglass or rock wool boards.
Polyisocyanurate foam.
Polystyrene foam.
Spray polyurethane foam.

Question 4 of 11

4. Question

Which of the following isn’t a ventilation option for sealed crawl spaces?

Natural ventilation through foundation vents.
Conditioning the crawl space air.
Installing a continuously operating exhaust fan.
Providing a supply register in the crawl space.

Question 5 of 11

5. Question

Which of the following is essential for all crawl spaces?

A ground moisture barrier (GMB).
A dehumidifier.
An exhaust fan.
A sump pump.

Question 6 of 11

6. Question

How would you describe a crawl space that has insulation on the foundation walls?

A sealed crawl space.
A naturally ventilated crawl space.
A non-conforming crawl space.
An occupied crawl space.

Question 7 of 11

7. Question

How much airflow from an exhaust fan or supply register does a sealed crawl space need to meet code?

1 CFM per 50 square feet of crawl space area.
1 CFM per 500 square feet of crawl space area.
1 CFM per 5 square feet of crawl space area.
1 CFM per 200 square feet of crawl space area.

Question 8 of 11

8. Question

What type of control does a crawl space exhaust fan use, according to the building code?

Continuous operation.
Manual control.
Dehumidistat control.
Time-based control.

Question 9 of 11

9. Question

If the crawl space has a ground moisture barrier, the code requires one square foot of net vent area for how many square feet of crawl space area?

1500.0
150.0
300.0
500.0

Question 10 of 11

10. Question

What are the two main products of complete combustion?

Carbon dioxide and water vapor.
Carbon dioxide and carbon monoxide.
Carbon monoxide and water vapor.
Carbon and oxygen.

Question 11 of 11

11. Question

How would you describe a crawlspace’s location if it had eight louvered crawlspace vents?

Outside of the thermal boundary
Outside of the air barrier
Connected to the outdoors
All of these describe the crawlspace’s location