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H ESE PLANS HAVE BEEN -REVIEWED
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BY
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Kimpic Const
garage
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E 10018 Ferret Dr, Ponderosa
anbatier (Engineering
E. 8620 44th s
radon services
Spokane, WA 99206
Phone (509) 926-6217 FAX (509) 928-8689
E. 8620 49th Spokane, Ida . 99206
Phone 509 926-621 7 Fax 509 928-8689
Legend For Radon mitigation system
..._ _perforated pipe beneath slab
0 solid 1'ABS stack vent pipe
RADON SYSTEM SPECIFICATIONS ATT .
qz- 722.
RADON MITIGATION SYSTEM
This radon mitigation system is
designed only for Uhroifks Job -
site address designated. The system
rs not guaranteed unless installed
by Cavalier Corporation
Fob silo oddrvs+c: E 10018 Ferret Dr
buildor Kirnple Const
Sq Et < 1 800
Warr
Environmental Protecti
G U..�urs �`;ounty
W.23r92
ri. di =;Date
nc. •R P boi4
w
QIajittir ntneertng
radon services
E. 8620 44th
Phone (509) t#-6217
Spokane, WA 99206
FAX (509) 928-8689
RADON SYSTEM SPECIFICATIONS, SPOKANE COUNTY:
1. Perforated pipe shalt be installed within the native soil
or fill (sand, gravel or soil) at a minimum depth of 1"
below the intended sb.
2. The pipe shall be a Winimum diameter of 4". meet AASHTO
M252, have pertoratioss no wider than 1/16" and have a
minimum of 2.5 square inches of total perforations per
linear foot of pipe.
3. There shall be a min *tm of 10 linear feet of perforated
pipe per hundred squsd#e feet of slab floor space.
4. The pipe shall be laid in a continuous loop. connected at
both ends to the solid stack vent pipe.
5. Any slab area, which is larger than 10 square feet, which
is isolated from other slab areas by footings or other
harriers, shall have a perforated pipe installed to the
above specifications. (The pipe can be a single length
rather than a connected loop if the area is too small or
narrow to accomodate • connected loop.)
6. A stack vent of ABS, schedule 40, minimum size 4", shall
be connected to the seb-slab piping and proceed upwards
to an exit location oe the roof. and extending 14" above
the roof. The pipe shall be labeled "radon vent" every
16" or less for its fill length. The pipe's attic
location shall allow a minimum of 4' of head room. When-
ever possible this exit location shall be on the backside
of the roof.
7. Any elbows in the steek vent piping shall have a
centerline radius mimum of 1.5 by pipe width.
8. An inline centrifugal fan, minimum 114 cfm @ 3/8" W.C.,
UL listed, manufactured specifically for radon mitigation,
maximum sone level 2.$, shall be installed in the exhaust
line, in the attic.
9. Couplings to connect the vent piping to the fan shall be
elastomeric PVC, Fersco series 1056 or equal.
10. The fan shall be hard' -wired and the breaker labeled "radon
fan".
11. All penetrations and joints in the concrete floor slab
below grade shall be sealed with caulk or grout.
12. A notice shall be permanently attached to the electrical
panel advising the owner or occupant about the radon
system and that he/s1Mi shall test the home for radon
annually. The notic.shall include Cavalier's name and.
phone number.
13. All craftsmanship shall be of high quality.