Weather Resistant Barriers to Grow 7% Annually to $4.5 Billion in 2016 ... The Herald | HeraldOnline.com (press release) Total demand for weather resistant barriers (WRB), including building wraps, roofing underlayment, membranes, wrapped sheathing, rain screens, insulating board stock, spray polyurethane foam, and building paper will grow at about 7% per year from about ... |