Difference between revisions of "ASM Eave and Rake Edges (Zinc)"

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Difference between revisions of "ASM Eave and Rake Edges (Zinc)"

 
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The details listed provide metal panel installation information and the fabrication of metal flashing details for non-ferrous metal standing seam roof systems. More specific details are available from metal panel manufacturers.
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Zinc Standing Seam metal roofing systems must meet or exceed RoofStar Guarantee Standards <b><u>and </u></b>must be installed to zinc manufacturers published roof system specifications. In addition, approved proprietary underlayment, insulation overlays and metal panel separation sheets must be installed and comply to zinc manufacturers published roof system specifications.  
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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>ASM | Eave and Rake Edges (Zinc) ([[ASM_Roof_Systems_Standard#10.3.2.3. General Application Requirements for Perimeters and Walls | Article 10.3.2.3.]] and [[ASM_Roof_Systems_Standard#10.3.4.2. Eaves and Rake Edges | Article 10.3.4.2.]])</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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| colspan="2"  | <big>'''''RoofStar Guarantee Standards''''' are <span style="color:#6495ed">'''blue-linked'''</span></big>
 
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<div class="panel-heading"><big>'''ASM Details'''</big></div>
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<div class="panel-heading"><big>'''SBS Details'''</big></div>
 
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[[File:8.1.6.2.jpg|class=img-responsive]]
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[[File:ASM 10.1.4 Eave and Rake Flashing (Zinc).jpg|class=img-responsive | link=http://rpm.rcabc.org/images/b/b3/ASM_10.1.4_Eave_and_Rake_Flashing_%28Zinc%29.jpg]]
 
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::Click below for a printable version of this page (N/A)
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:[[File:Pdf.png|100 px|link=|'''Print Sheet''']]
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) Membrane Pre-stripping: RoofStar-accepted self-adhered modified bituminous membrane.  
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;(1) [[ASM Roof Systems Standard#8.1.3.4. Separation Between Materials | '''Separation membrane''']]: Separates the deck and the metal edge flashing.
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;(2) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMICE|'''Ice and Water Protection / Insulation Overlay''']]: For slopes 2:12 to 4:12 use RoofStar-accepted self-adhered modified bituminous membrane.
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;(2) [[ASM Roof Systems Standard#10.3.4.2. Eaves and Rake Edges | '''Hook securement strip''']]: In this particular rake edge configuration, a similar strip is installed along the rake to secure the flush rake-edge flashing.
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;(3) '''Panel Underlayment''': Zinc manufacturer&#8217;s approved proprietary metal panel underlayment / insulation overlay protection appropriate for construction of cold or warm roof assemblies. High permeability, triple layer spun bonded non-woven polypropylene fabric underlayment and slip sheets. <b>OR</b> Three-dimensional high-density polyethylene or polypropylene drainage boards and mats.
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;(3) [[ASM Roof Systems Standard#10.3.4.2. Eaves and Rake Edges | '''Continuous eave metal flashing''']]:
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;(4) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMCLIP|'''Metal Panel Clip''']]: 26 ga. (0.56 mm) thick two-piece sliding stainless steel clips at a maximum spacing of 300 mm (12") on centre. Fasten to steel deck using a minimum of two # 10-16 self-tapping steel screws with a minimum penetration of 12.5 mm (1/2"). Fasten to wood deck using a minimum of two # 8-14, 4 mm by 31 mm (1 1/4") screws.
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;(4) [[ASM Roof Systems Standard#8.1.3.1. Eave Protection|'''Eave protection''']]: One ply of self-adhered modified bituminous underlayment material. Lap 50 mm (2") minimum on sides and 100 mm (4") minimum on ends.
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;(5) '''Architectural Zinc Metal Roof Panel''': 0.80 mm (0.031") minimum thickness zinc conforming to European standard EN 988-1996, roll-formed to a maximum panel width of 425 mm (17") with maximum 25 mm (1") tall standing seams double-locked. Eave and rake edges to be folded around continuous edge metal flashing for panel expansion.
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;(5) [[ASM Roof Systems Standard#8.1.3.3. Field Underlayment|'''Underlayment''']]: Applicable for all Architectural Sheet Metal systems. For slopes less than 1:3, the entire roof slope must be covered with a <u>self-adhered</u> underlayment.
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;(6) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMHOOKSTRIP |'''Continuous Concealed Clip''']]: 26 ga. (0.56 mm) thick stainless steel clip attached with screws at a maximum spacing of 200 mm (8") on centre.(7) <b>Continuous Edge Metal Flashing:</b> 0.80 mm (0.031") minimum thickness zinc attached with screws at a maximum spacing of 200 mm (8") on centre.
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;(6) [[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.
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;(7) [[ASM Roof Systems Standard#9.2.1.5.Clips|'''Metal panel clip''']]: Installed in keeping with the metal roof panel manufacturer's printed instructions. Install on EPDM pad (not shown) or use a tall clip sized to support the panel on top of the ventilation layer.
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;(8) [[ASM Roof Systems Standard#10.3.4.2. Eaves and Rake Edges  | '''Flush rake-edge flashing''']]: Note that panel hooks onto outside edge of flashing, which is mechanically secured to the roof deck.
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;(9) [[ASM Roof Systems Standard#PART_9 |'''Architectural metal roof panel''']]
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) [[RoofStar Guarantee Standards for ASM Roof Assemblies#ASMDECK|'''Acceptable Deck''']]: Plywood - Minimum 15.1 mm (5/8" nominal) thick, T&G, CSA standard grade C or D.  / Steel -  Minimum 22 ga. (0.79 mm) to ASTM A653 / A653M or A792 / A792M.
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;(A) [[ASM Roof Systems Standard#PART_2|'''Acceptable deck''']]
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;(B) '''Fascia Board'''
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;(B) '''Fascia Board'''  
 
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'''NOTE''': Refer to '''''RoofStar Guarantee Standards''''' for additional requirements.
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'''NOTE''': See the [[ASM Roof Systems Standard | '''Standard''']] for additional requirements.
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* For insulated systems provide RoofStar-accepted self-adhered modified bituminous membrane insulation underlayment.
 
  
 
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Latest revision as of 18:24, 28 June 2022



Division D - Construction Details

ASM | Eave and Rake Edges (Zinc) ( Article 10.3.2.3. and Article 10.3.4.2.)

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.

SBS Details

ASM 10.1.4 Eave and Rake Flashing (Zinc).jpg


Click below for a printable version of this page (N/A)
Print Sheet

1 WORK INCLUDED

(1) Separation membrane
Separates the deck and the metal edge flashing.
(2) Hook securement strip
In this particular rake edge configuration, a similar strip is installed along the rake to secure the flush rake-edge flashing.
(3) Continuous eave metal flashing
(4) Eave protection
One ply of self-adhered modified bituminous underlayment material. Lap 50 mm (2") minimum on sides and 100 mm (4") minimum on ends.
(5) Underlayment
Applicable for all Architectural Sheet Metal systems. For slopes less than 1:3, the entire roof slope must be covered with a self-adhered underlayment.
(6) 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.
(7) Metal panel clip
Installed in keeping with the metal roof panel manufacturer's printed instructions. Install on EPDM pad (not shown) or use a tall clip sized to support the panel on top of the ventilation layer.
(8) Flush rake-edge flashing
Note that panel hooks onto outside edge of flashing, which is mechanically secured to the roof deck.
(9) Architectural metal roof panel

2 RELATED WORK BY OTHERS

(A) Acceptable deck
(B) Fascia Board

NOTE: See the Standard for additional requirements.

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