Transcript Slide 1

2012 Building Codes
Take Effect
MAY 1st
2012 IRC Transition
from the 2006 IRC
Based on the 2006 International Residential Code® (IRC®),
the 2009 International Residential Code® (IRC®), and the
2012 International Residential Code® (IRC®)
Townhomes
State law requires townhome buildings with more
than 3 units or if the building contains more than
5,000 square feet to be sprinkled.
Regardless of plan review date permits issued on
or after May1, 2014 for townhomes which meet
this criteria must be sprinkled.
2012 IRC Transition from the 2006 IRC
Workbook page 28
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R308.4.7 – Glazing adjacent to the
bottom stair landing
This section has been revised to change the criteria for
the hazardous location of glazing installed near the
landing at the bottom of a stairway.
The threshold for the minimum height above the
walking surface is revised from 60 inches to 36 inches
for determining that the glazing is in a hazardous
location.
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Glazing adjacent to the bottom landing of a stairway
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R310 – Habitable attics and rescue
windows required
This section now includes a requirement for
habitable attics ( finished or unfinished) to have one
emergency escape and rescue openings.
Definition: Habitable attic is:
*An occupiable floor area of 70 SF or more
*Has a ceiling height of 7 feet
*The occupied space (living, sleeping, eating or
cooking areas) is enclosed by roof assembly above,
knee walls (if applicable) and floor/ceiling assembly
below.
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Habitable Attics:
 Finished habitable attics must have a
smoke detector that is interconnected with
all other smoke detectors.
Guards
Are required along open sided walking
surfaces, including stairs, ramps and
landings that are more than 30 inches
above floor or grade. The 30” must
extend out horizontally for 36”.
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R312.2 – Window fall protection
(NEW)
This new section has been relocated from Chapter
6 to Chapter 3.
Window fall protection is consistent with guards
and this change intends to assist code users by
placing these provisions with the guard provisions.
 This section still requires window guards where
the window sill is within 24” of the floor and more
than 72” to the exterior grade.
Guards must comply with ASTM F2090
2012 IRC Transition from the 2006 IRC
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Window sill height
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R314.5 – Interconnection (NEW)
Listed wireless smoke alarms are now specifically
approved for satisfying the interconnection
requirements for both new and existing dwellings.
Wiring is not required to achieve the interconnection
of two or more wireless smoke alarms.
These smoke detectors are still required to be
hardwired with battery backup, however the
interconnection can be wireless.
2012 IRC Transition from the 2006 IRC
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R315 – Carbon Monoxide Alarms
(NEW)
Carbon monoxide alarms are now required in all
new dwelling units which have fuel-fired
appliances or have an attached garage
 CO detectors must be installed outside of each
separate sleeping area and in the immediate
vicinity of the bedrooms. Detectors must comply
with UL2034.
 These detectors must be hardwired.
Combination Smoke and CO
Detector’s
 These are permitted as long as they
comply with both smoke and carbon
monoxide detector requirements.
R501.3 – Fire protection of floors
This section requires all floor assemblies, not
required by other sections to be fire rated, to be
protected on the underside with 1/2-inch gypsum
board, 5/8-inch wood structural panels or the
equivalent.
There are four exceptions provided that specify where the protection
is not required.
 Wood floor assemblies using dimension lumber or structural
composite lumber (LVL’s or similar) equal to or greater than 2 inch
by 10 inch. DOES ON INCLUDE OPEN WEB TRUSSES.
 When located over sprinkled areas.
 When located over a crawl space not intended for storage or fuel
fired appliances. (Access by standard size crawl space door)
 The aggregate area of the unprotected area is less than 80 square
feet.
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R501.3 – Fire protection of floors
(NEW)
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R501.3 – Fire protection of floors
(NEW)
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R501.3 – Fire protection of floors
(NEW)
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R507 – Deck ledger connection to
band joist (NEW)
This section adds a prescriptive method for
attaching a deck to the main building.
• Required hot dipped galvanized lag screws or
thru bolts with washers or be self supporting.
• Spacing of fasteners is in accordance with
Tables R507.2 and R507.2.1
2012 IRC Transition from the 2006 IRC
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Deck Ledger Table
Deck Ledger Diagram
R602.7 – Headers
The code now includes prescriptive provisions for
single-member headers under limited conditions.
The revision to Section R602.7 allows single
headers under limited loading conditions to
increase the energy efficiency of the dwelling.
Installation of a single header results in a greater
thickness of cavity.
2012 IRC Transition from the 2006 IRC
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Single Header Table
Single Header Diagram
New Span Charts
Floor joist, rafters, ceiling joist, girders and
header span charts have been updated.
Copies are available…
Section R807.1 (Amended)
Attics with mechanical equipment must have
permanent access either by pull down stair or a
permanent ladder.
Opening size is minimum of 22 x 30 inches and
large enough to allow removal of the largest
appliance.
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R905.2.8.5 – Drip edge
This section adds the requirement for a roof drip
edge for asphalt shingles and provides direction for
its proper installation.
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Energy Efficiency
Energy efficiency requirements will be as
Required by the 2009 International
Energy Efficiency Code.
Insulation requirements will stay the
same.
N1102.4.1 – Building test (NEW)
Blower door test must be less than 7 ACH.
Duct blaster test is given 4 choices to pass the test, 2
at rough-in and two at final test.
Cannot be performed by the permit holder or
employee of the permit holder.
•Must be certified by Building Performance Institute,
certified duct and envelope tightness verifier or
accredited HERS rater.
•Certification letter with results must be submitted.
•Results to be shown on energy certificate that is
attached to the circuit breaker panel
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N1102.4.1 – Building test (NEW)
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M1507.3 – Whole-house
mechanical ventilation system
(NEW)
Where a blower door test of the building indicates
that the infiltration rate is less than five ACH50, the
dwelling must be provided with whole-house
mechanical ventilation. Outside air must be brought
in in accordance with section M1507.3.
2012 IRC Transition from the 2006 IRC
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M1411.3.3 – Appliances,
equipment and installation in pans
A new section was added to require portions of
appliances that must be placed within a drain
pan must be elevated with corrosion resistant
material and any insulation or components that
could be damaged by water must be located
above the flood rim level of the pan.
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M1411.6 – Locking access caps
This new section requires locking caps on
refrigerant ports that are located on the outside of
the building.
Another option is to locate the units within a fenced
in area.
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M1502.4.1 – Material and size
The dryer exhaust duct diameter is specified to
be 4 inches in diameter, rather than as required
by the clothes dryer’s listing and the
manufacturer’s installation instructions.
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The maximum allowable dryer duct length is now
35 feet (consistent with Section G2439.5.5.1).
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M1502.4.4 and Table M1502.4.4.1 – Dryer
Exhaust Duct Fitting Equivalent Length
This table replaces the previous length reductions for
bends in an exhaust system. It includes longer radius
bends which have less reduction requirements. This
can result in longer equivalent length duct installations.
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M1502.4.5 – Length identification (NEW)
A new section was added to require a label or
tag to provide the equivalent length of the
exhaust duct if the duct is concealed within the
building construction.
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Example of a dryer exhaust length label
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M1502.4.6 – Exhaust duct required
(NEW)
A new section was added to require an exhaust
duct system to be installed during construction
where a space for a clothes dryer is provided.
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M1502.5 – Protection required
(NEW)
A new section was added to require steel protective
shield plates to prevent penetration of the clothes
dryer exhaust duct by nails or screws.
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P2603.4 – Pipes under footings
The requirement for a pipe sleeve or a relieving
arch for pipes passing under a footer was removed
because the footer acts as the relieving arch for the
pipe below.
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M2705.1, Item 5 – General
This section was clarified to specify that water
closets, lavatories and bidets cannot be set
closer than 15 inches from their center line to
any side wall, partition or vanity; nor closer than
30 inches center-to-center between adjacent
fixtures.
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Fixtures clearances
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M2706.2.1 – Laundry tray
connection
A new requirement was added where a laundry
tray waste outlet connects an automatic clothes
washer standpipe. The top of the clothes washer
standpipe must extend above the flood rim level
of the laundry tub.
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Laundry tray drain connection to ACW standpipe
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M2708.2 – Water supply riser
A new requirement was added specifying that
shower head risers must be attached to the
structure by screws or other support devices
specifically designed for such purpose.
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Securing shower riser
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P3005.2.6 – Base of stacks
This section was revised to
clarify that a cleanout must be
provided at the base of each
soil or waste stack.
Cleanout at base of stack
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P3008 Back Water Valves
Where the flood level rims of plumbing fixtures
are below the elevation of the manhole cover
of the next up stream manhole, a backwater
valve must be installed.
2012 IRC Transition from the 2006 IRC
P3008 Back Water Valves
Continued
Where a backwater valve is installed, a Release
and Indemnification Agreement must be
executed.
2012 IRC Transition from the 2006 IRC
Electric Meters Must Be Installed
Prior to Final Electrical Inspections
The service entrance agreement will no longer
need to be signed, nor will the $35 fee or $400
deposit be required
2012 IRC Transition from the 2006 IRC
Electric Meters Must Be Installed
Prior to Final Electrical Inspections
The Electrical Permit for a dwelling unit will include:
1 Rough In Inspection
1 Service Entrance Inspection and
1 Final Inspection.
The 1 Re-Inspection will NO longer be included
with an electrical permit
If an inspection fails, the electrician will be required
To purchase a Re-Inspection permit
2012 IRC Transition from the 2006 IRC
Electric Meters Must Be Installed
Prior to Final Electrical Inspections
When a house is occupied prior to issuance
of the Certificate of Occupancy, the contractor
will not be eligible for permits until the occupied
house has a Certificate of Occupancy
2012 IRC Transition from the 2006 IRC
Questions
and Answers
2012 IRC Transition from the 2006 IRC
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2012
International Building Code Changes
2012 IRC Transition from the 2006 IRC
Section 908.7
Carbon Monoxide Detectors in Group R and I
occupancies with fuel burning equipment or
attached garages.
Includes renovations, repairs to existing
structures of Group R and I
2012 IRC Transition from the 2006 IRC
Section 1008.1.9.4
Manually operated edge or surface mounted
bolts on the inactive leaf of a pair of doors is
permitted in Groups B, M, F, S and I-2
Occupancies with certain conditions.
2012 IRC Transition from the 2006 IRC
Section 1008.1.10.1
Panic hardware must be listed in compliance
with UL 305.
2012 IRC Transition from the 2006 IRC
Chapter 9
Sprinkler systems are required in buildings where:
• Upholstered furniture or mattress manufacturing
in buildings over 2,500 square feet
• Buildings where upholstered furniture or
mattresses are on display for sale exceeds
5,000 square feet
2012 IRC Transition from the 2006 IRC
Section 1013.1 Guards
The vertical distance from walking surfaces to
the grade below is based on the lowest point
within 36”, measured horizontally.
2012 IRC Transition from the 2006 IRC
Section 1109.2.1
A family toilet room will be required in all
mercantile or assembly occupancies where
more than 6 water closets are required.
2012 IRC Transition from the 2006 IRC
2012
International Mechanical
Code Changes
2012 IRC Transition from the 2006 IRC
Nail stations in nail salons must each
be provided with a source capture
system
2012 IRC Transition from the 2006 IRC
Section 507.2.12.2
Listed Type 1 hoods are now required to label
the minimum exhaust air flow rate
2012 IRC Transition from the 2006 IRC
Section 1101.10
Refrigerant circuit access ports that are located
outdoors must be secured with a locking cap or
other wise secured to prevent unauthorized
access.
2012 IRC Transition from the 2006 IRC
2012
International Plumbing Code
Changes
2012 IRC Transition from the 2006 IRC
Section 607.2
The maximum distance between a hot water
source and a fixture has been reduced from 100
feet to 50 feet.
2012 IRC Transition from the 2006 IRC
2012
International Fuel Gas Code
Changes
2012 IRC Transition from the 2006 IRC
Section 308.1
Gypsum board is to be considered a
combustible material for the purpose of required
clearances.
2012 IRC Transition from the 2006 IRC
Section 404.4
No longer permits fuel gas piping to penetrate
the foundation wall when piping is below grade.
2012 IRC Transition from the 2006 IRC