Your home's R-value score will guide you toward the type of insulation you need. In general, an attic's R-value should be between R-30 and R-49. In particularly cold climates, you might go up to R-60.

Without the right insulation R-values, hot and cold air alike can flow right through a home’s flooring, walls, ceilings, and attic. But what exactly is R-value, and what does it have to do with ...

For home improvement purposes, R-values range from about R10 for some flooring materials to R60 for dense attic insulation materials. But, this is where it gets complicated: The assigned ...

You can perform a scaled-down visual energy audit of the attic ... layer of perpendicular batts. R-19 batts can be doubled up to achieve an R-38 level of insulation efficiency.

Say you find 14 inches of blown-in cellulose insulation, which has a typical R-value of around R-3.5 per inch, in your attic. That means your attic is insulated to about R-49, or 14 x 3.5. Keep in ...

What does that mean? — Doris L., Pittsburgh A: R-value refers to the level of resistance to heat flow that insulation — from fiberglass attic insulation to pipe wrap — provides. Heat ...

consistently offering attic insulation that surpasses the new minimum standard of R-30. For areas like San Diego, located in Climate Zone 7, they offer insulation options with R-values exceeding 40.

If your attic has an overhead clearance of two feet or more, CPS won’t pay a rebate unless the existing insulation has an R-value of 14 or lower and the new insulation is R-38 or higher.

The higher the R-value, the better the insulation performance. In simpler terms, a higher R-value means the material is more resistant to heat flow, helping to maintain a comfortable indoor ...