SBS Basic Curb

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1 WORK INCLUDED

(1) Gypsum Deck Overlay

Required when insulation is too thin to span flutes of steel decking or when required as thermal barrier by design authority.

(2) Vapour Retarder

If required by design authority.

(3) Insulation

Mechanically fastened. See available insulation products in the Accepted Materials section of this Manual.

(4) Insulation Overlay Board

Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.

(5) Base Sheet

Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer’s specification and to RGC Guarantee Standards. Torching directly to wood surfaces is not permitted.

(6) Base Sheet

Adhered according to manufacturer’s specifications, using cold adhesive, self-adhered, or torch applied to cover boards, or mechanically attached membrane. Torching directly to wood surfaces is not permitted.

(7) Cap Sheet

Applied according to manufacturer’s printed instructions and to RoofStar Guarantee Standards.

(8) Cap Sheet Flashing

Applied according to manufacturer’s printed instructions and to RoofStar Guarantee Standards to top of curb.

(9) Metal Flashing

As required by RoofStar Guarantee Standards.

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2 RELATED WORK BY OTHERS

(A) Acceptable Deck

(B) Air / Vapour Seal

(C) Wood Blocking

Minimum 200 mm (8") in height. (See asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation. Cant is optional).

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

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