Difference between revisions of "TPO Metal Edge Termination"
Difference between revisions of "TPO Metal Edge Termination"
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Latest revision as of 23:14, 6 November 2025
Division D - Construction Details
TPO | Metal Edge Termination ( 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. | |
TPO Details
1 WORK INCLUDED
- (1) Suitable field substrate
- May be the roof deck or deck overlay (if an uninsulated system), or insulation and an overlay (if conventionally insulated).
- (2) Primer or adhesive
- For self-adhered or adhered membranes, as required by the manufacturer.
- (3) Field Membrane
- Selected to conform to the requirements in Membrane Composition, Thickness, and Selection Table 9.2.1.1. and conforming to the options or requirements in a Tested Assembly, an Assembly with Proven Past Performance, or a custom-engineered assembly. Carried continuously over the outside edge and down the vertical face at least 50.8 mm (2”), or 50.8 mm past any cold joint.
- (4) Sealant
- Applied to membrane, beneath metal edge flashing.
- (5) Metal edge (flush) flashing
- Fasteners spaced no more than 203.2 mm (8”) on the top face in two offsetting rows.
- A hemmed drip edge (shown) is required (Refer to Article 13.2.2.1. for fabrication requirements).
- (6) TPO vertical membrane flashing strip
- Heat-welded TPO strip, or pressure-sensitive strip, to the metal edge flashing at butt joints, overlapping joint by at least 101.6 mm (4”) on either side. Membrane strip must be applied over joints before top membrane flashing strip (7) is applied.
- (7) TPO horizontal membrane flashing strip
- Heat-welded to the top face of the edge metal flashing and welded to the field membrane; the membrane must overlap both the metal and the field membrane by no less than 101.6 mm (4”).
- (7) Edge sealant
- Must be applied to cut edges, as required by the manufacturer.
2 RELATED WORK BY OTHERS
- (A) Supporting (Structural) Roof Deck
- Generic and representative only.
- (B) Roof edge substrate
- Necessary for securing screw fasteners. Generic and representative only.
- (C) Wall assembly
- Generic and representative only.
NOTE: See the Standard for additional requirements.
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