Home Inspector Test Home Inspector Roofing Systems and Materials 3

Question 1

What is the standard minimum headlap for asphalt roof shingles?

Accepted Answer

2 inches

Answer

A 2-inch minimum headlap is required for standard asphalt shingles to ensure water cannot penetrate between courses.

Question 2

Which roofing condition is described as 'fish-mouthing'?

Accepted Answer

Shingles with raised lower edges creating an opening

Answer

Fish-mouthing occurs when the lower edge of a shingle lifts away from the surface below it, creating an open gap resembling a fish's mouth.

Question 3

A home inspector notes that the roof deck shows sagging between rafters. What is the most likely cause?

Accepted Answer

Inadequate decking thickness or rafter spacing

Answer

Sagging between rafters (also called racking) typically results from decking that is too thin for the rafter spacing, or from structural rafter damage.

Question 4

What is the purpose of an ice and water shield membrane?

Accepted Answer

To prevent water infiltration from ice dams and wind-driven rain

Answer

Ice and water shield is a self-adhering membrane installed at eaves and valleys to block water from ice dams and wind-driven rain from entering the structure.

Question 5

Which of the following best describes step flashing?

Accepted Answer

Individual L-shaped metal pieces interwoven with shingles at a vertical wall

Answer

Step flashing consists of individual L-shaped metal pieces installed one per shingle course where a roof meets a vertical wall, directing water onto the shingles.

Home Inspector Test Practice Test

Home Inspector Test Practice Test

Home Inspector Test Home Inspector Roofing Systems and Materials 3