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TABLE R402.1.1
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
CLIMATE ZONE
5 AND MARINE 4
FENESTRATION U-FACTORb
X_ ' 21-9
SKYLIGHTb U-FACTOR
0.50
GLAZED FENESTRATION SHG& a
NR
CEILING R-VALuEk
49
WOOD FRAME WALL"" R-VALUE
21 int
Mass Wall R-Value'
21/21
FLOOR R-VALUE
'/, I
BELOW-GRADEO'm WALL R-VALUE
10/15/21 int + TB
SLAB' R-VALUE & OEPTH
10, 2 ft
! MECHANiCAUGENERAL
/ Solid fuel burning appliances include airtight stoves, fireplace stoves, factory -built fireplaces. All
solid fuel burning appliances shall comply with the provisions I.R.C. R1006.2.
For SI: 1 foot = 304.8 mm, ci =continuous insulation, int = intermediate framing.
a R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which
is less than the label or design thickness of the insulation, the compressed R-value of the insulation from
Appendix Table A101.4 shall not be less than the R-value specified in the table.
b The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
10/15/21 +TB" means R-10 continuous insulation on the exterior of the wall, or R-15 continuous insulation
on the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the
basement wall at the interior of the basement wall. "10/15/21 +TB" shall be permitted to be met with
R-13 cavity insulation on the interior of the basement wall plus R-5 continuous insulation on the interior
or exterior of the wall. "TB" means thermal break between floor slab and basement wall.
a R-10 continuous insulation is required under heated slab on grade floors. See R402.2.9.1.
There are no SHGC requirements in the Marine Zone.
'Reserved.
g Reserved.
Reserved.
'The second R-value applies when more than half the insulation is on the interior of the mass wall.
Reserved.
k For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38.
'Reserved.
m Int. (intermediate framing) denotes standard framing 16 inches on center with headers insulated with a
minimum of R-10 insulation.
° Log and solid timber walls with a minimum average thickness of 3.5 inches are exempt from this insulation
requirement.
1. A certificate complying with 2015 WSEC R401.3 is required to be completed by the design
professional or builder and permanently posted.
2. The building shall be tested and verified as having an air leakage rate not exceeding 5 air
changes per hour. Testing shall be conducted with the blower door at a pressure of
0.2 inches WG.
3. Each dwelling unit is required to be provided with at least one prograrnable thermostat for the
regulation of temperature.
4. Ducts shall be leak tested in accordance with WSU RS-33 using the max. duct leakage rates
specified.
5. A minimum of 75% of permanently installed lamps in lighting fixtures shall be high efficacy
lamps.
WHOLE HOUSE VENTILATION
Whole house ventilation system to be installed per 2015 IRC
Sections M1507.3.1 thru M1507.3.7
TABLE M1507.3.3(1) COUNTINUOUS WHOLE -HOUSE MECHANICAL
%ICKITn ATInki CVCTGM AIR FI 111Al RBTF RFnI IIRFMFNTS
DWELLING UNiT
FLOOR AREA
(square feet)
NUMBER OF BEDROOMS
0-1
2-3
1 4-5 1
6-7
>7
AIR
FLOW IN CFM
<1,500
30
45
601
75
90
1,501- 3,000
45
60
90
105
3,001- 4,500
60
75
'r
105
120
4,501- 6,000
75
90
120
135
6,001- 7,500
90
105
120
,135
150
> 7,500
105
120
135
150
165
TABLE M1507.3.3(2) INTERMITTENT WHOLE -HOUSE MECHANICAL \
t
VENTILATION RATE FACTORS a, b j
HEATING
Each living quarter shall be provided with heating facilities equipped of maintaining temperature
of 68 degrees Fahrenheit at a height of 3 feet above the floor and 2 feet from exterior wall in all
habitable rooms when the outside temperature is as set forth in the 2015 W.S.E.C.
1. Fuel burning appliances located within the building envelope shall obtain air from
outdoors, meeting the provisions of chapter 24 of the 2015 I.R.C.
2. Fuel burning appliances located outside the building envelope shall meet the provisions
of chapter 24 of the 2015 I.R.C.
3. Ductwork location shall meet the provisions of chapter 24 of the 2015 I.R.C.
4. Combustion air to meet the requirements of I.R.C. M1701.1
All warm air furnace shall be listed and labeled by an approved agency and installed per chapter
M1302 of the 2015 I.R.C.
Heating and cooling appliances located in the garage and which generate a glow, spark, or flame
capable of igniting flammable vapors shall be installed with the pilots and burners or heating
elements at least 18 inches above the floor surface.
Every appliance designed to be vented shall be connected to a venting system complying with
chapter 18 of the 2015 I.R.C.
Every factory -built chimney, type L vent, type B gas vent, or type BW gas vent shall be installed
in accordance with the guidelines of manufacture's installation instructions and the
requirements per chapter 24 of 2015 I.R.C.
Vent connectors shall be installed within the space or area in which the appliance is located and
shall be connected to a chimney or vent in such a manner as to maintain the clearance to
combustibles per section M1803 of 2015 I.R.C.
All heating equipment shall meet the requirements of the 2015 National Appliance Energy
Conservation Act and be so labeled. Equipment shall also comply with section M1411 of the
2015 I.R.C.
DUCTWORK
Duct system of factory built airduct shall be of metal as set forth by table 1601.1.1 of the 2015
I.R.C.
Rectangular, flat, oval, and round duct joints and seams shall be airtight per section M1601.4.1
of the 2015 I.R.C.
Duct installation shall be installed in accordance with section M1601.3 of the 2015 I.R.C.
If required, building inspector to be presented with final duct leakage affidavit, prior to final
inspection. Duct leakage and sealing requirements established in 2015 W.S.E.C. section R403.3.2
to be observed.
Ducts to be insulated with a minimum R-8 insulation in unconditioned spaces per W.S.E.C.
section R403.3.1.
CARPENTRY
GENERAL
All framing shall comply with the applicable sections of the 2015 IBC/IRC.
Pressure treated wood required in locations listed in IRC R317.1
2" minimum vertical clearance between wood and concrete, porch slabs, patio slabs and other
- similar horizontal surfaces exposed to the weather.
6" minimum clearance between wood and earth
8" minimum clearance between wood framing members that rest on concrete or masonry
exterior foundation walls
12" minimum clearance between floor beams and earth
18" minimum clearance between floor joists and earth
I neninir.
roof
Dead load 15 psf
Live load 25 psf
40 psf
floor
Dead load 10 psf
Live load 40 psf
50 psf
ceiling
Dead load 5 psf
Live load 10 psf
15 psf
Deck
Dead load 5 psf
Live load 40 psf
45 psf
Interior partition
7 psf
Exterior partition
10 psf
Wood bearing installed within W of masonry or concrete to be treated with an approved
preservative. Solid blocking of not less than 2x thickness shall be provided at ends and at all
support of joists and rafters.
Anchor bolts to be per shear wall schedule and foundation plan. 7" minimum embedment. All
metal framing anchors and hangers shown on drawings shall be strong tie connectors as
manufactured by Simpson Company.
RUN-TIME i I I I I U I Provide fireblocking in concealed spaces of stud walls and partitions including furred spaces ai
INSULATION & MOISTURE PROTECTION
GENERAL
Unless noted otherwise, insulation shall conform to the Washington State Energy code.
Insulation baffles to maintain 1 inch clear space above insulation for ventilation. Baffles to
extend 6 inch above batt insulation and 12 inches above loose fill insulation.
insulate behind bathtubs, showers, partitions and corners. Provide face stapled batts or friction
fit faced batts.
Provide R-10 insulation under electric water heater.
INFILTRATION CONTROL
Exterior joints around windows and door frames, openings between walls and foundations,
between walls and roof, and between wall panels, openings at penetrations of utility services
through walls, floors, and roof, and all others such openings in the building envelope, including
access panels into crawl space, attic shalt be sealed, caulked, gasketed, or weather stripped to
limit air infiltration.
All exterior doors other than fire rated door shall be designed to limit air infiltration around their
perimeter when in a closed position.
All exterior windows shall be designed to admit air infiltration into or from the building envelope
which shall be substantiated by testing to standard ASTME 283.73. Site built and millwork shop
made wooden sash are exempt from testing, but shall be weather stripped, caulked and more
tightly fitting.
Recessed light fixtures to limit air leakage per W.S.E.C. R403.4
VAPOR BARRIERS/GROUND COVERS
A ground cover of 6 mil black polyethylene or equivalent shall be laid over the ground in all
crawl spaces. The ground cover shall be overlapped 1 ft. at each joint and shall extend to the
foundation wall.
DOORS AND WiNDOWS
GENERAL:
The required egress door may have a maximum 7 % inches step from top of the treshhold to a
minimum 36 inches deep landing on the exterior side of the door. Other exterior doors may
have a maximum (2) 7 % inches steps to a minimum 36`beep landing. All glazing shall meet the
requirements of the 2015 W.S.E.C. Table R402.1.1 unless noted otherwise.
All skylights and skywalls shall have laminated glass unless noted otherwise.
All bedroom emergency egress windows shall have a minimum net clear opening of 5.7 square
feet. Minimum net clear operable width of 20 inches and minimum net clearing opening height_
of 24 inches, maximum sill height of 44 inches measured from the finished floor to the bottom
of the clear opening. Operable windows with a sill of more than 72 inches above finished the
grade or surface below to be minimum of 24 inches above adjacent finished floor.
SAFETY GLAZING LOCATIONS PER 2015 IRC SECTION R308.4:
Glazing in fixed and operable panels of swinging, sliding and bifold doors
Glazing in an individual fixed or operable panel adjacent to a door where the bottom exposed edge of
the glazing is less than 60 inches (1524 mm) above the floor or walking surface and it meets either of
the following conditions:
Where the glazing is within 24 inches (610 mm) of either side of the door in the plane of the door
in a closed position.
Where the glazing is on a wall perpendicular to the plane of the door in a closed position and
with in 24 inches (6 10 mm) of the hinge side of an in -swinging door.
Glazing in an individual fixed or operable panel that meets all of the following conditions
The exposed area of an individual panel is larger than 9 square feet (0.836 mz),
The bottom edge of the glazing is less than 18 inches (457 mm) above the floor,
The top edge of the glazing is more than 36 inches (914 mm) above the floor; and
One or more walking surfaces are within 36 inches (914 mm), measured horizontally and in a
straight line, of the glazing.
Glazing in guards and railings, including structural baluster panels and nonstructural in -fill panels,
regardless of area or height above a walking surface
Glazing in walls, enclosures or fences containing or facing hot tubs, spas, whirlpools, saunas, steam
rooms, bathtubs, showers and indoor or outdoor swimming pools where the bottom exposed edge of
the glazing is less than 60 inches (1524 mm) measured vertically above any standing or walking
surface
Glazing where the bottom exposed edge of the glazing is less than 36 inches (914 mm) above the
plane of the adjacent walking surface of stairways, landings between flights of stairs and ramps
Glazing adjacent to the landing at the bottom of a stairway where the glazing is less than 36 inches
GENERAL
PLANS COMPLY WITH THE 2015 INTERNATIONAL RESIDENTIAL CODE
Contractor shall verify all notes, dimensions, and conditions prior to construction. Contractor shall
provide temporary bracing as required until all permanent connections have been made. It is the
contractor's responsibility to identify all discrepancies to the architect at the time they are noted.
Dimensions take precedence over scaled drawings.
CODES
All applicable codes and authorities having jurisdiction shall be followed:
1. 2015 international Residential Code (IRC) with Washington State Amendments (WSA) except
chapters 11 and 25 thru 42 are not adopted. WAC 51-51
2. 2015 international Building Codes (IBC) with Washington State Amendments (WSA) WAC 51-
51
3. 2015 International Mechanical Code (iMC) with Washington State Amendments (WSA) WAC
52-52
4. 2015 Uniform Plumbing Code (UPC) with Washington State Amendments (WSA) WAC 51-56
5. 2015 International Fire Code with Washington State Amendments (WSA) WAC 51-54A
6. 2016 Washington State Energy Code Residential Provisions (WSEC) WAC 51-11R
EXHIBIT "A"
Legal Description
THE WEST 126 FEET OF THE SOUTH 70 FEET OF LOT 8, IN BLOCK 7, OF ALDERWOOD MANOR
NO 9, ACCORDING TO THE PLAT THEREOF, RECORDED IN VOLUME: 10 OF PLATS PAGE 6
RECORDS OF SNOHOMISH COUNTY, WASHiNGTON.
SITUATE iN THE CITY OF EDMONDS, COUNTY OF SNOHOMISH, STATE OF WASHINGTON.
SITE DATA
Jurisdiction
Zone
Parcel area
Tax parcel number
BUILDING DATA
Occupancy
Construction type
PROPOSED BUILDING AREA
EDMONDS
SINGLE FAMILY
8,820
003736-007-008-02
SINGLE FAMILY
V-B
Structural lot coverage proposed 2,724S.F. =31%
Driveway coverege proposed 880 S.F. =10%
City of Edmonds Building Division
APPP,kOVED PLAN
ALL WORK SUBJECT
TO FIELD
INSPECTION FOR
CODE COMPLIANCE
APPROVED
PLANS -MUST BE
ON JOB SITE