HomeMy WebLinkAboutConditions of PermitcoNDrilo NS OF PERMIT
BLRE-07 -24-877 8
JON & LINDSAY DUFFY
Single-family dwelling w/ attached garage
1360 CR 331, Silt
21791 5300489
1) ALL WORK SHALL COMpLy W|TH THE 2015 TNTERNATTONAL RESTDENTTAL CODE (l.R.C.)AND 2018
INTERNATIONAL ENERGY CONSERVATION CODE (I.E.C.C.)
2) PROPOSED IMPROVEMENTS ARE SUBJECT TO ALL APPLICABLE ITEMS CONTAINED IN THE
ATTACHED "GARFIELD COUNry BUILDING REOUIREMENTS'. NUMBER REFERENCES NOTED ON
PLANS REFER TO SPECIFIC ITEMS ON THIS LIST.
3) ELECTRICAL PERMITTING AND INSPECTIONS BY COLORADO STATE ELECTRIC BOARD. ELECTRICAL
ROUGH-IN APPROVAL IS REOUIRED AT FRAME INSPECTION. ELECTRICAL FINAL APPROVAL IS
REOUIRED FOR FINAL INSPECTION & CERTIFICATE OF OCCUPANCY.
4) ALL EXTERTOR LIGHTING TO BE DOWNCASTAND SHIELDED.
5) WILDFIRE N/lTlcATlON RECOMMENDATIONS: SHOULD COI\4PLY WITH WILDFIRE MITIGATION AND
DEFENSIBLE SPACE RECOMMENDATIONS PER COLORADO STATE FOREST SERVICE AND LOCAL FIRE
DISTRICT. PLEASE REFER TO THE GARFIELD COUNTY COMMUNIry DEVELOPN/IENT WEBSITE FOR
ADDITIONAL I NFORMATION.
6) OPEN HOLE SOTLS REPORT REOUTRED AT FOOTTNG TNSPECTTON AND PRIOR TO ANY CONCRETE
POUR. GEOTECH MUST INCLUDE COMPACTION REPORT FOR ANY STRUCTURAL FILL. 3,000 PSF soil
bearing capacity specified by CTL THOMPSON in their engineering investigation report dated August 5,
2022 (attached).
7) SPECIAL NOTICE TO OWNER BUILDER: OPTIONAL SHALLOW FOUNDATION DETAILS (STAMPED
AUGUST 27 ,2024) PROVIDED BY A LOCAL ENGINEER (DB STRUCTURAL DESIGN) MUST INCLUDE
INSULATION FROST PROTECTION IN ACCORDANCE WITH 2015 IRC COMN/ENTARY FIGURE R403.3(1)
AND TABLE R403.3(1) STAPLED TO THE FIELD COPY.
8) ALL HtcH STRENGTH BOLTTNG AND FIELD WELDING REOUIRES SPECIAL INSPECTOR. PROVIDE
APPROVAL REPORT AT FRAMING INSPECTION.
9) BLOWER DOOR TEST tS REOUtRED. MUST SUBMIT BLOWER DOOR TEST REPORT TO GARFIELD
COUNTY COMMUNIry DEVELOPMENT DEPT. OFFICE PRIOR TO SCHEDULING FINAL BUILDING
INSPECTION / C.O. FINAL.
10) SEPTIC SYSTEM REVIEW / APPROVALS: PRIOR TO BUILDING INSPECTION & CERTIFICATE OF
OCCUPANCY PROVIDE FINALAPPROVAL/SIGN-OFF FROM GARFIELD COUNTY'S PUBLIC HEALTH
DEPT.
1 1) PRESCR|pTtVE PATH USrNG 2018 rECC TABLE R402.1.2 HAS BEEN CHOSEN FOR ENERGY
COMPLIANCE OF THIS HOME DESIGN. MANUAL J REPORT STAPLED TO FIELD COPY FOR
REFERENCE. ALL NEW HOI\4ES TO HAVE WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM
INSTALLED (2015 IRC TABLE m1507.3.3(1)AND (2) SHOWN ON COVER SHEET.
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FOUNDATIONS
R403.3.1 Foundations adjoining frost'protected shallow
foundations. Foundations that adjoin frost-protected shallow
foundations shall be protected from frost in accordance with
Section R403.1.4.
* This section requires that foundations that adjoin
FPSFs be protected from frost according to the current
requirements of Section R403.1.4, which requires that
foundations extend below the frost line, be built on
solid rock, or use FPSF designs. Each method pre-
vents frost from heaving foundations. This language
prevents the attachment of FPSFs to reinforced float-
ing garage foundations, which may be permitted by
some local codes to be placed at shallow depths with-
out insulating for frost protection (i.e., the foundation
moves up and down with frost).
INSULATION DETAIL
FLASHING PER SECTION R703.8
ln
tical wall insulation shall extend between the
shallow foundation and the adjoining slab
Required horizontal insulation shall be continuous under the
adjoining slab foundation and through any foundation walls
adjoining the frost-protected shallow foundation. Where lnsu.
perature maintained at a minimum of 64"F (18'C) shall be
accordance with Figure R403.3(3) and Table R403.3(1). V
lation passes through a foundation wal1, it shall be either of a
type complying with this section and having bearing capacitv
equal to or greater than the structural loads imposed by the
building, or the building shall be designed and constructed
using beams, lintels, cantilevers or other means of transfer-
R403.3.1.1 Attachment to unheated slab-on-ground
ture. Vertical wall insulation and horizontal insulation
frost-protected shallow foundations that adjorn a
ground foundation that does not have 3 monthly mean
SLAB.ON-GROUND FOUNDATION FLOOR
PER SECTIONS R403.1 AND R5O6INSULATION PROTECTION PER SECTION R403.3.1
SLOPE FINAL GRADE PER SECTION
///t
D \\\
12 IN. MAX,
12|N. MrN.
ol
NOMINAL 4 IN.AND VERTICAL WALL INSUALTION"
WASHED GRAVEL OR CRUSHED
STONE DRAINED PER SECTION
R403.3.2 HORIZONTAL INSULATION"
HORIZONTAL INSULATION PLAN
--T
lcI
For SI: 1 inch = 25.4 mm.
a. SeeTableR403.3(l)forrequireddimensionsandR-vaiuesforverticalandhorizontalinsulationandminimumfootingdepth.
FIGURE R403.3(1)
INSULATION PLACEMENT FOR FROST-PROTECTED FOOTINGS IN HEATED BUILDINGS
* See the commentary to Section R403.3.
a/
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FOUNDATION
PERII\4ETER
4-24 2015 INTERNATIONAL RESIDENTIAL CODE@ COMMENTABY
HORIZONTAL INSULATION DIMENSIONS
PER FIGURE R403.3(1) (inches)
HORIZONTAL INSULATION
R.VALUE","
B cAt corners A
VERTICAL
INSULATION
R-VALUECd Along walls
MINIMUM FOOTING
DEPTH, D
(inches)
Not required Not required Not requiredNot required Not required4.5t2
Not requiredNot required Not required Not required5.6 Not requiredt42,000
24 404.9 126.7 t.716
t2 .A 406.s 8.67.8T6
60lt.2 24 309.0 8.016
36 6013.1 2410.1 10.5164,000
cottJbtno/r'"w7
TABLE R403.3(1)
MINIMU M FOOTING DEPTH AND INSULATION REQUIREMENTS FOR FROST-PROTECTED FOOTINGS IN HEATED BUILDINGS"
buitding loads such that the structural loads of the build-
do not bear on the insulation.
This section requires that a building with a FPSF be
insulated to current FPSF requirements even where an
unheated garage or other slab-on-ground is attached
to it. The vertical and horizontal insulation must be in
accordance with Figure 403.3(3) and Table R403.3(1)
and be continuous through the foundation of the
unheated structure. The vertical wall insulation must
extend between the FPSF and the adjoining slab foun-
dation, and any required horizontal insulation must be
continuous through any foundation walls adjoining the
FPSF. No frost penetration or differential movement
occurred with this construction in a HUD demonstra-
tion in Fargo, North Dakota. Deep foundations of
unheated garages have been attached to hundreds of
other buildings built on FPSFs in the U.S. ln most
cases the FPSF insulation has been placed continu-
ously between the garage floor and the house FPSF;
however, the insulation has not been continuous
through the foundation walls of the unheated struc-
tures. ln these buildings, no differential movement
between the deep and shallow foundations has been
reported.
lnsulation passing through a foundation wall must
comply with the requirements of Section R403.3, i.e., it
must meet ASTM C57B and the requirements of Table
R403.3(1), and the insulation must be of a type that
has sufficient compressive strength to carry the load oftf'" building. Alternatively, the building must be
oesigned to carry those loads over the insulation and
not bear on it.
R403.3.1.2 Attachment to heated structure. Where a frost-
protected shallow foundation abuts a structure that has a
monthlY mean temDerature maintained at a minimum of 64'F(18'C), horizontal insulation and vertical wall insulation shall
not be required between the frost-protected shallow founda-
uon and the adjoining structure. Where the frost-protected
2015 INTERNATIoNAL RESIDENTIAL coDE@ cOMMENTARY
shallow foundation abuts the heated structure, the horizontal
insulation and vertical wall insulation shall extend along the
adjoining foundation in accordance with Figure R403.3(4) a
distance of not less than Dimension A in Table R403.3(1).
Exception: Where the frost-protected shallow foundation
abuts the heated structure to form an inside corner, vertical
insulation extending along the adjoining foundation is not
required.
* This section stipulates that additions built on FPSFs
need not be insulated where they join a heated struc-
ture because heat from both structures keeps the
ground from freezing. However, where the FPSF abuts
the heated building, the horizontal and vertical insula-
tion must extend along the adjoining foundation to pre-
vent cold from intruding under the slab through the
foundation wall. The dimension of the insulation is
related to the width of the horizontal insulation. This
technique was shown to be effective by the U.S. Army
Corps of Engineers Cold Regions Research and Engi-
neering Laboratory (CRREL)on a FPSF addition to an
airport control tower with a deep foundation in a severe
Alaskan climate with a 13-foot (3962 mm) frost line.
An abutment at an inside corner is an exception. ln
this condition, both the building and the addition heat
the ground, and extra insulation is not needed.
R403.3.2 Protection of horizontal insulation trelow
ground. Horizontal insulation placed less than 12 inches (305
mm) below the ground surface or that portion of horizontal
insulation extending outward more than 24 inches (610 mm)
from the foundation edge shall be protected against damage
by use of a concrete slab or asphalt paving on the ground sur-
face directly above the insulation or by cementitious board,
plywood rated for below-ground use, or other approvedmate-
rials placed below ground, directly above the top surface of
the insulation.
* This protection for the insulation prevents damage due
to excavating (e.9., for landscaping purposes).
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