Building Codes - Residential Standards
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Questions and Answers

What is the maximum amount of slope allowed before a footer must be stepped?

  • 20 %
  • 15 %
  • 10 % (correct)
  • 25 %
  • What is the minimum distance for roof drainage from foundation walls?

  • 20 feet
  • 15 feet
  • 10 feet
  • 5 feet (correct)
  • Crawl space vents must be located within how many feet of each corner of the building?

  • 2 feet
  • 6 feet
  • 3 feet (correct)
  • 4 feet
  • What is the required spacing for anchor bolts in buildings over two stories in height?

    <p>4 feet</p> Signup and view all the answers

    What part of a fireplace prevents ash or debris from spilling onto the floor?

    <p>Hearth</p> Signup and view all the answers

    What is the maximum slope allowed for ramps without requiring a handrail?

    <p>1:8</p> Signup and view all the answers

    All ramps above what slope must provide a handrail?

    <p>1:12</p> Signup and view all the answers

    What type and size of vent is required for a water heater?

    <p>3 inch double wall type B</p> Signup and view all the answers

    What is the minimum and maximum slope for a skylight?

    <p>15 degrees to 60 degrees</p> Signup and view all the answers

    What is the maximum U-factor for skylights in Zone 3?

    <p>0.6</p> Signup and view all the answers

    What is the maximum size notch that can be cut into a 2 x 4 load bearing wall stud?

    <p>25% of the stud depth</p> Signup and view all the answers

    What is the minimum depth for a hearth in front of a masonry fireplace?

    <p>16 inches</p> Signup and view all the answers

    Handrail height shall not be less than inches and not more than inches.

    <p>34 &amp; 38 inches</p> Signup and view all the answers

    What is the minimum roof slope for built-up roofs, excluding exceptions?

    <p>¼:12</p> Signup and view all the answers

    What is the proper spacing of drywall screws when using 5/8 inch drywall on 24 inch on-center spacing of supports?

    <p>12 inches</p> Signup and view all the answers

    How high must a porch floor or deck be above the ground to require a guardrail?

    <p>30 inches</p> Signup and view all the answers

    What is the minimum thickness of a masonry fireplace foundation?

    <p>12 inches</p> Signup and view all the answers

    What is the minimum width of an open metal valley lining on an asphalt roof?

    <p>24 inches</p> Signup and view all the answers

    What is the load bearing capacity of clay soil if no soil tests are required?

    <p>2,000 pounds per square foot</p> Signup and view all the answers

    Type I Round handrails must have a diameter of not less than 1 1/4" and not larger than:

    <p>2 inches</p> Signup and view all the answers

    Unreinforced solid masonry parapet walls shall not be less than how thick and how high?

    <p>Not less than 8 inches and shall not exceed 4 times their thickness in height</p> Signup and view all the answers

    What is the maximum steepness allowable for treads and landings?

    <p>1:48</p> Signup and view all the answers

    What is required for a protective bar installed on a glazed door to meet safety standards?

    <p>50 lbs per linear foot</p> Signup and view all the answers

    What sanitation facilities are necessary for every dwelling?

    <p>Water closet, lavatory, and shower/bath</p> Signup and view all the answers

    The veneer shall be separated from the sheathing by an air space of how many inches?

    <p>1 - 4.5 inches</p> Signup and view all the answers

    Glazing in an individual fixed or operable panel adjacent to a door where the nearest vertical edge of the glazing is within a 24-incharc of either vertical edge of the door in a closed position and where the bottom exposed edge of the glazing is less than 60 inches above the floor or walking surface shall be considered

    <p>A hazardous location</p> Signup and view all the answers

    What is the requirement for a second drain pan in cooling and heating systems?

    <p>It is required where damage could occur due to overflow</p> Signup and view all the answers

    What is the maximum area of each glass masonry individual thin-unit panel?

    <p>85 sq. ft.</p> Signup and view all the answers

    What are the requirements for the ladder when an above-ground pool is used as a barrier?

    <p>It must be secured, locked, or removed</p> Signup and view all the answers

    What is required when re-roofing with bituminous materials?

    <p>The metal flashing must be primed</p> Signup and view all the answers

    Code requires that there is how much space between a slope roof and insulation?

    <p>1 inch</p> Signup and view all the answers

    What is the maximum projection allowed when corbeling a masonry wall?

    <p>The maximum projection of one unit shall not exceed one-half the height of the unit or one-third</p> Signup and view all the answers

    Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by?

    <p>an atmospheric-type or pressure-type vacuum breaker</p> Signup and view all the answers

    What is the minimum interior dimension required for a shower stall?

    <p>30 inches</p> Signup and view all the answers

    When inspecting a floor drain, what should be present?

    <p>Not less than a 2&quot; waste outlet and a removable strainer.</p> Signup and view all the answers

    What is the maximum distance anchor bolts should be spaced in a structure?

    <p>4 feet</p> Signup and view all the answers

    What is the minimum and maximum slope for a skylight?

    <p>15 degree minimum and 60 degree maximum slope</p> Signup and view all the answers

    A pool's gate release mechanism shall be located on the pool side where?

    <p>At least 3&quot; below the top of the gate</p> Signup and view all the answers

    What is the regulation for the spacing of crawl space vents?

    <p>Within 3 feet of each corner</p> Signup and view all the answers

    When a 1/2 inch iron pipe is used for gas, how many threads must be cut?

    <p>10</p> Signup and view all the answers

    What is the minimum thickness required for unreinforced solid masonry parapet walls?

    <p>4 inches</p> Signup and view all the answers

    What is the required load capacity of a protective bar installed on a glazed door?

    <p>50 lbs</p> Signup and view all the answers

    What is the maximum slope allowed for treads and landings?

    <p>1:48</p> Signup and view all the answers

    When re-roofing with bituminous materials, what must the metal flashing be?

    <p>Primed</p> Signup and view all the answers

    What area of each glass masonry individual thin-unit panel is allowed at maximum?

    <p>85 sq.ft.</p> Signup and view all the answers

    What is the width requirement for coarse sand under wood foundations?

    <p>1/16 inch</p> Signup and view all the answers

    What sanitation facilities must be present in every dwelling?

    <p>Water closet, lavatory, and shower/bath</p> Signup and view all the answers

    What is the minimum thickness required for a door separating a garage from a residence?

    <p>1 3/8 inches</p> Signup and view all the answers

    What is the minimum distance untreated wood siding can be from the ground?

    <p>6 inches</p> Signup and view all the answers

    How high must a porch floor be above the ground to require a guardrail?

    <p>30 inches</p> Signup and view all the answers

    What is the required landing size at the top and bottom of ramps?

    <p>36 inches</p> Signup and view all the answers

    What should be the minimum depth for a hearth in front of a masonry fireplace?

    <p>16 inches</p> Signup and view all the answers

    Handrail height shall not be less than --- inches and not more than--- inches.

    <p>34 / 38 inches</p> Signup and view all the answers

    What is the maximum spacing for drywall screws when using 5/8 inch drywall on 24 inch on-center supports?

    <p>12 inches</p> Signup and view all the answers

    What is the minimum roof slope for mineral surfaced roll roofing?

    <p>1/12</p> Signup and view all the answers

    What is the minimum roof slope for standing seam roof systems?

    <p>1/4 : 12</p> Signup and view all the answers

    Buildings erected in coastal high-hazard areas shall be supported on what?

    <p>Piling or columns</p> Signup and view all the answers

    To frame a large floor opening, a single header can be used if the dimension of the opening along the header is less than

    <p>four feet</p> Signup and view all the answers

    The diameter of holes cut into wooden floor joist members shall not exceed:

    <p>1/3 the depth of the member</p> Signup and view all the answers

    Coal-tar built-up roofs can have a slope as low as

    <p>1/8:12 (1%)</p> Signup and view all the answers

    What is the minimum depth for a hearth in front of a masonry fireplace?

    <p>16 inches</p> Signup and view all the answers

    Woodwork or other combustible materials shall not be placed within how many inches of a fireplace opening?

    <p>16 &quot;</p> Signup and view all the answers

    In High Wind zones the roof sheathing shall be?

    <p>blocked and nailed at the end of 2 rafters or truss.</p> Signup and view all the answers

    Exterior foundation walls in High Wind zones shall have vertical reinforcements bars installed not more that from each corner?

    <p>2'</p> Signup and view all the answers

    Walking surfaces, including stairs, porches, balconies or landings that are 30 inches or higher require a guard with the the minimum height of HOW MANY INCHES

    <p>36</p> Signup and view all the answers

    What is the minimum size of wall reinforcement bars and maximum spacing needed for Exterior foundation walls in High Wind zone?

    <p>5/8&quot; bar and 96&quot; spacing</p> Signup and view all the answers

    Floor drains shall have waste outlets not less than?

    <p>2&quot;</p> Signup and view all the answers

    What size shall the trap be for a kitchen sink with a food waste disposer?

    <p>1 1/2&quot;</p> Signup and view all the answers

    In areas where expansive soils or collapsible soils are known to exist, all dwellings shall have a controlled method of water disposal from roofs that will collect and discharge roof drainage to the ground surface not less than from foundation walls or to an approved drainage system

    <p>5 feet</p> Signup and view all the answers

    Ventilating openings used for cross ventilation of attics and enclosed rafter spaces shall be?

    <p>Corrosion-resistant wire mesh, with 1/16 inch minimum to 1/4 inch maximum openings</p> Signup and view all the answers

    Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters shall have?

    <p>Cross ventilation</p> Signup and view all the answers

    Study Notes

    Building Codes - Residential

    • Buildings in high-hazard coastal areas must be supported on pilings or columns.
    • Fire-resistant doors separating garages and residences should be 1-3/8 inches thick.
    • Handrails must be at least 34 inches and no more than 38 inches high.
    • Porch floors or decks require guardrails if they are 30 inches or higher from ground level.
    • A single header can frame large openings if the header is less than four feet.
    • Holes in wooden floor joists can't exceed 1/3 the depth of the member.
    • Built-up roofs need a minimum slope of 14:12, but coal-tar roofs can be as low as 1/8:12 (1%).
    • Masonry fireplace foundations must be at least 12 inches thick.
    • Type 1 round handrails should be 1 1/4 inches in diameter and no more than 2 inches.
    • Drywall screws should be spaced 12 inches apart on walls with 24-inch studs.
    • The maximum notch size that can be cut into a 2x4 load-bearing wall stud is 25% of its size.
    • Untreated wood siding, sheathing, or wall framing needs to be at least 6 inches from the ground.
    • Mineral-surfaced roll roofing needs a minimum 1:12 slope.
    • Standing seam roof systems need a minimum 1/4:12 slope.
    • Open metal valley linings on asphalt roofs need a minimum width of 24 inches.
    • Ramp landings and tops need a minimum width of 36 inches.
    • Fireplaces need a hearth of at least 16 inches deep.
    • Woodwork or combustible materials should be at least 6 inches away from fireplace openings.
    • High wind zone exterior foundation walls need vertical reinforcement bars spaced no more than 2 feet apart from each corner.
    • High wind zones require roof sheathing to be blocked and nailed at the ends of 2 rafters or trusses.
    • Clay soil load bearing capacity without testing is 2,000 psf (pounds per square foot).
    • Walking surfaces 30 inches or higher need guards at least 36 inches high.
    • Anchor bolts are spaced a maximum of 6 feet apart.
    • Crawl space vents need to be within 3 feet of each corner of the building.
    • Foundations (braced wall line sills) need to be anchored to concrete or masonry.
    • Enclosed attics/rafter spaces require cross-ventilation.
    • Re-roofing is required instead of recovering when the existing roof is water-soaked.
    • Gas pipe (1/2 inch iron pipe) needs 10 threads cut.
    • Sillcocks, hosebibs, etc., need an atmospheric or pressure-type vacuum breaker.
    • Masonry corbeling projections should not exceed half the unit's height or one-third of the unit.
    • Kitchen sinks with food waste disposers need 1 1/2-inch traps.
    • Floor drains need 2-inch waste outlets.
    • Expansive or collapsible soils require water disposal from roofs to the ground surface at least 5 feet from foundations.
    • Ventilating openings for attics and enclosed rafter spaces need corrosion-resistant wire mesh with 1/16-inch to 1/4-inch openings.
    • Water heaters need 3-inch, type B, double-wall vents.
    • Floor drains require a 2-inch waste outlet and a removable strainer.
    • Wall reinforcement bars in high wind zones are 5/8" with 96" spacing.
    • Coastal high hazard areas require pile foundations of wood or concrete.

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    Description

    Test your knowledge on essential residential building codes. This quiz covers key regulations concerning structural support, fire safety, and material specifications to ensure safety and compliance. Perfect for architects, builders, and students in construction management.

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