Chapter 11 - Interior Construction Flashcards
________ are the most common construction element for both residential and commercial interior design.
Partitions
Three most frequently used (sorta-finish) materials for partitions:
- Gypsum wallboard
- Lath and plaster
- Masonry
Out of gyp bd, plaster, and masonry, what is least specified by interior designers
Masonry
What is gypsum wallboard?
gypsum core sandwiched between heavy paper or other materials
Typical gypsum wallboard sizes:
4’ wide
8, 10, 12 and 14 feet tall
Typical thickness of gyp bd (commercial and residential)
commercial: 5/8” residential: 1/2”
(1/4” on curved surfaces)
How is gypsum wallboard applied to wood or metal framing?
by nailing it or screwing it
How are gypsum board joints finished?
embedding paper or fiberglass tape in a special joint compound and allowing it to dry. Additional layers of joint compound are added and sanded after each application to give a smooth, finished wall surface.
What is the standard for types of finishes on gyp bd?
GA-214, Recommended Levels of Gypsum Board Finish| Levels 0-5
Which gypsum board level requires the most work and which requires the least work?
Level 0- requires no taping, finishing, or accessories
Level 4 - Three coats of joint compound are used.
Level 5 - added skim coat of joint compound over the entire surface. This level is used where gloss, semigloss, enamel, or non-textured flat paints are used.
Typical framing for residential partitions?
wood studs| 2”x4” and 2”x6”
Typical framing for commercial partitions?
metal studs
Typical metal stud depths
1 5/8”
2 1/2”
3 5/8”
4”
6”
Hat-shaped furring channels are used for:
ceiling framing and to fur out from concrete or masonry walls if the walls are uneven
Wood furring strip dimension
1”x2”
Why are resilient channels used?
to improve the acoustical properties of a wall by isolating the wallboard from rigid attachment to the framing
Metal stud spacing for residential and commercial
16” O.C. Resi| 24” O.C. Commercial
What should be used on outside (or exterior) gypsum corners?
cornerbead
What are the four types of cornerbeads?
LC bead
L bead
U bead
LK bead
Typical residential partition? (stud type, stud spacing, and wallboard type)
2”x4” Wood Stud
16” O.C.1 layer of 1/2” gyp. bd.
Typical commercial partition? (stud type, stud spacing, and wallboard type)
2 1/2” or 3 5/8” Metal Stud
24” O.C.
1 layer of 5/8” Gyp. Bd.
How to create a 1-hr fire-rated partition?
How to create a 2-hr fire-rated partition?
1 Hr- 1 layer of 5/8” Type X sheetrock on either side of a slab to slab partition
2 Hr- 2 layers of 5/8” Type X sheetrock on either side of a slab to slab partition
What is Glass Reinforced GypsumAKA Fiberglass Reinforced GypsumAKA Glass-Fiber-Reinforced Gypsum
High-strength, high-density gypsum reinforced with continuous-filament glass fibers Used for column covers, arches, coffered
What is plaster?
Finish material made from various types of cementing compounds, fine aggregate, and water. It is applied over several kinds of base materials in one to three coats to form a smooth, level surface.
Two common types of plaster construction
- traditional method using metal lath that is attached to wood
- uses gypsum board lath
Plaster is very expensive because of how labor intensive it is. What are two reasons why it is still used?
- curved surfaces
- hard, abrasion-resistant surface is needed it can also be used as a base for ceramic tile in wet areas ornamental plaster casting and plaster molding are also used in restoration work
Masonry is a general term that includes
brick, concrete block, glass block, structural clay tile, among others
Masonry is normally part of the architect’s scope. However, sometime’s designers will need to specify non-loadbearing concrete block partitions. Why are these used?
They’re strong, durable, fire-resistant partitions
Where are concrete block partitions used?
in institutional applications such as school or colleges or where heavy use is expected.
There are two jambs on either side of a door. What are they called and which is which?
Hinge jam (side with the hinge or pivot)
Strike jam (side where the door closes)
Two types of doors
Flush Doors and Panel Doors
Are panel doors fire rated?
no
Doors are classified according to their _____
method of operation (or how they open and close)
example: swinging door (the most common type)
Hollow core doors vs solid core doors
Hollow core are made of one or three plies of veneer on each side of a cellular interior. The frame is made of solid wood with larger blocks of solid wood where the latching hardware is located.
Solid-core doors are made with a variety of core types depending on the functional requirements of the doors. The core can be made of
particleboard, stave core (solid blocks of wood), or mineral core for fire-rated doors
Solid-core doors are used for _____________.
their fire-resistive properties, as acoustical barriers, for security, and for their superior durability.
Fire rating options for solid-core doors
20
45
90
Thicknesses of solid-core doors
1 3/4”
Standard door widths
2-0
2-6
2-8
3-0