HomeMy WebLinkAboutPermit Correspondence 2003-8-18
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FIBER GLASS BLOWING INSULATION
BATTS AND BLANKETS
When Installed In accordance with the man
ufacturer's recommendations, Knauf batts
and blankets will provide the full R value
ft-VALUE*
. To obtain an
insulation resistance
(ft) of:
R 38HD
R 38
R 30HD
R 30
R 26
R 22
R 21HD
R 19
R 15HD
R13
Rll
R8
MINIMUM
THICKNESS
Installed insulation
should not be
less than:
1025"
1200"
8 25"
1000"
9 00"
6 50"
5 50"
6 25"**
3 50"
3 50"
3 50"
2 50"
~ag We,ght-Nomlnal2B Ibs Minimum 27 Ibs
**R 1B In a 5 5 cavity Conforms to ASTM C 665 and
Federal Spec,f,catlOn HH I 521F
EQUIPMENT REQUIRED
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THERMAL PERFORMANCE (ATTIC APPLICATION)
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The stated thermal resistance (R value) IS provided by installing In accordance with the manufacturer's instructIOns,
the reqUired number of bags per 1,000 sq ft of net area, at not less than the labeled minimum thickness Failure to
Install both the reqUired number of bags and at least the minimum thickness will result In lower insulation R value
ft-VALUE*
To obtain an
insulation resistance
(ft-value) of:
lAGS ~Eft
1,000 SQ. FT.
The number of ba!,:s per
1,000 sq. ft. of net area
should not be less than:
I MAXIMUM
NET COVEftAGE
C:o~tents of this ba!,:
should not cover
I more than:
MINIMUM WEIGHT
~Eft SQ. FT.
The wei!,:ht per sq. ft.
of installed insulation
should not be less than:
MINIMUM
THICKNESS
Installed insulation
should not be
less than:
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R 50
R 44
R 38
R 30
R 26
R22
R 19
R13
Rll
378 26 5 SF 1 058 Ibs
310 32 2 SF 869 Ibs
269 37 2 SF 753 Ibs
229 43 6 SF 6421bs
17 9, 55 9 SF 5011bs,
15 5 64 6 SF 4331bs
127 78 4 SF 357lbs
109 92 0 SF 304 Ibs
76 131 6 SF 213 Ibs - I 575"
6 2 161 3 SF 1741bs I 475"
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ThIS product conforms to the performance reqUirements of ASTM C 764 Type I and cancelled Federal Spec,flcatlon HH 11030B Type I,
Class B R values are determined In accordance w,th C 6B7 and C 518
*"R" means reSistance to heat flow The higher the R value, the greater the insulating power Ask your seller for the fact sheet on R values
To achieve labeled R valL'e, thiS product must be applied With a pneumatic blow
ng machine and a corrugded hose With a minimum 25" Internal corrugation, a
lInlmum length of 150 ft and a diameter of at least 3" COils In the hose should
not be less than 36" In diameter Acceptable material feed rate IS 5 35
Ibs /mlnute Recommended feed rate IS 1525 Ibs /mlnute
BUILDER'S INSULATION STATEMENT
Batts and/or blankets have been Installed In conformance With the above recom
mendatlons to proVide a thermal resistance of
R-Value Thickness
AttiC Area R '19 at Winches
Sloped Ceilings R at Inches
Walls R 2-1 at 6 Inches
Floors (over an unheated crawl space) R =?O at 10 Inches
Crawl Space Perimeter R at Inches
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Date Installed /
Blown insulation has been Installed In conformance With the above
recommendations to prOVide an R value of R y 9 uSing
7 <:' bags of thiS insulation to cover J 2- t.y square feet
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of area at a minimum thickness of L (') Inches
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Home BUilder (Signature)
Company '--\0-...
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BW AC 08 5/02
Date
FRAMING ADJUSTMENT
To compensate for framing members, the number of bags per 1,000 sq ft of
area to be Insulated should be as shown below
: JOIST
ft-VALUE I DIMENSIONS
R 60 2x6
2x8
2x4
R 50 2x6
2x8
2x4
R 44 2x6
2x8
2x4
R 38 2x6
2x8
2x4
R 30 2x6
2x8
2x4
R 26 2x6
2x8
2x4
R22 2x6
2x8
2x4
R 19 2x6
2x8
2x4
R13 2x6
2x8
2x4
R 11 2x6
2x8
IAGS/MSF
1'" O.c. FftAMING
372
368
365
305
302
298
263
260
257
224
221
218
174
171
168
150
147
144
123
120
117
104
101
98
71
68
66
57
55
52
IAGS/MSF
24" O.c. FftAMING
37,3
371
368
306
304
302
265
263
260
225
223
221
175
173
171
151
149
147
124
122
120
105
103
101
73
71
69
59
57
55
CLOSED-CAVITY APPLICATION
(EXTERIOR SIDEWALL OR FLOORED ATTICS)
Contact Knauf Fiber Glass for more information
Knauf Fiber Glass, One Knauf Drive, Shelbyvllle, IN 46176 (800) 8254434
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