StraightFlash for residential window flashing is ideal for protecting heads and jambs of rectangular windows. By bridging the interface between the rough opening and building envelope, StraightFlash protects these vulnerable areas that are subject to potential water damage. StraightFlash is a premium, self-adhered flashing made with butyl-based adhesive layer. This makes for a durable, premium window flashing that helps protect rain from entering around window openings in residential and commercial structures.