Rigid Insulation R Value Calculator

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.

Rigid insulation r value calculator.

Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. 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. 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. 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.

Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Remember the horizontal or vertical orientation of the material is important to get its insulation value correct. These products provide a high r value inch excellent sound attenuation characteristics and outstanding fire performance.

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. When calculating the r value of a multilayered installation add the r values of the individual layers. Input depth of existing blown in insulation in inches. The r value of some insulations also depends on temperature aging and moisture accumulation.

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. Let s use the r value of iko s polyiso insulation enerfoil tm as an example. 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. Ceiling insulation r value r value for walls and more.

The r value calculator is best used as follows. Try the r value calculator available through oak ridge. Click the button to calculate the approximate r value for this job. 1 844 446 7858 my account.

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.