BDC-Finishes Flashcards

0
Q

What is the first coat in a plaster/ stucco system called

A

Scratch coat

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1
Q

What is stucco made from?

A

Portland cement, lime, sand and water

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2
Q

What’s the second layer in a plaster/ stucco system called?

A

Brown coat

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3
Q

What’s the third and final coat in a plaster/ stucco system called?

A

Finish coat

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4
Q

What is the recommended spacing of stucco expansion joints

A

10’

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5
Q

What are advantages for using gyp bd?

A
  • low installation cost
  • quick & easy install
  • fire resistance
  • sound control
  • readily available
  • versatility
  • ease of finishing
  • easy install
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6
Q

What are the common Gages for stl studs

A

25g, 22g, 20ga

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7
Q

What Are standard depths of steel studs?

A

1 5/8, 2 1/2”, 3 5/8”, 4”, &6”

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8
Q

What are the 4 different absorptive classes of tile?

A

NONVITREOUS: tile with water absorption of more than 7%
SEMIVITREOUS: water absorption of more than 3 but less than 7%
VITREOUS TILE: absorption between .5% & 3%
IMPERVIOUS TILE: absorption less than .5%

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9
Q

How would you lay a tile floor on a floor that’s expected to heavily deflect? (ie pre- cast conc)

A

Use a reinforced mortar bed w/ a cleavage membrane (polyethylene film) so that the floor finish and the floor structure can move independent

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10
Q

in wood flooring what is the average harvest age for bamboo?

A

3-4 yr

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11
Q

what is the pitch of a carpet?

A

its the number of warp lines of yarn in 27” width

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12
Q

in carpet what is the stich?

A

the number of lengthwise tufts in 1” the higher the pitch and stich the denser the carpet

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13
Q

whats the difference solvent based and water based paints?

A

Solvent based have binders dissolved in or containing organic solvents. Water based coatings have binders that are soluble in water (latex & Acrylic)

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14
Q

what are the 4 major parts to paints (coatings)?

A

VEHICLE: its what provides the adhesion.
SOLVENT: Volatile liquids used to improve the working properties of the paint and coating.
PIGMENT: Finley divided solids that add color
ADDITIVES: they modify various properties of the coating, driers are an example that hasten the curing of the coating

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