Roof Insulation R Value Calculator
Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications.
Roof insulation r value calculator. You should of course see the manufacturer provided technical data sheet for the r value of specific products. 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. Ceiling insulation r value r value for walls and more. The r value calculator is best used as follows.
R value of insulation is the most important guiding factor on the ability of the insulation to reduce heat flow up or down. 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. 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. This calculator is to be used as an estimating tool only.
Click the button to calculate the approximate r value for this job. Input depth of existing blown in insulation in inches. R value of various materials. Remember the horizontal or vertical orientation of the material is important to get its insulation value correct.