Difference between revisions of "ASM Valley (Hooked)"

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Difference between revisions of "ASM Valley (Hooked)"

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<big><big>Division D - Construction Details</big></big>
 
<big><big>Division D - Construction Details</big></big>
 
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<big><big><big><big><big>ASM 10.3.1 Hooked Valley Flashing</big></big></big></big></big>
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<big><big><big><big><big>ASM | Valley (Hooked) ([[ASM_Roof_Systems_Standard#10.3.5.2. General Requirements for Valley Metal Flashing | Article 10.3.2.2.]] and [[ASM_Roof_Systems_Standard#10.3.5.3. Hooked Metal Valleys | Article 10.3.5.3.]])</big></big></big></big></big>
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{| class="wikitable" | style="color: black; background-color: orange; width: 100%;text-align:center"
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{{Template:Construction Details Header}}
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| colspan="2"  | <big>'''''Notice to Reader'''''</big>
 
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| style="color: black; background-color: #ffffcc; width: 100%;text-align:center" | Images used in a Construction Detail are representative and not prescriptive.  Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the requirements of the Standard they represent. Unless otherwise required by the Standard, dimensions, the selection of materials and their application remains the responsibility of the ''Design Authority''.<br><br>The full text of the referenced requirements in the [[ASM Roof Systems Standard | '''Standard''']] may be read by using the <span style="color:#6495ed">'''blue hyperlinks'''</span>
 
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Revision as of 16:15, 28 June 2022



Division D - Construction Details

ASM | Valley (Hooked) ( Article 10.3.2.2. and Article 10.3.5.3.)

Notice to Reader
Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article 2.2.1.2.).

The reader may link to the related Article in the detail title, or link to the Standard as it relates to a specific element in the detail. All hyperlinks are displayed blue text.

ASM Details

ASM 10.3.1 Hooked Valley Flashing.jpg

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Print Sheet

1 WORK INCLUDED

(1) Valley Protection Membrane
Accepted self-adhered modified bituminous eave protection membrane.
(2) Valley flashing
(3) Fastening
Metal valley panels to be secured with compatible, non-corrosive, flat head fasteners 200 mm (8") o/c. Metal roof panel to metal valley panel overlap must be a minimum of 125 mm (5"). See 10.3.5.2.2 (5).
(4) Valley panel overlap
Overlaps minimum 200 mm (8") sealed with two rows of acceptable sealant or butyl tape, and secured with drag load fasteners.
(5) Membrane flashing
Accepted self-adhered modified bituminous eave protection membrane.
(6) Underlayment
The type of underlay required is determined by roof slope.
(7) 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.
(8) Architectural metal roof panel

2 RELATED WORK BY OTHERS

(A) Acceptable Deck

NOTE: See the Standard for additional requirements.

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