Generally, the higher the R-value, the more effective the insulation ... Step 5: Apply vapor barrier over batting for ...

since local building code requirements for insulation R-values differ between attics and walls. Attics (R-30 to R-60) often need greater thermal resistance than walls (R-13 to R-23), and code ...

Andrew Legge, CEO of Havelock Wool, a company that produces natural, sustainable building insulation made from wool, explains ...

Typical R-value: R-3.8 and R-6.8 per inch of thickness, depending on the type. Where commonly used: Basement and crawl space walls, and as continuous insulation on a house’s exterior.

The result is the following guide to the best insulation for exterior walls. R-value 13.1 Sika’s Rmax Pro Select board is essentially dense foam insulation for walls in sheet form.

The main thing to understand is that insulation R values don’t necessarily translate to real-world performance in the way you’d think. A wall insulated with, say, R25 of fibre insulation won ...

Scientists in China have designed a solar self-insulated composite exterior wall panel, integrating a solar collector panel, ...

Andrew Legge, CEO of Havelock Wool, a company that produces natural, sustainable building insulation made from wool, explains that a thin wall has a maximum thickness of 4.5 inches. It is ...