GAF Roof System Design & Inspection 2

Question 1

What is the primary purpose of a drip edge on a roof system?

Accepted Answer

To direct water away from the fascia into the gutter

Answer

Drip edge directs water runoff away from the fascia board and into the gutter, preventing water damage to the underlying structure.

Question 2

When inspecting a roof for hail damage, which characteristic distinguishes functional damage from cosmetic damage on asphalt shingles?

Accepted Answer

Loss of granules exposing the mat or fiberglass substrate

Answer

Functional hail damage occurs when granule loss exposes the underlying mat or fiberglass, compromising the shingle's ability to protect the roof.

Question 3

What is the minimum recommended slope for standard three-tab asphalt shingles per most manufacturer guidelines?

Accepted Answer

2:12

Answer

Standard asphalt shingles typically require a minimum slope of 2:12 (2 inches of rise per 12 inches of run) for proper water drainage.

Question 4

In GAF's roofing system, what is the function of the starter strip at the eaves?

Accepted Answer

To seal the tabs of the first course of shingles and prevent wind uplift

Answer

The starter strip seals the tab cutouts of the first shingle course, preventing wind-driven rain from entering beneath the shingles and providing uplift resistance.

Question 5

Which type of valley flashing method involves shingles from both roof planes being woven together at the valley?

Accepted Answer

Woven valley

Answer

A woven valley interweaves shingles from both roof planes, creating a continuous surface without exposed flashing metal.

(GAF) GAF Certified Roofing Contractors Practice Test

(GAF) GAF Certified Roofing Contractors Practice Test

GAF Roof System Design & Inspection 2