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Foam and Roofing Calculators
Savings Calculator
Here is a sample of the cost/benefit ratio of different types of foam
Linear Feet Avg Height Area R-Value Type of Foam Avg Thickness (inches) Board Feet (open cell) Board Feet (closed cell)
Walls: ft ft ft in.
Roof: ft ft ft in.
Ceilings: ft ft ft in.
Basement walls: ft ft ft in.
Other area: ft ft ft in
Requirements in pounds lbs lbs
Foam Cost
(per pound)		 $ $
Job Cost
(foam only)		 $
Roofing/Area Requirements Calculator
Here is a sample of the cost/benefit ratio of different types of foam
Area: sq ft.
Loss Factor: this is the difference between theoretical and actual yield. We at CPI feel that 25-35% is a conservative yet realistic number. This is caused by by many factors such as overspray, expected waste, skin formation of the foam, ambient temperature, thermo shock on cool substrates, etc. As an example, people will see as much as 10 to 15% difference jusr due to ambient differences when the substrate is 40 degrees or 90 degreees.
Density:
Loss Factor: %
Thickness: in.
Pounds: lbs.
Yield Calculator
What surface are can you cover with a given quantity of foam?
Quantity: lbs of foam
Guidelines Typical densities are 0.55 lbs./c.ft for half pound, 1.8 lbs/cft for 2# and 2.8 lbs/cft for 3# foam. Using EnduraTite as an example, you should get about 18,000 bd.ft for 1/2#, 4800 for 2# and 2800 for 3# foam. This very significant difference is caused by many factors such as overspray, expected waste, skin formation of the foam, ambient temperature, thermo shock on cool substrates, etc. As an example, people will see as much as 10 to 15% difference jusr due to ambient differences when the substrate is 40 degrees or 90 degreees.
Density: lbs/cubic ft
Theoretical Yield  
in Bd ft:
in cubic ft:
Loss Factor %
Yield  
in Bd ft:
in cubic ft:
*Disclaimer*
These calculators represent CPI’s assumption. All results must be independently verified by the users of these calculators.