HomeMy WebLinkAboutPermit Correspondence 2003-9-8
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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
MINIMUM
R-VALUE* THICKNESS
To obtain an Installed insulation
insulation resistance should not be
(R) of: less than:
R-38
R-30HD
R-30
R-26
R.22
R-21HD
R-19
R-15HD
R-13
R-ll
R-8
1200"
8 25"
1000"
9 00"
6 50"
5 50"
6 25"**
3 50"
3 50"
3 50"
2 50"
Bag Weight-Nominal 28 Ibs , Minimum 27 Ibs
**R 18 In a 5 5" cavity (onforms to ASTM ( 665 and
Federal SpeCification HH.I-521F
EQUIPMENT REQUIRED
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THERMAL PERFORMANCE (ATTIC APPLICATION)
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
(R-value) of:
BAGS PER
1,000 SQ. FT.
The number of ba~s per
1,000 sq. ft. of net area
should not be less than:
R-50
R-44
R-38
R-30
R-26
R.22
R-19
R-13
R-ll
. I
378 26 5 SF 1 058 Ibs 2350"
310 32 2 SF 8691bs 2000"
269 37 2 SF 753lbs 1775"
229 43 6 SF 642 lbs 1550"
179 55 9 SF 501 lbs 1250"
15 5 64 6 SF 433 Ibs. 1100"
127 78 4 SF 3571bs 925"
109 92 0 SF 3041bs 800"
76 131 6 SF 213 lbs 575"
62 161 3 SF 174 lbs 4 75~
ThiS 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 With (687 and ( 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-vaIL'e, thiS product must be applied With a pneumatic blow-
Ing machine and a corrug"ted hose With a minimum 25" Internal corrugatIOn, a
TIlnlmUm 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
lbs /mlnute Recommended feed rate IS 15-25 Ibs /mlnute
BUILDER'S INSULATION STATEMENT
Batts and/or blankets have been Installed In conformance With the above recom-
mendatIOns to proVide a thermal resistance of
Sloped Ceilings R- at Inches
Walls R- at Inches
Floors (over an unheated crawl space) R- at Inches
Crawl Space Perimeter R- at Inches
Date Installed 9~)( r;;"<>
L/ - -
Blown insulatIOn has been Installed In conformance With the above
recommendations to prOVide an R-value of R- :<: ~ uSing
~ "-7 bags of thiS insulation to cover "'/.5' -75square feet
of area at a minimum thickness of ,/ r-:... Inches
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Ins0co~ctQUslg~~ J ~J-
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, Company "-- , Date
Home BUilder (signature)
Company
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
i JOIST
ft.VALu'E DIMENSIONS
I
BAGS/MSF BAGS/MSF
16" O.c. FRAMING 24" O.c. FRAMING
2x4 372 373
R-60 2x6 36.8 371
2x8 365 36.8
2x4 305 30.6
R-50 2x6 302 30.4
2x8 29.8 302
2x4 263 26.5
R-44 2x6 260 263
2x8 257 260
2x4 224 225
R-38 2x6 221 223
2x8 218 221
2x4 174 175
R-30 2x6 171 173
2x8 168 171
2x4 150 151
R-26 2x6 147 149
2x8 144 147
2x4 123 124
R-22 2x6 120 122
2x8 11.7 120
2x4 104 105
R-19 2x6 101 10.3
2x8 98 101
2x4 71 73
R-B 2x6 6.8 71
2x8 66 69
2x4 57 59
R-ll 2x6 5 5 57
2x8 52 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) 825-4434
Printed In USA