NHIE Roofing 2

Question 1

What is the minimum recommended overlap for asphalt shingles at the rake edge?

Accepted Answer

1/4 inch

Answer

Asphalt shingles should overhang the rake edge by 1/4 to 3/8 inch to allow proper water runoff.

Question 2

Which roofing condition is most likely to cause ice dams to form?

Accepted Answer

Inadequate attic ventilation and insulation

Answer

Poor attic insulation and ventilation allow heat to escape, melting snow that refreezes at the cold eave overhang, forming ice dams.

Question 3

A home inspector observes exposed nail heads on a metal roof panel seam. This is best described as:

Accepted Answer

Improper installation that can cause leaks

Answer

Exposed fasteners on metal roofing are a deficiency because the nail holes can allow water infiltration as sealant degrades.

Question 4

What does a 4/12 roof pitch mean?

Accepted Answer

The roof rises 4 inches for every 12 inches of horizontal run

Answer

Roof pitch is expressed as rise over run; 4/12 means 4 inches of vertical rise per 12 inches of horizontal run.

Question 5

Which type of valley flashing method weaves shingles from both roof planes together without metal flashing?

Accepted Answer

Woven valley

Answer

A woven valley interlaces shingles from each roof plane alternately, eliminating the need for metal valley flashing.

(NHIE) National Home Inspector Examination Practice Test