Publicité
Clearances
Material Specifications
Non-Combustible Materials Specification
Non-combustible materials are those which will not ignite and burn . These are materials 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 . Approved non-combustible cement board must be at least ½" (13 mm) thick .
Non-combustible material may be installed on the fireplace frame to cover the metal part as detailed in the
installation examples and clarifications only if there is no weight transfer to the fireplace . Facing and/or finishing
materials must never overhang into the glass opening .
DO NOT connect materials to or drill into the metal fireplace frame . This can result in excessive heat transfer and/or
damage to the fireplace and surrounding materials .
All joints between the finished wall sheathing and the appliance must be sealed with non-combustible materials .
FIRE HAZARD: DO NOT apply combustible materials beyond the minimum clearances . Comply with all minimum
clearances to combustibles as specified in this manual .
Examples of non-combustible materials that can be used:
•
Skamol Skamotec
•
Promat PROMAFOUR System ½" (12 mm), ⅝" (15 mm), ¾" (18 mm)
•
James Hardie - Hardiebacker
•
⅝" (15 mm) Type X fire rated drywall . Type X gypsum board must comply with ASTM C1396 specification . Type
X fire rated gypsum board can be used around the fireplace or at the back as a non-combustible material .
Combustible Materials Specification
Combustible materials made of or surfaced with wood, compressed paper, plant fibers, plastics, or other
materials that can ignite and burn, whether flame-proofed or not, or plastered or un-plastered shall be considered
combustible materials .
WARNING
!
½" Cement Board
®
42
Publicité
