





Web Tools for Pros
Insulation Tools
Materials Calculator
Calculate what you need for your next project
R-Value Calculator
R-value is a measurement that rates how resistant a product is to heat flow, measuring the ability of heat to transfer from one side of an object to another.
Our calculator helps you measure what r value for exterior walls you may be looking for, as well as for different applications. i.e. ceiling insulation R value, R value for walls and more
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