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Exam (elaborations)

CM 223 Questions with 100% Actual correct answers

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CM 223 Questions with 100% Actual correct answers

Institution
CM 1011
Module
CM 1011








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Uploaded on
June 26, 2024
Number of pages
2
Written in
2023/2024
Type
Exam (elaborations)
Contains
Questions & answers

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CM 223
70% of lawsuits have to do with what - ANS-Roofs

Sloped roof pitch? - ANS-> 3"/12"

Low sloped roof pitch? - ANS-< 3"/12"

Flat roof types - ANS-Built-up, SBS Modified, single ply

Steep roof types - ANS-Shingles, metal, tile, wood shingle

Roofing square dimension? - ANS-10 ft X 10 ft

Benefits of low slope roof - ANS-Less material, more usable space, easy to maintain, aesthetic
(hidden equipment)

Flat roof drains - ANS-Scupper drains, roof drain, gutter

Single ply roof types - ANS-Adheared, mechanical

Thermosetting - ANS-Will not adhear to each other w/ hear (EPDM)

Thermoplastic - ANS-Heat welded (becomes playable or bondable with heat) (TPD, PVC)

Types of water infiltration - ANS-Gravity, capillary, wind

Gravity induced water infiltration - ANS-Water travels down and sideways due to gravity

Capillary induced water infiltration - ANS-Adhesive/cohesive forces push water upwards

Wind induced water infiltration - ANS-Pressure differential waterproofing

Waterproofing types - ANS-Membranes, overhangs, joint seals, flashings

Membranes - ANS-Shed water, block water from penetrating (wind, gravity)

Overhangs - ANS-Provides a physical barrier from water (wind, gravity)

Joint sealants - ANS-Viscous liquid or tape to seal cracks (capillary, gravity)

Flashings - ANS-Impervious material, makes it difficult for water to enter (capillary, gravity)

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