IRC Flashcards
(131 cards)
1
Q
R102 Applicability
A
Where there is conflict between a general requirement and a specific requirement the MOST RESTRICTIVE shall govern
2
Q
R104 Duties & Powers of the Building Official
A
The building official is hereby authorized and directed to enforce provisions of this code.
3
Q
(Section R104)
The ____________ shall keep official records of applications received and such records shall be retained in the official records for the period required for the retention of public records
A
Building Official
4
Q
Sec R104
Used materials, equipment and devices shall not be reused unless _____________.
A
Approved by the building official
5
Q
R105 Permits
Work exempt from permit includes:
A
Fences not over 7’ high
Sidewalks and driveways
Prefabricated swimming pools not deeper than 24”
Swings & playground equipment
6
Q
R105 Where emergency equipment replacement or repairs are needed when must the permit application be submitted to the building official?
A
The next working business day
7
Q
Time limit of an application - deemed abandoned after _____ days
A
180
8
Q
Expiration of a permit
A
If work is not commenced within 180 days of issuance or if work is suspended or abandoned for a period of 180 days the permit is deemed invalid
9
Q
Section R109-Inspections
The foundation inspection shall be made after:
And before:
A
After poles and piers are set or trenches or basement areas are excavated and any reinforcing steel is in place
Before the placing of concrete
10
Q
R109 Inspections
Fire Resistance Rated Construction Inspection should be conducted when?
A
After lathing or gypsum board or panel is in place but before plaster is applied
11
Q
Sec R202 Definitions:
______________________ - a material device or construction installed to restrict the movement of air within spaces of concealed areas such as crawl spaces and attics
A
[RB] DRAFT STOP
12
Q
R202 Definitions
_________________ - piping, ducts, vents, control devices and other components of systems other than appliances that are permanently installed to provide control of environmental conditions for buildings
A
EQUIPMENT
13
Q
Sec R301 Design Criteria
_____________ ____________ -B, C, or D.
Urban and suburban areas, wooded areas or other terrain with numerous other closely spaced obstructions the size of single family dwellings or larger B shall be assumed
A
Exposure Category
14
Q
_____ _____- the actual weights of materials and construction
A
Dead Load
15
Q
Parapets- where Roof surfaces adjacent to the wall or walls are at the same elevation, the parapet shall not extend less than _____________ above the roof surfaces.
A
30 in.
16
Q
Parapets shall have the same fire resistance rating as the __________ ______, and on any side adjacent to a roof surface shall have noncumbustible faces for the uppermost ___ inches
A
Supporting wall/s
18 in.
17
Q
Opening Protection- openings from a _______ directly into a room used for sleeping shall not be permitted. Other openings between the _________ and residence shall be equipped with solid wood or steel doors not less than 1-3/8in thick
A
Garage
18
Q
Flame Spread Index- Wall and Ceiling finishes shall have a flame spread index of not greater than ____.
A
200
19
Q
Smoke-Developed Index- Wall and ceiling finishes shall have a smoke-developed index of not greater than ____.
A
450
20
Q
Insulation - Insulation materials including facings such as vapor retarders and vapor-permeable membranes installed within floor/ceiling assemblies, roof/ceiling assemblies, wall assemblies, crawl spaces and attics shall have a flame spread index not to exceed ___ with an accompanying smoke-developed index not to exceed ____.
A
25, 450
21
Q
True or False
Loose-Fill insulation material shall not be used as fireblock
A
True
22
Q
Draftstopping - in combustible construction where there is usable space both above and below the concealed space of a floor/ceiling assembly, draftstops shall be installed so that the area of concealed space does not exceed _________ sqft
A
1,000
23
Q
Draftstopping materials shall not be less than ___ in. thick gypsum board, ___ in. thick wood structural panels or other approved materials adequately supported.
A
1/2, 3/8
24
Q
Combustible insulation shall be separated a minimum of __ inches from recessed luminaries, fan motors, and other heat-producing devices.
A
3
25
All habitable rooms shall have an aggregate glazing area of not less than _% of the floor area of such rooms. The minimum openable area to the outdoors shall be _% of the floor area being ventilated.
8, 4
26
Bathrooms and similar rooms shall be provided with aggregate glazing area in windows of not less than __ sq. Ft. half of which must be openable.
3
27
True or False
Exception: Glazed areas in bathrooms are not required where artificial light and a local exhaust system are provided. Exhaust air shall be exhausted directly outdoors.
True
28
Mechanical and gravity outdoor air intake openings shall be located a minimum of __ feet from any hazardous or noxious contaminant such as vents, chimneys, plumbing vents, streets, alleys, parking lots and loading docks.
10
29
Habitable rooms shall have a minimum floor area of not less than ___ square feet.
Exception: ___________
70
Kitchens
30
Habitable rooms shall be not less than __ feet in any horizontal direction.
Exception: _________
7
Kitchens
31
Habitable rooms, hallways, and portions of basements containing these spaces shall have a minimum ceiling height of __ .
Bathrooms, toilet rooms and laundry rooms shall have a minimum ceiling height of __.
7’
6’8”
32
Bathtubs and shower floors and walls above bathtubs with installed shower heads and in shower compartments shall be finished with a nonabsorbent surface extending to a height not less than ____ above the floor.
6 feet
33
Glazing in an individual fixed or operable panel that meets all of the following conditions shall be considered a hazardous location:
The exposed area of an individual panel is larger than __ sq ft.
9
34
Glazing in walls, enclosures or fences containing or facing hot tubs, spas, whirlpools, saunas, steam rooms, bathtubs, showers and indoor or outdoors swimming pools where the bottom exposed edge of the glazing is less than ___ inches above any standing or walking surface shall be considered a hazardous location.
60
35
Glazing adjacent to stairs and ramps - Where the bottom edge of the glazing is less than ___ inches above the plan of the adjacent walking surface of stairways, landings between flights of stairs and ramps shall be considered a hazardous location.
Exception: where a rail is installed ___ to ___ inches above the walking surface that is capable of withstanding a horizontal load of ___ lbs per linear foot without contacting the glass.
36 inches
34-38 inches
50lbs
36
Glazing adjacent to the bottom of a stair landing that is less than ___ inches above the landing and within ___ inches horizontally of the bottom tread shall be considered a hazardous location.
36, 60
37
Carports shall not be open on less than ________ sides. Carport floor surfaces shall be of approved noncombustible material.
Two
38
Basements, habitable attics and every sleeping room shall have not less than _____ operable emergency escape and rescue opening.
One
39
Emergency escape openings shall have a sill height of not more than ____ inches.
44
40
True or False:
Basements used only to house mechanical equipment and not exceeding a total floor area of 200 sq feet do not require an emergency escape opening.
True
41
All emergency escape and rescue openings shall have a minimum net clear opening of _____ sq. feet.
Exception: Grade floor openings shall have a minimum net clear opening of ___ sq. feet.
5.7
5
42
R310 Emergency Escape & Rescue Openings:
The net clear opening height shall be ___ inches.
The net clear opening width shall be ___ inches.
24
20
43
The minimum horizontal area of a window well shall be __ sq. feet.
9
44
Window wells with a vertical depth greater than ___ inches shall be equipped with a permanently affixed ladder or steps usable with the window in fully open position.
44
45
The egress door shall be side-hinged and provide a minimum clear width of ___ inches. The minimum clear height of the door opening shall be not less than ___ inches.
32”
78”
46
There shall be a landing or floor on each side of each exterior door. The width of each landing shall be not less than __________________________. Each landing shall have a minimum dimension of ___ inches measured in the direction of travel.
The door served
36”
47
The minimum width of a hallway shall be not less than __ feet.
3
48
Stairways shall be not less than ___ inches in clear width at all points above the permitted hand rail height and below the required head room height.
36”
49
Hand rails shall not project more than ___ inches.
4.5”
50
The minimum headroom in all parts of a stairway shall be not less than _____.
6’8”
51
A flight of stairs shall not have a vertical rise larger than ____ inches between floor levels or landings.
151
52
The maximum riser height shall be not more than _____ inches.
7-3/4
53
The greatest riser height within any flight of stairs shall not exceed the smallest by more than ____ inches.
3/8” (9.5mm)
54
The minimum tread depth shall be ___ inches.
10
55
Winder treads shall have a minimum tread depth of ___ inches at any point within the clear width of the stair.
6” (152mm)
56
A nosing not less than ____ inch but not more than ____ inches shall be provided in stairways with solid risers.
3/4”
1-1/4”
57
True or False.
Handrails shall be provided on at least one side of each continuous run of treads or flight with four or more risers.
True
58
Handrail height shall be not less than ___ inches and not more than ___ inches measured vertically from the sloped plane adjoining the tread nosing.
34
38
59
Handrails adjacent to a wall shall have a space of not less than ____ inches between the wall and handrails.
1-1/2”
60
Ramps shall have a maximum slope of __ units vertical in __ units horizontal (___% slope)
1, 12
| 8.3%
61
Guards shall be required along all open-sided walking surfaces including stairs, ramps and landings that are more than ___ inches above the floor or grade below.
30
62
Guards at open-sided walking surfaces including stairs, porches, balconies or landings shall be not less than ___ inches high above the adjacent walking surface.
36
63
In dwelling unites where the sill of an operable window is located less than ___ in. above the finished floor and greater than ___ in. above the surface grade below on the exterior of the building, the opening shall not allow passage of a ___ in. diameter sphere.
24”
72”
4”
64
_________ __________ are required in the following locations:
- in each sleeping room
- outside each sleeping area in the immediate vicinity of the bedroom
- on each story of the dwelling including basements and habitable attics. Not including crawl spaces and uninhabitable attics. For split levels without an intervening door, one on the upper level will suffice for both if the lower level is less than one full story below.
Smoke alarms
65
True or False.
When alterations, repairs or additions occur where a permit is required, the dwelling unit shall be equipped with smoke alarms located as required for new buildings.
True
66
Smoke alarms shall receive their primary power from ________________________.
The building wiring
67
Protection of _______ against _______ is required in the following locations:
- wood joists or bottom of a wood structural floor closer than 18” or girders closer than 12” to the exposed ground in crawl spaces.
- wood framing members that rest on concrete or masonry exterior foundation walls and are less than 8” from exposed ground.
- ends of wood girders entering exterior masonry or concrete walls having clearances less than 1/2” on tops, sides and bottoms.
- wood siding, sheathing, and wall framing on the exterior of a building having a clearance less than 6” from the ground.
Wood, decay
68
Address identification shall be in ___________ or _____________ letters that are a minimum of ____ in. tall and minimum stroke width of _____ in.
Arabic or alphabetic
4” tall
0.5” width
69
R322 Flood Resistant Construction
Foundations - Buildings and structures erected in coastal high-hazard shall be supported on pilings or columns adequately _____________ to such pilings or columns.
Anchored
70
Coastal High Hazard Area: areas determined to be subject to waves in excess of ___ feet or wave induced erosion.
3 ft
71
Surface drainage shall be diverted to a storm sewer or approved collection point that does not create a hazard. Lots shall be graded to drain surface water away from foundation walls a a minimum of ______ for the first _______
6”
10’
72
The ____________ _____________ shall determine whether to require a soil test to determine the soil’s characteristics at a particular location.
Building Official
73
Instead of a complete geotechnical evaluation, where top or subsoils are compressible or shifting, they shall be _________________ to a depth and width suffocation to ensure stable moisture content in each active zone and shall not be used as fill or stabilized within each active zone by chemical, dewatering or presaturation.
Removed
74
Fasteners used below grade to attach plywood to the exterior side of an exterior basement or crawl space shall be type 304 or 316 _____________ steel.
____________________ steel nails and staples are not permitted.
Stainless
Electro-galvanized
75
Where lumber or plywood is cut or drilled after treatment it shall be treated with ____________ ________________ the with a minimum concentration of ___% copper metal.
Copper naphthenate
2%
76
Footings shall be supported on _________________________________.
undisturbed natural soils or engineered fill
77
Slabs on ground with turn down footings shall have a minimum of ____ No. 4 bar at the top and bottom of the footing.
One
78
Exterior footings shall be a minimum of ___ in. below the undisturbed ground surface.
12
79
The bottom surface of footings shall not have a slope exceeding ___%.
10%
80
Foundation Anchorage:
Wood sole plates at all exterior walls on monolithic shall be anchored to the foundation with anchor bolts spaced a maximum of __ feet on center. Bolts shall be at least ___ in. diameter and extend a minimum of ___ in. into concrete.
6 feet
1/2 in. diameter
7 in. deep
81
Footings for wood foundation: Gravel shall be washed and well-graded. Maximum size stone shall not exceed ___ in.
Crushed stone shall have a max size of ___ in.
3/4”
1/2”
82
Buildings where ave. temp is maintained at a minimum of ____ footings are not required to extend below frost line when protected by insulation.
64*F or 18*C
83
Slump of concrete placed in removable forms shall not exceed ___ in.
6
84
In buildings assigned to seismic design category A, B, or C the minimum yield strength of reinforcing steel shall be ____________ psi.
In buildings assigned to seismic design category D-0, D-1 or D-2 shall be low alloy steel with a minimum yield strength of ____________ psi.
40,000
60,000
85
In seismic category A, B & C the minimum strength of steel reinforcement shall be __________ psi.
40,000
86
In seismic category D0, D1 & D2 a low allow steel is required with a minimum yield of _________ psi.
60,000
87
Use of pier and curtain foundations shall be permitted to support light-frame construction not more than ____ story/ies tall.
2
88
Concrete and masonry foundation walls shall extend above the adjacent finished grade a minimum of ___ in. where masonry veneer is used and ___ in. elsewhere.
4”
6”
89
Backfill shall not be placed against the wall until the wall has sufficient strength and has been anchored to ____________________ or been sufficiently braced to prevent damage by the backfill.
The floor above
90
Rubble stone masonry foundation walls shall have a minimum thickness of ___in.
16”
91
Hollow masonry piers shall be capped with __ in. of solid masonry or concrete.
4
92
Masonry piers supporting girders for interior bearing walls shall have a nominal size of ___ in. and max. height of ___ feet.
Piers supporting exterior bearing walls shall have a nominal size of ___ in. and max. height of ___ feet.
12 in. 10 ft.
12 in. 4 ft.
93
Studs used in foundation walls shall be __x__ members.
2x6
94
Wood sill plates shall be no less than ___x___.
2x4
95
Retaining walls not laterally supported at the top that retain ___ in. of unbalanced fill or retaining walls that exceed ___ in. to soil shall be designed in accordance with an accepted engineering practice to ensure stability against overturning, sliding, excessive foundation pressure and water uplift.
48”
24”
96
R405 Foundation Drainage
Gravel or crushed stone drains shall extend not less than ___ ft. beyond the outside edge of the footing and __ in. above the top of the footing and covered with an approved filter membrane material.
1 foot
6 inches
97
R405 Foundation Drainage
Drainage tiles or perforated pipe shall be placed on not less than ___ in. of washed gravel or crushed rock at least one sieve larger than the tile joint opening or perforation and covered with not less than __ in. of the same material.
2 in.
6 in.
98
A ___ mil. thick polyethylene vapor retarder shall be applied over the porous layer with the basement floor constructed over the polyethylene.
6 mil
99
Masonry walls shall have not less than ___ in. Portland cement parging applied to the exterior of the wall.
3/8”
100
In ares with a high water table or severe soil-water conditions, exterior foundation walls that retain earth and enclose interior spaces below grade shall be water proofed from the top of the footing to the finished grade with _______________________.
Forty-mil (1mm) polymer-modified asphalt
101
Wood columns shall be not less than __x__in.
4x4
102
Steel columns shall be not less than ___in. diameter.
3
103
Under floor space ventilation- where a class 1 vapor retarder material is used, the minimum net area of ventilation shall be not less than ___ sq. ft for each ___ sq. ft.
1, 1500
104
Ventilation openings shall be covered for their height and width with any of the following materials provided that the least dimension of the covering shall not exceed 1/4 in.
Corrosion-resistant wire mesh with the least dimension being 1/8” thick
105
Access shall be provided to all under-floor spaces. Access openings through the floor shall be a minimum of ___x___ in. Openings through a perimeter wall shall be not less than ___x___ in.
18x24
16x24
106
Joists under parallel bearing partitions shall be ____________________ to support the load. Double joists, sized to adequately support the load, that are separated to permit the installation of piping or vents shall be ________________________.
Of adequate size
Full depth and solid blocked
107
The ends of each joist, beam or girder shall have not less than ___ in. of bearing on wood or metal and not less than ___ in. on masonry or concrete.
1.5
3
108
Joists framing from opposite sides over a bearing support shall lap a minimum of ___ in.
3
109
Joists framing into the side of a wood girder shall be supported by approved framing anchors or on ledger strips not less than nominal ___x___in.
2x2
110
Notches in solid lumber joists, rafters and beams shall not exceed 1/6 the depth of the member, shall not be longer than 1/3 the depth of the member and shall not be located in the middle 1/3 of the span.
The diameter of holes bored or cut into members shall not exceed 1/3 the depth of the members. Holes shall not be closer than ___in. to the top or the bottom of the member.
2
111
Particleboard floor underpayment shall conform to type PBU and shall be not less than ___in. in thickness.
1/4
112
Screws for steel-to-steel connections shall be placed with a minimum edge distance and center-to-center spacing of ___in. shall be self drilling tapping & shall conform to ___________.
1/2”
ASTM C1513
113
Floor sheathing shall be attached to cold-formed steel joists windows with a minimum no. ___ self drilling tapping screws that conform to _______________.
For all connections, screws shall extend through the steel not fewer than ___ exposed threads.
8
ASTM C1513
3
114
Reinforcement of web holes in floor joists shall be permitted if the hood is located fully within the center ___% of the span.
Steel reinforcing shall not be thinner than the thickness of the receiving member and shall extend not less than ___in. beyond all edges of the hole. It shall be fastened to the web with No. 8 screws spaced not more than ___in. center-to-center along the edges of the patch with a minimum edge distance of ___on.
40%
1in.
1in.
1/2in
115
Concrete slab-on-ground floors shall be designed and constructed in accordance with the provisions of this section R506 or ACI 332. Floors shall be a minimum of ___ in. thick.
3 1/2”
116
True or false:
The area within the foundation walls shall have all vegetation, top soil & foreign material removed.
True
117
Fill material shall be free of vegetation and foreign material. The fill shall be compacted to assure uniform support of the slab. Fill depths shall not exceed ___in. for clean sand or gravel and ___in. for earth.
24”
8”
118
A ____________________ or approved vapor retarder with joints lapped not less than ___in. shall be placed between the concrete floor slab and base course or subgrade.
Except:
1. Garages, utility buildings and other ingested accessory structures
2. Unheated storage rooms less than ___ sq. ft.
3. Driveways, walks, patios and other unenclosed and unheated flatwork
4. Where approved by building official
6-mil polyethylene
6in.
70sq ft
119
R602 Wood Wall Framing
Studs shall be a minimum _______ standard or stud grade lumber.
No. 3
120
Section R602 Wood Wall Framing
Utility grade studs shall not be spaced more than ___in. on center.
16
121
End joints in top plates shall be offset not less than ___in.
24
122
Where joists, trusses or rafters are spaced more than 16 in. on center and the bearing studs below are spaced 24 in. on center, such members shall bear within ___in. of the studs beneath.
5
123
Bottom (sole) plate: Studs shall have full bearing on a nominal 2-by or larger plate or will having a width _______________ to the width of the studs.
At least equal to
124
Any stud in an exterior wall or bearing partition may be cut or notched to a depth not exceeding ___% of its width. Studs in non bearing partitions may be notched to a depth not to exceed ___% of a single stud width.
25%
40%
125
Any stud may be bored or drilled provided that the diameter of the resulting hole is not more than ___% of the stud width, the edge of the hole is no more than ___in. to the edge of the stud, and the hole is not located in the same section as a cut or notch.
60%
5/8 in.
126
Studs located in exterior or bearing walls drilled over 40% and up to 60% shall be ___________ with no more than two successive doubled studs bored.
Doubled
127
Where piping or ductwork is placed in or partly in an exterior or interior load bearing wall necessitating cutting, drilling or notching of the top plate by more than ___% its width, a galvanized metal tie not less than 0.054 in. thick and 1.5 in. wide shall be fastened across and to the plate at each side of the opening.
50
128
Load-bearing headers are not required in interior or exterior no bearing walls. A single flat 2x4 shall be permitted to be used as a header in for openings up to ___ feet.
8
129
Foundation cripple walls shall be framed of studs not smaller than the studding above. Where exceeding ___ feet in height, such walls shall be framed of studs required for an additional story.
4
130
R603 Steel Wall Framing
Load-bearing cold-formed steel studs shall be located in-line with joists, trusses and rafters and the maximum tolerance shall be ___ in. between the centerline of the horizontal framing member and the centerline of the vertical framing member.
3/4 in.
131
Screws for steel-to-steel connections shall be installed with a minimum edge distance and center-to-center spacing of ___ in. and be self-drilling tapping and conform to _______________.
1/2 in.
ASTM C1513
