HomeMy WebLinkAboutPermit Correspondence 2003-9-25
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BLOWING INSULATION
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BATTS AND BLANKETS
THERMAL PERFORMANCE (ATTIC APPLICATION)
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"This is my iniZlation:'Ol
When Installed In accordance with the man
ufacturer's recommendations, Knauf batts
and blankets will provide the full R value
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
MINIMUM
Il-VALUE* THICKNESS
To obtain an Installed insulation
insulation resistance should not be
(Il) of: less than:
Il-VALUE*
To obtain an
insulation resistance
(Il-value) of:
I R 38 1200"
I R 30HD 825"
I R 30 1000"
_1- R.)6 900"
I R 22" 650"
I R 21HD 550"
I R 19 6 25"**
I R 15HD 350"
I R13 'I 350"
I R11 I 350"
I R8 I 250"
R 50
R 44
R 38
R 30
R 26
R22
R 19
R13
R11
378 26 5 SF 1 058 Ibs 2350"
310 32 2 SF 8691bs 2000"
269 37 2 SF 7531bs 1775"
229 43 6 SF 6421bs 1550"
179 55 9 SF 501 lbs 1250"
155 64 6 SF 433lbs 11 00"
127 78 4 SF 3571bs 925"
109 92 0 SF 3041bs 800"
76 131 6 SF 213 Ibs 575"
6 2 I 161 3 SF 174 lbs 475"
Bag Weight-Nominal 28 lbs M,",mum 27 lbs
**R 18 In a 5 5" cav,ty Conforms to ASTM C 665 and
Federal SpecificatIOn HH I 521F
Th,s product conforms to the performance requirements of ASTM C 764 Type I and cancelled Federal SpeCificatIOn HH 11030B, Type I,
Class B R values are determined In accordance w,th C 687 and C 518
*"R' means resistance to heat flow The h'gher the R value the greater the insulating power Ask your seller for the fact sheet on R values
EQUIPMENT REQUIRED
To achieve labeled R valL'e, thiS product must be applied With a pneumatic blow
Ing machine and a corrugded hose With a minimum 25" Internal corrugation, a
mnlmum length of 150 ft and a diameter of at least 3" COils In the hose should
not be less than 36" In diameter Acceptable matenal feed rate IS 5 35
Ibs /mlnute Recommended feed rate IS 15 251bs /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
Il-V.lue Thickness
AttiC Area R ~lq at -:2:Olnches
Sloped Ceilings R at Inches
Walls R Z-/ at -6 Inches
"-
Floors (over an unheated crawl space) R <C)at/O Inches
Crawl Space Pen meter R at Inches
Date Installed 9-2 .5"-(73
Blown insulation has been Installed In conformance With the above
recommendations to proVide an R value of R
<.:;:;r
Y9
uSing
/ '2'_! 7 square feet
bags of thiS insulation to cover
of area ~ a minimum thickness of Z...D
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InSUl;.! c:O;ractor nature) - -J--.r---
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Company
Date
Inches
Home BUilder (s,gn~1!_e) - ...., ~
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Company
Date
BW AC 08 5/02
FRAMING ADJUSTMENT
To compensate for framing members, the number of bags per 1,000 sq
area to be Insulated should be as shown below
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I 2x4
R 60 I 2 x 6
I 2x8
2x4
R-50 I 2 x 6
I 2x8
I 2x4
R 44 I 2 x 6
I 2 x 8
2x4
2x6
2x8
2x4
2x6
2x8
2x4
2x6
2x8
2x4
2x6
2x8
2x4
2x6
2x8
2x4
2x6
2x8
2x4
2x6
2x8
R-38
R 30
R-26
R 22
R 19
R13
R 11
ft of
IAGS/MSF
U" O.c. FIlAMING
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
5 5
52
373
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
Contact Knauf Fiber Glass for more information
Knauf Fiber Glass, One Knauf Dnve, ShelbYVllle, IN 46176 (800) 8254434
CLOSED-CAVITY APPLICATION
(EXTERIOR SIDEWALL OR FLOORED
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Prrnted In USA
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