COLVENT™ 180 TG SKU: 00383
COLVENT™ 180 TG SKU: 00383
COLVENT 180 TG is a partially-adhered, heat welded elastomeric modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies, or as a vapor retarder. COLVENT 180 TG is composed of non-woven polyester reinforcement and a proprietary high quality elastomeric styrene-butadiene-styrene (SBS) polymer-modified bitumen blend. The underside consists of
ribbon strips of SBS modified bitumen covered by plastic burn-off film for heat welding to approved substrates. The 3 in side-laps on the top and underside are surfaced with plastic burn-off film for heat welding side-laps watertight. The ribbon strips are arranged in a proprietary pattern to allow vapor pressure to vent between the substrate surface and the unadhered portions of COLVENT 180 TG. The top surface is sanded for a cold adhesive-applied interply or cap sheet. For vapor retarder applications, DUOTACK may be applied to the top surface to adhere approved insulation. Approved lightweight insulating concrete may also be applied to the top surface of COLVENT 180 TG.
- ASTM ASTM D6164
- Component Base
- Installation Method Heat Welded
- Reinforcement Polyester
- Thickness 120 mils (3.0 mm)
- Thickness 118 mils (3.0 mm)
- Topside Sanded
- Underside Burn Off Film
Unroll the sheet onto the roof surface and allow to relax prior to installation. Lay out COLVENT 180 TG to butt the ends, do not overlap the ends. The butted ends are sealed watertight using a fully-adhered, 6 in wide sealing strip of SOPRALENE 180 Sanded or other approved base ply. During application, as COLVENT 180 TG is unrolled, apply heat from an approved roof torch high on the roll as necessary to remove the burn-off film and melt the ribbons of bitumen. Ensure the sanded underside is not overheated in order to maintain open vent channels between the adhered bitumen ribbons. Fully-adhere all side-laps watertight. Refer to the SOPREMA SBS Roofing guide for additional guidelines. The applicator is responsible for ensuring conditions are satisfactory to proceed with the appropriate heat welding methods.
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