HomeMy WebLinkAboutPermit Correspondence 2003-3-14
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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
It-VALUE* THICKNESS
To obtain an Installed insulation
insulation resistance should not be
(It) of: less than:
\ -
R 38
R 30HD
\ R 30
\ R 26
I - R 22
I R 21HD
I R 19
I R 15HD
I R 13
I R 11
l R 8
1200"
8 25"
1000"
9 00"
6 50"
5 50"
6 25"**
3 50"
3 50"
3 50"
2 50"
Bag Welght-Nomlnal28lbs Minimum 27 Ibs
**R 18 In aSS 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
It-VALUE.
To obtain an
insulation resistance
, (It-value) of:
IAGS!"EIt
1,000 SQ. FT.
The number of ba!:s per
1,000 sq. ft. of net area
hould not be less than:
MAXIMUM (~i
NET COVEItAGE \ .}i
Contents of this ba~:~
should not cover v,(
more than: .'} .
MINIMUM .wEIGHT
!"EIt-SQ. FT.
. The wei!:ht.per sq:.ft.
of installed" ins~lation
should not be less than:
MINIMUM
THICKNESS
Installed insulation
should not be
less than:
R 50
R 44
R 38
R 30
R 26
R22
R 19
R13
R 11
378 26 5 SF 1 0581bs
310 32 2 SF 869lbs
269 37 2 SF 7531bs
229 43 6 SF 6421bs
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"
62 161 3 SF 1741bs 475"
II
,
,
II
ThiS product conforms to the performance requrrements 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 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
19 machine and a corrugated hose With a minimum 25" Internal corrugation, a
lIn1mum 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 1525 lbs /mlnute
~
B U I L D E R 'S INS U L A T ION'S T A'T E MEN T
~"':.
Batts and/or blankets have been Installed In conforfnance With the above recom
mendatlons to prOVide a thermal resistance of
It-Value Thicl\ness
t;? at UJ Inches
at Inches
at Inches
1\
at i11:~es
at Inches
AttiC Area R
Sloped Ceilings R
Walls R
Floors (over an unheated crawl space) R
Crawl Space Perimeter R
;;> 'C-
Date Installed _") - / ,7' () 'S
Blown insulation has been Installed In conforma~~wlth the above
recommendations to prOVide an R value of R 7 '1 uSing
7 tfi1 bags of thiS InSulatlo~o cover C(r 0 square feet
of area at a minimum thickness of ~ Inches
Insulatl~::Y ~ ~(1"J/~
Company ~./ . / ___ )
.?:>A ' ./ L/'1 ~ /~ ~~ r.L4---'-
Home BUilder (signature)
~
BW AC 08 5/02
Date
Date
FRAMING ADJUSTMENT
To compensate for framing members, the number of bags per 1,000 sq ft of
area to be Insulated should be a~ shown below
I JOIST
It-VAli 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 IAGS/MSf
11'" O.c. fltAMING 24" O.c. fltAMING
372
368
365
305
302
298
263
260
257
224
221
218
174
171
168
150
147
144
123
120
11 7
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
CLOSED CAVITY APPLICATION
(EXTERIOR SIDEWALL OR FLOORED ATTICS)
Contact Knauf Fiber Glass for more information
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Knauf Fiber Glass, One Knauf Dnve, Shelbyville, IN 4617.E~00) 825
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Printed In USA