HomeMy WebLinkAboutPermit Correspondence 2004-4-23
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FIBER GL~ BLOWING
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BATTS AND BLANKETS
When Installed In accordance with the man-
ufacturer's recommendations, Knauf batts
and blankets will provide the full R-value
MINIMUM
~-VALUE* THICKNESS
To obtain an Installed insulation
insulation resistance should not be
(R) of: less than:
j" I 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-11 350"
R-8 250"
Bag Weight-Nominal 28 Ibs , Minimum 27 Ibs
**R 18 In aSS" cavity Conforms to ASTM C 665 and
Federal SpeCification HH 1-521F
EQUIPMENT REQUIRED
INSULATION
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
(R-value) of:
!lAGS PE~
1,000 SQ. FT.
The number of ba~s per
1,000 sq. ft. of netarea
should not be less than:
MINIMUM WEIGHT
PER SQ. FT.
The wei~ht per sq. ft.
of installed insulation
sohould not be less than:
MAXIMUM
NET COVERAGE
Contents of this ba~
should not cover
more than:
MINIMUM
THICKNESS
Installed insulation
should' not be
less than:
R-50
R-44
R-38
R-30
R-26
R-n
R-19
R-13
R-ll
378 26 5 SF 1 058 Ibs
310 32 2 SF 869 Ibs
269 37 2 SF 7531bs
229 43 6 SF 642 Ibs
179 55 9 SF 501 Ibs
15 5 64 6 SF 4331bs
127 78 4 SF 3571bs 925"
109 92 0 SF 3041bs 800"
76 131 6 SF 213 lbs 575"
6 2 161 3 SF 174 Ibs 475"
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ThiS product conforms to the performance requrrements of ASTM C 764, Type I, and cancelled Federal SpeCifICation HH-ll030B, Type I,
Class B R values are determined In accordance with C 687 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-value, thiS product must be applied with a pneumatic blow-
'ng machine and a corrugated hose with a minimum 25" Internal corrugation, a
nlnlmum length of 150 ft and a diameter of at least 3" COils In the hose should
not be less than 36'! In diameter Acceptable mateTlal 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-
mendations to provide a thermal resistance of
R-Value Thickness
AttiC Area. R-
Sloped Ceilings R-
Walls R-
Floors (over an unheated crawl space) R-
Crawl Space PeTlmeter R-
Date Installed
L;'z ~-oLj
Ljq at //Unches
I
at Inches
at Inches
at Inches
at Inches
Blown insulation has been Installed In conformance with the above
recommendations to provide an R-value of R- Y ~ uSing
"=S C/ bags of thiS insulation to cover .I O<gr/ square feet
..... /
of area at a minimum thickness of ~e::f:::> Inches
4~~~~--"7vf A;<~~
Insulation Cont~~y~~) / ~
rJ/..,J / ~ J?.r ~ 9 {:()/!,-
Company '--- I V' / ' , 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 BAGS/MSF
R-VAL'l DIMENSIONS 16" O.c. FRAMING
R-60 2x6 368
2x8 365
2x4 305
R-50 2x6 302
2x8 298
2x4 263
R-44 2x6 260
2x8 257
2x4 224
R-38 2x6 221
2x8 218
2x4 174
R-30 2x6 171
2x8 168
2x4 150
R-26 2x6 147
2x8 144
2x4 123
R-22 2x6 120
2x8 117
2x4 104
R-19 2x6 101
2x8 98
2x4 71
R-13 2x6 68
2x8 66
2x4 57
R-ll 2x6 55
2x8 52
BAGS/MSF
24" O.c. FRAMING
373
371
368
306
304
302
265
263
260
22 5
223
221
175
173
171
151
149
147
124
122
120
105
103
10.1
73
71
69
59
57
5 5
CLOSED-CAVITY APPLICATION
(EXTERIOR SIDEWALL OR FLOORED ATTICS)
Contact Knauf Fiber Glass for more information
Knauf Fiber Glass, One Knauf DTlve, ShelbYVllle, IN 46176 (800) 825-4434
PTlnted In USA