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.
Stone wool mineral fiber insulation.
Mineral wool insulation will not contain any fiberglass.
Therefore properly the term mineral wool insulation is a proper subset of mineral fiber insulation.
Specific mineral wool products are stone wool and slag wool europe who also includes glass wool which together with ceramic fiber are completely man made fibers.
Sound absorbent for acoustic comfort.
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.
The manufacturing process involves taking molten rock and spinning it while blasting it with cool air.
What is mineral wool.
Mineral wool insulation like that shown in our photograph includes only stone wool insulation insulation made from rock and slag.
Slag wool was first made in 1840 in wales by edward parry but no.
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.
It costs about about 25 to 45 more than fiberglass but i feel its benefits more than justify the additional costs.
Mineral wool is a stone based mineral fiber insulation comprised of basalt rock and recycled steel slag.