R Value - the measurement of 'insulating ability' of the material. The higher the R Factor number the greater the insulation value. U Value - the measurement of 'heat loss' through the material. The lower the U Value the less heat is escaping.

Down warms without weight. It takes 14 wool blankets to equal the temperature control of one down comforter. Each down cluster traps more air for its weight than any synthetic fiber. Every ounce of down has about two million fluffy filaments that interlock and form a protective layer filled with air that keeps warmth in and cold. Down is wonderfully resilient. You can flatten it and with a good shake it will bounce back to its original loft while providing you with natural warmth. See similar questions...

R-value is an assigned number derived from a specific testing procedure to determine a materials (or building assemblage) "resistance to conductive heat transfer". The higher the R-value, the more resistant a material (or building assemblage) is to conductive heat transfer. See similar questions...

No. Products with R-values reduce rates of "conductive" heat transfer and are tested for this characteristic. Radiant Barriers provide benefit by dramatically reducing "radiant" heat transfer which is just as quantifiable but not related to R-value type performance. See similar questions...

R-Value is a rating of the material resistance to thermal penetration. The higher the number, the better the protection value. Many circumstances change the R-Value rating. See similar questions...

Air tightness is the main factor, setting up a chain of thermal characteristics. Air movement through an insulation member tears away thermal value. SIPs are 15 times more air-tight than a framed assembly. High efficiency is attained through a combination of the solid EPS insulation without air spaces and the air-tightness created by the urethane glue film and the EPS foam. Ratings of fibreglass R-value are done in static air conditions -not with the reality of the applications. See similar questions...

No. Our products do not operate in this manner. Minimal benefit is netted when the product is doubled. See similar questions...

A NRG Block is six to ten times higher in R-Value than a common block, which ranges from 1.5 to 2.5 depending upon the aggregate used. See similar questions...

Other blocks using inserts or hollow core blocks with poured insulation range between 5 and 6 for a 9 and 10" block. See similar questions...

R-value is a standardized measurement of thermal efficiency. The higher the R-value, the greater the insulating properties. Overhead Door manufactures insulated doors with a broad range of R-values designed to meet your needs. Our Thermacore® doors offer our highest R-values - up to 17.5. See similar questions...

Grancrete does not provide high numbers in respect to being an insulator. Grancrete serves as a sealant to keep water and humidity out all while protecting the underlying insulation from physical damage. See similar questions...

In numerical terms, the U-factor is the reciprocal value of the total resistance (1/ΣR). The U-factor is only an indication of the conduction rate of heat transfer; it is a quantitative measurement of how well heat conducts through a roof or wall for a given temperature difference. For instance, if the total R-values (ΣR) of a roof's several components add up to 1.892 (m2 K)/W in the metric system or 10.75 (h ft2 ?F)/Btu in the U.S. See similar questions...

The R-Value is formulated using an inch of thickness as a measure. Due to the fact that Nansulate is made to go on in a thin layer - less than an inch thick - an accurate R-Value cannot be calculated for it. Nansulate works by acting as a barrier to heat transfer. It does not only insulate by trapping air, as other insulations do. Nansulate’s effectiveness can be seen in this energy savings demonstration, which shows how it can effectively insulate and slow down heat transfer. See similar questions...

That's a good question, but unfortunately the answer is not so simple, Window thermal performance is measured as a U-Value which Is the reciprocal of the R-Value ( R-Value = 1/U-Value. For example. R 2 = U .50, or 1/.50 = 2) A bit of background: the R-Value measures the resistance to heat loss or gain, while the U-Value measures the transmittance of heat through a material. The higher the number in R-Value the better the resistance, so the better the insulating value. See similar questions...