ASM Cylindrical Penetration (Flexible Boot Flashing)

(1) Underlayment: The type of underlay required is determined by roof slope.
(2) Slip Sheet: Recommended over asphaltic underlays and / or as required by metal roof panel manufacturer.
(3) Valley Metal 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 RoofStar Guarantee Standards for additional requirements.