Edgewood Terrace Commons IV, a 258-unit high-rise building in Washington DC, was reroofed with Polyglass’ multi-ply roof system. The 25,000 sq. ft. roof had severe ponding issues and held water after heavy rainfalls and snow storms.
To solve the roof challenge, roofing contractor DC Duct & Sheet Metal LLC tore off the existing system down to the concrete deck and created a tapered design to ensure positive drainage. The tapered insulation was adhered to the deck followed by cover board and Polyglass’ high performing three-ply roof system. Products included two-plies of Polyglass’ Elastoflex SA V self-adhered base sheet and Polyflex® G torch-applied cap sheet in white.
To seal the large number of penetrations, the roofing crew used PolyFlash® 1C, a one-component, liquid flashing compound that can be used to seal roofing and waterproofing details such as walls, curbs, vents, roof drains, pitch pans and unusually shaped penetrations.
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Project Overview:
Encore Custom Preforms produces more than 84 different types of plastic bottles at its Mississauga, Ontario facility for companies across North America. When the 20,000 sq.ft. built-up roof (BUR) on the facility needed to be replaced in 2016, the company hired Cherry Roofing to inspect and recommend a new roof system. A seasoned roofing contractor serving the Greater Toronto Area since 1979, Cherry Roofing selected a hybrid BUR. Cherry Roofing used Polyglass’ multi-ply SBS (Styrene-Butadiene-Styrene) membranes to provide long-term waterproofing protection. With a 20-year warranty, the new roof system will protect the building and assets for years to come.
The Roof System:
After removing the existing BUR and cleaning the steel deck, Cherry Roofing adhered a Kraft vapor barrier to the deck. The 1.5” polyisocyanurate insulation was hot-mopped over the vapor barrier followed by the installation of 1/2” fiberboard. The crew hot-mopped two plies of Elastoflex S6, a SBS base sheet reinforced with a polyester mat and saturated with a rubberized asphaltic compound to increase durability. The roof system was finished with a top flood coat of asphalt followed by a pea gravel pour. Elastoflex S6 G Oak, a premium SBS cap sheet reinforced with a non-woven 250 grams polyester map, was torch-applied to the perimeter flashing.
Project Overview:
Cherry Roofing installed a new hybrid built-up roof (BUR) system on the Maxxit Systems building in Mississauga, Ontario. Maxxit Systems designs and develops interior and exterior environments for retailers, grocery stores, restaurants and automobile dealerships. The 20-year roof features Polyglass’ multi-ply SBS (Styrene-Butadiene-Styrene) membranes and will provide long-term performance for the facility where a team of creative thinkers bring design ideas to reality.
The Roof System:
After removing the existing BUR and cleaning the steel deck, Cherry Roofing adhered a Kraft vapor barrier to the deck. The 1.5” polyisocyanurate insulation was hot-mopped over the vapor barrier followed by the installation of 1/2” fiberboard. The crew hot-mopped two plies of Elastoflex S6, a SBS base sheet reinforced with a polyester mat and saturated with a rubberized asphaltic compound to increase durability. The roof system was finished with a top flood coat of asphalt followed by a pea gravel pour. Elastoflex S6 G Oak, a premium SBS cap sheet reinforced with a non-woven 250 grams polyester map, was torch-applied to the perimeter flashing.
Onyx Roofing, a residential and commercial roofing contractor based in Vaughan, Ontario, reroofed a 35,000 sq.ft. warehouse building in Vaughan, Ontario using Polyglass’ multi-ply system. Products included Elastoflex V 2.2., a high quality, fiberglass reinforced, SBS (Styrene-Butadiene-Styrene) modified bitumen roofing membrane. For the weathering surface, Onyx Roofing chose Elastoflex S6 G 250 cap sheet in Oak. Elastoflex S6 G is a SBS modified bitumen membrane reinforced with a non-woven 250 grams polyester mat. The cap sheet is available in 10 colors.
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Roofing Contractor Ainger Group upgrade the roof of 20 homes on the Canadian Air force Base in Trenton, Ontario. Polyglass’ Elastoflex SA P Gray Slate, a self-adhered cap sheet was selected for the 400 sq.ft. flat part of the roofs. The cap sheet was a perfect match for the shingles and are available in 10 colors.
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Project Overview:
Roofing Contractor 3-D Roof System installs Polyglass’ Vegetative Roof atop the SHAG (Senior Housing Assistance Group) Lynnwood, Wash. property. Backed by a 30-year warranty, the three-ply modified bitumen system chosen provides the critical waterproofing needed for a vegetative roof assembly. At 500-mils thick, the system adds layers of defense for the roof and enables long-term performance. In comparison, singly ply membranes typically have a 60 mils total thickness.
Products include two layers of Polyglass’ Polyflex® Smooth APP (Atactic Polypropylene) modified bitumen membrane for the base and interply sheets. For the final layer, Polyflex® G White APP cap sheet was installed to provide resistance to punctures, tears, abrasion, foot traffic and the elements. Elastoflex SA V—a high performing self-adhered membrane featuring Polyglass’ ADESO® Technology was used for the flashing details.
Challenges:
3-D Roof Systems began the roof installation in October 2016, which according to the Seattle Times had record breaking rainfall. But 3-D Roof Systems was prepared for the inclement weather. The team used a system of inflatable tenting adapted for use on the roof to work around the weather. As they completed sections of the roof, the tent was moved to new areas that needed to be worked on.
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