GAF Ventilation & Attic Systems 2

Question 1

What is the primary purpose of attic ventilation in hot climates during summer months?

Accepted Answer

Reducing attic heat to lower cooling costs and extend shingle life

Answer

In summer, proper ventilation exhausts superheated attic air, reducing cooling loads on HVAC systems and preventing premature shingle degradation from excessive heat.

Question 2

Which GAF product line provides low-profile external baffles that protect against wind-driven rain while allowing air to pass through the ridge?

Accepted Answer

Cobra® Snow Country Advanced

Answer

GAF Cobra® Snow Country Advanced ridge vents feature external baffles designed to block wind-driven rain and snow infiltration while maintaining airflow.

Question 3

When attic insulation is installed, what must be maintained between the insulation and the roof deck to ensure proper ventilation?

Accepted Answer

A minimum 2-inch clear airway channel

Answer

A minimum 2-inch clear airway channel must be maintained between the top of the attic insulation and the underside of the roof deck so air can flow from soffit to ridge.

Question 4

What component is used at the eaves to keep insulation from blocking soffit vents and to direct airflow up toward the ridge?

Accepted Answer

Rafter baffles (vent chutes)

Answer

Rafter baffles (also called vent chutes or insulation baffles) are installed between rafters at the eaves to maintain the airway above the insulation and direct air up the rafter bay.

Question 5

A homeowner reports that their attic smells musty and the roof deck shows signs of moisture staining. What is the most likely ventilation-related cause?

Accepted Answer

Blocked or insufficient intake vents preventing moisture-laden air from escaping

Answer

Blocked or undersized intake vents prevent the balanced airflow needed to flush moisture from the attic, leading to condensation, mold, and wood rot.

(GAF) GAF Certified Roofing Contractors Practice Test

(GAF) GAF Certified Roofing Contractors Practice Test

GAF Ventilation & Attic Systems 2