Johns Manville Mineral Wool Insulation

There are at least three brands of mineral wool batts for thermal wall insulation.

Johns manville mineral wool insulation.

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. Johns manville minwool curtainwall insulation is available in a wide range of thicknesses and is available plain or with a foil facing vapor retarder. Johns manville manufactuers mineral wool in a breadth of shapes and sizes and now offers a complete line of water repellent minwool 1200 industrial insulation. Johns manville tempcontrol roxul comfortbatt and thermafiber ultrabatt.

Most mineral wool insulation does not contain asbestos but there is at least one known exception from an alabama manufacturer. Johns manville s minwool window wall insulation is designed to be used primarily in glass and metal window wall systems. Johns manville mineral wool tempcontrol batts offer up to rsi 4 9 r 28. Johns manville minwool sound attenuation fire batt safb insulation is manufactured from inorganic fibers derived from volcanic rock.

Mineral wool is ideal for applications that need a lightweight easy to install insulation with robust thermal performance. Johns manville mineral wool batts are made of inorganic fibers derived from basalt a volcanic rock and are enhanced with glass fibers. Be aware though that you may have to special order mineral wool batts. Johns manville r 23 mineral wool insulation batt 15 25 x 47 24 9 sq.

As an example the r 15 mineral wool costs about 80 per sq. Excellent sound control and thermal performance. Minwool window wall is made from mineral wool and bound with a thermosetting resin. In addition to fire control mineral wool also provides.

The short answer is that all research we ve made to date indicates that johns manville spintex batt insulation was a rock wool or mineral wool foil faced insulating batt product. Noncombustible and moisture resistant the lightweight and flexible batts are designed to deliver excellent noise control in metal stud wall cavities of interior partitions exterior walls or above suspended ceiling systems. With a melting point of 2000 f and natural fire resistant properties jm mineral wool insulation delays the spread of fire between interior rooms and provides superior fire resistance in exterior walls basements and heated crawl spaces. Ft to purchase this item contact the building materials department at the menards richfield store in person.