NHIE Roofing 3

Question 1

A home inspector finds granule loss concentrated in streaks running down asphalt shingles. The most likely cause is:

Accepted Answer

Foot traffic damage from prior roof work

Answer

Streaking granule loss typically follows foot traffic patterns where installers or maintenance workers have walked on the roof, abrading the granule surface.

Question 2

What is the minimum slope generally required for standard 3-tab asphalt shingles without special low-slope installation procedures?

Accepted Answer

3:12

Answer

Most manufacturers require at least a 3:12 slope for standard asphalt shingle installation; slopes below this need special underlayment and double-coverage methods.

Question 3

Which underlayment material provides the best water-resistant barrier under slate or tile roofing?

Accepted Answer

Self-adhering modified bitumen membrane

Answer

Self-adhering modified bitumen (peel-and-stick) membranes provide a superior secondary waterproof barrier appropriate under heavy roofing materials with long service lives.

Question 4

Step flashing is used where:

Accepted Answer

A sloped roof meets a vertical wall

Answer

Step flashing consists of individual L-shaped metal pieces installed one per shingle course where a sloped roof intersects a vertical wall.

Question 5

During a roof inspection, the inspector notes the wood decking feels spongy underfoot near the eaves. This most likely indicates:

Accepted Answer

Rot from chronic moisture intrusion or ice damming

Answer

Spongy decking near eaves strongly suggests wood rot caused by repeated wetting from ice dams, inadequate ventilation, or long-term leak infiltration.

(NHIE) National Home Inspector Examination Practice Test

(NHIE) National Home Inspector Examination Practice Test

NHIE Roofing 3