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Carpentry Level 4 > I Line > Flashcards

I Line Flashcards

1
Q

what are the three fire rating classes of shingles?

A

Class A, B, and C

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2
Q

what has the highest fire rating?

A

Class A

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3
Q

what is the lowest slope ash fault shingles usually go too?

A

2:12

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4
Q

how are ash fault shingles bound together?

A

by a strip of adhesive on the back that activates in the sun

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5
Q

what are most ash fault shingles today?

A

laminated shingles (architectural shingles)

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6
Q

what materials can the base matt of shingles be?

A

organic or fibreglass

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7
Q

what is the difference between cedar shakes and cedar shingles?

A

shingles are sawn on both faces where shakes a split on both faces

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8
Q

a square of ash fault shingles will cover how many square feet?

A

100 ft squared

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9
Q

what slope can wood shingles and shakes be installed?

A

3:12 and steeper

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10
Q

what is classified as built up roofing?

A

hot tar, gravel roof

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11
Q

what 2 basic types of metal roof coverings are there?

A

sheet metal and shingles

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12
Q

finishes of sheet metal are usually?

A

backed enamel or vinyl plastic

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13
Q

what does it mean to “work” the screws?

A

the metal will expand and contract eventually causing leaks

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14
Q

what is a type of roofing that has hidden fasteners?

A

a standing seam roof

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15
Q

which tile roof is long lasting and fireproof?

A

clay and concrete

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16
Q

how do you cut concrete tiles?

A

with a diamond blade and a circular saw

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17
Q

what tile is like a natural stone?

A

slate

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18
Q

where are the areas that flashing should be installed?

A

valleys, where roof meet walls the rise above the roof, and around skylights and chimneys

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19
Q

how wide is a drip edge?

A

12mm (1/2”)

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20
Q

where is a drip edge located?

A

under the first row of roofing that hangs over the facia

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21
Q

what does an under course consist of?

A

required for ash fault shingles, under course is an upside down layer of shingles that is fully covered by the first course of exposed shingles.

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22
Q

what is the minimum lap for head lap?

A

2 inches

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23
Q

what is a head lap?

A

the distance from the bottom edge of an overlapping shingle to the top of a shingle 2 courses under, measured op the slope (2” min)

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24
Q

what is minimum nail spacing for starter strip?

A

12 inches OC

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25
Q

ho for does eve protection have to be up the roof?

A

36 inches

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26
Q

shat is a starter strip?

A

12 inch wide roll of roofing or shingles

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27
Q

what is a course

A

a horizontal row of shingles or roofing

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28
Q

what is a shingle butt?

A

the bottom exposed edge of the shingle

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29
Q

what is a square of roofing?

A

the amount of roofing required to cover 100 square feet

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30
Q

where are ice and water shields mostly used?

A

troubled spots like along the eves, in valleys, and in unique areas where leaks are more likely.

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31
Q

min overlap for step flashing?

A

3 inches

32
Q

what’s the difference between open valley and closed valley?

A

an open valley is where the flashing is exposed and a closed valley is where the shingles protect the flashing

33
Q

what is the piece of flashing called on the lower side of the slope of a chimney?

A

an apron

34
Q

how do you flash down the sides of the chimney?

A

with a step flashing method

35
Q

what can be used for a flashing system against a wall on a roof?

A

a can’t strip, counter flashing and a reglet in the wall

36
Q

what is laminate laid on?

A

has a foam back or on a 3mm thick underlay of closed cell foam

37
Q

because the finished floor is not bonded or fastened to the subfloor, this type of flooring is called what?

A

a floating floor

38
Q

what is the min time for the moisture content in flooring to stabilize?

A

72 hours

39
Q

what are some reasons why sleepers are used?

A

to nail in place finished flooring or subflooing, level rough concrete floors, to provide a cushioned floor, to install insulation below floor

40
Q

how do you fasten sleepers to concrete floors?

A

with powder actuated fasteners penetrating 25mm into concrete

41
Q

what is the best way to level sleepers?

A

wit a layer level and with shims under the sleepers

42
Q

the layout of wood strip floors begins where?

A

parallel to the longest wall

43
Q

how much room should be left for expansion against the wall?

A

1/2 inch min against each wall

44
Q

what 2 ways can wood strip flooring be fastened?

A

face nailed, or blind nailed

45
Q

how are wooden flooring tiles fastened?

A

glued to the subfloor using latex adhesive

46
Q

what does a spline do?

A

connect 2 flooring strips back to back (groove to groove)

47
Q

where should you nail the base shoe?

A

into the base board allowing the flooring to expand and contract

48
Q

what is Latex-modified cement mortar for?

A

installing ceramic tile

49
Q

what amount of gap is left between sleepers and the wall?

A

3/4 inch

50
Q

why is wood strip flooring made with an undercut on the bottom?

A

the groove or undercut is used to help keep the boards from warping and allow them to sit flat on the subfloor

51
Q

where does resilient flooring get its name?

A

from its flexibility

52
Q

how are most resilient floors fastened?

A

applied to the subfloor with adhesive or is a peel-and-stick type

53
Q

what is the difference between ceramic and porcelain?

A

They are the same except porcelain tiles have much denser porcelain clay dust.

54
Q

why is the bulge of a drywall screw rounded?

A

to reduce tearing of the paper face

55
Q

what are the three keys needed for installing board?

A

minimum joints, fully fastened, and without surface defects

56
Q

what is the sequence of installing board?

A

install the ceiling first then install the walls from the top down

57
Q

what are ways of marking where plugs or cabinet backing is?

A

marking on the floor or video recording

58
Q

when does the drywall get fastened to top and bottom plates?

A

when the drywall is part of a braced wall panel or a fire-rated assembly

59
Q

why should ceiling board be fastened 12 inches from the wall?

A

to create a floating corner, truss uplift will occur but the board will still be joined to the wall board and not crack

60
Q

what size gap can be left when fitting around doors and windows?

A

1/2 inch

61
Q

how much room do you have to cut out electrical boxes?

A

1/8th because most face plates cover 1/4 inch

62
Q

what is a steel stud crimper used for?

A

designed to attach a metal stud rigidly to a metal track

63
Q

what can be done if steel stud wall heights exceed 2.4 meters?

A

3/4 or 1 1/2 wide channel stock can be used to stiffen the walls

64
Q

what is used to cut steel stud material?

A

aviation shears

65
Q

what 2 proposes are for punch-outs in steel studs?

A

allow electrical to pass through and permit the addition of channel stiffeners.

66
Q

what is deflection space and how much?

A

space between stud end and track base and 12 mm

67
Q

what steel stud fastening is meant for load bearing?

A

screws

68
Q

what gauges of steel stud is for non load bearing?

A

25, 22, 20, 18

69
Q

what gauges of steel stud is for load bearing?

A

16, 14, 12

70
Q

what are standard flange sizes?

A

typically 30mm and 32mm

71
Q

what are eyelets?

A

used to attach the hanger wire to the overhead supports

72
Q

what is the main support for the grid system?

A

the main Tee or Main Beam, hanger wire every 4 feet

73
Q

what are cross Tees?

A

they span between main Tees, ether 2 feet or 4 feet in length

74
Q

vent grills and light fixtures must what in suspended ceilings?

A

supported independently by their own hangers

75
Q

where are slots on 4’ cross tees?

A

on at the mid point (2’)

76
Q

where are the slots on a main Tee?

A

3 inches from the end and every 6 inches

Carpentry Level 4 (10 decks)

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