## What is a good R-value for walls?

Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces. See the Department of Energy’s (DOE) ranges for recommended levels of insulation below.

**What is R 5 insulation used for?**

Continuous Insulation (Ci) means creating an insulation blanket around the exterior of the structure. When you apply Kingspan GreenGuard R-5 XPS Insulation over studs, you create a wall with reduced energy loss through thermal bridging and less potential for moisture problems.

### What is R5 continuous insulation?

DuPont Tyvek R5. 0 wrap provides a breathable air, water and thermal protection product designed to meet updated building codes and standards for continuous building insulation. The operative word here is “breathable,” thereby negating the need for air exchangers in other types of systems.

**What is the R value of 6 batt insulation?**

19.2

Fiberglass Insulation Batts Fiberglass blankets or rolls provide an R-value of up to 3.2 per inch, so a 6-inch fiberglass batt may achieve an R-value of 19.2, and some high-performance products are rated at R-21.

## What is the R-value of 6 batt insulation?

**What R-value is drywall?**

about R-0.5

Drywall, for instance, has an R-value of about R-0.5 for its half-inch of thickness. This is quite minimal when you consider that filling a four-inch-thick wall cavity with insulation increases the R-value to about R-15.

### What is the R-value of 6 inch fiberglass insulation?

Fiberglass Insulation Batts Fiberglass blankets or rolls provide an R-value of up to 3.2 per inch, so a 6-inch fiberglass batt may achieve an R-value of 19.2, and some high-performance products are rated at R-21.

**What is the R-value of XPS?**

Just like with EPS, energy efficiency is the primary feature of XPS insulation. Due to its physical properties, XPS has a higher r-value than EPS at 4.7 per inch.