HomeMy WebLinkAboutPermit Correspondence 2003-3-14
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BATTS AND BLANKETS
FIBER GLASS BLOWING INSULATION
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 1200"
R-30HD 825"
R-30 1000"
R-26 900"
R-n 650"
R-21HD 550"
R-19 625"**
R-15HD 350"
R-13 350"
R-ll 350"
R-8 250"
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
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
R-VALUE*
To obtain an
insulation resistance
(It-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:
MINIMUM
THICKNESS
Installed insulation
should not be
less than:
R-60 37 8 26 5 SF 1 058 Ibs
R-50 31 0 32 2 SF 8691bs
R-44 269 372 SF 7531bs
R-38 n 9 436 SF 6421bs
R-30 179 559 SF 5011bs
R-26 155 646 SF 4331bs
R-22 12 7 784 SF 3571bs
R-19 109 92 0 SF 3041bs 800"
R-13 76 131 6 SF 213 Ibs 5 75"
R-ll 62 1613 SF 1741bs 475"
ThiS product conforms to the performance reqUirements of ASTM ( 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 ~e greater the insulating power Ask your seller for the fact sheet on R values
[) -
~~o. ,aMING ~t'~ENT
~
To achieve labeled R-value, thiS product must be applied With a pneumatic blow-
Ing machine and a corrugated hose With a minimum 25" Internal corrugation, a
Inlmum length of 150 ft and a diameter of at least 3" COils In the hose should
.lot be less than 36" In diameter Acceptable matenal feed rate IS 5-35
Ibs /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
R-Value Thickness
AttiC Area R- Lf9 at 1-Qnches
I Sloped Ceilings R- at Inches
Walls R. at Inches
Floors (over an unheated crawl space) R- at Inches
I Crawl Space Pen meter R. at Inches
Date Installed 3 -/ ~ 6 ~
Blown insulation has been Installed In conformance With the above
recommendations to prOVide an R-value of R- uSing
~ t; bags of thiS insulation to cover &~ Quare feet
of area at a minimum thickness of "7 f'";> Inches
Ilnsulat:A10~~~~
Company , ~ J ..... ) ..I Date
/') /). A ~ r .);~ G CJ?-? ...,
Home BUilder (slglature) -.. . - I.
Company
BW-AC-08 5/02
Date
MAXIMUM
NET COVERAGE
Contents of this ba!:
I should not cover
I more than:
....l....-..-
MINIMUM WEIGHT
PER SQ. FT.
The wei!:ht per sq. ft.
of installed insulation
should not be less than:
III
II
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 IlAGs/MsF IlAGs/MsF
R-VALUE DIMENSIONS 16" O.c. FRAMING 24" O.c. FItAMING
I
R-60 2x6 368 371
2x8 365 368
2x4 305 306
R-50 2x6 302 304
2x8 298 302
2x4 263 265
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 101 103
2x8 98 101
2x4 71 73
R-B 2x6 68 71
2x8 66 69
2x4 57 59
R-ll 2x6 55 57
2x8 52 55
CLOSED-CAVITY APPLICATION
(EXTERIOR SIDEWALL OR FLOORED ATTICS)
Contact Knauf Fiber Glass for more information
Knauf Fiber Glass, One Knauf Dnve, shelbyvllle, IN 46176 (800) 825-4434
Pnnted In USA