Garland Combustible Deck (AC-49)
Slope: 2:12
1.) Optional - VaporSmart SA. Garland SA Roofing primer coverage of 1/3 to ½ gal/100 ft2 or Pro-Stop FR primer @ ½ gal/100 ft2 applied prior to VaporSmart SA.
2.) Optional insulation: 1⁄2”Wood fiber, polyisocyanurate
Note: When insulation is not used, HPR Glasbase, HPR Premium Glasbase, VersiPly 40, 1-ply ASTM D4601 Type II Base Sheet mechanically fastened is required.
Insul Lock HR insulation adhesive can be used for insulation and cover board.
3.) 1⁄2” Dens-Deck or ½” Securock
4.) StressBase 80, FlexBase Plus 80, FlexBase E 80, StressBase 120, Stress Base E 120, Flex Base 80, Flex Base 120, or VersiPly 80 adhered with Green-Lock Plus, or ASTM-D312 Type IV roofing asphalt
5.) KEE Stone HP adhered with KEE-Lock Foam Adhesive or KEE Lock Spatter Spray Adhesive.
Note: The component materials of each system must be applied in the order in which they are listed above.
Evaluated to the following:
The roof covering systems in this section have been evaluated for external fire resistance Classifications A, B, C as outlined by the following test methods:
- ASTM-E108 - American Society for Testing & Materials 'Standard Methods of Fire Test of Roof Covering'
- ULC-S107 - Underwriters' Laboratories of Canada 'Standard Method of Tests for Fire Resistance of Roof Covering Materials'
- UL-790 - Underwriters' Laboratories Inc. 'Tests for Fire Resistance of Roof Covering Materials'
Each system listing identifies the deck substrate as either non-combustible or combustible. Systems evaluated for combustible decks will provide the same ratings when applied over non-combustible decks. Unless otherwise noted in individual listings, combustible decks shall be sheathed with a minimum 15/32" veneer plywood or minimum 7/16" non-veneer APA rated sheathing panel (oriented strand board panels, structural particleboard panels, composite panels or wafer-board panels) or 3/4" thick solid wood sheathing boards. The component materials of each system must be applied in the order in which they are listed. All components of the system must be listed for external fire exposure by an agency acceptable to the AHJ.
Some Roof Covering Systems have been evaluated for other performance characteristics, in addition to external fire exposure. Where applicable, such additional performance characteristics are noted within the specific listing.
In all cases, manufacturer's instructions should be consulted for installation procedures and details not covered by these listings.
Listed Materials are identified by a label or marking bearing the wording, "Listed Roofing Component", a reference number or code and the WHI Certification Mark.
