Mineral Wool Insulation R Value Per Inch

Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications.

Mineral wool insulation r value per inch.

Sheep s wool batts for a 2 by 4 inch and 2 by 6 inch stud framed wall offer an r 13 and r 19 value. R value denotes resistance to heat flow. The r value of thermafiber mineral wool insulation ranges from 3 7 4 2 per inch of thickness. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7.

3 3 4 5 mineral wool r 11 6 1 2 8 3 4 mineral wool r19 7 1 2 10 mineral wool r22. Astm e970 0 12 w cm 2 0 11 btu ft 2 s water vapor. R value is a measurement that rates how resistant a product is to heat flow measuring the ability of heat to transfer from one side of an object to another. Exceptional sound and noise absorption.

Asbestos lagging and paste will have a lower value. Fire resistant to temperatures above 2 000 f 1 093 c. These products offer superior long term thermal efficiency fire resistance moisture control acoustic performance and are compatible with numerous framing systems and cladding attachment systems. Its high resistance to heat flow translates into.

Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Up to 4 3 r value per inch of thickness. Fiberglass insulation rated at r 15 to fit a standard 4 inch wall costs around 0 50 per square inch as of 2013 according to fine. Cavityrock is a semi rigid insulation board designed for exterior cavity wall and rainscreen applications.

Sheep wool insulation r value equals or often surpasses that of other insulation materials. Estimated r value of asbestos insulation per inch for pipe insulation corrugated paper. Ceiling insulation r value r value for walls and more. The higher an insulation s r value the greater its insulating power.

Havelock wool offers both wool batt and blow in insulation. The r values of each product are 3 6 per inch and 4 3 per inch respectively. Reflected by its r value mineral wool s insulating performance is achieved by its densely packed fibers. Johns manville mineral wool batts are made of inorganic fibers derived from basalt a volcanic rock and are enhanced with glass fibers.

Rock wool generally costs more than fiberglass insulation. R value at 75 f 3 7 per inch of thickness. For use as insulation sheep s wool is also treated with borate to resist pests fire and mold. It can hold large quantities of water which is an advantage for use in some walls but repeated wetting and drying can leach out the borate.