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 batts for 2×4 walls have an R-value ...

A proposed manufacturing plant southeast of the Tri-Cities will make building insulation by crushing stone, melting it and spinning the lava-like material in an industrial-strength cotton candy maker.

MILTON, ON, Sept. 7, 2017 /CNW/ - ROXUL Inc., the North American division of the ROCKWOOL GROUP, the world's largest stone wool manufacturer, announces it will commence a full rebrand to ROCKWOOL. The ...