Difference between revisions of "Asphalt Shingles - Changes in Slope (Outside Angle)"

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Difference between revisions of "Asphalt Shingles - Changes in Slope (Outside Angle)"

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>Asphalt Shingles | Changes in Slope (Outside Angle) ([[Asphalt_Shingle_Systems_Standard#9.3.2.7. Changes in Slope | Article 9.3.2.7.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''Asphalt Shingle Details'''</big></div>
 
<div class="panel-heading"><big>'''Asphalt Shingle Details'''</big></div>
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<big>Applicable to slopes 1:6 (2" in 12") and greater.</big>
 
  
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[[File:7.1.4.1.1.jpg|class=img-responsive]]
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[[File:ASh Slope Change - Outside Angle.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/2/2c/ASh_9.1.4_CD.jpg]]
 
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSUNDERLAYMENT|'''Underlayment & Eave Protection''']]: One ply of self-adhered modified bituminous underlayment material. Lap 50 mm (2") minimum on sides and 150 mm (6") minimum on ends. Also refer to the [[Eave Protection & Underlayment (Asphalt Shingles, Cedar Shakes & Shingles)|'''Accepted Materials''']] section of this Manual.
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;(1) [[Asphalt Shingle Systems Standard#AShUNDERLAYMENT|'''Underlayment''']]: Underlayment on the upper slope must overlap the metal transition flashing and lower slope underlayment.
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;(2) '''Edge Metal Flashing''': Optional (cf. [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSEDGE|'''2.2.9 Wood Deck Overlay Sheathing (Non-Structural)''']] for specific requirements), installed to manufacturer's printed instructions.
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;(2) [[Asphalt Shingle Systems Standard#AShEAVES|'''Self-adhered (eave protection) Membrane''']]: Optional for this slope change configuration, to seal the upper edge of the metal transition flashing.  When installed, the SA membrane must overlap the metal by at least 50 mm (2”) and extend upslope past the edge of the lower slope underlayment by at least 50 mm (2”).
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;(3) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSSTARTER|'''Starter Course''']]: Consists of same type shingles used for roof, applied tabs facing up the slope.
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;(3) [[Asphalt Shingle Systems Standard#AShTRANSITIONS|'''Metal Transition Flashing''']]: The lower leg must measure at least 100 mm (4”); the upper leg should measure at least 125 mm (5”).
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;(4) '''Strip or Standard Shingles''': Applied as recommended by manufacturer. Laminated shingles are <u>not</u> acceptable for this application.
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;(4) [[Asphalt Shingle Systems Standard#AShPART9GEN-APPLICATION|'''Starter Shingle''']]:  
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;(5) '''Compatible Mastic''': Heavy bead of compatible asphaltic mastic at rakes (gables) and valleys.
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;(5) [[Asphalt Shingle Systems Standard#AShPART9GEN-APPLICATION|'''Shingle''']]:  
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;(6) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASPROTRUSIONS|'''Protrusions''']]: Curbs and skylights must be flashed with underlayment so as to shed water, with minimum 125mm (5") up vertical surfaces and 150 mm (6") lapping onto field surfaces. Vent stack underlayment flashing should fit tight to the vent pipe and be sealed with compatible mastic. For fire-rated stacks or hot pipe protrusions, strip in secondary metal deck flashing before installing rated stack / pipe flashing.
 
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;(7) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASNAILING|'''Nailing''']]: Note manufacturer's recommended nailing pattern. Placement varies with manufacturer.
 
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASDECK|'''Acceptable Deck''']]
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;(A) [[Asphalt Shingle Systems Standard#AShDECKS|'''Acceptable Deck''']]
 
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'''NOTE''': Refer to '''''RoofStar Guarantee Standards''''' for additional requirements.
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'''NOTE''': See the [[Asphalt Shingle Systems Standard | '''Standard''']] for additional requirements.
  
 
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Latest revision as of 14:01, 28 September 2022



Division D - Construction Details

Asphalt Shingles | Changes in Slope (Outside Angle) ( Article 9.3.2.7.)

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.

Asphalt Shingle Details

ASh Slope Change - Outside Angle.jpg

1 WORK INCLUDED

(1) Underlayment
Underlayment on the upper slope must overlap the metal transition flashing and lower slope underlayment.
(2) Self-adhered (eave protection) Membrane
Optional for this slope change configuration, to seal the upper edge of the metal transition flashing. When installed, the SA membrane must overlap the metal by at least 50 mm (2”) and extend upslope past the edge of the lower slope underlayment by at least 50 mm (2”).
(3) Metal Transition Flashing
The lower leg must measure at least 100 mm (4”); the upper leg should measure at least 125 mm (5”).
(4) Starter Shingle
(5) Shingle

2 RELATED WORK BY OTHERS

(A) Acceptable Deck

NOTE: See the Standard for additional requirements.

Back to Asphalt Shingle System Details

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