Rigid Insulation R Value Calculator

Most insulation manufacturers will first list their insulation s r value for a one inch sample then they ll give you a chart demonstrating the other r values you can achieve if you install a thicker version of their product.

Rigid insulation r value calculator.

Input depth of existing blown in insulation in inches. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Ceiling insulation r value r value for walls and more. When calculating the r value of a multilayered installation add the r values of the individual layers.

Click the button to calculate the approximate r value for this job. 1 844 446 7858 my account. Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications. Installing more insulation in your home increases the r value and the resistance to heat flow.

Don t let your remodeling budget go over board by hidden surprises understand what the average installed costs for rigid foam insulation is in your zip code by using our handy calculator. 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. 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. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.

If you re looking for 2020 breakdown for rigid foam insulation materials and what installation cost might be you ve come to the right place. The r value of some insulations also depends on temperature aging and moisture accumulation. Our r value guide to rigid insulation includes the doe s recommended insulation by zone chart r value calculator and base building material r values chart. Let s use the r value of iko s polyiso insulation enerfoil tm as an example.

For example a wall with 3 fiberglass batting r value of 10 8 11 9 may have an overall r value of nearly 14 because of siding sheathing and drywall. This calculator is to be used as an estimating tool only. These products provide a high r value inch excellent sound attenuation characteristics and outstanding fire performance. Thermafiber residential mineral wool insulation commercial grade at home thermafiber residential mineral wool blankets are ideal for insulating walls floor ceilings and attic spaces in homes.

Try the r value calculator available through oak ridge.