The 9,800-square-foot addition project called for a self-adhered, modified bitumen roofing material that the city of Seattle had often used in the past. However, the specified material was quite costly, leading everyone to search for an alternative.
After considering a number of options, the project’s roofing contractor, SQI Inc., decided on PolyKool®, a highly reflective, modified bitumen roofing membrane that is part of Polyglass’ KOOL ROOF SOLUTIONS. PolyKool is an APP-based, modified bitumen membrane that utilizes Polyglass’ patented ADESO® Dual-Compound Self-Adhered Technology.
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This high profile job was one of two jobs completed at the time for the University of Hawaii Law School. The 1,500 square foot roof was in need of replacement. Having minimal disruption to the law students utilizing the library to study was critical to the job. After the tear off all the way to the concrete roof deck, a layer of Polyglass APP Base was applied, followed by Instastik applied EPS insulation Securock cover board, two plies of Elastoflex SA V base sheet and Polyflex® G FR in white.
The project was completed in record time and the result is a roof that will protect the library and its occupants for years to come.
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When specifying products and systems for the base they take into consideration a multitude of architectural design, functionality, safety and security issues. One of the key issues is fire protection due to the presence of weaponry and ammunition. Using Elastoflex SA V and Elastoflex SA P allowed for an equipment-free installation that was safe, easy and quick.
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This seaside luxury resort is situated on a cliff overlooking the Pacific Ocean. Considering the high winds that can be experienced in this area, the builders wanted a premium product to cover the 180,000 square feet roof with a premium product. They chose Polystick® TU Plus to be installed under all the Mediterranean tiles on this world-class resort and spa.
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The building has several eco-friendly features including a green roof. A garden roof was installed over a Polyglass SBS roof system which included 1/2″ Densdeck prime that was mechanically attached, followed by Elastobase V torched vapor retarder. Then Polyisocyanurate insulation was mechanically attached with 1/4″ Densdeck prime set in adhesive. The system was finished with Elastoflex SA V base sheet, a ply of Elastobase V torched and capped with Elastoflex S6 G FR in white.
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The new system specified included membranes from Polyglass, beginning with its Elastoflex SA V FR base sheet. Polytherm 3.1-inch polyiso insulation board was adhered to achieve an R value of 19. The system was then topped with one ply of Polyglass’ Elastoflex SA V FR base, a self-adhered modified bitumen base sheet. Polyflex G FR, a polyester-reinforced mod bit granulated cap sheet, was then torch-applied to finish the job. It is available in a variety of colors, and white was chosen for this project.
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