Roof Insulation 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.

Roof insulation r value calculator.

Remember the horizontal or vertical orientation of the material is important to get its insulation value correct. This calculator is to be used as an estimating tool only. Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications. Work out all the different materials and surfaces that make up the wall ceiling or surface you want to work out the r values and u values for.

Input depth of existing blown in insulation in inches. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. The r value calculator is best used as follows. Whether it s a backyard workshop a man cave a studio or a potting shed you can keep your space comfortable safe with the right insulation vent.

Ceiling insulation r value r value for walls and more. You should of course see the manufacturer provided technical data sheet for the r value of specific products. R value of various materials. R value of insulation is the most important guiding factor on the ability of the insulation to reduce heat flow up or down.