Cement Board
Material Specifi cations
Non-Combustible
Material which will not ignite and burn. Such materials
are those consisting entirely of steel, iron, brick, tile,
concrete, slate, glass or plasters, or any combination
thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750°C shall be considered
non-combustible materials.
Combustible
Materials made of or surfaced with wood, compressed
paper, plant fi bers, plastics, or other material that
can ignite and burn, whether fl ame proofed or not,
or plastered or unplastered shall be considered
combustible materials.
Non-combustible
board required
thickness:
1/2 inch (13 mm)
Valor Fireplaces • 190—2255 Dollarton Highway • North Vancouver, BC • V7H 3B1
LT2 2700K
Minimum coverage area of non-combustible board.
Any wall finish applied to shaded area must be non-combustible.
D
D
A
B
C
Tel: 604.984.3496 or 1.800.468.2567 • Fax: 604.984.0246 or 1.800.268.0333
Non-Combustible Cement Board
The LT2 Linear fi replace requires a 1/2" (13 mm) thick
non-combustible cement board to be used as a wall
surface immediately surrounding the unit's opening—
see diagram for minimum coverage.
Extending the cement board well beyond the minimum
shown will help avoid cracking due to diff erential
expansion of materials.
Pre-drill cement board with oversized holes and do
not over-tighten screws to avoid cracking due to heat
expansion.
Standard gypsum wall board may be used beyond the
perimeter of the cement board.
With 2775LFB trim
inches [mm]
A
Min. 20-1/2 [521]
B
19-5/8 [498]
C
Min. 8-11/16 [221]
D
Min. 4 [102]
E
Min. 49-13/16 [1265]
Min. 58" (1473 mm)
E
www.valorfi replaces.com
With 2730CIK trim
Min. 20-1/8 [511]
21 [533]
Min. 8 [203]
Min. 3-3/8 [84]
Min. 51 [1296]
D
LT2 fireplace outline
(including stand-offs)
Joints preferred at corners
to prevent cracking
(see page 3)
Flush with bottom of unit;
add extra cement board
if overlapping framing.
October 2023
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