Mineral Wool Batt Insulation R Value

The r value of thermafiber mineral wool insulation ranges from 3 7 4 2 per inch of thickness.

Mineral wool batt insulation r value.

Johns manville mineral wool tempcontrol batts offer r values up to r 30. May collect debris allergens mold also referred to as rock wool slag wool glass wool but not fiberglass 3 3 4 5 mineral wool r 11 6 1 2 8 3 4 mineral wool r19 7 1 2 10 mineral wool r22 10 1 4 13 3 4 mineral wool r30 13 17 1 4 mineral. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. It features a unique flexible edge designed to compress as the batt is inserted then spring back expanding the batt against the frame studs to give a complete fill.

Its high resistance to heat flow translates into. Questions page 2 y 2020 m 9 d 24 h 15cst bvseo bulk prod bvqa vn bulk 3 0 12. Mineral wool insulation rock wool 3 2 3 7 20. The raw materials are melted in a furnace at temperatures above 2 600 f.

Mineral wool batts for 2 4 walls have an r value of 15 while a standard fiberglass batt made to fit in a 2 4 wall has an r value of 11 or 13. Owens corning r 23 thermafiber ultrabatt mineral wool insulation batt 23 in. Rockwool comfortbatt is a semi rigid stone wool batt rockwool comfortbatt is a semi rigid stone wool batt insulation for exterior wood and steel stud applications in both new construction and renovations. The molten substance is spun into billions of fibers which are formed into insulating blankets with a high recycled content that provide fire resistive characteristics thermal insulation and sound control.

Mineral wool insulation is made from rock and blast furnace slag. Noncombustible fire and moisture resistant they are designed to deliver thermal control and delay the spread of fire in wood stud cavities of exterior walls basements and heated crawlspaces. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. Reflected by its r value mineral wool s insulating performance is achieved by its densely packed fibers.

Mineral stone wool insulation batts are slightly better insulators than the off the shelf fiberglass batts sold at most lumberyards and home centers. The common denominator among varieties of insulation is the r value. This semi rigid batt has a unique flexible edge designed to compress as the batt is inserted into walls attics ceilings and floor frames. Ceiling insulation r value r value for walls and more.

As a benchmark one inch of solid wood has an r value of 1. Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications.