Overview
GRACE VYCOR™ ULTRA™ butyl roofing underlayment is engineered with a 100% butyl rubber adhesive and a layer of high-density cross-laminated polyethylene film, resulting in a product that is 30 mils (0.76 mm) thick, providing ease of handling and application. The robust adhesive formulation ensures exceptional adhesion to the roof deck, creating high-quality laps, an effective seal around roofing fasteners, and unparalleled stability at high temperatures. The release liner, designed to safeguard the adhesive, can be easily removed, allowing for a secure bond to the roof deck. This membrane is available in rolls measuring 70 ft (21.3 m) in length and 34 in. (864 mm) in width.
GRACE VYCOR™ ULTRA™ membrane is specifically designed to withstand extreme temperatures for extended periods. It is a reliable choice for sloped roof underlayment, offering protection against water accumulation behind ice dams and wind-driven rain. Additionally, it is recommended for use under certain types of metal
Features & Benefits
Heat resistance
The butyl adhesive is specially formulated to withstand temperatures up to 300°F .
Seals around fasteners
The butyl adhesive layer in GRACE VYCOR™ ULTRA™ membrane seals around roofing fasteners, resisting leakage caused by water back-up behind ice dams, and from wind-driven rain.
Better Chemical Compatibility
Compatible with low slope roofing materials such as EPDM and TPO.
Plastic release
Plastic is easy to remove and easy to dispose of.