1|Page
NASCLA EXAM LATEST 2026-2027 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
How should resilient channels be installed with respect to
distance from floor and ceiling? - ANSWER-INSTALL RESILIENT
CHANNELS 2" FROM FLOOR, 6" FROM CEILING
How should furring channels be installed? - ANSWER-
PERPENDICULAR TO JOIST
What is the SPACING OF FURRING CHANNEL FASTENERS? -
ANSWER-24" OC
Temperature of hanging drywall? - ANSWER-TEMPERATURE TO
HANG DRYWALL SHOULD BE MORE THAN 50 DEGREES,
ACCLIMATED FOR 24 HOURS AT 55-70 DEGREES
What is the width of a gypsum control joint? - ANSWER-GYPSUM
CONTROL JOINT WIDTH IS 1/2"
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Job conditions of finishing veneer plaster? - ANSWER-GREATER
THAN 55 DEGREES, HUMIDITY 20-50 %
THE SPACING OF FASTENERS FOR CORNER BEAD MUST
NOT BE MORE THAN.... - ANSWER-12" OC
Storage Temperature of Gyspum... - ANSWER-Above 55
degrees, products start to deteriorate at 125 degrees
When stacking gyspum, how far should the base of the stack be
from the wall? - ANSWER-4"-6" FROM WALL
When can a door be used as a wall control joint? - ANSWER-THE
DOOR MAY BE USED AS A WALL CONTROL JOINT IF THE
JOINT GOES FROM THE CORNER UP
Some purposes of roofing underlayment? - ANSWER-It protects
roof sheathing before the roof is applied, and it gives added
weather protection
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What is used to keep water from getting inside the roof? -
ANSWER-Ice Dams
The membrane of an ice dam should be HOW MANY inches
inside the wall line? - ANSWER-24 inches inside the wall line
What is the term for flashing built into the vertical surface and
bent down over the base flashing - ANSWER-counter flashing
What is the flashing built right up on the chimney and butts the
chimney and the shingles? - ANSWER-Step flashing
How much exposure should be given when roll roofing? -
ANSWER-17 inches
How many pounds per square are required of vapor barriers on
built up roofs? - ANSWER-45 to 80 lbs per square
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What are some purposes of aggregate on built up roofs? -
ANSWER-Protects the underlying roof system from weather and
protects from damage caused by foot traffic
When installing rafters, how much air space should be left for
ventilation? - ANSWER-1 inch minimum
In roofing, what is a major reason to install vapor barriers? -
ANSWER-Prevent condensation
What is the term used to describe the ability of a vapor barrier to
resist vapor penetration? - ANSWER-"Perms"
What is the maximum height of carpet? - ANSWER-1/2 inch
What is the max vertical change in level? - ANSWER-1/4"
What is the max bevel allowed? - ANSWER-1:2
NASCLA EXAM LATEST 2026-2027 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
How should resilient channels be installed with respect to
distance from floor and ceiling? - ANSWER-INSTALL RESILIENT
CHANNELS 2" FROM FLOOR, 6" FROM CEILING
How should furring channels be installed? - ANSWER-
PERPENDICULAR TO JOIST
What is the SPACING OF FURRING CHANNEL FASTENERS? -
ANSWER-24" OC
Temperature of hanging drywall? - ANSWER-TEMPERATURE TO
HANG DRYWALL SHOULD BE MORE THAN 50 DEGREES,
ACCLIMATED FOR 24 HOURS AT 55-70 DEGREES
What is the width of a gypsum control joint? - ANSWER-GYPSUM
CONTROL JOINT WIDTH IS 1/2"
,2|Page
Job conditions of finishing veneer plaster? - ANSWER-GREATER
THAN 55 DEGREES, HUMIDITY 20-50 %
THE SPACING OF FASTENERS FOR CORNER BEAD MUST
NOT BE MORE THAN.... - ANSWER-12" OC
Storage Temperature of Gyspum... - ANSWER-Above 55
degrees, products start to deteriorate at 125 degrees
When stacking gyspum, how far should the base of the stack be
from the wall? - ANSWER-4"-6" FROM WALL
When can a door be used as a wall control joint? - ANSWER-THE
DOOR MAY BE USED AS A WALL CONTROL JOINT IF THE
JOINT GOES FROM THE CORNER UP
Some purposes of roofing underlayment? - ANSWER-It protects
roof sheathing before the roof is applied, and it gives added
weather protection
,3|Page
What is used to keep water from getting inside the roof? -
ANSWER-Ice Dams
The membrane of an ice dam should be HOW MANY inches
inside the wall line? - ANSWER-24 inches inside the wall line
What is the term for flashing built into the vertical surface and
bent down over the base flashing - ANSWER-counter flashing
What is the flashing built right up on the chimney and butts the
chimney and the shingles? - ANSWER-Step flashing
How much exposure should be given when roll roofing? -
ANSWER-17 inches
How many pounds per square are required of vapor barriers on
built up roofs? - ANSWER-45 to 80 lbs per square
, 4|Page
What are some purposes of aggregate on built up roofs? -
ANSWER-Protects the underlying roof system from weather and
protects from damage caused by foot traffic
When installing rafters, how much air space should be left for
ventilation? - ANSWER-1 inch minimum
In roofing, what is a major reason to install vapor barriers? -
ANSWER-Prevent condensation
What is the term used to describe the ability of a vapor barrier to
resist vapor penetration? - ANSWER-"Perms"
What is the maximum height of carpet? - ANSWER-1/2 inch
What is the max vertical change in level? - ANSWER-1/4"
What is the max bevel allowed? - ANSWER-1:2
