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

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

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(WORK INCLUDED)
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<big>Applicable to slopes 1:6 (2" in 12") and greater.</big>
 
  
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
;(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) [[RoofStar Guarantee Standards for Asphalt Shingle Systems#AShUNDERLAYMENT|'''Underlayment''']]: Underlayment on the upper slope must overlap the metal transition flashing and lower slope underlayment.
;(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) [[RoofStar Guarantee Standards for Asphalt Shingle Systems#AShEAVES|'''Self-adhered (eave protection) Membrane''']]: Required 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) [[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) [[RoofStar Guarantee Standards for Asphalt Shingle Systems#AShTRANSITIONS|'''Metal Transition Flashing''']]: The lower leg must measure at least 100 mm (4”); the upper leg should measure at least 125 mm (5”).
;(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) '''Clip''': Optional.  
;(5) '''Compatible Mastic''': Heavy bead of compatible asphaltic mastic at rakes (gables) and valleys.
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;(5) [[RoofStar Guarantee Standards for Asphalt Shingle Systems#AShFIELDAPPLICATION|'''Starter Shingle''']]:  
;(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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;(6) [[RoofStar Guarantee Standards for Asphalt Shingle Systems#AShFIELDAPPLICATION|'''Shingle''']]:
;(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 ===
;(A) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASDECK|'''Acceptable Deck''']]
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Revision as of 22:45, 23 October 2019

RoofStar Guarantee Standards are blue-linked
Asphalt Shingle Details

ASh Slope Change - Inside 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
Required 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) Clip
Optional.
(5) Starter Shingle
(6) Shingle

2 RELATED WORK BY OTHERS

(A) Acceptable Deck

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.



RoofStar Guarantee Standards for Asphalt Shingle Systems

Back to Asphalt Shingles Construction Details

Back to Construction Details