SBS Protected Roof Assembly (typical)

(1) Base Sheet: Adhered to deck using asphalt, cold adhesive, self-adhered, torch applied membrane or loose laid according to manufacturer’s specification and to RGC Guarantee Standards.
(2) Base Sheet Flashing: 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. Must be carried over to outside of parapet or minimum 200 mm (8") above finished roof surface. (See RGC Guarantee Standards Section 2.1.1, A5.6, and Section 2.1.3, C8.5).
(3) Cap Sheet: Applied according to manufacturer’s printed instructions and RGC Guarantee Standards.
(4) Cap Sheet Flashing: Applied according to manufacturer’s printed instructions and RGC Guarantee Standards to top of parapet or minimum 200 mm (8") above top of finished roof surface.
(5) Insulation: See list of accepted materials in Section 2.2.
(6) Filter Fabric: Metal base flashing required. (See RGC Guarantee Standard A6.9.1.2)
(7) Ballast: Gravel or concrete paving tiles. (See RGC Guarantee Standards Section 2.1.1, A5.2)
(8) Metal Flashing: As required by RGC Guarantee Standards. (See RGC Guarantee Standard A6.9 and A6.10)

(A) Acceptable Deck: Smooth, dry and clean concrete, coated with proprietary primer.
(B) Plywood Backing: Required on rough concrete or where stripping adhesion is asphalt. Must be primed.
(C) Wood Blocking: Sloped to roof where parapet is over 100 mm (4") in width.

NOTE: Refer to RGC Guarantee Standards for additional requirements.