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About Flexfoil
More Flexfoil products
  Patent# 2.365.778
   
 
 
  Multipurpose insulation for residential and commercial applications. Product is made of polyethylene film laminated on a 99% pure aluminum foil.
   
 
 
Thickness Polyethelyne film 3ml  
Tensile strength 23.9 Mpa (Machine direction)
  19 Mpa (Transverse direction)
 
Width of roll (in.)
52
52
Length (ft.)
58
104
Diameter (in.)
2.5
5
Coverage (sq.ft.)
250
450
Weight (lbs)
5
9.5

 
Temperature -60°F minimum, 180°F maximum
   
 
 
Thermal performance  
Emissivity: 0.03  
Reflectivity: 97%  
R Values  
Heat flow horizontal: 3.8
 
R Values determined in guarded hot box facility according to ASTM C236 standard.
 
Water Vapour Permeance
Method: ASTM E96/ ONCG 51.33
Result: 0.0115 perms
Compliance and Approvals
CCMC
CAN/CGSB-51.33-M89
   
Refer to Material safety data sheet before use
 
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 insulating 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.