View source for ASM Cylindrical Penetration (Split Panel Flashing)

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>ASM | Cylindrical Penetration (Split Panel Flashing) ([[ASM_Roof_Systems_Standard#12.3.1.2._RoofStar_15-Year_Guarantee | Article 12.3.1.2.]] and [[ASM_Roof_Systems_Standard#12.3.2.1._General_Requirements_for_Flashing_Penetrations | Article 12.3.2.1.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''ASM Details'''</big></div>
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:[[File:Pdf.png|100 px|'''Print Sheet''']] Under Revision
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=== WORK INCLUDED ===
;(1) [[ASM Roof Systems Standard#PART_5|'''Deck overlay''']]: Required for continuous support of the underlayment when the deck is not suitable.
;(2) [[ASM Roof Systems Standard#8.1.3.3. Field Underlayment|'''Underlayment''']]: The type of underlay required is determined by roof slope. 
;(3) [[ASM Roof Systems Standard#PART_7|'''Insulation''']]: Offset and stagger layers 300 mm (12").
;(4) [[ASM Roof Systems Standard#8.1.3.4. Separation Between Materials|'''Vapour-permeable separation membrane''']]: Installed over insulation and required on all insulated Architectural Sheet Metal Roof Systems.  The material must be located between the insulation and metal panels/ventilation material.
;(5) [[ASM Roof Systems Standard#8.1.3.5. Ventilation Beneath Panels|'''Ventilation beneath panels''']]: A ventilation/drying space is required on slopes less than 1:3; entangled mesh (shown) may be used as void fill.  The ventilation/drying space facilitates drying as condensation forms on the underside of the metal panels (See [[Notes to ASM Standard#A-8.1.3.5. | Note A-8.1.3.5.]]).
;(6) [[ASM Roof Systems Standard#9.2.1.6. Bearing Plates and EPDM Pads|'''Bearing plate''']]: Only thermally non-conductive clips or bars passing through the insulation assembly, or mechanically fastened bearing plates, may be used to secure and support insulation panels, or provide support for panel clips.
;(7) [[ASM Roof Systems Standard#9.2.1.5.Clips |'''Architectural metal panel clip''']]
;(8) [[ASM Roof Systems Standard#PART_9|'''Architectural metal roof panel (lower)''']]: Lower, installed prior to the pipe flashing, cut hole large enough to allow for movement. Extend 400 mm (16") upslope beyond the pipe.
;(9) Overlap area of lower panel: Penetration flashing is mounted here, set in an acceptable sealant.
;(10) [[ASM Roof Systems Standard#12.3.2.4. Curbs and Sleepers | '''Spaced Cleat''']]: Discontinuous cleats (to permit drainage), set in accepted caulking, spaced 50 mm (2") and fastened with compatible non-corrosive flat head screws. 
;(11) [[ASM Roof Systems Standard#9.2.1.7. Sealants |'''Sealant''']]
;(12) '''Architectural metal roof panel (upper)''': Installed after penetration flashing.  Cut hole for pipe penetration and turn lower panel end under to hook onto cleat.
;(13) '''Protrusion Flashing''':  Flange set in two continuous beads of accepted caulking.
;(14) [[ASM Roof Systems Standard#9.2.1.7. Sealants |'''Sealant''']]: Applied around base of penetration flashing.
;(15) '''Settlement Cap''': Material must match flashing material. 

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=== RELATED WORK BY OTHERS ===
;(A) [[ASM Roof Systems Standard#PART_2|'''Acceptable Deck''']]
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'''NOTE''': See the [[ASM Roof Systems Standard | '''Standard''']] for additional requirements.

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