ASM 10.4.3 Ridge (Vented)

Division D - Construction Details

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SBS Details

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(1) Underlayment: The type of underlay required is determined by roof slope.
(2) Separation layer: Vapour-permeable layer over insulation, required on all insulated Architectural Sheet Metal Roof Systems. The material must be located between the insulation and metal panels (see 8.1.2 Design).
(3) Architectural metal panel clip: When a ventilation material is specified or required (Item 2), clips must be supported on an EPDM pad (not illustrated) or supported according to the standards in 8.3.3 Separation and Ventilation Layers.
(4) & (5) Architectural metal roof panel: Top end of panels must be "bread-panned (5).
(6) Drag-load fasteners: Compatible non-corrosive fasteners.
(7) Sealant
(8) 'Z' Closure: Set in accepted sealant or butyl tape and secured with compatible non-corrosive flathead fasteners.
(9) Ventilation screen
(10) Ridge cap flashing: Hooked onto ventilation screen.

NOTE: See the Standard for additional requirements.

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