Final Unit II

Question 1

What are the three types of partition framing?

Answer 1

Wood, Metal and Masonry

Question 2

Wood Framing is somewhat restricting but a good overall product. Why?

Answer 2

Because it has limited use with building codes and using fire treated wood can be expensive.

Question 3

What are metal framing units generally composed of?

Answer 3

Cold- metal formed studs that are found in most UL assemblies

Question 4

Masonry framing is comprised of what ?

Answer 4

Wood or metal furring strips

Question 5

Plaster is a generic term for what?

Answer 5

A cement based substance

Question 6

How is plaster applied?

Answer 6

Directly to a solid surface or a group of bases called a lathe.

Question 7

What are the different types of plaster?

Answer 7

Gypsum, Lime and Portland Cement (Stucco)

Question 8

3 materials that lathe is usually made of?

Answer 8

Metal, Gypsum and Veneer with wood veneer being the most common in the past

Question 9

What is lathe usually made of today?

Answer 9

Expanded metal, preformed gypsum

Question 10

How is expanded metal lathe made?

Answer 10

Thin sheets of galvanized steel that are slit and stretched to produce a mesh.

Question 11

Benefits of Gypsum based plaster?

Answer 11

Workable, Inexpensive and good Sound and fire resistance

Question 12

Two categories of plaster?

Answer 12

Base-coat and finish coat

Question 13

How workable is stucco and how many coats is it applied ?

Answer 13

Less workable than gypsum plaster, shrinks and needs control joints, and is applied in 3 coats over metal lathe or 2 coats over concrete or masonry

Question 14

Why is gypsum board the most commonly used interior system?

Answer 14

Because it is easier to install than most, most inexpensive and comes in convenient sizes.

Question 15

What are the uses of gypsum board?

Answer 15

Wallboard, Plasterboard and Drywall.

Question 16

What are the Types of Gypsum Board?

Answer 16

Regular, Water-Resistant, Type X, Foil-Backed, Coreboard, High-Impact and Mold Resistant.

Question 17

How is Gypsum Board Installed?

Answer 17

-Install partition framing
MEP Rough in
-Hang the drywall
-Finish gypsum drywall joints, edges and corners

Question 18

What is the finishing process for gypsum board?

Answer 18

Corner beads, metal trim
tap & bed w/ 1st coat and tape
2nd coat
finish w/3rd and final coat w/ sanding

Question 19

What are the levels of finish for Drywall?

Answer 19

Level 0-5

Question 20

Level 1 finish means ?

Answer 20

The joints have been taped

Question 21

Level 2 finish means?

Answer 21

Joints taped, tape & fasteners are covered with a compound

Question 22

Level 3 Finish requires what?

Answer 22

A second coat of compound to be applied

Question 23

What is a level 4 drywall finish?

Answer 23

There is a 3 coat system of compound on the wall.

Question 24

What is a level 5 finish?

Answer 24

3 coat+ thin finish applied to the entire surface. The skim coat is applied

Question 25

Why is furring needed when there is a Gypsum on CMU block system?

Answer 25

Because furring is needed to allow for a flat surface over irregularities in the masonry as well as creating a concealed space for installation/wiring and plumbing.

Question 26

What are the types of furring strips that are used on a Gypsum -CMU Block system?

Answer 26

Z-furring channel, hat shaped metal furring and adjustable furring brackets.

Question 27

Common types of wall and partition facings?

Answer 27

The most common type is paint, but can include tile, stone (granite, limestone, marble and slate) as well as wood/paneling

Question 28

How sustainable are gypsum products?

Answer 28

Not renewable but very plentiful but - bc it has to be mined is has some negative environmental impacts. - Gyp facing paper is made from recycled material and the waste is quite large - Air quality issues but have low emissions

Question 29

What is the cutaway process for plaster?

Answer 29

Metal Lath, scratch coat, brown coat, finish coat or Gypsum lath, brown coat, and finish coat