INTERNACHI ROOFING EXAM ACTUAL
EXAM COMPLETE 300 QUESTIONS
WITH CORRECT VERIFIED ANSWERS
ALREADY GRADED A+ LATEST
VERSION 2025
"should flashing be redone on a second layer of asphalt shingle? - CORRECT ANSWER=> Yes. It's
an unreliable condition recommend having a roofer look at it."
"minimum nominal shank diameter for roofing nails? - CORRECT ANSWER=> 12-gauge"
"Roofing nail minimum head diameter ? - CORRECT ANSWER=> 3/8th inch"
"how many nails required for full width shingle? - CORRECT ANSWER=> 4"
"misplaced roofing nails can pose? - CORRECT ANSWER=> a potential water entry point."
"asphalt shingles should not be installed on a roof with a pitch of? - CORRECT ANSWER=> 2/12 or
less unless some special water proofing is applied"
"sheathing should be fastened by? - CORRECT ANSWER=> min of 8 penny common nails 6 inches
on center at inter mediate areas they should be 12 inches on center."
"4 common sheathing mistakes - CORRECT ANSWER=> 1. wrong size fasteners
2. missing the frame
3. overdriving nails
4. using too many or too few"
1|Page
,"in high wind areas like Florida sheathing should be attached with ? - CORRECT ANSWER=> 8-
penny ring or screw shank nails - spaced 6 inches on center on all framing members"
"Should be specified and should not be over driven into or through the sheathing? - CORRECT
ANSWER=> full round head or head nails"
"roof slopes or_____ or greater, a minimum single layer of underlayment is recommended -
CORRECT ANSWER=> 4:12"
"roof slopes between _____ and ______, a single layer of self-adhering polymer-modified
bitumen or minimum double layer underlayment is recommended - CORRECT ANSWER=> 2:12
and 4:12"
"drip edge metal should be installed where? - CORRECT ANSWER=> at the rake(goes over) and
eaves (goes under) fastened every 12 inches; or 6 inches for high wind area; underlayment
exceeds drip edge"
"why check for offset pattern ? - CORRECT ANSWER=> consecutive shingle course is offset by 6
inches."
"roof and valley flashing is important why? - CORRECT ANSWER=> the valley is lower in slope
hence more vulnerable to water problems;"
"3 types of valleys for asphalt shingle roofs - CORRECT ANSWER=> 1. open
2. closed cut valley
3. woven valley"
"if nail penetration isn't into the decking material enough due to short nails or second layer of
shingles is an issue why? - CORRECT ANSWER=> they wont be properly attached."
"4 types of flashing? - CORRECT ANSWER=> 1. penetration
2. vertical surface
3. skylight
4. steep to low slope transition"
"for penetration flashing you should check the following? - CORRECT ANSWER=> vent pipes,
HVAC flue pipes, exhaust fans, electrical stand pipes, etc.."
2|Page
, "4 types of vertical surface flashing? - CORRECT ANSWER=> 1. apron
2.step flashing
3. cricket or backer flashing
4. counter-flashing"
"Apron flashing is installed where? - CORRECT ANSWER=> Where a roof intersects a headwall like
front side or down slope side of a dormer or chimney or any transition between horizontal and
vertical"
"Step Flashing is? - CORRECT ANSWER=> where the roof intersects a vertical side wall. small
pieces of metal installed with each shingle and steps as per installation requirements."
"cricket or backer flashing - CORRECT ANSWER=> where the roof intersects a chimney or a curbed
roof penetration"
"What is counter flashing? - CORRECT ANSWER=> is the material that covers and protects the top
edges of all other types of flashing to prevent water intrusion."
"Skylight flashing - CORRECT ANSWER=> very much like chimney flashing - apron flashing that
steps on the sides and backer flashing on the back. not likely to see cricket flashing on
skylights."
"steep or low slope flashing is? - CORRECT ANSWER=> Where sloped shingle roof intersects and
drains onto a low-sloped or membrane flat roof."
"The __________ ___________ is a non-self-supporting ladder that is not adjustable in length,
consisting of one section - CORRECT ANSWER=> single ladder"
"An ___________ ______________ has one or more pairs of locking articulated joints, which
allow the ladder to be set up in several Telescoping ladder different configurations. - CORRECT
ANSWER=> articulated ladder (aka little giant)"
"Remember to use the ___________ Rule for extension ladders - CORRECT ANSWER=> 4-to-1"
"The side-rails should extend at least __ feet above the roof to be safe. - CORRECT ANSWER=> 3"
"roof slope is expressed as 4:12 or 6:12 using a formula? - CORRECT ANSWER=> rise over run"
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EXAM COMPLETE 300 QUESTIONS
WITH CORRECT VERIFIED ANSWERS
ALREADY GRADED A+ LATEST
VERSION 2025
"should flashing be redone on a second layer of asphalt shingle? - CORRECT ANSWER=> Yes. It's
an unreliable condition recommend having a roofer look at it."
"minimum nominal shank diameter for roofing nails? - CORRECT ANSWER=> 12-gauge"
"Roofing nail minimum head diameter ? - CORRECT ANSWER=> 3/8th inch"
"how many nails required for full width shingle? - CORRECT ANSWER=> 4"
"misplaced roofing nails can pose? - CORRECT ANSWER=> a potential water entry point."
"asphalt shingles should not be installed on a roof with a pitch of? - CORRECT ANSWER=> 2/12 or
less unless some special water proofing is applied"
"sheathing should be fastened by? - CORRECT ANSWER=> min of 8 penny common nails 6 inches
on center at inter mediate areas they should be 12 inches on center."
"4 common sheathing mistakes - CORRECT ANSWER=> 1. wrong size fasteners
2. missing the frame
3. overdriving nails
4. using too many or too few"
1|Page
,"in high wind areas like Florida sheathing should be attached with ? - CORRECT ANSWER=> 8-
penny ring or screw shank nails - spaced 6 inches on center on all framing members"
"Should be specified and should not be over driven into or through the sheathing? - CORRECT
ANSWER=> full round head or head nails"
"roof slopes or_____ or greater, a minimum single layer of underlayment is recommended -
CORRECT ANSWER=> 4:12"
"roof slopes between _____ and ______, a single layer of self-adhering polymer-modified
bitumen or minimum double layer underlayment is recommended - CORRECT ANSWER=> 2:12
and 4:12"
"drip edge metal should be installed where? - CORRECT ANSWER=> at the rake(goes over) and
eaves (goes under) fastened every 12 inches; or 6 inches for high wind area; underlayment
exceeds drip edge"
"why check for offset pattern ? - CORRECT ANSWER=> consecutive shingle course is offset by 6
inches."
"roof and valley flashing is important why? - CORRECT ANSWER=> the valley is lower in slope
hence more vulnerable to water problems;"
"3 types of valleys for asphalt shingle roofs - CORRECT ANSWER=> 1. open
2. closed cut valley
3. woven valley"
"if nail penetration isn't into the decking material enough due to short nails or second layer of
shingles is an issue why? - CORRECT ANSWER=> they wont be properly attached."
"4 types of flashing? - CORRECT ANSWER=> 1. penetration
2. vertical surface
3. skylight
4. steep to low slope transition"
"for penetration flashing you should check the following? - CORRECT ANSWER=> vent pipes,
HVAC flue pipes, exhaust fans, electrical stand pipes, etc.."
2|Page
, "4 types of vertical surface flashing? - CORRECT ANSWER=> 1. apron
2.step flashing
3. cricket or backer flashing
4. counter-flashing"
"Apron flashing is installed where? - CORRECT ANSWER=> Where a roof intersects a headwall like
front side or down slope side of a dormer or chimney or any transition between horizontal and
vertical"
"Step Flashing is? - CORRECT ANSWER=> where the roof intersects a vertical side wall. small
pieces of metal installed with each shingle and steps as per installation requirements."
"cricket or backer flashing - CORRECT ANSWER=> where the roof intersects a chimney or a curbed
roof penetration"
"What is counter flashing? - CORRECT ANSWER=> is the material that covers and protects the top
edges of all other types of flashing to prevent water intrusion."
"Skylight flashing - CORRECT ANSWER=> very much like chimney flashing - apron flashing that
steps on the sides and backer flashing on the back. not likely to see cricket flashing on
skylights."
"steep or low slope flashing is? - CORRECT ANSWER=> Where sloped shingle roof intersects and
drains onto a low-sloped or membrane flat roof."
"The __________ ___________ is a non-self-supporting ladder that is not adjustable in length,
consisting of one section - CORRECT ANSWER=> single ladder"
"An ___________ ______________ has one or more pairs of locking articulated joints, which
allow the ladder to be set up in several Telescoping ladder different configurations. - CORRECT
ANSWER=> articulated ladder (aka little giant)"
"Remember to use the ___________ Rule for extension ladders - CORRECT ANSWER=> 4-to-1"
"The side-rails should extend at least __ feet above the roof to be safe. - CORRECT ANSWER=> 3"
"roof slope is expressed as 4:12 or 6:12 using a formula? - CORRECT ANSWER=> rise over run"
3|Page
