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NHIE Home Inspection Manual: Roof Study Questions
with 100% Verified Answers UPDATED!!!
At what pitch is a roof covering considered a "steep roof
covering?" - ANSWER Answer:
- 2:12 or greater
At what pitch is a roof covering considered a "low slope roof
covering?" - ANSWER Answer:
- 1/4:12 to 2:12
How do you describe asbestos cement shingles? (P. 63) -
ANSWER - commonly squares or rectangles; less commonly
octagons
- thickness is 1/8 inch to 1/4 inch
How are asbestos cement shingles installed? (P. 63) - ANSWER
Description
- fastened to WRB over sheathing
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When was asbestos cement shingles available to the public? (P.
63) - ANSWER - since 1900s; common from 1910s to 1950s
- until 1990s
What is the average service life of asbestos cement shingles? (P.
63) - ANSWER - service life is 50 years for thinner and 75 years
for thicker
What is the difference between asphalt and fiberglass shingles?
(P. 64) - ANSWER - asphalt shingles (organic) are felt
impregnated w/asphalt
- fiberglass shingles are fiberglass impregnated w/asphalt
How big is a square of shingles? (P. 64) - ANSWER - 100 square
feet
What are the slope requirements for shingles? - ANSWER -
Minimum slope: 2:12
- Minimum recommended: 4:12
Note:
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- Double underlayment required on 2:12 to 4:12
What is the warranty for 3 tab, dimensional, and laminated
shingles? (P. 64) - ANSWER Three tab:
- Warranty: 20 years
Dimensional:
- Warranty: 25 - 30 years
Laminated:
- Warranty: 35+ years
How much do shingles weigh? (P. 64) - ANSWER Three tab:
- Weight: 200 pounds per square
Laminated:
- Weight: 400 pounds per square
How should drip edge flashing be installed on composite shingle
roofs? - ANSWER Answer:
- Underlayment over drip edge at eaves
- Underlayment under drip edge at rakes
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How should composite shingle be fastened to roof deck? -
ANSWER Answer:
- galvanized or aluminum roof nails that penetrate at least 3/4
inches into sheathing
How many nails are typically required per strip of shingles? -
ANSWER Answer:
- at least 4 per strip
- 6 per strip on very steep roofs or in high-wind areas
Where should nails be installed on asphalt shingles? - ANSWER
Answer:
- fasten through seal strip
Note:
- nails installed above/below seal strip void warranty
What are the three main types of shingle valleys? - ANSWER
Three common valley types:
1) open,
2)closed-cut, &
NHIE Home Inspection Manual: Roof Study Questions
with 100% Verified Answers UPDATED!!!
At what pitch is a roof covering considered a "steep roof
covering?" - ANSWER Answer:
- 2:12 or greater
At what pitch is a roof covering considered a "low slope roof
covering?" - ANSWER Answer:
- 1/4:12 to 2:12
How do you describe asbestos cement shingles? (P. 63) -
ANSWER - commonly squares or rectangles; less commonly
octagons
- thickness is 1/8 inch to 1/4 inch
How are asbestos cement shingles installed? (P. 63) - ANSWER
Description
- fastened to WRB over sheathing
,2|Page
When was asbestos cement shingles available to the public? (P.
63) - ANSWER - since 1900s; common from 1910s to 1950s
- until 1990s
What is the average service life of asbestos cement shingles? (P.
63) - ANSWER - service life is 50 years for thinner and 75 years
for thicker
What is the difference between asphalt and fiberglass shingles?
(P. 64) - ANSWER - asphalt shingles (organic) are felt
impregnated w/asphalt
- fiberglass shingles are fiberglass impregnated w/asphalt
How big is a square of shingles? (P. 64) - ANSWER - 100 square
feet
What are the slope requirements for shingles? - ANSWER -
Minimum slope: 2:12
- Minimum recommended: 4:12
Note:
,3|Page
- Double underlayment required on 2:12 to 4:12
What is the warranty for 3 tab, dimensional, and laminated
shingles? (P. 64) - ANSWER Three tab:
- Warranty: 20 years
Dimensional:
- Warranty: 25 - 30 years
Laminated:
- Warranty: 35+ years
How much do shingles weigh? (P. 64) - ANSWER Three tab:
- Weight: 200 pounds per square
Laminated:
- Weight: 400 pounds per square
How should drip edge flashing be installed on composite shingle
roofs? - ANSWER Answer:
- Underlayment over drip edge at eaves
- Underlayment under drip edge at rakes
, 4|Page
How should composite shingle be fastened to roof deck? -
ANSWER Answer:
- galvanized or aluminum roof nails that penetrate at least 3/4
inches into sheathing
How many nails are typically required per strip of shingles? -
ANSWER Answer:
- at least 4 per strip
- 6 per strip on very steep roofs or in high-wind areas
Where should nails be installed on asphalt shingles? - ANSWER
Answer:
- fasten through seal strip
Note:
- nails installed above/below seal strip void warranty
What are the three main types of shingle valleys? - ANSWER
Three common valley types:
1) open,
2)closed-cut, &
