A 60 +/-5 mils thick fiberglass reinforced, high tack, polymer modified bitumen based architectural sheet membrane that can be installed on vertical surfaces of culverts or architectural above or below grade applications.
The Royston 104 AHT is a high-performance architectural membrane designed for various construction applications. This prefabricated **reinforced laminate** features an impregnated woven fiberglass, a high-strength inner core, and is sandwiched between two layers of **polymer modified bitumen**. Its construction provides exceptional **tensile strength** and **puncture resistance**, ensuring durability and longevity in demanding environments.
The **1/4 mil thick Mylar Film** top surface enhances protection against moisture permeation, while a unique **3-inch leading edge** guarantees a positive compound-to-compound seal at overlaps. The flexible membrane accommodates minor movements due to thermal expansion, contraction, or substrate settlement. Royston 104 AHT is ideal for vertical installations without slumping thanks to its high-tack adhesive, and transverse seals can be easily achieved using Royston Flex-Flo Adhesive Sealant or heat sealing methods.
Royston 104 AHT exemplifies a reliable solution for construction projects requiring efficient installation and long-lasting performance. The advanced materials and construction techniques maximize its protective capabilities, reinforcing its position as a leader in the architectural membrane market.
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A prefabricated fiberglass reinforced woven laminate, with a high strength inner core sandwiched between two layers of a polymer modified bitumen.

A prefabricated fiberglass reinforced woven laminate, with a high strength inner core sandwiched between two layers of a polymer modified bitumen.

| Polyester |
| Color | Black |
|---|
| Thickness | 60±5 mils |
|---|

A prefabricated reinforced fiberglass and polyester blended laminate with a strength inner fabric reinforcement, sandwiched between two layers of a polymer modified bitumen.

A prefabricated architectural membrane, constructed with a non-woven fiberglass core, sandwiched between layers of polymer modified asphalt with a polyester surface film.