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QPR 4 Study Guide Jasen > Roof > Flashcards

Flashcards in Roof Deck (46):
1

Gable trusses are to be held _________ with the wall below (no tolerance).

Flush

2

Trusses are not to be ________, _________, or have wane in excess of _______ of an inch on the narrow face, and ________ inch on the wide face of the member.

Damaged
Splintered
1/2”
1”

3

What’s the tolerance for plumb on trusses?

1/4” over the entire height of the truss

4

What’s the gap between trusses and non-bearing interior walls after the roof is loaded?

Minimum 1/4” gap

5

How much can you notch the top plate of a non-bearing interior wall?

1/2”

6

What connector must be installed on all trusses at bearing walls?

H2.5 or equivalent

7

Ceilings are flat within ______ of an inch in ______ feet, except at ceiling to wall joints where the tolerance is _____ of an inch in ______ feet.

3/8” in 8’

1/4” in 8’

8

If fascia joints exceed ______ of an inch, it is to be replaced.

1/4”

9

Gun nails in fascia are to be _________.

Patched

10

2X6 truss tails are nailed a minimum of ______ nails.

2X4 truss tails are nailed a minimum of ______ nails.

2X6: 3 nails

2X4: 2 nails

11

Shingle mold is nailed _____ nails every 24” OC, or _____ nail every 12” OC.

2
1

12

How are fascia returns that butt up to an adjacent wall installed?

A minimum 15lb grade D vapor barrier is installed completely behind the return, it extends a minimum 12” past all edges.

13

Fascia returns that do not butt up to an adjacent wall are to extend a minimum of ______ inches past the last truss.

24”

14

Barge blocks are installed every _____ feet starting from the ______.

8’

Ridge (top)

15

How are barge blocks nailed?

3 nails through the fascia and 2 nails into the outlook

16

The barge fascia is cut _______ inches off the roof deck for flat tile, and ______ inches for S tile.

3 1/2”

5 1/2”

17

Where are fascia clips installed?

All joints and corners. Not required at the ridge. However, if one is installed at the ridge, there must be clips on all the ridges.

18

Eave blocks and vents are to be installed ___________, __________ and ____________.

Plumb
Level
Square

19

Caulk gaps in eave blocks that are between ________ of an inch and _______ of an inch in width.
Do NOT caulk gaps smaller than ________ of an inch.

1/8” - 1/4”

1/8”

20

Replace eave blocks that have gaps that exceed ________ of an inch.

1/4”

21

Roof sheathing is installed with the long dimension running ____________ to the trusses.

Perpendicular

22

Roof sheathing should be installed with the joints _____________.

Staggered

23

All roof sheathing is to be installed with adjoining edges _________ to each other + or - _________ of an inch.

Flush

1/16”

24

Roof sheathing fasteners are set ___________ with the surface of the sheathing.

Flush

25

For proper diaphragm nailing, the roof sheathing is to be fastened to the eave blocks with a minimum of ______ nails, or ______ staples.

3

6

26

Hip and ridge board should be between ___________ and _______ inches away from the edge of the fascia.

12” - 15”

27

What size hip and ridge board is used for FLAT tile?

Hip: 2” x 4”

Ridge: 2” x 2”

28

What size hip and ridge board is used for S-tile?

Hip: 2” x 6”

Ridge: 2” x 4”

29

What size mopboard do we use?

And where is it installed?

2x6

Head and rake walls

30

What type of material do we use for lath backing?

2x6

31

How do we install lath backing above mopboard?

Between the studs at all spaces over 6”, and 1” above the mop.

32

All flat roofs have a minimum slope of ______ of an inch in ______ feet.

1/2” in 12’

33

How are gable vents installed?
1.
2.
3.
4.
5.

1. Plumb, level and square
2. Held out 1”
3. With solid backing around the perimeter
4. Defect free
5. Minimum 15lb grade D vapor barrier or window flashing around the perimeter

34

What size are O’Hagin vent cutouts?

7” x 19”

35

O’Hagins are to be cut ______ feet away from hips, ridges or valleys.

2’

36

The framers are to _____________ O’Hagin cutouts.

Protect (block across hole)

37

A min. ______ inch x ______ inch work platform is to be installed for the AC/Furnace a minimum of _______ inches up from the bottom edge of the bottom cord of the truss.

30” x 30”

9”

38

_________ the edges of the catwalk if it’s not supported by the truss.

Block

39

A min. _________ inch wide continuous catwalk is to be attached to the AC/Furnace work platform.

22 1/2”

40

Attic accesses are to have a min. _______ inch head clearance.

30”

41

Attic accesses within in insulated area are to have a min. ______ inch tall insulation barrier made from ________ material.

12”

2x

42

What is to be done with all shiners at exposed roofing areas?

Removed and patched

43

What is the tolerance for damage, splits, or wane in fascia?

No tolerance

44

What is the tolerance for cracks/splits in exposed wood (beams, blocks, tails)?

6” in length and 3/32” in width

45

Knot holes in exposed wood (beams, blocks, tails) are not to exceed ________ of an inch in diameter.

1/2”

46

Defects or delamination of any exposed wood is _______________ and must be _____________.

Unacceptable

Replaced