Bitumen Roofing Materials Cost Guide ImproveNet
Nov 08, 2018· Repair Roof, Single family house or condo. ... Bitumen Roofing Materials Cost Guide. For those who want a more durable, lowermaintenance roofing option, the modified bitumen roofing system is quickly becoming the most popular alternative for flat or lowsloping roofs. The modified bitumen roofing system was invented in Western Europe in ...