Heat & Glo • SLR • 2143-900 Rev. B • 7/08
49
Sealing Joints
The joints between the drywall sides and drywall
above the top factory installed non-combustible board
CAN NOT be sealed with a combustible drywall tape.
Depending upon the fi nal fi nishing method, use a
minimum rated 300 degree sealant, drywall compound,
or thin set to seal the side and top joints.
Figure 13.7 Lower Drywall Detail
SIDE WALL
SHEATHING
LOWER WALL
SHEATHING
1/2 INCH CUT IN
WALL SHEATHING
Figure 13.6 Confi rm Fireplace Opening
Dimension
16 IN.
