Boral Roofing LLC has introduced Boral™ Ply 40, a SBS modified fiberglass reinforced underlayment. Available for sale through roofing distributors and select large roofing contractors in California, Arizona, New Mexico and Texas, this underlayment is suited for protection under tile, shake and shingle roofing options or as a waterproof base for torch down APP, SBS and BUR systems. According to the company, this product is ideal for use under all Boral Roofing clay and concrete tile roofing systems. Boral Ply 40 provides all season durable protection and is easily to install. The product is sold in rolls for an easy, roll-on application. For more information, visit www.boralna.com.