Difference between revisions of "ASM Valley (Hooked)"
Difference between revisions of "ASM Valley (Hooked)"
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| + | <big><big>Division D - Construction Details</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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=== WORK INCLUDED === | === WORK INCLUDED === | ||
| − | ;(1) [[ | + | ;(1) [[ASM Roof Systems Standard#8.1.3.2. Valley Protection |'''Valley Protection Membrane''']]: Accepted self-adhered modified bituminous eave protection membrane. |
| − | ;(2) [[ | + | ;(2) [[ASM Roof Systems Standard#10.1.5.2. Valley Flashing |'''Valley flashing''']] |
| − | ;(3) [[ | + | ;(3) [[ASM Roof Systems Standard#10.3.5.2. General Requirements for Valley Metal Flashing |'''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) [[ | + | ;(4) [[ASM Roof Systems Standard#10.3.5.3. Hooked Metal Valleys |'''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) [[ | + | ;(5) [[ASM Roof Systems Standard#10.3.5.2. General Requirements for Valley Metal Flashing|'''Membrane flashing''']]: Accepted self-adhered modified bituminous eave protection membrane. |
| − | ;(6) [[ | + | ;(6) [[ASM Roof Systems Standard#8.1.3.3. Field Underlayment|'''Underlayment''']]: The type of underlay required is determined by roof slope. |
| − | ;(7) [[ | + | ;(7) [[ASM Roof Systems Standard#8.1.3.5. Ventilation Beneath Panels|'''Ventilation beneath panels''']]: 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) [[ | + | ;(8) [[ASM Roof Systems Standard#PART_9 |'''Architectural metal roof panel''']] |
=== RELATED WORK BY OTHERS === | === RELATED WORK BY OTHERS === | ||
| − | ;(A) [[ | + | ;(A) [[ASM Roof Systems Standard#PART_2|'''Acceptable Deck''']] |
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| − | '''NOTE''': | + | '''NOTE''': See the [[ASM Roof Systems Standard | '''Standard''']] for additional requirements. |
<hr> | <hr> | ||
| − | [[ | + | [[ASM Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''ASM Roof System Details'']] |
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| + | [[Main Page | <i class="fa fa-home fa"></i> Home]] | ||
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Latest revision as of 18:24, 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
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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 beneath panels
- 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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