HomeMy WebLinkAboutPermit Correspondence 2002-10-14
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Fiber Glass Blankets when
Installed according to the
manufacturer's recom-
mendations will provide the full
rated thermal resistance value
The manufacturer recommends that the Insulation be Installed at these minimum thicknesses
and maximum coverages to provide the levels of Insulation thermal resistance (R-value) shown
(Based on 45 Ib nominal net weight bag)
Blanket Insulation
R MInimum
Value Thlckness*
To obtain an Installed
insulation insulation
resistance should
(R)of notbe less than
R-38c lOX" ThIck
R-38 13" Thick
R-30c 8X" Thick
J - \ lOX" Thick
R-21 5)1" Thick
R-19 6W Thlckt
R-15 I_ 3)1"Thlck
R-13 '-'" 3Yz"Thlck
1-, R-l1 f3W1ThlCk
" ,
, ,*Thlcknes~ m,aYivary Check bag
1~' la bel _ _ -/-;,;,:;.,t ~ r \"
'1-_ 1".; ",!i_.! Ji
t R-17 3 In a'5)1'~cavlty
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Fiber Glass Blowing Wool Attic Insulation - 45 Ib Bag
R Minimum Bags Per Maximum Minimum
Value Thickness 1000 sq ft Net Coverage Wt Isq ft
To obtain an Installed The number of Contents of The weight
insulation insulation shall bags per 1000 this bag should persq ft
resistance' not be less sq ft of net not cover more of Installed
(Rlof than area should than insulation
not be less should not be
than less than
R-60 22)1" Thick 454 22 0 SQ ft 20421bs
R-SO 20" Thick 373 26 8 SQ ft 1 680 Ibs
R-44 18" Thick 321 31 1 SQ ft 1 446 Ibs
R-38 16" Thick 274 36 5 SQ ft 1 2331bs
R-30 13" Thick 217 46 2 SQ ft o 9751bs
R-26 llW Thick 186 53 7 SQ ft o 8381bs
R-22 9%" Thick 156 64 2 SQ ft o 7011bs
R-19 8)1" Thick 134 748 SQ ft o 6021bs
R-n 5i1," Thick 79 1268 SQ ft o 3551bs
Net Weight/Bag MInimum 411bs This product conforms to the performance requirements of
ASTM C764 Type I, Category 2 This product meets the Insulation Quality Standards of the
state of California
R means resl~tance to heat flow The higher the R-value. the greater the insulating power Ask your seller for the fact sheet on R-Values
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~ ' Insulation products hav~ been Installed In accordance with the above specifications to provide the R-values shown
.k
'" '- Batts and Rolls
Q R-value
___",,_Ceilings -g~
R -, ,
Walls Q-?-\
Q ~ \ \
Floors e - .~ (J
Thickness
13"
3 ;J~ '
Coverage Area
\ ;;l.O
,;tQ
BlOWing Wool
n R-value
K-L/C)
Thickness
an/!
Bags Used
.:J 'S , :.J
Coverage Area
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pan Date
/
Signature (Home BUilder)
Company
Date
This home is insulated with Johns Manville Fiber Glass Building Insulation
BIC 186 (Willows) 8/98
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This i$ Fiber Glass
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Blowifig Wool Insulation
FTC Fact Sheet
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High Detnsity Fiber Glass Building Insulation
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Bag WeIght 45 Ibs Nominal (MInimum Net Weight of Insulation In thIs package IS 41 Ibs)
l
t
R
Value
Minimum
Thickness
Bags Per
1000 sq ft
Maximum
Net Coverage
Minimum
Wt Isq ft
,
r
To obtain an
insulatIOn I
resIstance I
(R) of
Installed
insulatIOn shall
not be less
than
The number of
bags per 1000
sq ft of net
area should
not be less
than
Contents of
thIs bag should
not cover more
than
The weIght
persq ft
of Installed
insulatIOn
should not be
less than
R-60
R-50
R-44
R-J8
R-JO
R-26
R-22
R-19
R-ll
22%" Thick
20" ThIck
18" ThIck
16"Thlck
13" Thick
11%" Thick
9%" Thick
8 %" ThIck
5Y4" Thick
454
373
321
274
21 7
186
156
134
79
22 0 sq ft
26 8 sq ft
31 1 sq ft
36 5 sq ft
46 2 sq ft
53 7 sq ft
64 2 sq ft
748 sq ft
126 8' sq ft
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20421bs
1 680 Ibs
1 446 Ibs
1 233 Ibs
0975 Ibs
08381bs
0701 Ibs
0602 Ibs
~:.. 0,~55 Ibs
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Read T~is Before You Buy
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What You! Should Know About R-Values
~
The chartlshows the R-value of this Insulation R means resIstance to heat flow The hlgh~r ,~
the R-value, the greater the Insulation power Compare Insulation R-values before you buy''.
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There are~ other factors to consider The amount.of insulation you need depends mainly on the
clImate yqu live In Also, your fuel savings from Insulation WIll depend upon the clImate, the
type and $Ize of your house, the amount of Insulation already In your house, and your fuel use
patterns and family size If you buy too much insulatIon, It WIll cost you more than what you'll
save on f~el
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To get th~ marked R-value, It IS essential that this Insulation be Installed properly wIth.
~
pneumatic equipment "...~,
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Johns Manville
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SIC 186 (Wlllowsl 8/98
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~ PRINTED ON
~ RECYCLED PAPER
Insulation Group
POBox 5108 , ,
Denver"C_olorado 8021'7,~5108
1-800-654:3103 ,\, "
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