Stone Wool Mineral Fiber Insulation

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.

The non directional structure of rockwool stone wool insulation is denser than traditional insulation products which helps to absorb acoustic waves and can reduce the intensity and propagation of noise stone wool also effectively reduces airflow and sound transmission while providing higher airflow resistivity for improved sound attenuation. Mineral stone wool insulation batts are slightly better insulators than the off the shelf fiberglass batts sold at most lumberyards and home centers. Mineral wool is a stone based mineral fiber insulation comprised of basalt rock and recycled steel slag. What is mineral wool.

Therefore properly the term mineral wool insulation is a proper subset of mineral fiber insulation. The manufacturing process involves taking molten rock and spinning it while blasting it with cool air. 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. It costs about about 25 to 45 more than fiberglass but i feel its benefits more than justify the additional costs.

Mineral wool is also known as mineral fiber mineral cotton mineral fibre man made mineral fibre mmmf and man made vitreous fiber mmvf. Mineral wool insulation will not contain any fiberglass. Sound absorbent for acoustic comfort. 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.