Fire Blocking With Batt Insulation

Over the cavity you can always stuff it with batt insulation irc 302 1 1 2 this fur down around the air duct needs fire blocking installed in the wall cavity so that fire cannot go up inside the wall and into the duct cavity.

Fire blocking with batt insulation.

Rockwool safe n sound rockwool s popular stone wool fire and acoustic batt insulation is now offered in a new 6 thickness. Unfaced fiberglass batt insulation used as fireblocking shall fill the entire cross section of the wall cavity to a minimum height of 16 inches 406 mm measured vertically. Where piping conduit or similar obstructions are encountered the insulation shall be packed tightly around the obstruction. The easiest way we ve found to fire block this spot is to butt a continuous 2x8 to the mudsill letting it overhang the foundation wall.

If you can t get wood blocking or o s b. Unfaced fiberglass batt insulation used as fireblocking shall fill the entire cross section of the wall cavity to a height of not less than 16 inches 406 mm measured vertically. Model sg 25 p3 15 47 221 view the owens corning home comfort solutions. Best seller owens corning thermafiber fire and sound guard mineral wool insulation batt 15 in.

Step 3 fire blocking stairways. Best seller owens corning thermafiber fire and sound guard mineral wool insulation batt 15 in. Fireblocking unfaced fiberglass batt insulation used as fire blocking shall fill the entire cross section of the wall cavity to a minimum height of 16 inches measured vertically. Even when there s batt insulation in the bays the back of the wall would be open at the top where the plate attaches to the joists which means that by code fire blocking is needed.

When piping conduit or similar obstructions are encountered the insulation shall be packed tightly around the obstruction. Model sg 25 p3 15 47 221 view the owens corning home comfort solutions. R302 11 1 3 loose fill insulation material.