All About Insulation R
Learn all about insulation R-values and how they help keep your home cozy and save energy. Find everything you need to know with these insulation R-value charts .
Complete R-value charts , IECC requirements, material comparisons, and calculators for every insulation project.
Mastering R
Learn how to choose the right insulation material with our comprehensive guide to R-value charts , including climate zone considerations and installation tips.
Compare R-values for all insulation types with our complete chart . Fiberglass, spray foam, mineral wool, rigid foam & more — with costs, thickness, and recommendations.
Useful Notes on R Value For Insulation Explanation Ratings And Chart 2025
R-value insulation chart : look up the R-value per inch of every insulation material and the recommended R-value for your climate zone, attic, wall, floor, or basement. Printable reference by Jake Morrison, Licensed GC. Need to total up a layered assembly? Use the R-value calculator.
Selecting the right insulation for your home is more than just picking a random R-value from an insulation r-value chart or referencing an insulation thickness chart . The math about Insulation R-value is definitely not straightforward.
Insulation R
A complete reference table of recommended R-values for walls, ceilings, and roofs across all eight IECC climate zones — with pole barn and metal building specifics.
R-17 is required in CZ's 6-8; while R-23 is required in CZ's 1-5 and 9-16 (continuous insulation only). Refer to PIMA document for additional information for utilizing continuous and cavity insulation . *This document is for educational purposes only and is meant as a quick reference guide for insulation levels across the USA.
Recommended Home Insulation R
The higher the R-Value the better the thermal performance of the insulation . The table below shows what levels of insulation are cost-effective for different climates and locations in the home.
Learn what insulation R-values are, why they matter, and how to choose the right R-value to save energy and stay comfortable.