James Klassen at 16:23, 7 November 2025

2025-11-07T16:23:56Z

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>TPO | Low Door Opening ([[TPO_Roof_Systems_Standard#10.3.4.5._Doors.2C_Windows.2C_and_Wall_Openings | Article 10.3.4.5.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''TPO Details'''</big></div>
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[[File:Part 10 - Construction Detail - Low Door Opening - TPO.png|link=https://rpm.rcabc.org/images/3/32/Part_10_-_Construction_Detail_-_Low_Door_Opening_-_TPO.png |class=img-responsive]]
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=== WORK INCLUDED ===
;(1) [[TPO Roof Systems Standard#PART_1|'''Roof system''']]: Conventionally insulated system shown (refer to the membrane Standard for requirements).
;(2) [[TPO Roof Systems Standard#PART_9|'''Field membrane''']]: TPO shown (see Part 9 for requirements)
;(3) [[TPO Roof Systems Standard#PART_10|'''Self-adhered membrane (pre-flashing)''']]: Adhered. Apply over rough sill or sill woodwork. Prime as required.
;(4) [[TPO Roof Systems Standard#PART_10|'''Metal water-stop flashing''']]: Dimensions as specified in design. Mechanically attach to inside face of door sill. Cut flashing to fit opening width.
;(5) [[TPO Roof Systems Standard#PART_10|'''Membrane flashing (not shown)''']]: Optional, if field membrane stops at edge securement. Install to overlap and seal in metal water-stop flashing.
;(6) [[TPO Roof Systems Standard#PART_10|'''Membrane corner reinforcement''']]: Install as required by the Standard and the ''manufacturer''.
;(7) [[TPO Roof Systems Standard#PART_13|'''Metal base flashing (under door)''']]: Optional; protection for membrane when pavers are installed (shown), or when exposed membrane is vulnerable to damage. Mechanical fasteners must be at least 87.5 mm (3-1/2”) above the drainage plane.
;(8) [[TPO Roof Systems Standard#PART_10|'''Membrane flashing (not shown)''']]: Optional, if field membrane stops at edge securement. Applicable for exterior-insulated walls. Seals roof membrane flashing to air/vapour barrier on wall and provides sufficient exposure for positive union with WRB (by others). Mechanically secure membrane (metal base flashing used for securement in this detail).
;(9) [[TPO Roof Systems Standard#PART_10|'''Metal base flashing (walls)''']]: Optional; protects membrane flashing from damage, and functions as removable panel to permit access to membrane flashing for future replacement.
;(10) [[TPO Roof Systems Standard#PART_14|'''Pavers and pedestals''']]: May be installed by others, if specified. See '''Part 14''' for material and application requirements. Must be at least 12 mm (1/2”) away from other pavers, and from membrane flashing or metal base flashing, to permit adequate drainage.

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=== RELATED WORK BY OTHERS ===
;(A) '''Wall and cladding''': Generic and representative only.
;(B) '''WRB (Water Resistive Barrier)''': Generic and representative only.
;(C) '''Door and jamb assembly''': Generic and representative only.
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'''NOTE''': See the [[TPO Roof Systems Standard | '''Standard''']] for additional requirements.

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TPO Low Door Opening - Revision history

James Klassen at 16:23, 7 November 2025