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QPR 5 Study Guide > Lath > Flashcards

Lath Flashcards

1
Q

What is the tolerance for level and plumb on weep screed, casing, and J-metal?

A

No tolerance

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2
Q

What is to be done on the outside corners of all weep screed?

A

Mitered and clipped to match the corner aid.

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3
Q

What type of weep screed is installed at all shear walls?

A

FHA #9

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4
Q

What type of weep is installed at non-shear wall locations?

A

FHA #7

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5
Q

What size casing is installed at gable vents?

And what is the Stucco Tradepartner to do around the entire perimeter of the gable vent?

A

3/8” casing

Caulk the perimeter

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6
Q

What size of casing is installed at garage return walls?

A

3/8” casing

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7
Q

What size casing is installed at all exterior doors?

A

1 3/8” casing

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8
Q

What should be done with the header piece of casing when installing it on exterior doors?

A

The header piece is to extend 1” past both legs

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9
Q

Who installs batt insulation behind all non-accessible (tub/shower/fireplace) locations?

Who provides the insulation?

A

The lath Tradepartner installs the batts.

The Shea field manager provides the insulation to the lather.

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10
Q

What type of vapor barrier does the lather install?

A

60 minute grade “D” vapor barrier

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11
Q

How many layers of vapor barrier is installed over OSB?

A

2 layers

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12
Q

What is the minimum head lap for the vapor barrier?

A

6”

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13
Q

What is the minimum end lap on the vapor barrier?

A

12”

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14
Q

At windows, the first two rows of vapor barrier (from the bottom) are to be installed how?

A

Behind the window moist stop

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15
Q

What is to be installed on top of all parapet walls?

And how far should it wrap down all sides?

A

Bituthane.

Wrap a minimum of 4”

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16
Q

What is to be installed at all recessed windows and ledges 6” or deeper?

And how far up and down the sides should it wrap?

A

Bituthane.

It should wrap up and down all sides a minimum of 4”

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17
Q

At all recessed windows and ledge locations the moist stop, bituthane, and grade D vapor barrier should be installed how?

A

Tightly into the corners

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18
Q

What gauge and size wire should the lather use?

A

1” - 20 gauge wire

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19
Q

What type of foam board should the lather use?

A

1.5 lb. tongue and groove foam

20
Q

How should the foam be installed?

A
  • Tightly utilizing the interlocking tongue and groove.
  • Horizontally, with the sheets staggered at the joints.
21
Q

Foam should be installed tightly to widow frames and eave blocks with a maximum gap of _______ ?

A

1/4”

22
Q

At all mopboard locations the foam is to terminate where?

A

It is to terminate directly on top of the Z-bar metal.

23
Q

What should be done to all the joints in the foam board?

A

They are to be taped, caulked or covered per the local municipality guidelines.

24
Q

What does the lather install at all attic areas?

A

1” R-tech foam (or Star-R Guard). Standard foam is not acceptable at these locations.

25
Q

How is R-tech or Star-R Guard installed?

A

All joints are to have solid backing, all non-tongue and groove seams and gaps that exceed 1/4” (including gaps at barge blocks) are to be sealed with R-tech or Star-R Guard tape.

26
Q

Lath wire is to have a minimum _____ inch head lap.

And a minimum _____ inch end lap.

A

3”

6”

27
Q

All lath wire is to be stapled off every ____ inches at the perimeter and ____ inches in the field.

A

6”

6”.

28
Q

Lath staples should not be set deeper than _____ below the surface of the foam.

A

3/8”

29
Q

There should be no lath staples closer than ____ inches to the edge of the window frame.

A

2”

30
Q

Lath nails/staples are to have a minimum ____ inch penetration into solid wood.

A

3/4”

31
Q

Is OSB or plywood considered solid lath backing?

A

NO. Solid backing is 2X material only.

32
Q

What is an expanded metal butterfly?

A

A minimum 4” X 4” diamond mesh metal.

33
Q

Where does the lather install expanded metal butterflies?

A

At the top corners of all doors, and at all corners of window openings.

34
Q

Is a metal butterfly required if a window gets popouts?

A

No

35
Q

What is the tolerance for plumb, level and square for popouts?

A

No tolerance

36
Q

What does the lather install on all outside edges?

A

Corner aid

37
Q

What do soffits 12” or wider receive?

A

Diamond mesh metal on the entire horizontal surface

38
Q

What does the lather install at all stone locations?

A

Minimum 18 gauge diamond mesh metal

39
Q

After the completion of the lath, what is the lather required to do at all “recessed” windows?

A

They are required to water test all “recessed” windows.

40
Q

How should corner aid be secured?

A

It should be secured every 18” OC on both sides.

41
Q

The lather is to caulk all gaps and penetrations in the foam and vapor barrier (inside and out) with what?

A

An approved polyurethane caulking

42
Q

What is the lather required to do on the inside of the weep screed?

A

Caulk the weep screed to the bottom plate with an approved caulking.

43
Q

What is the lather required to do at all nails/staples that miss the backing?

A

Remove or clip them, and caulk the penetration in the vapor barrier with an approved polyurethane caulking.

44
Q

What is the lather required to do with any torn, or damaged vapor barrier?

A

Repair it and seal it with an approved polyurethane caulking (no painters caulk).

45
Q

What is the final inspection the lather is required to do upon completion of a job? And what should they do if they find any items?

A

They are to inspect all electrical wires, plumbing lines and Freon lines for staple penetrations. If a water line is hit, the water is to be turned off.

They are to mark the location on the floor and then notify the Shea field manager.

46
Q

Why is the weep screed at shear walls a different size?

A

So the weep can plane out evenly with the weep at non-shear walls.

47
Q

How far should all corner aid be held out and why?

A

3/8” from the lath to allow consolidation of the stucco behind the metal.

QPR 5 Study Guide (6 decks)

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