Week 7 wood wall systems

Question 1

What is platform framing?

Answer 1

Platform framing is a light wood frame having studs only one story high, regardless of the stories built, each story resting on the top plates of the story below or on the sill plates of the foundation wall.

Question 2

What is the maximum unsupported height and maximum spacing of:

1. 2x4 studs
2. 2x6 studs

Answer 2

1. 2x4 have a maximum unsupported height of 14’ and a maximum spacing of 16”o.c. except when supporting only a ceiling and roof, 2x4 studs not more than 10’ high may be spaced 24”o.c.
2. 2x6 studs have a maximum unsupported height of 20’ and a maximum spacing of 24” o.c. except when supporting 2 stories and a roof, space 2x6 studs not more than 16” o.c.

Question 3

Over lap top plates at corners and intersections with other partitions; facenail, two 16d.

Double 2 by top plate; facenail 16d @ 16” o.c. staggered.

End nail top plate to studs, two 16d

Offset end joint in top plates at least 48”; facenail, two 10 d.

True or false?

Answer 3

True

Question 4

Rim joists should be toenailed to ___ _____@____ o.c.

Answer 4

Rim joists should be toenailed to top plate at 6” o.c.

Question 5

How far does wood construction have to be from the grade?

Answer 5

6”

Question 6

Support should be provided for interior loadbearing partitions. True or false?

Answer 6

True, beam or wall support

Question 7

Oversized headers may be used to eliminate what?

Answer 7

Short cripples

Question 8

Wall sheathing should be applied_____, and stagger____joints

Answer 8

Wall sheathing should be applied horizontally, stagger vertical joints

Question 9

For gypson sheathing,

Exterior siding must be____to____ frame because______is not a nailable base

Answer 9

Exterior siding must be nailed to stud frame because gypsum board is not a nailable base.

Question 10

Rated Panel sheathing:
For use as a nailable base for exterior siding:
3/8" minimum or 16" stud spacing
and 1/2" minimum for 24" stud spacing
True or false?

Answer 10

True

Question 11

Rigid Foam Plastic Sheathing:

Exterior siding must be nailed directly to ______

Answer 11

stud frame

Question 12

Rigid foam plastic sheathing:

Rigid insulation cannot be used as ______; use ______ or 1x4 let into____

Answer 12

Rigid insulation cannot be used as corner bracing; use steel strap or 1x4 let into studs

Question 13

Rigid foam plastic sheathing:

Protect exposed surfaces w/_____ or _____

Answer 13

Rigid foam plastic sheathing:

Protect exposed surfaces w/ treated plywood or stucco

Question 14

Wood columns may be ____, ____, or ____.

Answer 14

Solid, built up, or spaced.

Question 15

What should be considered when selecting a wood column?

Answer 15

Lumber species;
structural grade
modulus of elasticity
allowable compressive, bending, and shear stress values permitted for intended use.

Question 16

WOOD COLUMNS AND POSTS ARE LOADED_____ IN COMPRESSION

Answer 16

Axially

Question 17

6x6 wood column may support up to 500sf of floor and roof area. true or false?

Answer 17

True

Question 18

Post and beam construction uses a framework of ____ posts and _____beams to carry both_____ and ____loads. The ____ supporting the floor and roof systems transmit their loads to ____ or ____ that, in turn, carry the loads down to the _______

Answer 18

Post and beam construction uses a framework of vertical posts and horizontal beams to carry both floor and roof loads. The beams supporting the floor and roof systems transmit their loads to posts or columns that, in turn, carry the loads down to the Foundation system

Question 19

The skeleton frame of posts and beams is often left____to form a visible___within which nonbearing wall panels, doors, and windows are integrated.

Answer 19

The skeleton frame of posts and beams is often left exposed to form a visible framework within which nonbearing wall panels, doors, and windows are integrated.

Question 20

When the post-and-beam frame is left exposed, as is often the case, careful attention must be paid to the _____ and ___ of wood used, the detailing of ___, especially at ____ to ____ and ___ to ____ connections, and the quality of ______

Answer 20

When the post-and-beam frame is left exposed, as is often the case, careful attention must be paid to the species and grade of wood used, the detailing of joints, especially at beam to beam and beam to post connections, and the quality of workmanship.

Question 21

How are light gauge steel studs manufactured?

Answer 21

Light gauge steel studs are manufactured by cold-forming sheet or strip steel. The cold-formed steel studs can easily be cut and assembled with simple tools into a wall structure that is lightweight, noncombustible, and dampproof. Metal stud walls may be used as nonloadbearing partitions or as bearing walls supporting light gauge steel joists.