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Red SEAL PREP > Block D Framing > Flashcards

Block D Framing Flashcards

1
Q

How many nails and length of nail are required to attach a 38mm x 140 mm plank decking?

A

2 nails 82mm in length

O.B.C 9.23.3.4. table

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2
Q

Procedure for installing a window

A

Level bottom, plumb sides, check square, shim sides

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3
Q 
Determine the headroom for a stairwell when given the stairwell opening, framing and the unit rise/unit run. 
Stairwell opening: 3290mm
Framing material: 315mm
Unit rise: 185mm
Unit run: 255mm
A

2072mm

Stairwell = Urun/Urise ( Headroom + Framing material)
3290 = 255/185 ( Headroom + 315)
3290 = 1.3784 ( Headroom + 315)
3290/ 1.3784 = Headroom + 315
(3290/ 1.3784) - 315 = Headroom
Headroom = 2071.825 mm or 2072mm

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4
Q

How many nails and what is the length of nail required to attach a roof truss to a top plate

A

3 nails, toenailed 82mm in length

OBC 9.23.3.4. table

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5
Q

When ventilating an attic space, how much ventilation is required at the soffit?

A 
Not less than 25%
Keywords:
9.19. Roof Spaces
OBC 9.19.1.2. Vent Requirements
OBC 9.19.1.2.(3)(c)
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6
Q

New attic hatch is installed, what is the minimum square footage size allowed

A

0.32 m²

9.19. Roof Spaces
OBC 9.19.2.1.(3)

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7
Q

What is size vent is required needed if the roof slope is 1in 8 and the roof space is 300 sqm?

A

2 m²

9.19. Roof Spaces
OBC 9.19.1.2.(2) 1 in 8 is less than 1 in 6 therefore the venting ration is 1/150, 300sqm would require 2 sqm of venting

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8
Q

Number of squash blocks needed for a rectangular building 24’-10” x 18’-9” with one load bearing beam and joists 16 “ o.c.

A

108

24.83333’ x .75=18.625 therefore 17 ‘I’joists and 2 rim joists. Each ‘I’ joist requires 2 squash blocks (one on each side) at three different location (side, middle beam, side) totaling 6pcs.

17 x 6=102. Each rim joist needs only three (one at each location). 2 x 3 = 6 +102=108 squash blocks

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9
Q

A building is 24 x 40 ft with a vaulted ceiling with a 2/3 slope . How many bundles of insulation are needed to insulate ceiling if a bag covers 82.3 sq ft and 2 layers of insulation are required

A

28 Bags

First convert the slope to get a the measurements required:
2/3 = 8/12 of slope.

Find the ULL, c = ULL
8² + 12² = c²
64 + 144 = c²
c = √ 208
ULL = c = 14.422

Find Run,
Buildings width ÷ 2 = run
Run = 24 ÷ 2
Run = 12

Find the Rafter length = RL,
RL = run x ULL
RL = 12’ x 14.4222
Rafter Length = 173.0665’ or 14’ 5”

Bag of insulation needed = Bundles or Bags = ?

(Rafter Length x Building’s Length x Sides x Layers ) divided by per
ft.² covered on each bag.

Bags = (14.422 x 40’ x 2 sides x 2 layers) ÷ 82.3 ft.²

Bags = 28.0379 or 28

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10
Q 
What size is the rough opening to be framed for a double door when given the following dimensions.
30” door
1/8” door gap allowance
5/8” jamb material
1” shimming gap
A

63 ⅝”

30” x 2 = 60”, double doors
(1/8” x3), 3/8”, 3 gaps = 2 sides 1 middle
(5/8” x 2) = 1 1/4” , jambs for both sides
= 1” x 2 = 2”, gaps for both sides
= 60” + ⅜” + 1 ¼” + 2”
= 63 ⅝”

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11
Q

How is a Skylight to be framed into a roof?

A

Install outer header to inner trimmer rafters, install cripple rafters to outer header, install inner header to outer header and inner trimmer rafter, install common rafter to inner trimmer rafter

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12
Q

What is done when a flush beam hanger does not reach the top of the web?

A

Web stiffener on either side

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13
Q

A roof has a span of 24 feet and is unequal slope, minor 8/12, major 4/12. Both top plates are the same height, what is the total rise?

A

64”

Given:
Building’s span = 24’
Greater slope = 8/12
Lesser slope = 4/12

Find the Run for both slopes:
For 4/12 slope,
unit rise x span = 4 x 24 = 96” or 8’
Run for 4/12 slope = 8’

For 8/12 slope,
unit rise x span = 8 x 24 = 192” or 16’
Run for 8/12 slope = 16’

Finally, we calculate for the Total Rise. To get an accurate result we need to cross multiple each sides’ run and unit rise.

Steeper slope’s unit rise x gradual slope’s run.
8 x 8 = 64”
Steeper slope’s run x gradual slope’s unit rise.
16 x 4 = 64”
64

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14
Q

What is the minimum staggered space for a double top plate?

A

Not less than one stud space

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15
Q

How many rows of bridging needed on a floor system that has a clear span of 4.5m?

A

2

    1. Wood Frame Construction
  2. 23.9. Floor Joists

Code 9.23.9.4.(1)(b)Code says 2.1m from each supports so 4.5m/2.1m= 2.14 or 3 spaces therefore 2 rows are needed.

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16
Q

What is required in regards to safety when installing a cricket on a roof?

A

Lifeline & Harness

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17
Q

How do you support a rake cornice that is overhanging 2 feet?

A

Cantilevered lookouts

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18
Q

What is the purpose of H clips on a roof?

A

to prevent deflection of the sheets between trusses

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19
Q

What is the minimum width of a 4-ply built up beam pocket?

A

7”

6” + 1/2” on either side minimum spacing

4 x 1 ½” = 6”
2 x ½” = 1”

Total width 7”

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20
Q

What is done to keep trusses for falling during installation?

A

attach a diagonal brace across the top chord of the trusses

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21
Q

What is done to prevent squeak in joist/hanger/beam connection

A

apply mastic to hanger before installation of joist.

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22
Q

Minimum collar tie material is

A

2x4 (38 x 89)

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23
Q

The layout from one wall studs from the end to the 3rd stud in at 24” O.C would be?

A

47 ¼”

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24
Q

The shortening amount for the tail cut of a hip rafter measured how?

A

At a right angle to the plumb cut and is the full diagonal thickness of the rough fascia.

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25
Q

A shed Roofs rafter run is determined by?

A

the span – one wall thickness

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26
Q

The optimum place for a collar tie to be installed?

A

The middle third of the rise.

27
Q

How do you calculate the actual length of the ridge board on an equal pitch roof?

A

building length – the building width + the thickness of the ridge board

28
Q

Slight crowns in floor joists at the side of an opening can be fixed by?

A

placing crowns in opposite directions and nailing together

29
Q

When framing, an intersecting truss roof the best place to begin is?

A

at the girder truss

30
Q

How do you tighten T&G subflooring during installation

A

Use a sledgehammer

31
Q

A cornice is made up of what components

A

Rafter, ledger board, lookout, and fascia.

32
Q

In open cornices, the frieze board is cut and installed between

A

Rafters

33
Q

How to level a framed floor system on an uneven foundation wall

A

Use shims

34
Q

How to eliminate thermal breaks in a stud wall

A

Spray foam

35
Q

Angle of a cheek cut at the top of a hip

A

22.5; 45; 90

36
Q

Question on how to keep joists straight while laying floor sheathing

A
  • Mark sheathing with floor OC spacing and adjust as you go along
37
Q

Proper technique for installing bridging

A
  • Attach at top, install sheathing, go back and attach at bottoms
38
Q

A question about max span for a lintel of specific species and snow load.

A
  • the odd part here was the span table showed lintels made up of 2-38x234s, spec’d install called for 4-38x234 – is the span just doubled
39
Q

Is it allowed to support a joist tail with a joist hanger?

A

Answer: Yes

  1. 23.9 Floor Joists
  2. 23.9.7. Support of Tail and Header Joists
  3. 23.9.7.(1)
40
Q

Can the bottom flange of a steel beam be used to support floor joists?

A

Answer: yes

  1. 23.9 Floor Joists
  2. 23.9.2. Joists Supported by Beams
  3. 23.9.2.(3)
41
Q

What is the maximum that can be notched out of a 2x10 floor joist?

A

Answer: 1/3, 78mm or 3-1/16”

  1. 23.5. Notching and Drilling
  2. 23.5.2. Notching of Framing Members
  3. 23.5.2.(1)
42
Q

Are you required to let-in diagonal bracing into an exterior wall when it is sheeted with OSB?

A

Answer: No

    1. Wood Frame Construction
  2. 23.10.2. Bracing and Lateral Support
  3. 23.10.2.(2)(b)(iii)
43
Q

What snowload should a residential balcony be designed to carry?

A

Answer: specificed roof snow load or 1.9Kpa

Keywords:

    1. Structural requirements
  2. 4.2. Specified Loads
  3. 4.2.3. Platform Subject to Snow and Occupancy Loads.

9.4.2.3.(1)

44
Q

What is the minimum width of an entrance door?

A

Answer: 810mm wide

Table 9.5.11.1

45
Q

Are wood columns allowed to be used to support a beam?

A

Answer: Yes

    1. Columns
  2. 17.4. Wood Columns
  3. 17.4.1.(1)
46
Q

What is the min. clearance between combustible framing material and an exterior concrete chimney?

A

Answer: 12mm

    1. Masonry and Concrete Chimneys and Flues
  2. 21.5. Clearance from Combustible Construction.
  3. 21.5.1.(1)(b)
47
Q

Except when joists are supported by a ribbon board what is the min. bearing for floor joists?

A

Answer: 38mm

    1. Wood Frame Construction
  2. 23.9. Floor Joists
  3. 23.9.1.(1)
48
Q

What is special about the size of a hip or valley rafter when compared to a common rafter?

A

Answer: must be 2” greater in depth

    1. Wood Frame Construction
  2. 23.13. Roof and Ceiling Framing
  3. 23.13.6.(1)
49
Q

What is the maximum size of hole permitted to be drilled through a floor joist that is 38mm x 184mm?

A

Answer: 46mm (1/4 joist depth)

    1. Wood Frame Construction
  2. 23.5. Notching and Drilling
  3. 23.5.1.(1)
50
Q

When building a floor into the side of a steel beam, can the floor joists be supported directly on the bottom flange of the beam?

A

Answer: yes

    1. Wood Frame Construction
  2. 23.9. Floor joists
  3. 23.9.2.(3)
51
Q

What is the min, size of end bearing required at the top of a column, if it has to support a wood beam measuring 6” x 10” x 25’

A 
Answer: 150mm
Keyword: 
9.17. Columns 
9.17.3.2. End Bearing Plates
9.17.3.2.(1)
52
Q

Can a splice be placed in a built up wood column?

A 
Answer: No
Keywords: 
9.17. Columns
9.17.4. Wood Columns
9.17.4.2. Materials

9.17.4.2.(2)

53
Q

How many rows of cross bridging are required for floor joists spanning 5.28m?

A

3 rows

5.28 / 2.1 = 3 rows

54
Q

Can studs be spliced?

A

9.23. Wood Frame Construction
9.23.10. Wall Studs
9.23.10.4.(1)
Answer: yes, if they are finger jointed with structural adhesive

55
Q

What is the min number of studs required at an exterior corner?

A

Answer: not less than equivalent of two studs

Keyword:

    1. Wood Frame Construction
  2. 23.10. Wall Studs
  3. 23.10.5. Support for Cladding materials

9.23.10.5.(1)

56
Q

What is the min allowable space between joints in the top plate of a load-bearing wall?

A

Answer: not less than one stud space

    1. Wood Frame Construction
  2. 23.11. Wall studs
  3. 23.11.4(1)
57
Q

Are filler pieces allowed to be used when building headers for openings in a load-bearing wall?

A 
Answer: Yes
Keyword:
9.23. Wood Frame Construction
9.23.12. Framing over Openings
9.23.12.2.Opening in Loadbearing Walls
9.23.12.2.(3) Lintel members may be separated by filler pieces.
58
Q

How many nails and what are the lengths required when toe-nailing a ceiling joist to a top plate?

A

2 nails, 3-1/4” long

9.23.3.4.(1)

59
Q

What is the min. length of a rafter seat cut in a birdsmouth?

A 
Answer: 38mm
Keyword: 
9.23. Woof Frame Construction
9.23.13. Roof Ceiling Framing
9.23.13.3  End Bearing Length

Reference:9.23.13.3.(1)

60
Q

Are birdsmouths normally required where rafters sit on top of wall plates

A

Yes

    1. Woof Frame Construction
  2. 23.13. Roof and Ceiling Framing
  3. 23.13.5(1)
61
Q

What can be added to a framed roof to effectively reduce the span for rafters and joists if collar ties are already installed?

A

Answer: dwarf walls or struts

Keywords:

    1. Wood Frame Construction
  2. 23.13 Roof and Ceiling Framing
  3. 23.13.7. Intermediate Support for Rafters and joist.

9.23.13.7.(3)

62
Q

What size steel beam is required to support a floor in a two storey house with a supported joist length of 3.70m and a span of 6.3m?

A

Answer: w250x33
Keywords:
9.23. Wood Frame Construction
9.23.4. Maximum Spans

Table 9.23.4.3 Maximum Spans
for Steel Beams Supporting Floors in Dwelling Units.

63
Q

What grade and size of spruce lumber would be required for a floor joist to span 4.89m when spaced 400mm o.c., with strapping and cross bridging?

A

Answer:38mm x 286mm, Select Structural

    1. Wood Frame Construction
  2. 23.4. Maximum Spans
  3. 23.4.2. Spans for Joists, Rafters and Beams.
  4. 23.4.2.(1)table A-1

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