Roof Insulation R Value Calculator

Click the button to calculate the approximate r value for this job.

Roof insulation r value calculator.

The higher the r value the better the thermal performance of the insulation. Input depth of existing blown in insulation in inches. Built by esd consultants low impact development lid consulting in melbourne australia the r value calculator is a practical tool to simplify total insulation calculations. R value insulation chart find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

The r value calculator is best used as follows. For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1 93721. Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications. To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826.

R value of various materials. R value is a measure of insulation s ability to resist heat traveling through it. Ceiling insulation r value r value for walls and more. 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.

This calculator is to be used as an estimating tool only. To convert rsi to r value multiply the rsi by 5 67826. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Recommended home insulation r values.

Remember the horizontal or vertical orientation of the material is important to get its insulation value correct. Our insulation calculator enables simple calculation of total wall roof ceiling or floor system insulation r values. The table below shows what levels of insulation are cost effective for different climates and. 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.

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. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.