SBS 2-Part Retrofit Flashing (Cable Penetration)

(1) Gypsum Deck Overlay: Required when insulation is too thin to span flutes of steel decking or as thermal barrier when specified by the design authority.
(2) Vapour Retarder: If required by design authority.
(3) Insulation: Mechanically fastened where possible. See available insulation products in the Accepted Materials section of this Manual.
(4) Insulation Overlay Board: As required.
(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 with membrane
(7) Base Sheet Flashing: Adhered according to manufacturer's specifications, using cold adhesive, self-adhered or torch applied. Must be carried up flashing and terminate under hood flange. Torching directly to wood surfaces is not permitted.
(8) Cap Sheet: Applied according to manufacturer's printed instructions and to RoofStar Guarantee Standards.
(9) Cap Sheet Flashing: Applied according to manufacturer's printed instructions and to RoofStar Guarantee Standards. Must be carried up flashing and terminate under hood flange.

(A) Acceptable Deck
(B) Wood Blocking
(C) Two Piece Flashing: Assembled around protrusion, laid in bed of compatible mastic on top of base sheet. Mechanically fasten two components together and fasten flange to wood blocking or deck.

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.