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CMP 124 Test 3| 79 Solved Questions with Verified Answers 100%|Latest 2024
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CMP 124 Test 3| 79 Solved Questions withVerified Answers 100%|Latest 2024
Moisture Resistant Drywall - ✔✔-Bathrooms, wet rooms
-MR = moisture resistant board
-Green board
Regular Drywall - ✔✔-White board
-Most commonly used in homes
-Not resistant to mold or mildew
High Impact Drywall - ✔✔-Purple
-Moisture and mold resistant
-Paper face is stronger
-Used in areas with a lot of traffic
Paperless Drywall - ✔✔-Mold and moisture resistant
-Fiberglass backing instead of paper
-Mold grows on paper
Nail Pops - ✔✔-Happen after 1st heating season
-When a nail or screw is protruding through the drywall
Nail Pop Prevention - ✔✔-Use shorter nails or screws
, -Use dry lumber
-Use steel studs
-Use adhesives to lessen the burden
Drywall Mud/Compounds - ✔✔-Pre-mix
-Dry powder (hot mix)
-Used to finish/cover drywall joints and corners
Drywall Procedure - ✔✔-Install ceiling panels first (lids)
-Hang sheets over doors/windows
-Finish the walls
-Apply mud
-Sand and then primer
NRC - ✔✔-Noise reduction coefficient
-A single number value ranging from 0.0 to 1.0
-Describes the average sound absorption performance of a material
STC - ✔✔-Sound transmission class
-Higher the number, the better
-Painting over porous surfaces lowers STC rating
Hard, Flat Surfaces - ✔✔-Reflect 98% of sound
-Sound absorption depends on thickness
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