ASM Cylindrical Penetration (Flexible Boot Flashing)

(1) Underlayment: The type of underlay required is determined by roof slope (see Section 8.1.4.1 and Section 8.1.4.2).

(2) Slip Sheet: Recommended over asphaltic underlays and / or as required by metal roof panel manufacturer.

(3) Architectural Metal Roof Panel

(4) Flange: Set in two continuous beads of accepted caulking.

(5) Preformed Penetration Collar

(6) High Domed, Gasketed, Cladding Type Screws: Flange fastened to manufacturer’s specifications.

(7) Seal Between Pipe And Flashing: Continuous tooled bead of accepted caulking.

(8) Stainless Steel Drawband

(9) Water Tight Back Up Storm Collar: Installed where practical.

(A) Acceptable Deck

(B) Location Of Penetrations - must not interfere with standing seams or trapezoidal and intermediate ribs.

(C) Opening In Roof Deck - must be large enough to allow for thermal movement of metal roof panels.

(D) Pipe Or Support Stand

NOTE: * Refer to RGC Guarantee Standards for additional requirements.