Difference between revisions of "ASM Ridge (Unvented, Insulated)"

Revision as of 22:00, 26 July 2021

Notice to Reader
Images used in a Construction Detail are representative and not intended in their representation of an assembly to be prescriptive. Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the Standards, Guiding Principles and Recommendations of the RoofStar Guarantee Standards for a Waterproofing or Water-shedding System. Actual design with respect to dimensions, the selection of materials and their application remains the responsibility of the Design Authority. The full text of applicable RoofStar Guarantee Standards may be read by using the blue hyperlinks

SBS Details

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(1) Underlayment: The type of underlay required is determined by roof slope.
(2) Ridge girts: May be required by engineer for panel drag load fasteners. Secured using compatible non-corrosive fasteners.
(3) Insulation: Offset and stagger layers 300 mm (12").
(4) Vapour-permeable separation membrane: Installed over insulation and required on all insulated Architectural Sheet Metal Roof Systems. The material must be located between the insulation and metal panels/ventilation material (see 8.1.2 Design).
(5) Ventilation layer: A ventilation space is required on slopes less than 1:3; entangled mesh (shown) may be used as void fill. The ventilation space facilitates drying as condensation forms on the underside of the metal panels.
(6) Architectural metal roof panel: Top end of panels must be "bread-panned". Clips are not illustrated.
(7) Drag-load fasteners: Compatible non-corrosive fasteners.
(8) Foam closures: may be used to close ridge when cap flashing is mechanically attached to the panels ribs (see 10.3.5.3 (1)(2)).
(9) Ridge cap flashing
(10) Fasteners: See 10.3.5.3 (1)(2).

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

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