Ch.11 Interior construction Flashcards
The most common construction element for both residential and commercial interior design.
Partition
What are the three most frequently used Materials for partitions
Gypsum wallboard, lath and plaster, and masonry
Consists of a gypsum course sandwiched between heavy paper or other materials. It is factory for them to do standard size sheets ready for dry application onto framing. Because if it’s many advantages, it is the most common material used for construction in partitions in both residential and commercial construction.
Gypsum wallboard
What are the advantages of using gypsum wallboard
Low installed cost, quick and easy installation, fire resistance, sound control capability, easy availability, and versatility, ease of finishing and decorating, and ease of installation of doors and other openings
What are the sizes available for a gypsum wallboard sheets
4 feet wide and eight, 10, 12, and 14 feet in length
What thickness do gypsum wallboard sheets come in
1/4 inch to 5/8 inches there are also special 1 inch thick core board used for shaft enclosures and it is manufactured in 2 foot widths. There’s also a special 3/4 inch thick product that carries a two hour fire rating.
What thickness of gypsum wallboard is most commonly used in commercial construction
5/8 inches
What thickness of gypsum wallboard is most commonly used in residential construction
1/2 inch
What thickness of gypsum wallboard can sometimes be used for application such as furred down walls in commercial settings
1/2 inch
What thickness of gypsum wallboard is used for forming curved surfaces and providing new finishes over old wall and ceiling surfaces.
1/4 inch
What thickness of gypsum wallboard is used in some double layer applications or when wallboard is applied over other finished walls and remodeling work. Double layer applications are used when additional fire resistance is required or for extra acoustical control between rooms.
3/8 inch
What is the most common wallboard edge type on the face side along the long dimension of the panel
Tapered edge
What is the most common edge type of gypsum wallboard at the ends
Square edges
What is the benefit of using tapered edges in gypsum wallboard applications
Tapered edges allow for application of reinforcing tape and joint compound without causing bulges at the joints.
What type of gypsum wallboard is used for fire rated partitions
Type X
What type of gypsum wallboard is used for vapor barriers, Water resistant for use behind tile and in other moderately moist conditions, backing board for two layer applications, and pre-decorated with vinyl wall covering already applied.
Foil backed
How is gypsum wallboard applied
Gypsum wallboard is applied by nailing you’re screwing it to wood or metal framing, or with mastic when applying it to smooth, dry concrete or masonry walls or to the base layer of wallboard. The joints are finished by embedding paper or fiberglass tape in a special joint compound and allowing it to dry. Additional layers of joint compound or at it and send it after each application to give a smooth, finished wall surface. Various types of textured finishes can be applied, or the surface can be left smooth for the application of wallpaper, vinyl wall covering, or other finishes.
What does GA stand for
Gypsum association
What level of gypsum wallboard requires no taping, finishing, or accessory‘s
Type 0
What type of gypsum wallboard requires joints in interior angles to have tape in bedded in joint compound with the surface free of excess joint compound. This level is used for plenums above ceilings and other areas not normally open to view.
Level 1
What level of gypsum wallboard is similar to level two, except it two coats of joint compound are used to the surface is free of tool marks and ridges. This level is used where the surface will receive heavy or medium textured finishes or where heavy grade wall coverings are to be applied
Level 3
What level of gypsum wallboard is similar to level three except it three coats of joint compound are used. This level is used for light textures or wall coverings will be applied or where economy is of concern. Gloss, semi gloss, and enamel paints are not recommended over this level of finish.
Level 4
What level of gypsum wallboard similar to level for excepted a thin skim coat of joint compound is applied over the entire surface. This level is used for a gloss, semi gloss, animal, or non-textured Black Panther specified where where severe lighting Condition exist.
Level 5
What types of framing is typically used in residential construction
2 x 4 and 2 x 6 wood studs
Why are metal framing studs typically used for commercial construction
Metal studs are non-combustible and easier to install. Metal framing consist of white gauge steel studs set in floor and ceiling runners
What are the standard depth of steel studs
1 5/8 inches, 2 1/2 inches, 3 5/8 inches, four, and 6 inches
What type of furring channels are used for ceiling framing Anthofer out from concrete or masonry walls if the walls are uneven or if additional depth is needed for electrical outlets or insulation
Hat shaped
What type of channels are used to improve the acoustical properties of a wall by isolating the wallboard from rigid attachment to the framing
Resilient channels
What is the most commonly used stud size which is sufficient for normal ceiling heights and slab to slab partitions and allows enough room for electrical boxes and small pipes
2 1/2 inches
What is the normal spacing for metal studs used in all construction
16 or 24 inches on center. The narrower measurements are used for residential construction.
What is used for all exterior corners not otherwise protected, and various types of edge trim
A corner bead
Edge trim requiring finished with joint compound. It has a back flange, so it must be fitted over the edge of the wall board before the wall board is fastened to the substrate
LC bead
It’s trim without a back flange, good for insulation after the wall board has been installed. It requires finishing with joint compound.
L bead 
Edge trim in which the edge of the metal is noticeable. It is sometimes called J metal by contractors. It does not require finishing with joint compound.
U bead
Edge trim for use with various thicknesses of wallboard in it kerfed jamb also known as one with a small slot cut. It requires finishing with joint compound
LK bead
Describe the common construction of a wall for residential construction
2 x 4 studs 16 inches on center, covered with one layer of 1/2 inch wallboard on either side
Describe the common commercial construction of walls
2 1/2 inches or three and five8s inch metal studs spaced 24 inches on center. In commercial work, the standard partition is only built up to the suspended ceiling.
What are slab to slab partitions used for
Fire rating
How many hours of fire rating does a slab to slab partition with a single layer of five eights inch type X gypsum wallboard receive
One hour
When partitions extend to the structure above and commercial buildings such as slab to slab partitions what is required in order to prevent the wall from being damaged if the structural for above deflects
A slip joint
The process whereby power generating plants remove polluting gases from their stacks to reduce omission of harmful materials into the atmosphere. Using this by product allows the efficient use of reuse material that would otherwise have been discarded
Flue gas desulfurization
What does GRG stand for
Glass reinforced gypsum
A broad Plaza products manufactured from high strength, high density gypsum reinforced with continuous filament glass fibers or chopped glass fibers. These products are also known as fiberglass reinforced gypsum and glass fiber reinforced gypsum
Glass reinforced gypsum
What are the other names for glass reinforced gypsum AKA GRG
Fiberglass reinforced gypsum FRG and glass fiber reinforced gypsum GFRG
What is GRG used for
I Decorative elements just calling covers, arches, coffered ceilings, ornate moldings, light troughs, and trim.
How is GRG made
They are pre-manufactured products made by pouring GRG into molds. After setting, the products are shipped to the job site for installation and final finishing. They can be finished with any type of material that can be put on plaster or gypsum wallboard.
A finished material made from various types of cementing compounds, find aggregate, and water. It is applied over several kinds of base materials in 1 to 3 coats to form a smooth, level surface.
Plaster
When plaster is required to be light weight in fire resistance what compounds make it up
Vermiculite and perlite
What type of plaster has a high resistance to abrasion and water penetration
Keenes cement
What type of plaster must be used as a base coat keenes cement or as a backing for tile walls
Portland cement
Describe the traditional method using metal lath for plaster construction
Metal lath is attached to wood or metal studs and serves as a base for plaster
What are the types of metal laths available
Expanded diamond mesh, paper, back to diamond mesh, flat rib lath, and high rib lath
What is the first coat of plaster called
The scratch coat
In standard plastering, what is the second coat called
The brown coat
What is the purpose of the brown coat in standard plastering
To level the surface
In standard plastering, what is the final coat called
The finish coat
What is the purpose of the finish coat in standard plastering
The finish coat provides final leveling in the desired texture to the surface.
How thick is the scratch coat in standard plastering
1/4 to 1/2 inches thick
How thick is the brown coat in standard plastering
1/4 inches thick
How thick is the finish coat in standard plastering
1/8 inches thick
What type of plastering is used with gypsum wallboard lathe
Veneer plastering
How many coats of veneer plaster are required
One
When is plaster used over gypsum wallboard
When curved shapes are required and where hard, abrasion resistant surface is needed. Plaster must also be the base for ceramic tile in areas subject to continual dampness.
The general term that includes brick, concrete block, glass block, structural clay tile, terra-cotta, and gypsum block. In most cases, this material is part of the architectural design of the building and part of the architects work.
Masonry
What is concrete block made of
Cement, water, and various types of aggregate, including gravel, expanded shale or slate, expand its slag or pumice, or limestone cinders.
What are the sizes of concrete block
It’s size is based on a nominal 4 inch module with actual dimensions being 3/8 inches less than the nominal dimension to allow for mortar joints. One of the most common size is 8” x 8” x 16” unit, which is actually 7 5/8 inches wide and high and 15 5/8 inches long. Common nominal thicknesses are four, six, eight, and 12 inches.
What is manufactured is a hollow unit with a clear, texture, or pattern face. It is a popular choice for interior use when a combination of white transmission, privacy, insecurity is required. It is manufactured in a nominal thickness of 4 inches and feet size of 656, 8 x 8, 12 x 12, and 4 x 8. Eight.
Glass block
How are glass block walls laid
In stack bonds with mortar and horizontal and vertical reinforcement in the joints. Because of the coefficient of expansion of glass in the possibility of deflection of floor structure expansion joints around the perimeter of the glass walls must be provided.
Joints aligned rather than staggered
Stack bond
Can glass block be load bearing
No
What are glass block panel sizes limited to
250 ft.² or 25 feet in any dimension. Each panel must be supported with suitable structure both horizontally and vertically and with expansion joints provided at the structural support points
Consist of a system of individual components that can be quickly assembled, disassembled, and reused with nearly total so legibility. They differ from operable partitions and that they are intended to remain in place as standard partitions, well operable partitions active special doors to open and close a space frequently.
Demountable partition
What are the standard four components to demountable partitions
Floor runners, ceiling runners, stud sections with clips to hold panels, and prefinished gypsum wallboard panels
What are the standard sizes for Demountable partitions
Panels are usually 24 inches or 30 inches wide to work with common building planning models of 4 feet or 5 feet.
The first panel must be placed before the second panel, which must be placed before the third panel, and so on. When the partition is taking down, the reverse order must be followed.
Progressive system
Panels are independent and can be removed and replaced individually.
Non-progressive system
What are the three major components of the door system
The door itself, the frame, and the hardware
What are the common parts of a door opening
The head, jam, door leave, strike side of the door, and sill or threshold
What is the door jamb called that is on the side where the hinge or pivot is installed
Hinge jamb
Where is the door jamb called where the door closes
Strike jamb
What is the most common type of door material in both residential and commercial construction
Wood
What is the only type of door that is acceptable as a required exit door or an egress door
swinging door
Find the top track and can be used to wear space is limited. However, they are awkward to operate and should only be used for traffic is limited. door
Pocket sliding door
Hung from the top track and are generally used for closets only.
Bifold sliding doors
Are also used for closets. Unlike bypass sliding doors, which can only be open half of the doorway, this type of door allows for full access.
Bi folding doors
Often used to divide spaces or close very wide openings
Accordion folding door
Made of thin, flat veneers laminated to various types of pores. They are either hollow core or solid core
Flush wood door
Made of one or three plies of veneer on either side of the cellular interior. The frame is made of a solid wood with larger blocks of solid wood where the latching hardware is located. These types of doors are used where only light use is expected and cost is a consideration. They have no fire resistive capabilities
Hollow core door
Made with a variety of core types depending on the functional requirements of the door. Kors maybe particleboard, stave core, or mineral or for fire rated doors. are used for fire resistive properties, as acoustical barriers, for security, and for their superior durability. These types of doors are available with fire ratings of 20 minutes, 45 minutes, or 90 minutes.
Solid core doors
Constructive solid pieces of wood frame various types of panels. Any number of panels can be constructed, and they can be a traditional raised panel style or simple flat panels.
Panel door
Are the standard width of doors
2’, 2’4”, 2‘6“, 2‘8“, and 3 feet.
What are the standard heights of doors
6‘8“ and 7 foot
How thick are hollow core doors
1 3/8 inches
How thick are solid core doors
1 3/4 inches
What types of materials are used for constructing door frames
Wood, steel, and aluminum
What types of fire ratings are available for wood door frames
20, 30, and 45 minutes
What material is required for a one hour rated door frame
Steel
Type of metal door that has a single smooth surface on both sides
Flush door
Type of metal door the contains one or more glass lights.
Sash door
Type of metal door that has an opening with metal slats to provide ventilation.
Louvered door
What types of metals are used for metal doors
Steel, stainless steel, aluminum, and bronze
What is the most common commercial door finish and type
Steel with a painted finish
What type of steel is most commonly used in steel door construction
16 gauge but 18 gauge can be used for lighter purposes
What is used in steel doors to provide sound deadening qualities
Mineral wool or other materials
What are the most common width for metal doors
2 foot, 2 foot four, 2 foot six, 2 foot eight, 3 feet, 3 foot four, 3 foot six, 3 foot eight, and 4 feet
What are the standard Heights for metal doors
6 foot eight, 7 foot, and 8 foot
What is the standard thickness for a metal door
1 3/4 inches
What is commonly used as stile and rail material for glass doors and has door frame material for both aluminum glass doors and wood doors
Aluminum
Most commonly used in interior construction to frame with doors when a lightweight, easily assembled frame is required
Aluminum door frame
What type of frame is used when a complex frame profile is required
Aluminum
What is the standard configuration of an aluminum door frame
Most are double rabbeted shape with a continuous stop, similar to a steel door frame. One noticeable difference is that aluminum frames have sharp corners, as opposed to the slightly rounded corners of steel frames. This is because aluminum frames are extruded
What is the fire rating of an aluminum door frame
20 minutes