I2 - LT #5

Question 1

What type of sealant is used to seal a wooden jamb to concrete?

Answer 1

Acoustical sealant

Question 2

What type of moulding is used at exterior openings when no rainscreen is used?

Answer 2

Brickmoulding

Question 3

How is the exterior finished sealed at a door when using a rainscreen?

Answer 3

1) Trim must overlap the exterior finish by at least 2” to prevent wind-driven rain from entering the building envelope.

2) Exterior finish should be Caulked at the back of the jamb to help maintain the air barrier.

Question 4

What type of caulking is used to seal the interior casing?

Answer 4

Latex caulking

Question 5

What type of insulation is used to insulate around doors?

Answer 5

Expanding polyurethane insulation

Question 6

When using rain screen, what is used to protect the wood frame?

Answer 6

Wrap the exterior of the opening with a peel & stick waterproof membrane

Question 7

How is the air barrier made airtight at the inside of a door opening?

Answer 7

Seal the joint with acoustical sealant

Question 8

How are the door frames braced when they are installed prior to the brickwork in masonry construction?

Answer 8

brace & support the door frame in such a way that it does not interfere with the installation of the masonry

Question 9

What special precautions must be taken when installing a wooden frame without the door?

Answer 9

Head jamb level, side jambs, plumb & paralell

Question 10

What is done to improve the fire resistance of steel jambs?

Answer 10

Fill with grout after installation

Question 11

How are steel jambs attached to wood frame construction?

Answer 11

Fastening is done by screwing through the face of the metal frame

Question 12

Why is a plywood strip used under the mounting brackets for the vertical track of a sectional overhead door?

Answer 12

The drywall finish would crush under the load of the brackets

Question 13

What is used to allow the number of rotations of the torsion spring to be counted?

Answer 13

Mark the spring with a chalk line

Question 14

Why is installing a sectional overhead door dangerous?

Answer 14

Torsion spring used with these doors is very strong.

Question 15

The outside of an interior door is the side of the door that is closest to the exit of the building, true or false?

Answer 15

True

Question 16

Exterior RO size?

Answer 16

Width + 2.5
Height + 3

Question 17

Exterior Double door RO?

Answer 17

Width x 2 + 3”
Height + 3”

Question 18

Astragal is typically what size?

Answer 18

.75 inches

Question 19

Headjamb should be sized at:

Answer 19

Door widths plus 3/16th

Question 20

Gap between door and jamb should be:

Answer 20

3/32”

Question 21

On a wooden door jamb, where could you hide screws?

Answer 21

behind the hinges or weather stripping

Question 22

Three shims:

Answer 22

Top, bottom, and one at the position of latch

Question 23

fastening nails to casing:

Answer 23

20” OC

Question 24

What is the main cause of heat loss?

Answer 24

Air movement through the building envelope

Question 25

All wooden frames installed into concrete must be treated with

Answer 25

wood preservative

Question 26

Side jambs in concrete are installed by

Answer 26

nailing into placed wooden blocks or concrete anchors

Question 27

how do you join the jamb to the concrete?

Answer 27

backer rod and acoustical sealant

Question 28

after the trim is installed on the door in concrete, you must seal the joints to the

Answer 28

jamb, drywall, and concrete

Question 28

after the trim is installed on the door in concrete, you must seal the joints to the

Answer 28

jamb, drywall, and concrete

Question 29

In wet climates, how do you seal a door frame?

Answer 29

Wrap the exterior of the opening with a peel-and-stick waterproof membrane. Overlap with two layers of 30-minute sheathing paper. Lap the paper in a shingle-like fashion. Install 1x2 from the 3/4 air space behind the exterior finish