1996, 03-04 Permit App: 92001165 ResidenceF.J
((1mjttli�r Cagincering
raa4on services
E. 8620 44th
Phone (509) 026-6217
Spokane, WA 99206
FAX (509) 928-8689
RADON SYSTEM SPECIFICATTMR _ RP(*Awv rnuNTV
t
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 slab.
2.
The pipe shall be a aftimum d
ameter of 4". meet AASHTO
M252, have perforations no wier
than 1/16" and have a
tf
minimum of 2.5 square inches
total perforations per
linear foot of pipe.
3.
There shall be a min#run of 1)
linear feet of perforated
pipe per hundred square feet
f slab floor space.
4.
The pipe shall be laid in a c
ntinuous loop. connected at
both ends to the solid stack
fent pipe.
5.
Any slab area, which is large
than 10 square feet, which
is isolated from other slab a
eas by footings or other
barriers, shall have a perfor
ted pipe installed to the
above specifications. (The p
pe can be a single length
rather than a connected loop
If the area is too small or
narrow to accomodate a connec
ed loop.)
G.
A stack vent of ABS, schedule
40, minimum size 4", shall
be connected to the sub -slab
iping and proceed upwards
to an exit location as the roof,
and extending 14" above
the roof. The pipe scall be
abeled "radon vent" every
16" or less for its full lenq
h. The pipe's attic
location shall allow s minimum
of 4' of head room. When-
ever possible this exit locat
on shall be on the backside
of the roof.
7.
Any elbows in the st&4tk vent
)iping shall have a
centerline radius mintwum of
1.5 by pipe width.
8.
An inline centrifugal fan, mi
imum 114 cfm @ 3/8" W.C.,
UL listed, manufactured speei
ically for radon mitigation,
maximum sone level 2.1, shall
be installed in the exhaust
line, in the attic.
9.
Couplings to connect the vent
piping to the fan shall be
elastomeric PVC, Ferneo serie
1056 or equal.
10.
The fan shall be hard -wired a
d the breaker labeled "radon
fan".
11.
All penetrations and joints i
the concrete floor slab
below grade shall be sealed w'th
caulk or grout.
12.
A notice shall be permanently
attached to the electrical
panel advising the owner or o
cupant about the radon
system and that he/ahs shall
est the home for radon
annually. The notice shall i
clude Cavalier's name and
phone number.
13.
All craftsmanship shall be of
high quality.
i
I
. RtTEEGIIOAND OPENINGSBETWEEN
A DVVEL
ING
A
N
D PRN
ATE GARAGE SHALL
HALL HAVE
Materials approved tor one-hour as -a, ' zh'o construction on the garage side; and
2) No openings other than a CLii cczIng :t-rc,r.'ng(oof ox saber:
than 20 minutes•
• a) 1 -3/8" solid woad, or ratection raiinp. of not lei
vtn an approvediire p
iw _.bi Qne h�_,.._ .
4( R Srnith
THESE PRAMS HAV b IN REVIEWEC'
BY
ON 3-6 a-
•— -SIM
-
�aualirr hrpnr1ian
Spokane, Ida 99206
•
1
1
1
1
basement
1
.
slab on grage
- t
1
1 401 2 E 25th
= Radon Vent_
•
OM as
garage
Phone 509 926-6217 Fax 509 928-8689
Legend for Radon mitigation system
_.perforated pipe beneath slab
0 solid 4WABS stack vent pipe
RADON SYST E n SPECIFICATIONS ATT.
RADON rilTIbriTION-
This radon mitigation system is
designed only For the speaif la Job -
site address designated. The system
Is not guaranteed unless installed
by Cavalier Corporation
Joh silo oddrew 1 401 2 E 25th Ct
budded- u R Smith
Sq Ft <1 800
•-T c;J0 - r l:Q �f7
Worn
orrJ ' 4 a t e
Environmental Protection Ageiioy.t4Fi''EP`410044