Owner's Manual - At Andiron Fireplace Shop

D. Finishing MaterialRefer to Sections 12.A. and Sections 12.B. for combustible/noncombustiblematerials. Refer to Figure 12.10 fornoncombustible zone.WARNING! Risk of Fire! You must maintain clearances.• Use only non-combustible framing material belowstandoffs.• Sheetrock, wood or other combustibles must NOT be usedas sheathing or facing in the noncombustible zone.• DO NOT cover metal fi replace front with combustiblematerials.• Install combustible materials only to specifi ed clearanceson top front and side edges.These surfacesmay be coveredwith non-combustiblematerial.Non-combustiblesealant.• Complete framing and apply facing material (drywall) overframing.• A bead of 300-deg F minimum non-combustible sealantmust be used to close off any gaps at the top and sidesbetween the fireplace and facing to prevent cold airleaks.• Large gaps can be bridged with fi berglass rope gasket.• Only non-combustible materials may be used to cover themetal fi replace front.Figure 12.9 Noncombustible FacingNote: Mortar is applied after facing materialsare installed. Refer to Section 11.F.Finished combustible wall2 x 4 stud wall2 x 4 header, flush withfront of stand-offsCombustible materialNon-combustibledecorative facing(up to full brick depth)Continuous,non-combustible sealantTile, stone or othernon-combustible materialHearthRefractoryBottom of fireplace openingand finished hearth may bethe same height1 in. Micoreor equivilentinsulation &1/2 in. DurockMetal strips are placed 2 in. (51 mm)under the front of the fireplace and mustextend beyond the front and sides offireplace opening by 2 in. (51 mm)Floor constructed of wood orother combustible materialFigure 12.10 Decorative FacingHeatilator • Birmingham BIR42 • 4059-308 Rev C • 07/0843