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Radon System
Radon system is to comply with Appendix F of the 2015 IRC
A sub-slab depressurization system (passive) is to be designed. The vent pipe shall be a minimum dia. of
3" and extend from the permeable layer under the lowest slab with a ' T ' fitting, through the conditioned
space of the homes, and out the roof. The exhaust shall be located as a penetration through the roof and
located on the non-street side. This exhaust vent shall be 2'-0" above the roof surface and 10'-0" away from
any openings or the adjacent building/unit.
An electrical box shall be installed in an accessible location along radon sytem vertical piping so possible
future vent pipe in-line fans can be added.
See sections on this sheet for vertical location of Radon system. See key floor plan on this sheet for
location of piping routing for Radon System.
Additional notes:
N1102.2.1 (R402.2.1) Ceilings with attic spaces.
When Secton N1102.1.1 R-38 shall be deemed to satisfy the requirement for R-49 wherever the full height
of uncompressed R-38 insulation extends over the wall top plate at the eaves.
N1102.2.2 (R402.2.2) Ceilings without attic spaces.
Where Secton N1102.1.1 would require insulation levels above R-30 and the design of the roof/ceiling
assembly does not allow sufficient space for the required insulation, the minimum required insulation for
such roof/ceiling assemblies shall be R-30. This reduction of insulation from the requirements of Secton
N1102.1.1 shall be limited to 500 square feet (46 m2) or 20 percent of the total insulated ceiling area,
whichever is less.
N1102.2.3 (R402.2.3) Eave baffle.
For air permeable insulations in vented attics, a baffle shall be installed adjacent to soffit and eave vents.
Baffles shall maintain an opening equal or greater than the size of the vent. The baffle shall extend over the
top of the attic insulation. The baffle shall be permitted to be any solid material.
N1102.2.4 (R402.2.4) Access hatches and doors.
Access doors from conditioned spaces to unconditioned spaces (e.g., attics and crawl spaces) shall be
weatherstripped and insulated to a level equivalent to the insulation on the surrounding surfaces. Access
shall be provided to all equipment that prevents damaging or compressing the insulation. A wood framed or
equivalent baffle or retainer is required to be provided when loose fill insulation is installed, the purpose of
which is to prevent the loose fill insulation from spilling into the living space when the attic access is opened,
and to provide a permanent means of maintaining the installed R-value of the loose fill insulation.
N1102.2.5 (R402.2.5) Mass walls.
Mass walls for the purposes of this chapter shall be considered above-grade walls of concrete block,
concrete, insulated concrete form (ICF), masonry cavity, brick (other than brick veneer), earth (adobe,
compressed earth block, rammed earth) and solid timber/logs.
N1102.2.7 (R402.2.7) Floors.
Floor insulation shall be installed to maintain permanent contact with the underside of the subfloor decking.
N1102.2.8 (R402.2.8) Basement walls.
Walls associated with conditioned basements shall be insulated from the top of the basement wall down to
10 feet (3048 mm) below grade or to the basement floor, whichever is less. Walls associated with
unconditioned basements shall meet this requirement unless the floor overhead is insulated in accordance
with Sections N1102.1.1 and N1102.2.7.
N1102.2.9 (R402.2.9) Slab-on-grade floors.
Slab-on-grade floors with a floor surface less than 12 inches (305 mm) below grade shall be insulated in
accordance with Table N1102.1.1. The insulation shall extend downward from the top of the slab on the
outside or inside of the foundation wall. Insulation located below grade shall be extended the distance
provided in Table
N1102.1.1 by any combination of vertical insulation, insulation extending under the slab or insulation
extending out from the building. Insulation extending away from the building shall be protected by pavement
or by a minimum of 10 inches (254 mm) of soil. The top edge of the insulation installed between the exterior
wall and the edge of the interior slab shall be permitted to be cut at a 45-degree (0.79 rad) angle away from
the exterior wall.
N1102.2.10 (R402.2.10) Crawl space walls.
As an alternative to insulating floors over crawl spaces, crawl space walls shall be permitted to be insulated
when the crawl space is not vented to the outside. Crawl space wall insulation shall be permanently
fastened to the wall and extend downward from the floor to the finished grade level and then vertically
and/or horizontally for at least an additional 24 inches (610 mm). Exposed earth in unvented crawl space
foundations shall be covered with a continuous Class I vapor retarder in accordance with this code. All joints
of the vapor retarder shall overlap by 6 inches (153 mm) and be sealed or taped. The edges of the vapor
retarder shall extend at least 6 inches (153 mm) up the stem wall and shall be attached to the stem wall.
N1102.2.11 (R402.2.11) Masonry veneer.
Insulation shall not be required on the horizontal portion of the foundation that supports a masonry veneer.
A section below thru the home shows the locations of all insulation/thermal envelope. On these sections, is shown
the location of vapor barrier/vapor retarder.
Eagle County lies in climate zone 6B.
This is a prescriptive method for insulation and code compliance to energy efficient systems
#1 Insulation values: show the chart that has the climate zone 6B.
Fenestration U-Factor=.32 with a resolution 3.11 C revising the U-factor to .30 in Eagle Co. and .30 in Town of Vail
Skylight U-Factor =.55
Ceiling R-Value = R-49
Wood Framed Wall R-Value 20+5 or 13+10 (20 in the wall cavity and 5 continuous)
Town of Vail, Avon, and Eagle have not adopted the R-5 continuous insulation requirement.
Floor R-Value = R30 (or insulation to fill the framing cavity, R-19 min)
Basement Wall R-Value =15/19 (R15 on the exterior or interior continuous OR R19 in the wall cavity)
The r-19 shall be permitted to be met with R-13 cavity insulation on the interior of the basement wall plus R-5
continuous on the interior OR exterior of the foundation wall
Slab R-Value =R10 for 4 feet from the edge of the slab measured horizontally or vertically
For heated slabs, R-5 insulation shall be added to the slab edge
Crawlspace wall R-Value = 15/19, which means R15 on the interior or exterior of the home or R-13 cavity insulation
on the interior of the basement wall plus R-5 continuous on the interior OR exterior of the foundation wall
#2 Fenestration and SHGCs (SHGCs are not required in this climate zone of 6)
Fenestration U-Factor=.32 with a resolution 3.11 C revising the U-factor to .30
#3 Area weighted U-factor Calculations
If some windows do not meet the U-factor .30 then an average of window areas can be calculated.
#4 Mechanical system design criteria.
1. Minimum winter design temp of -20 degrees F. (resolution to section R303.9)
2. Heat loss calculations are required for all dwelling units (resolution to section R303.9)
(Heat calcs, zones and layouts are due with the mech. permit application)
3. Minimum efficiency of main heat source is to be 92%
4. A whole house mechanical ventilation system (R303.4) is to be designed where the air infiltration rate
of a dwelling unit is 5 air changes per hour or less where tested with a blower door at a pressure of 0.2
inch w.c (50 Pa) in accordance with Section N1102.4.1.2, the dwelling unit shall be provided with
whole-house mechanical ventilation in accordance with Section M1507.3.
5. N1102.4.1.2 (R402.4.1.2) Testing.
The building or dwelling unit shall be tested and verified as having an air leakage rate of not exceeding 3 air
changes per hour in Zones 3 through 8. Testing shall be conducted with a blower door at a pressure of 0.2
inches w.g. (50 Pascals). Where required by the building official, testing shall be conducted by an approved
third party. A written report of the results of the test shall be signed by the party conducting the test and
provided to the building official. Testing shall be performed at any time after creation of all penetrations of the
building thermal envelope.
#5 Mechanical and service water heating system and equipment types, sizes and efficiencies.
Note and locate water heater or side arm off boiler. Label efficiency of water heater and whether gas or
electric is shown on plan set.
#6 Equipment and system controls.
Label location of thermostats and heating zones on key plans.
Provide at least on programmable thermostat
Initially programmed set point of heating no higher than 70 degrees and cooling no lower than 78
degrees
#7 Duct sealing, duct insulation, and pipe insulation and locations.
1. Show locations of ductwork in area not in the heated envelope (shown on drawings for mech. permit)
2. All ducts to be sealed in accordance with the International Mechanical Code (M1601.4.1)
3. Ducts outside building envelope to be insulated with R-8, all other ducts with R-6
4. Building framing cavities shall not be used as supply ducts
5. Duct tightness test (section 403.2.2)
Duct tightness test is not required if air handler and ducts are ALL located within conditioned space
Duct tightness shall be verified by
a) Post construction test
Leakage to outdoors:<8 cfm/per 100 s.f. pf conditioned floor area or
Total leakage:<12 cfm/ pre 100
b) Rough-in test
Total leakage <6 cfm/per 100 s.f. of conditioned floor area
test at a pressure differential of .1 in w.g. (25 Pa) across rough-in system
#8 Air sealing details:
General note: All exterior joints are to be caulked, gasketed, weather stripped, or otherwise sealed. Floor
plates and sheathing joints are to be sealed. Refer to chart for locations and methods.
WALL INSULATION:
TYPICAL EXTERIOR WALL
5.5" BLOWN-IN BATT (R-4.23 PER INCH). =R-23.27 (R-20 MIN)
TYPICAL FOUNDATION WALL AT LIVING SPACE
5.5" BLOWN-IN BATT (R-4.23 PER INCH). = R-23.27
2" DRAIN AND DRY ON EXT. OF FDN WALL = R-10.00
TOTAL WALL R-VALUE =R-37.27 (R-19 MIN)
TYPICAL SLAB EDGE/FROST WALL FOUNDATION WALL
2" DRAIN AND DRY ON EXT. OF FDN WALL = =R-10.00 (R-10 MIN)
UNDER SLAB INSULATION:
2" RIGID INSULATION =R-10.00 (R-10 MIN)
3/4" SLAB EDGE INSULATION =R-7.00 (R-7 MIN)
CANTILEVERED FLOOR INSULATION:
11 7/8" BLOWN-IN BATT (R-4.23 PER INCH) =R-50.23 (R-30 MIN)
ROOF INSULATION:
12.5" OF BLOWN-IN BATT IN RAFTER SPACE =R-52.22 (R-49 MIN)
(R-4.23 PER INCH)
PROVIDE CORRAGATED AIR BAFFLE IN EACH RAFTER SPACE TO ALLOW AIR
FLOOR FROM LOW TO HIGH ON SHED ROOF FORMS. INSULATION IS TO BE BLOWN-IN
TIGHT TO THE ROOF REMAINING ROOF RAFTER SPACE. IN AREAS WITH DROPPED
CEILINGS, KEEP INSULATION AT ROOF RAFTERS, CREATING TEMPERED ATTIC IN VOIDS
--PROVIDE A VAPOR RETARDER AT BOTTOM OF RAFTERS
ROOF INSULATION AT SOUTH ROOF FORM OVER THE EAST UNIT'S STAIR, THE ROOF
INSULATION SHALL BE DIFFERENT THAN TYPICAL AND THE ROOF WILL BE UNVENTED.
(SEE KEY PLAN BELOW FOR LOCATION)
ROOF BAFFLE IS TO BE DELETED TO PROVIDE AN UNVENTED ROOF FORM.
Section of the IRC R806.5.
1 The unvented atic is completely withing the Building Thermal Envlope
2 No interior Class I vapor retarder are installed in the ceiling side of the unvented
attic assembly or on the ceiling side of the unvented enclosed roof framing.
3 (No wood shingle are used)
4 In climate zone 6, any air imperviable insualtion shall be class II vapor retarder
coating or covering in the direct contact with the underside of the structural sheathing.
5 Insulation shall be located in accordance with the following:
5.1 Item 5.1.1.1, 5.1.2, 5.1.3, OR 5.1.4 shall be met, depending on the air permiably of
the insulation directly under the structural roof sheathing:
5.1.3 Where both air permable and air impermable insualtion are provided, the
air impermable insulation shall be in direct contact with the underside of the structural roof
sheathing
4.5" OF SPRAY ON CLOSED CELL INSUALTION (AIR-IMPERMABLE)
(R-6.8 PER INCH) =R-30.6
10" UNFACED BATT (AIR-PERMABLE)
(R-4.23 PER INCH) =R-30.0
=R-60.8 (R-49 MIN)
(R-4.23 PER INCH)
THIS UNVENTED ROOF ASSEMBLY SHALL ALSO BE USED AT WATERPROOF DECKS
OVER CONDITIONED SPACE.
-- A VAPOR RETARDER IS NOT REQUIRED AT UNVENTED RAFTERS AND DECK JOISTS
OF WATERPROOF DECKS
WINDOWS:
FIXED =U-0.30
OPERABLE (AWNING AND CASEMENT) =U-0.30
PATIO DOOR AND SLIDING DOOR UNITS =U-0.30
INSULATION SUBCONTRACTOR MUST VERIFY THAT THE R-VALUES/U-VALUES OF
PROPRIETARY PRODUCTS MEET OR EXCEEDS THE VALUES LISTED ABOVE AND THAT
INSTALLATION PERFORMED IS PER MANUFACTURER'S SPECIFICATION. ALL WALL
INSULATION SHALL COMPLETELY FILL STUD SPACES AND HAVE PROPER AIR-BARRIER
SHEATHING ON BOTH SIDES OF THE STUD SPACES.
INTERIOR WALLS ARE TO RECEIVE UNFACED SOUND ATTENUATION BATTS FOR ALL
WALLS THAT DIVIDE HABITABLE ROOM
(EXAMPLE: BEDROOM TO CLOSET WALL DOES NOT NEED SOUND INSULATION
BEDROOM TO HALLWAY OR BEDROOM TO BEDROOM DOES)
2X6 = R-19
2X4 = R-13
DESIGN INSULATION VALUE SUMMARY
PARTY
WALL
crawlspace
PROVIDE
VAPOR BARRIER
OVER GRADE
AND UP
FOUNDATION
WALL AT LEAST
6" AND
TAPE/SEAL TO
WALL. R-13 ON
THE EXTERIOR
WALLS OF
CRAWLSPACE.
R-49 IN THE
FLOOR JOISTS
ABOVE. (VAPOR
BARRIER
AGAINST THE
FLOOR
SHEATHING)
92% MIN. EFF. OF BOILER
FOR RADIANT INFLOOR HEATING SYSTEM
PROVIDE SIDE ARM FOR HOT WATER
92% MIN. EFF. OF BOILER
FOR RADIANT INFLOOR HEATING SYSTEM
PROVIDE SIDE ARM FOR HOT WATER
FLUE ROUTING FOR BOILER.
(JOG FLUE ABOVE FOUNDATIN WALL)
BOILER
FLUE
RADON STACK PIPING TO
RISE THRU FLOOR ABOVE IN
THIS LOCATION
RADON STACK PIPING
IN THIS LOCATION
MECHANICAL
W101
MECHANICAL
E102
PARTY
WALL
ROOF FORM
WITHOUT VENTING
970.328.5151
OFFICE
PO Box 1587,
Eagle, CO 81631
www.martinmanleyarchitects.com
Project
number
Date
REVISIONS
7/5/2017
3:35:29 PM
A0.3 ECO
SHEET
1670 2655
Davos
Trail
PERMIT
SET
04-28-17
Custom
Duplex at Vail Colorado
12" = 1'-0"
ECO SHEET NOTES
1/4" = 1'-0"
DESIGN INSULATION VALUES
1/8" = 1'-0"
1 LOWER LEVEL KEY PLAN
No. Description Date
1 Revision 1- BUILDING
DEPT COMMENTS
7-5-17
1/8" = 1'-0"
2 KEY ROOF PLAN
1
08/29/17