SBS Flanged Insert Drain (Clamping Ring)

RoofStar Guarantee Standards are blue-linked

SBS Details

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(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 RoofStar Guarantee Standards. Torching directly to wood surfaces is not permitted.
(6) Mastic: Compatible mastic accepted by the membrane manufacturer.
(7) Base Sheet Flashing: Adhered according to manufacturer's specifications and to RoofStar Guarantee Standards.
(8) Cap Sheet: Applied according to manufacturer's printed instructions and to RoofStar Guarantee Standards.

(A) Acceptable Deck
(B) Clamping Copper Drain: Primed and mechanically fastened. Installed in bed of compatible mastic.

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

Leader size is determined by design authority using the calculation found in the BC Building Code at Appendix P.7.4.10 and Section 7.4.10.11 (Section 7.4.10.10 for gutters) in conjunction with the 15 minute rainfall value from the National Building Code, Appendix C.