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FM APPROVAL GUIDE

Roof Cover: Fields M68 RubrCap FR Heavy
Deck: Steel and Concrete (Recover where indicated)
Laps: 4 in. (102 mm) side laps and 6 in. (152 mm) end laps
Applications: Hot asphalt
Base Sheets: Fields F52 GlasBase
Ply Sheets: Fields F54 GlasPly 6, Fields F56 GlasPly
Hail Rating: Class 1-SH
ASTM E 108: Class A noncombustible deck at a 14 in 12 slope


Construction #1: ENRGY 2, Fesco Foam or DuraBoard, 1.5 in. (38 mm) min thickness, is placed over the deck and mechanically fastened to the deck with UltraFast (metal) plates and screws or Standard plates and CD-10 screws applied at 4 ft2 max tributary area per fastener. Retro-Fit Board, GAFTEMP Permalite Recover, Permalite Recover Board only is hot mopped to the insulation. The base sheet (or ply sheet used as a base sheet) is hot mopped to the Retro-Fit Board. An optional ply sheet is hot mopped to the base sheet (or ply sheet used as a base sheet). The cap sheet hot mopped with hot asphalt. Meets Class 1-90.


Construction #2: ENRGY 2 (not with Wood Fiber coverboard), Fesco Foam or DuraBoard, 1.5 in. (38 mm) min thickness is loose laid over the deck. Min 1 in. 925 mm) thick Esgard, Celotex Fiberboard, GAFTEMP Fiberboard, Huebert Fiberboard, min 34 in. (19 mm) thick Fesco Board, Permalite, GAFTEMP Permalite or 12 in (13 mm) Retro-Fit Board, GAFTEMP Permalite Recover, Permalite Recover Board is placed over the insulation and mechanically fastened to the deck with UltraFast (metal) plates and screws or Standard plates and CD-10 screws applied at 2 ft2 max tributary area per fastener. The base sheet (or ply sheet used as a base sheet) is hot mopped to the cover board. Up to two optional ply sheets are hot mopped to the base sheet (or ply sheet used as a base sheet). The cap sheet is hot mopped with asphalt. Meets Class 1-90.


Construction #3: Concrete. ENRGY 2, Fesco Foam or DuraBoard, 1.5 in (38 mm) min thickness is hot mopped to a primed structural
concrete deck. An optional cover board may be hot mopped to the insulation. The base sheet (or ply sheet used as a base sheet) is hot mopped to the insulation or cover board. An optional ply sheet is hot mopped to the base sheet (or ply sheet used as a base sheet). The cap sheet is hot mopped with asphalt. Meets Class 1-90.


Construction #4: Recover. Retro-Fit Board, GAFTEMP Permalite Recover, Permalite Recover Board 12 in. (13 mm) thick, is adhered with hot asphalt to a smooth surfaced BUR. The base sheet (or ply sheet used as a base sheet) is hot mopped. An optional ply sheet is hot mopped to the base sheet (or ply sheet used as a base sheet). The cap sheet is hot mopped. Meets Class 1-60/1-90 per the existing roof.


Construction #5: Concrete. Fesco Board, Permalite or GAFTEMP Permalite, min 34 in. (19 mm) thick, is hot asphalt to a primed structural concrete deck. The cap sheet is hot mopped. Meets Class 1-225.

   

Fields Company LLC
2240 Taylor Way,
Tacoma WA 98421

Phone:
800-627-4098
Fax:
253-383-2181
email:
sales
customer service

 

 

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