Roof Sailing Knowledge 2

Question 1

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

Accepted Answer

To direct water away from the fascia and into the gutter

Answer

A drip edge directs water runoff away from the fascia board and into the gutter, preventing moisture damage.

Question 2

Which underlayment is best suited for use under metal roofing in hot climates?

Accepted Answer

High-temperature synthetic underlayment

Answer

High-temperature synthetic underlayments are engineered to withstand the heat buildup that occurs under metal roofing panels.

Question 3

What does a roof's 'pitch' describe?

Accepted Answer

The vertical rise per 12 inches of horizontal run

Answer

Roof pitch is expressed as the number of inches of vertical rise for every 12 inches of horizontal run.

Question 4

When installing valley flashing, which method leaves the shingles from both roof planes trimmed back from the valley centerline?

Accepted Answer

Open valley

Answer

An open valley exposes the metal flashing between trimmed shingles on both sides, allowing water to run freely down the center.

Question 5

How many nails are typically required per standard three-tab asphalt shingle in a high-wind zone?

Accepted Answer

6 nails

Answer

Most manufacturers and building codes require 6 nails per shingle in high-wind zones to prevent uplift.

Roof Sailing Practice Test