Other Skilled Trades Roofing 1

Question 1

What is the minimum recommended slope for asphalt shingles according to most building codes?

Accepted Answer

2:12

Answer

Most building codes require a minimum slope of 2:12 (2 inches of rise per 12 inches of run) for standard asphalt shingle installation.

Question 2

What material is most commonly used as an underlayment beneath asphalt shingles?

Accepted Answer

Tar paper (15 lb felt)

Answer

15 lb roofing felt (tar paper) is the standard underlayment used beneath asphalt shingles to provide a secondary moisture barrier.

Question 3

A 'square' of roofing material covers how many square feet?

Accepted Answer

100 sq ft

Answer

One roofing square equals 100 square feet; it is the standard unit used to estimate and purchase roofing materials.

Question 4

What is the purpose of flashing in a roofing system?

Accepted Answer

To prevent water infiltration at joints and transitions

Answer

Flashing is metal (usually galvanized steel or aluminum) installed at roof transitions, valleys, and penetrations to redirect water away from vulnerable joints.

Question 5

Which type of roof valley method weaves shingles from both roof planes together across the valley?

Accepted Answer

Woven valley

Answer

In a woven valley, shingles from alternating roof planes are layered over each other, creating an interwoven pattern for a seamless appearance.

Other Skilled Trades Practice Test

Other Skilled Trades Practice Test

Other Skilled Trades Roofing 1