HomeMy WebLinkAboutPermit Correspondence 2002-10-30
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
(Rlof not be less than
R-38c lOX" Thick
R-38 13" Thick
R-30c 8X" Thick
o lOX" Thick
R-21 5X" Thick
R-19 6X" Thlckt
R-15 3~" Thick
R-13 3X" Thick
R-ll 3~" Thick
*Thlckness may vary Check bag
label
t R-17 31n a 5W cavity
Fiber Glass BlOWing Wool Attic Insulation - 451b Bag
R Minimum Bags Per Maximum Minimum
Value Thickness 1000 sq ft Net Coverage Wt /sq ft
To obtain an Installed The number of Contents of The weight
insulation insulation shall bags per 1000 _ thiS bag should per sq ft
resistance not be less sq ft of net not cover more of Installed
(R) of than area should than insulation
not be less should not be
than less than
R-60 22X" Thick 454 22 0 SQ ft 20421bs
R-50 20" Thick 373 26 8 SQ ft 1 680lbs
R-44 18" Thick 321 31 1 SQ ft 1 4461bs
R-38 16" Thick 274 36 5 SQ ft 1 233 Ibs
R-30 13" Thick 217 46 2 SQ ft 0975 Ibs
R-26 llX" Thick 186 53 7 SQ ft 0838 Ibs
R-22 9%" Thick 156 64 2 SQ ft 0701 Ibs
R-19 8X" Thick 134 748 SQ ft o 6021bs
R-11 5X" Thick 79 1268 SQ ft 0355 Ibs
Net Weight/Bag MInimum 41 Ibs 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 resistance to heat flow The higher the R-value, the greater the msulatmg power Ask your seller for the fact sheet on R-Values
Insulation products have been Installed In accordance with the above speCifications to proVide the R-values shown
Batts and Rolls
R-value
Thickness
Coverage Area
BlOWing Wool
~~h~e
__ R:- ~9;
Thickness
\\Q I(
Bags Used
'-'i 10 . Gl--\
Covera.ge Area
HeR-,
Ceilings
Walls 12 ~ 70\ ',( 1t;"'l<'13
\ \'9\1
Floors
l(- ?-5)( \l(i
)ln~1
~/;~4~1 it) Cf;(7JYfLJ~
~ture Jnsuiat,on Contractor) ,
~
t1 if ~~O';t
~0
I\Q( vhtcl
Ct5tl ft a/~'tt1 {j .
J
Itfll
IOI)/)JD~
Date I
Signature IHome BUllderl
Company
Date
This home is insulated with Johns Manville Fiber Glass Building Insulation
BIC 186 (Wlllowsl 8/98
This is Fiber Glass
Blowing Wool Insulation
1'"1 C Fact Sheet
High Density Fiber Glass Building Insulation
,
Bag Weight 45 Ibs NomInal (MInimum Net Weight of Insulation In this package IS 41 Ibs)
R
Value
Mmimum
Thickness
Bags Per
1000 sq, It
Maximum
Net Coverage
Mmlmum
Wt Isq It
To obtain an
insulatIOn
resIstance
(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-38
R-30
R-26
R-22
R-19
R-11
22%" ThIck
20" ThIck
18" Thick
16" Thick
13n Thick
11%" Thick
9 %" ThIck
8Y2" Thick
5 %" 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
2042 Ibs
1 680 Ibs
1 446 Ibs
1 233 Ibs
0975 Ibs
0838 Ibs
0701 Ibs
0602 Ibs
0355 Ibs
Read This Before You Buy
What You Should Know About R-Values
The chart shows the R-value of this insulation R means resIstance to heat flow The higher
the R-value, the greater the insulation power Compare Insulation R-values before you buy
There are other factors to consider The amount of Insulation you need depends maInly on the
climate you live In Also, your fuel savings from Insulation will depend upon the climate, the
type and size 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 fuel
To get the marked R-value, It IS essential that thiS insulatIon be Installed properly with
pneumatIc equIpment
JiM
Johns Manville
BIC 186 (Willows) 8198
~ PRINTED ON
'W' RECYCLED PAPER
Insulation Group
PO Box5108
Denver, Colorado 80217-5108
1-800-654-3103
Internet httpl/www Jm com