Transcript International Building Codes - Tidewater Builders Association

State of Virginia’s Adoption
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Uniform Statewide Building Code
– Adopts model codes by reference
• Family of I Codes 2003 edition
• NEC 2002 edition
– Statewide adoption of amendments
– Uniform across State
– May not be amended by City or County
Expected adoption date: November 16,
2005
 Mandatory enforcement after November
16, 2006.
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What Codes will be adopted?
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Building Code (IBC 2003)
Mechanical Code (IMC 2003)
Plumbing Code (IPC 2003)
Fuel Gas Code (IFGC 2003)
Electric Code (NEC2002)
Dwelling Code (IRC 2003)
Energy Code (IECC 2003)
Existing Building Code (IEBC 2003)
Accessibility (ANSI 117)
Property Maintenance Code (IPMC 2003)
Virginia Construction Code (USBC2005)
Description
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I Codes are a family of Codes
Integrated - with inter-related code provisions
linked together
Developed by City, County and State building
safety professionals with significant input from
the design community and the construction
industry.
Industry membership (Including HBAV) on code
committees establishes a consensus-based code
development process.
FOR MORE INFO...
www.iccsafe.org
(800) 786-4452
Significant Changes in IRC 2003
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Table R301.5 allows for attic without storage live load of 10psf.
R302 Location on lot: USBC 5’ or 1 hour rating; 3’-5’ only 25% of
wall permitted to have openings.
 Section R303.2 allows a Sunroom to provide light to interior room.
 Section R303.4 sets location requirements of intake and exhaust
openings.
 R305.1 Ceiling height for bathrooms is clarified: 6’8” over fixtures.
 R308.4 item #9: Safety glazing is required for stair landings within
36” horizontally and 60 inches vertically of floor.
 R309.2 Garage separation from habitable areas with ½inch drywall
on walls and 5/8 inch in floor ceiling separations. Adjacent walls
supporting this must be ½ inch drywall.
Significant Changes in IRC 2003
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R309.6 Automatic garage door openers must meet UL325.
R310.1 Egress window requirements in basements are clarified.
R311.5.6 Handrails required with four risers (previously three).
R311.4.1 Access to other habitable levels must be by ramp or stair.
R311.5.6.2 Handrails must be continuous for flight…terminate in
newels
R311.5.6.3 Handrail grip size clarified
R312.1 Porches and decks with insect screening must have
guards.
R312.1.1 A 3’ X 3’ landing is required at bottom of attic stair where
the room above can be habitable.
R314.2 Stair riser and depth requirements remain the same: 8 ¼
inch rise; 9 inch minimum tread.
Significant Changes in 2003 IRC
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R317.2 Town home separation must include attached
accessory structures.
R323 Flood resistant requirements requires protection for
mechanical and electrical systems including ductwork. AsBuilt drawings are now required.
Section 402.3 permits pre-cast concrete foundations
Table R403.1 Minimum footing widths decreased.
R404.1.5.1 Pier and curtain wall foundations systems are
limited to two stories (without a design).
Section R408.3 requires underfloor access to be 16” by 24” in
wall; 18” by 24” in floor.
Section R502.2.1 Provides a table for bolt size and spacing
for deck support.
Table R502.3.3(1) establishes cantilever limits for floor joists.
(NEW).
Significant Changes in 2003 IRC
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Section R502.4 Joists under bearing partitions must be sized for
the load imposed (Double joists may not be enough-Beam may be
needed).
 Table R602.3(5) Size, height and spacing of wood studs is limited
to two floors and roof.
 R602.6.1 Limits drilling or notching of top plate to 50% of width.
 R602.6.1 requires 8 nails per side of strap when top plate is cut,
drilled or notched over 50% of width.
 R702.4.2 prohibits water resistant Gypsum backer board over
vapor retarder in tub/shower compartment.
 R905.2.6 requires special fastening methods for high wind speeds
(ASTM 3161).
 Section R1001.6.1 Establishes requirements for spark arrestors.
Common Code Problems
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Shear walls and wall bracing not being installed properly.
Flood Vents not being installed; using foundation vents instead…
Footings improperly dug; soil not solid.
Foundation piers over 4X the height (32” for 8”) not filled.
Box connection to girder missing or improper.
Exterior nailing improper (6” and 12”)
Excessive cutting/notching of structural members.
Fireblocking missing or improperly installed.
Flashing not being installed properly
Pier and Curtain Wall Foundation design limited to two floors and a roof, not three
floors and roof w/o design.
Guards installed with improper height, intermediate picket spacing or strength.
Handrails: Improper height, size of railing.
Elevation certificate for BFE missing (As-built survey)
Window labeling for energy code or safety glazing.
Residential elevators
Deck construction (Section R502.2.1)
Permits for re-roofing (Required in high wind speeds)
What’s next?
2006 IRC is being printed now.
 State and VBCOA will begin working
on adoption for next cycle
immediately. Your input for State
Amendments are encouraged.
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