2008, 09-16 Permit App: 08003624 RoofProject Number: 08003624 Inv: I
Application
THIS IS NOT A PERMIT
Penalties will be assessed for commencing work without a permit
Date: 9/16/2008 Page 1 of 2
Project Information:
Permit Use: NEW ROOF Contact: THOMPSON, DOUGLAS P
Address: PO BOX 11913
C - S - Z: SPOKANE, WA 99211
Setbacks: Front Left: Right: Rear: Phone: (509) 928-4807
Group Name:
Site Information: Project Name:
Plat Key: 002878 Name: WEST VALLEY ADD NO 6 District: Nort
Parcel Number: 45182.0318 Block:
SiteAddress: 7716 E MAXWELL AVE
Location:: CSV
Lot:
Owner: Name: THOMPSON, DOUGLAS P
Address: PO BOX 11913
SPOKANE, WA 99211
Zoning: R-3 SF Res District
Water District: 100 SPO CO WATER DIST#3A
Area: 9,689 Sq Ft Width: 0 Depth: 0
Nbr of Bldgs: 0 Nbr of Dwellings: 1
Review Information:
Hold: ❑
Right Of Way (ft): 0
Review
Building Plan Review
Permits:
Released By:
Originally Released: 9/15/2008 By: tmelbourn
Building Permit
Contractor: OWNER Finn: OWNER
Phone: (000) 000-0000
This Application: Total Project:
Description Grp Type Notes Sq Ft Valuation Sq Ft Valuation
1&2 FAMILY R-3 VB NEW ROOF 0 $12,000.00 0 $12,000.00
Item Description
RESIDENTIAL PERMIT FEE
WSBC SURCHARGE
SF PLNS RVW < 7999 SQ FT
Totals: 0 $12,000.00 0 $12,000.00
Units Unit Desc Fee Amount
1 SELECT $209.25
1 SELECT $4.50
1 SELECT $83.70
Operator: JD Printed By: JD
Permit Total Fees: $297.45
Print Date: 9/16/2008
Project Number: 08003624 Inv: /
Application
Date: 9/16/2008 Page 2 of 2
THIS IS NOT A PERMIT
Penalties will be assessed for commencing work without a permit
Notes: ,
Payment Summary:
Permit Type Fee Amount Invoice Amount Amount Paid Amount Owing
Building Permit $297.45 $297.45 $0.00 $297.45
$297.45 $297.45 $0.00 $297.45
Disclaimer:
Submittal of this application certifies the owner (or person(s) authorized by the owner) has both examined and finds the information
contained within to be true and correct, and agrees that all provisions of laws and/or regulations governing this type of work will be
complied with. Subsequent issuance of a permit shall not be construed to be a permit for, or an approval of, any violation of any of
the provisions of the code or of any other state or local laws or ordinances.
Signature:
Operator: JD Printed By: .ID
Print Date: 9/16/2008
Spokaneaotsg
Community Development
Permit Center
11703 E Sprague Ave, Suite B-3
Spokane Valley, WA 99206
(509)688-0036 FAX: (509)688-0037
www spokanevallev.org
PERMIT NUMBER: 1 — 3 (oZs -
PERMIT FEE:
Residential Construction New Construction
Permit Application xf Addition/Remodel
n Other:
Accessory Bldg
Deck
SITE ADDRESS: 9 Mc, (tett A we J✓
ASSESSORS PARCEL NO:
LEGAL DESCRIPTION:
rBuildin `owner y -� - ' c : �."; '4°-``�«','-
.. iM :.m _ .s_ --`. e'.+ . , . - t. ;x - �.: " - f:
'_Cont°ractor: ,*,
•'k "t..2 '-i = ��+ ;-.�.n.fe-.^-'�'.:�
.=g.LL
Name:
JoosS IO s P , .-1 Snr
Name: O lvn e- /�
Address: 167,0_ ✓ /3-X imps /
Address:
City: 5 State:WA Zip: 992./)
City: State: Zip:
Phone/s�\2sy ‘ , / Fax:
Phone: Fax:
l
Contractor Lic No: Exp Date:
;.Contact,Per"soli _ ':,`;%.:tti;
City Business Lic. No:
SEWER OR SEPTIC?
5,...,,, --
r er
Name: %�o/e)-.77 n�s,.n
Phone: %m 9 \ 2,5'/-- L q'ii
Cost of Project: $ coo o f
Describe the scope of work in detail:
Proposed Use: ; sioP root' {4or, /tcJ �S
**************The following MUST be complete: (write N/A if not applicable)**********************
HEIGHT TO PEAK:
.472,21-1
The
DIMENSIONS:
# OF STORIES:
TOTAL HABITABLE SPACE:
MAIN FLOOR TO SQ.
FTG:
2Nu FLOOR SQ. FTG:
UNFIN BASEMENT SQ. FTG:
IMPERVIOUS SURFACE
AREA:
FINISHED BASEMENT
SQ. FTG:
GARAGE SQ. FTG:
DECK/COV. PATIO SQ. FTG:
/We-- /V/A
30% SLOPES ON
PROPERTY:
# OF BED$pOMS:
3 6eto,,,,,5
CONSTRUCTION TYEHEAT
91. LA4..,,e,A
SOURCE:
1V-1,/ r.-1 /..P
SEWER OR SEPTIC?
5,...,,, --
r er
The permitee verifies, acknowledges and agrees by their signature that: 1) If this permit is for construction of or on a dwelling, the
dwelling is/will be served by potable water. 2) Ownership of this City of Spokane Valley Permit inure to the property owner. 3) The
signatory is the property owner or has permission to represent the property owner in this transaction. 4) All construction is to be done
in full compliance with the City of Spokane Valley Development Code. Referenced codes are available for review at the City of
Spokane Valley Permit Center. 5) This City of Spokane Valley Permit is not a permit or approval for any violation of federal, state or
local laws, codes or ordinances. 6) Plans or additional information may be required to be submitted, and subsequently approved before
this application can be processed.
SIGNATURE:
Method of Payment:
9 Cash
Bankcard #:
Authorized Signature:
REVISED 2/15/07
El Check
❑ Mastercard
Expires:
DATE:
1151.- v RECEIVED BY
CITY OF SPOKANE VALLEY
❑ VISA
VIN#:
SEP 15 2008
0,1\1
SCI Okane 11703 E Sprague Ave Suite B-3♦ Spokane Valley WA 99206
♦ 509.688.0036 • Fax: 509.688.0037 •
Valle x
Y
❑X Completed Building and Mechanical Application with: Accurate address, Parcel
Number and/or Legal Description, description of work, owner and contractor
information, signature and date.
❑X Three (3) sets of plans including Site Plan, elevations, floor plans, foundation plans
with details, roof plan, framing plans and details.
❑X Show the height of any proposed buildings or accessory structures.
❑X Floor plan for each floor: Dimension to scale(minimum 118") and label each room
(including sq footage of house and garage on plans) show each level of existing
house and square footage of any additions.
❑X Egress windows: Provide at least one window or exterior door approved for
emergency escape or rescue from basement and in every room for sleeping.
❑X Floor framing details: Joist type, size, spacing and installation details.
Roof framing plan and details
❑X Furnace and hot water heater location
All header locations: type, size and connections
Foundation plan
❑X Insulation information
❑X Decks and Stairway details
All braced wall panel types: show locations and details of installation, including
engineered design
Smoke detector locations
22" x 30" attic access location
18" x 24" crawl space access
One-hour separation detail: between house and garage
*Wane
Valley
Project
Transmittal
City of Spokane Palley
Community Development
Department
11703 E. Sprague Ave, Suite B3
Spokane Valley, WA 99206
Phone: 509.688.0036
New project
Previous pre -app meeting El
Plan revisions
Transmittal Date:
Monday September 15, 2008
Site Address: 7716 E MAXWELL AVE
Parcel Number: 45182.0318
Zoning: R-3
Fire District: FD 01
Project Number: 08003624
Water District: SPO CO WATER DIST#3A
Applicant:
e-mail:
Contact:
THOMPSON, DOUGLAS P
PO BOX 11913
SPOKANE, WA 99211
(509) 928-4807
THOMPSON, DOUGLAS P
PO BOX 11913
SPOKANE, WA 99211
(509) 928-4807
e-mail:
Contractor: OWNER
( ) - 0
Owner: THOMPSON, DOUGLAS P
PO BOX 11913
SPOKANE, WA 99211
e-mail:
Occupant:
e-mail:
Arch / Engineer:
e-mail:
Project NEW ROOF
Description:
Building
Landuse
Engineer
Utilities
Health
Fire Dist
Assessor
applicatio
l
plan
2
Please send all plan review and project comments via e-mail to the
highlighted individuals.
4.0#17al
4-441rei: I. T
For City Use Riny . I
PLUS Project Number UN) JcZi-4
Project Address- ,
-t-r 1 ((1, ¶s !\ In )0 A1,4 9.11
11703 E Sprague Ave Suite B-3 • Spokane Valley WA 99206
509.688.0036 • Fax: 509.688.0037 t permitcenter@spokanevalley.org
As part of our on-going commitment do customer •service during' the - review, process of .your. project.
application, we are providing you with a TARGET DATE for.the initial technical application review. fifth
-
any reason we cannot meet this date; we will contact you with a revised target date.,
1, l
The TARGET DATE is the date we estimate your project applicationWilthave:had its initial;technidal
review. It is not the date for approval or permit issuance. •
Your application review TARGET DATE is
Tips for a Smoother Project Application Review
i Submit complete; accurate plans and documents._ - •. -
Evtra time may be requires/ for re -submittals as project application reviewers work on multiple applications.and i
may be several days before they can look at your new or revised information:
i Designate a specific contact person to communicate with the City.
IY/ule the person designated as the applicant's contact person with the City can be changed, one individual with the' .
expertise for, dealing with reviewer comments would he the best choice for tine entire review process.
i Call staff regarding the status of your project only after the target date shown atthe top:of the page., -
Although your .should be contacted odor by the target date, Please feel free to'contact as if you haven't heard from us
by your target elate. -Staff may contact you before the target date if' the initial review is complete. By following this.
procedure, you will save time and allow the reviewers to complete tlte,work more expeditiously.
Steps in the Permit Process
1. Counter Complete. Your application has been accepted as counter complete. -This means all of the required
documents, as indicated on your Pre -Application Checklist have been submitted or have been' approved ' for deferred
submittal. This does not prevent technical staff from requesting additional' information as -a result of their technicahreview. ,
•2. Quality Check. The next step in the process is a quality check to make sure that the application is reviewable and free
from substantive flaws that would'prevent technical staff from completing the technical review once it is started. When
this step is complete, your application will be routed to the appropriate staff and.remam in their review queue, until it
conies up for review.
3. Technical Compliance. Once an application is administratively complete, it is' routed to technical stafffor compliance
review. Depending on the type of project, technical staff may idclude multiple res%iewers. You should be contacted by
phone, fax. email, or mail by your TARGET DATE once the initial technical compliance review is complete. •
4. Permit Issuance. When the technical compliance review of the application is complxe,,including any subsequent re=
submittals, each reviewer will approve their section of the application 'and route it'to the'Permit Center. When all sections
of the application are received, a Permit Specialist will process the application and contact the person, specified on your
application for permit pick-up. Information regarding fees and pre -construction meetings (if required) will be provided by
the Permit Specialist at that time.
WHITE -APPLICANT PINK- BUILDING FILE REV 9/07
ROOF -CEILING CONSTRUCTION
Wood roof -ceiling construction must comply with
Section R802 or AF&PA/NDS, National Design Speci-
fication for Wood Construction. The references to
Chapter 6 figures are meant for buildings using ma-
sonry wall construction.
R802.3 Framing details. Rafters shall be framed to ridge board
or to each other with a gusset plate as a tie. Ridge board shall be
at least 1 -inch (25 mm) nominal thickness and not less in depth
than the cut end of the rafter. At all valleys and hips there shall be
a valley or hip rafter not less than 2 -inch (51 mm) nominal thick-
ness and not less in depth than the cut end of the rafter. Hip and
valley rafters shall be supported at the ridge by a brace to a bear-
ing partition or be designed to carry and distribute the specific
load at that point. Where the roof pitch is less than three units
vertical in 12 units horizontal (25 -percent slope), structural
members that support rafters and ceiling joists, such as ridge
beams, hips and valleys, shall be designed as beams.
❖ Traditional practice is to provide a ridgeboard between
opposite rafters as a nailing base and to provide a full
bearing for the rafter. Rafters must be placed directly
opposite each other, and the ridgeboard must have a
depth equal to the end of the rafter as illustrated in
Commentary Figure R802.3(1). Commentary Figure
R802.3(2) shows an option for framing opposing raf-
ters using a gusset plate.
R802.3.1 Ceiling joist and rafter connections. Ceiling joists
and rafters shall be nailed to each other in accordance with
Table R802.5.1(9), and the rafter shall be nailed to the top wall
plate in accordance with Table R602.3(1). Ceiling joists shall
be continuous or securely joined in accordance with Table
R802.5.1(9) where they meet over interior partitions and are
nailed to adjacent rafters to provide a continuous tie across the
building when such joists are parallel to the rafters.
Where ceiling joists are not connected to the rafters at the top
wall plate, joists connected higher in the attic shall be installed
as rafter ties, or rafter ties shall be installed to provide a contin-
uous tie. Where ceiling joists are not parallel to rafters, rafter
ties shall be installed. Rafter ties shall be a minimum of 2 -inch
For SI:1 inch = 25.4 mm.
CUT DEPTH OF
RAFTER (MIN)
RIDGE BOARD
ti
MIN 1 IN. NOMINAL'
RAFTER
Figure R802.3(1)
RIDGE BOARD
° i °11140pGUSSET PLATE
NAILED TO RAFTER
° I
FTER RAFTER
RA
40.
Figure R802.3(2)
RIDGE ALTERNATIVE—GUSSET PLATE TIE
GUSSET PLATE
RAFTER
SECTION A -A
8-4
2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY
by 4 -inch (51 mm by 102 mm) (nominal), installed in accor-
dance with the connection requirements in Table R802.5.1(9),
or connections of equivalent capacities shall be provided.
Where ceiling joists or rafter ties are not provided, the ridge
formed by these rafters shall be supported by a wall or girder
designed in accordance with accepted engineering practice.
Collar ties or ridge straps to resist wind uplift shall be con-
nected in the upper third of the attic space in accordance with
Table R602.3(1).
Collar ties shall be a minimum of 1 -inch by 4 -inch (25 mm
by 102 mm) (nominal), spaced not more than 4 feet (1219 mm)
on center.
C. The requirements of this Section describe connections
to resist horizontal thrust from gravity loads and ridge
uplift from wind loads. Ceiling joists or rafter ties are
the framing members used to resist the horizontal
thrust from gravity loads. A ceiling joist or rafter tie is
required at every rafter. Collar ties or ridge straps are
used to resist the ridge uplift caused by the wind load.
Collar ties or ridge straps must be spaced not further
than every 4 feet (1219 mm) on center.
Ceiling joists located at the top plate and parallel to
the rafters must be connected as shown in Commen-
tary Figure R802.3.1(1). The fastener schedule of Ta-
ble R602.3(1) applies only if the roof live load is 20
pounds per square (958 Pa) foot or less. For a roof live
load greater than 20 pounds per square foot (958 Pa),
the connection must be in accordance with Table
R802.5.1(9).
Ceiling joists located at the top plate and parallel to
the rafters must be continuous or lap joined as shown
in Commentary Figures R802.3.1(3) and R802.3.2(1).
The fastener schedule of Table R602.3(1) applies only
if the roof live load is 20 pounds per square foot or less
(958 Pa). For a roof live load greater than 20 pounds
per square foot (958 Pa), the connection must be in
accordance with Table R802.5.1(9).
Where ceiling joists or rafter ties are located above
the top plate or the ceiling joists are not parallel to the
rafters, as shown in Commentary Figure R802.3.1(2),
the connections must be in accordance with Table
R802.5.1(9).
Cathedral ceilings (where ceiling joists or rafter ties
are not installed) must be designed so the wall or ridge
beam carries the full load of the roof. This would re-
quire the walls to be supported by a continuous foun-
dation and/or beams and girders. The ridge beam
must also be capable of supporting the full load ex-
erted by the tributary area of the rafters. The ridge
beam must be stiff enough to minimize the deflection
from the rafter loads so that rafter thrust does not dis-
place the walls.
Collar ties or ridge straps must be located in the upper
1/3 of the attic space, be a minimum of 1 inch by 4 inches
(25 mm by 102 mm), be spaced not more than 4 feet
(1219 mm) on center and connected in accordance with
Table R602.3(1). The minimum prescriptive connections
ROOF -CEILING CONSTRUCTION
in Table R602.3(1) for collar ties and ridge straps are
based on minimum connection requirements using the
2001 Wood Frame Construction Manual for slopes
greater than 3:12, at a windspeed of 100 mph (45 m/s) or
less, for a roof span of 36 feet (10 973 mm) or less [see
Commentary Figures R802.3.1(2) and R802.3.1(3)].
Figure R802.3.1(1)
CEILING JOIST AT SUPPORTS
JOIST
R802.3.2 Ceiling joists lapped. Ends of ceiling joists shall be
lapped a minimum of 3 inches (76 mm) or butted over bearing
partitions or beams and toenailed to the bearing member. When
ceiling joists are used to provide resistance to rafter thrust,
lapped joists shall be nailed together in accordance with Table
R602.3(1) and butted joists shall be tied together in a manner to
resist such thrust.
C. Where ceiling joists function as a structural element,
providing resistance to rafter thrust, proper connection
through a lapped joint or butted joint connection to
form a continuous tie is required [see Commentary
Figures R802.3.2(1) and R802.3.2(2)].
The lap splice nailing of Table R602.3(1) applies only
if the roof live load is 20 pounds per square foot (958
Pa) or less. For a roof live load greater than 20 pounds
per square foot (958 Pa), the connection must be in ac-
cordance with Note e of Table R802.5.1(9). See the
Commentary for Section R802.3.1.
R802.4 Allowable ceiling joist spans. Spans for ceiling joists
shall be in accordance with Tables R802.4(1) and R802.4(2).
For other grades and species and for other loading conditions,
refer to the AF&PA Span Tables for Joists and Rafters.
C• Tables R802.4(1) and R802.4(2) list allowable ceiling
- joist spans for common lumber sizes, species and
grades based on spacing and design loads. These ta-
bles are similar to the rafter tables explained in the
commentary for Section R802.5.
2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY 8-5
ROOF -CEILING CONSTRUCTION
RIDGE BOARD
1 x 4 COLLAR TIES
AT 481N. O/C IN THE
UPPER 1/3 OF THE
ATTIC SPACE
For S1 1 inch = 25.4 mm.
2 x 4 RAFTER TIES
AT EVERY RAFTER
NOTE: LOCATE RAFTER TIES AS NEAR AS
PRACTICAL TO THE TOP OF
CEILING JOISTS
Figure R802.3.1(2)
ROOF FRAMING WITH CEILING JOISTS NOT PARALLEL TO RAFTERS
1 x 4 COLLAR TIES AT
4 FT O/C IN THE UPPER
1/3 OF THE ATTIC SPACE
RIDGE BOARD
CONTINUOUS TIE PROVIDED BY
THE CEILING JOISTS
Figure R802.3.1(3)
ROOF FRAMING WITH CEILING JOISTS PARALLEL TO RAFTERS
8-6
2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY
WALL CONSTRUCTION
TABLE R602.3(1)—continued
FASTENER SCHEDULE FOR STRUCTURAL MEMBERS
DESCRIPTION OF BUILDING
1 SPACING OF FASTENERS
MATERIALS
DESCRIPTION OF FASTENERS. `. ° i Edges (Inches) Intermediate supports" (Inches)
Wood structural panels,
subfloor, roof and wall sheathing to framing, and particleboard wall sheathing to framing
5V-1/2"
6d common (2" x 0.113") nail (subfloor, wall)
8d common (21/2" x 0.131") nail (roof)[
6
128
19/32, -1"
8d common nail (21/2" x 0.131")
6
128
1'/8"-11 4,
10d common (3" x 0.148") nail or
8d (21/2" x 0.131") deformed nail
6
12
4.m
Other wall sheathing"
I/2" structural cellulosic fiberboard
sheathing
11/2" galvanized roofing nail 8d common
(21/2" x 0.131") nail; staple 16 ga., 11/2" long
3
6
25/32" structural cellulosic
fiberboard sheathing
13/4' galvanized roofing nail 8d common
(21/2" x 0.131") nail; staple 16 ga., 13/4' long
3
6
1/2" gypsum sheathing"
11/2" galvanized roofing nail;
6d common (2" x 0.131") nail; staple galvanized
1'/," long; 11/4' screws, Type W or S
4
8
5/8" gypsum sheathing°
13/4" galvanized roofing nail;
8d common (21/2" x 0.131") nail; staple galvanized
15/8" long; 15/8" screws, Type W or S
4
8
Wood structural panels, combination subfloor underlayment to framing
3, ,, and less
6d deformed (2" x 0.120") nail or
8d common (21/," x 0.131") nail
6
12
'/8"-1.,
8d common (2'/2" x 0.131") nail or
8d deformed (21/2" x 0.120") nail
6
12
11/8"-11/4"
10d common (3" x 0.148") nail or
8d deformed (21/2" x 0.120") nail
6
12
For SI: 1 inch = 25.4 mm, 1 foot = 304 8 rnm, 1 mile per hour = 0.447 m/s: Iksi = 6.895 MPa.
a. All nails are smooth -common, box or deformed shanks except where otherwise stated. Nails used for framing and sheathing connections shall have minimum aver-
age bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 Icsi for shank diameters larger than 0.142 inch but not larger
than 0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less.
b. Staples are 16 gage wire and have a minimum 7/,6 -inch on diameter crown width.
c. Nails shall be spaced at not more than 6 inches on center at all supports where spans are 48 inches orgreater.
d. Four -foot -by -8 -foot or 4 -foot -by -9 -foot panels shall be applied vertically.
e. Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For regions having basic wind speed of 110 mph or greater, 8d deformed (2V/," x 0.120) nails shall be used for attaching plywood and wood structural panel roof
sheathing to framing within minimum 48 -inch distance from gable end walls, if mean roof height is more than 25 feet, up to 35 feet maximum.
g. For regions having basic wind speed of 100 mph or less, nails for attaching wood structural panel roof sheathing to gable end wall framing shall be spaced 6 inches
on center. When basic wind speed is greater than 100 mph, nails for attaching panel roof sheathing to intermediate supports shall be spaced 6 inches on center for
minimum 48 -inch distance from ridges, eaves and gable end walls: and 4 inches on center to gable end wall framing.
h. Gypsum sheathing shall conform to ASTM C 79 and shall be installed in accordance with GA 253. Fiberboard sheathing shall conform to ASTM C 208.
i. Spacing of fasteners on floor sheathing panel edges applies to panel edges supported by framing members and required blocking and at all floor perimeters only.
Spacing of fasteners on roof sheathing panel edges applies to panel edges supported by framing members and required blocking. Blocking of roof or floor sheath-
ing panel edges perpendicular to the framing members need not be provided except as required by other provisions of this code. Floor perimeter shall be supported
by framing members or solid blocking.
•:• The fastener schedule provides minimum nailing requirements (i.e., size, spacing) for connecting building elements
used in wood frame construction. For wood structural panels, both edge nailing and intermediate (field) nailing are
specified. In addition to the nailing for wood structural panels, fasteners are specified for gypsum wall sheathing, cel-
lulosic fiberboard wall sheathing and combination subfloor underlayment.
2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY 6-5
ROOF -CEILING CONSTRUCTION
TABLE R802.5.1(9)
RAFTER/CEILING JOIST HEEL JOINT CONNECTIONSa'b,c,d,e,t,g
RAFTER
SLOPE
RAFTER
SPACING
(inches)
GROUND SNOW LOAD (psf)
70
30 1 50
Roof span (feet)
12
20
28
36
12
20
28 36
12
20
28
36
Required number of 16d common nailsab per heel joint splices".°4
12
4
6
8
11
5
8
12
15
6
11
15
20
3:12
16
5
8
11
14
6
11
15
20
8
14
20
26
24
7
11
16
21
9
16
23
30
12
21
30
39
12
3
5
6
8
4
6
9
11
5
8
12
15
4:12
16
4
6
8
11
5
8
12
15
6
11
15
20
24
5
9
12
16
7
12
17
22
9
16
23
29
12
3
4
5
7
3
5
7
9
4
7
9
12
5:12
16
3
5
7
9
4
7
9
12
5
9
12
16
24
4
7
10
13
6
10
14
18
7
13
18
23
12
3
3
4
5
3
4
5
7
3
5
7
9
7:12
16
3
4
5
6
3
5
7
9
4
6
9
11
24
3
5
7
9
4
7
10
13
5
9
13
17
12
3
3
3
4
3
3
4
5
3
4
5
7
9:12
16
3
3
4
5
3
4
5
7
3
5
7
9
24
3
4
6
7
3
6
8
10
4
7
10
13
12
3
3
3
3
3
3
3
4
3
3
4
5
12:12
16
3
3
3
4
3
3
4
5
3
4
5
7
24
3
3
4
6
3
4
6
8
3
6
8
10
For SI: 1 'nch = 25.4 mm, 1 foot = 304.8 nun, 1 pound per square foot = 0.0479kPa.
a. 40d box nails shall be permitted to be substituted for I6d common nails.
b. Nailing requirements shall be permitted to be reduced 25 percent if nails are clinched.
c. Heel joint connections are not required when the ridge is supported by a load-bearing Will, header or ridge beam.
d. When intermediate support of the rafter is provided by vertical struts or purlins to a Ioadbearing wall, the tabulated heel joint connection requirements shall be per-
mitted to be reduced proportionally to the reduction in span.
e. Equivalent nailing patterns are required for ceiling joist to ceiling joist lap splices.
f. When rafter ties are substituted for ceiling joists, the heel joint connection requirement shall be taken as the tabulated heel joint connection requirement for
two-thirds of the actual rafter -slope.
g. Tabulated heel joint connection requirements assume that ceiling joists or rafter ties are located at the bottom of the attic space. When ceiling joists or rafter ties are
located higher in the attic, heel joint connection requirements shall be increased by the following factors:
Hc/HR
1/3
1/4
1/5
1/6
1/10 or less
Heel Joint Connection
Adjustment Factor
1.5
1.33
1.25
1.2
1.11
where:
tic= Height of ceiling joists or rafter ties measured vertically above the top of the rafter support walls.
HR = Height of roof ridge measured vertically above the top of the rafter support walls.
•:• This table contains requirements for the connection between roof rafters and ceiling joists to be used in areas with
ground snow loads of 30 psf (1.44 kPa) up to 70 psf (3.35 kPa). The connection is essential to resist the thrust in the
roof rafter where the ridge board does not provide vertical support of the roof rafter. Section R802.3 requires a de-
signed ridge beam if the roof slope is less than 3:12.
Adjustment factors for the heel joint connection, in Note g are limited to cases where the ceiling joists or rafter ties
are in the lower third of the attic space. When the ceiling joists or rafter ties are located higher in the attic space, lat-
eral deflection of the rafter below the rafter ties can become excessive and require additional engineering analysis
(see commentary, Section R802.3.1).
2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY 8-29
ROOF -CEILING CONSTRUCTION
TABLE R802.5.1(5)—continued
RAFTER SPANS FOR COMMON LUMBER SPECIES
Ground snow Toad=30 psf, ceiling attached to rafter, Ue = 240)
RAFTER
SPACING
(Inches)
SPECIES AND GRADE
DEAD LOAD =10 psf
DEAD LOAD = 20 psf
2x4
2x6
2x8
2x10
2x12
2x4
2x6
2x8
2x10
2x12
Maximum rafter spans'
(feet-
Inches)
(feet-
Inches)
(feet-
Inches)
(feet-
Inches)
(fest-
Inches)
(fest-
Inches)
(feet-
Inches)
(feet-
Inches)
(feet-
Inches)
(feet -
Inches)
Douglas fir -larch SS
7-3
11-4
15-0 .
19-1
22-6
7-3
11-3
14-2
17-4
20-1
Douglas fir -larch #1
7-0
10-5
13-2
16-1
18-8
6-4
9-4
11-9
14-5
16-8
Douglas fir -larch #2
6-8
9-9
12-4
15-1
17-6
5-11
8-8
11-0
13-6
15-7
Douglas fir -larch #3
5-0
7-4
9-4
11-5
13-2
4-6
6-7
8-4
10-2
11-10
Hem -fir SS
6-10
10-9
14-2
18-0
21-11
6-10
10-9,
13-11
17-0
19-9
Hem -fir #1
6-8
10-2
12-10
15-8
18-2
6-2
9-1
11-6
14-0
16-3
Hem -fir #2
6-4
9-7
12-2
14-10.
17-3
5-10
8-7
10-10
13-3
15-5
24
Hem -fir #3
Southern pine SS
5-0
7-1
7-4
11-2
9-4
14-8
11-5
18-9
13-2
22-10
4-6
7-1
6-7
11-2
8-4
14-8
10-2
18-9
11-10
22-10
Southern pine #1
7-0
10-11
14-5
17-6
20-11
7-0
10-6
13-2
15-8
18-8
Southern pine #2
6-10
10-2
13-2
15-9
18-5
6-4
9-2
11-9
14-1
16-6
Southern pine #3
5-4
7-11
10-1
11-11
14-2
4-9
7-1
9-0
10-8
12-8
Spruce -pine -fir SS
6-8
10-6
13-10
17-8
20-11
6-8
10-5
13-2
16-1
18-8
Spruce -pine -fir #1
6-6
9-9
12-4
15-1
17-6
5-11
8-8
11-0
13-6
15-7
Spruce -pine -fir #2
6-6
9-9
12-4
15-1
17-6
5-11
8-8
11-0
13-6
15-7
Spruce -pine -fir #3
5-0
7-4
9-4
11-5
13-2
4-6
6-7
8-4
10-2
11-10
Check sources for availability of lumber in lengths greater than 20 feet.
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479kPa.
a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the rafters
on the bearing walls, such as rafter ties, is provided at that location. When ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be
multiplied by the factors given below:
H Rafter Span Adjustment Factor
1/3 0.67
1/4 0.76
1/5 0.83
1/6 0.90
1/7.5 or less 1.00
where:
He = Height of ceiling joists or rafter ties measured vertically above the top of the rafter support walls.
HR = Height of roof ridge measured vertically above the top of the rafter support walls.
b. Span exceeds 26 feet in length.
❖ See the commentary for Sections R802.5 and R802.5.1 and Table R802.5.1(1).
•
8-22 2006 INTERNATIONAL RESIDENTIAL CODE® COMMENTARY
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PROVIDE DIAGRAMS AND
ENGINEERING LAYOUTS FOR
ROOF TRUSSES, BEAMS AND
FLOOR SYSTEMS PRIOR TO FRAMING
INSPECTIONS
CITY COPY
THjS BUILDING SUBJECT
TO FIELD INSPECTION. CORRECTIONS
REVIEWED FOR CODE COMPLIANCE
SPOKANE VALLEY BUI ING !VISION