Marquis MQRB4436N Installation Instructions Manual page 6

When finishing the wall around the fireplace, it is critical that the wall covering be fastened properly. It is acceptable to
pre-drill holes and use self-tapping screws which may be used to fasten a backer for tile, marble, etc. Screws being
installed through non-combustible board should be self-tapping type with a maximum length of 2 inches. Wall covering
fasteners, such as screws or nails, are not permitted in some locations. Do not drill or install longer screws which may
penetrate into the lower cover panel area as this may damage internal components.
· Only
· We recommend that DUROCK (non-combustible material) be tied in to the entire perimeter of the fireplace for durability.
· Frame unit with metal studs (minimum 20 gauge).
· Minimum of 1/2" DUROCK cement board (this
fasten to the entire perimeter framing.
· Use fiberglass (mesh) tape for all joints in area of the fireplace.
· Use Yellow joint mud (contains high amounts of glue) – two coats, finishing with one coat of green topping mud, sand
and prep for painting.
· If not using a surround, a metal "L" Trim may be used to finish perimeter of DUROCK.
· Refer to the following website for more information on using DUROCK Cement Board:
OTHER NOTES:
- t of non-combustible board (no joints) above the unit is recommended if possible.
-It is preferred to attach the non-combustible board to
contraction during normal operation.
-Lighter colored painted surfaces may discolor due to heat exposure.
materials may be used over the face of the appliance.
(Obtained from professional construction contractors and finishers):
panel is ULC listed as a wall shield/floor protector) and
www.cgcinc.com
and not directly to the unit to allow for expansion and
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