Mineral Wool Insulation Around Chimney

There was no insulation in the chase before and we decided to go with mineral wool over fiberglass batt insulation which can come with its own integrated vapor barrier.

Mineral wool insulation around chimney.

Fiberglass home insulation is not considered an acceptable fire safeing product. These are mounted directly onto the chimney and are fastened with straps. The recommended insulation for round chimneys where temperatures are below 300 c is load bearing lamella mats prorox ma 520 alu. Once the air seal was accomplished jerome installed a roxul mineral woolinsulation barrier around the chimney.

This isolated the masonry from an r 60 blanket of cellulose insulation that was blown in place after all the airsealing measures were implemented. Fire and sound guard is fire resistant to temperatures above 2000f allowing for additional time to exit the structure in the event of a fire. Thermafiber fire and sound guard mineral wool is thermafiber fire and sound guard mineral wool is designed to provide exceptional acoustic control and fire protection in interior walls as well as floor and ceilings in residential and light commercial construction. For the future insulation inspection the inspector told us that he wants to see a vapor barrier on the mineral wool we used in the chimney chase.

However the better method for filling voids in a chimney flue liner to the full height of the flue is to use vermiculite chips can be bought for insulation purposes or as soil treatment check around for best prices. Mineral wools are an approved fire safeing product and are used for this all the time.