Asphalt is one of the oldest materials used in the roofing industry. Although asphalt can be an excellent waterproofing material, it tends to crack as a result of freeze-thaw cycles. To increase the thermal window and improve strength and performance, various modifiers have been added to asphalt.

At The Garland Co., Cleveland, researchers have been working on OptiMax,™ a roof membrane that combines polyurethane and asphalt, producing an active modification process that causes the polyurethane to chemically react with the asphaltene to reduce the effects of exterior exposure. Surfacing minerals are attracted to polyurethane and adhere longer, reducing the aging process.

To submit a photo for Close-up, email or mail a photo to Professional Roofing Attn.: Close-up, 10255 W. Higgins Road, Suite 600, Rosemont, IL 60018. Submittals should include a photo, as well as a description or background for the photo. A $100 gift card will be awarded for the photo that is chosen to be featured in Close-up.