Kingspan Insulation North America recently introduced Kooltherm® K100—a high-performance foam plastic insulation engineered to meet the thermal, space, and safety demands of construction and retrofit ...

The government said the discount would halve the average ceiling insulation install costs of $3,000 to $1,500 and see an average home save about $400 a year in energy bills.

Why It Matters: The R-value measures how well insulation resists heat flow. ... Best For: Walls, ceilings, and duct insulation. Price: $5–$20 per square meter. Where to Buy: ...

However, the quality of the attic's insulation is a factor in ice formation and energy efficiency, so it's important to inspect and upgrade it when necessary. "Over time, a buildup of ice can ...

Typical R-value: R-3.2 to R-7.5 per inch of thickness. Where commonly used: Inside unfinished wall cavities, attics, and basements, and as continuous insulation on a house’s exterior. Cost: $1 ...

Rigid foam R-values range from R-1 for 1/4-inch thick sheathing panels to R-15 for 3-inch thick panels. The R-value is not entirely a function of the material's thickness, as the facing material ...

We recommend insulating the walls, installing a ceiling on the bottom of the trusses, then blowing in fiberglass to get an R-30 value to keep from heating the attic.

The relationship of R-value to insulation value is linear, “If the R-value of your wall doubles, the amount of energy you're losing is cut in half,” says Amerongen. We typically think of R-value as ...

The other form of insulation currently in production is made in batts— thick pieces, formed by pressing the fibers together, designed to be fitted into wall cavities inside homes. The founders say ...

There are seven R-value regions in the U.S. and the colder the climate, the higher the suggested R-value. For ceilings and attics, suggested R-values range from R-30 to R-49. Roll/Batt Insulation ...