760-743-0048 About Roofing Systems Roofing Services Waterproofing Sheet Metal Safety Experience Contact Us Client Login Built-Up Roof Home > Roofing Systems > Built-Up Roof A built-up roof is composed of three elements: felt, bitumen and surfacing. Felt—which is made of glass, organic or polyester fibers—serves much of the same purpose as reinforcing steel in concrete. The felt is necessary as tensile reinforcement to resist the extreme pulling forces in the roofing material. Felt is installed in a layering fashion, which allows more bitumen to be applied to the whole system. Bitumen—either coal-tar or asphalt— acts as the “glue” that holds the felt layers together. It is also the waterproofing material in the built-up roof system. Surfacing—normally applied to built-up roofs, is composed of either smooth, gravel, slag, or a mineral-coated cap sheet. Gravel or slag may be embedded into the still-fluid flood coat. Gravel and slag serve as an excellent wearing surface to protect the membrane from mechanical damage. On some built-up roof systems, a mineral coated cap sheet is applied on top of the plies of felt. LEARN ABOUT OTHER ROOFING SYSTEMS & MATERIALS Metal Roofing Thermoplastic Polyolefin (TPO) PVC EPDM Shingles Tile Day Lighting OUR HAPPY CLIENTS Contact Name* Company Name* Email* Phone* How can we help you? CAPTCHA Sylvester Roofing Co., Inc. 2255 Barham Drive, Suite A, Escondido, CA 92029 T 760-743-0048 F 760-743-4152 E service@sylvesterroofing.com Follow us Copyright 2021 © Sylvester Roofing Co, Inc. All rights reserved. | Developed By TinyFrog Technologies.

760-743-0048 About Roofing Systems Roofing Services Waterproofing Sheet Metal Safety Experience Contact Us Client Login CONTACT US Costa de Luna Ballroom at Omni La Costa Resort The Omni La Costa Resort & Spa's newest ballroom, Costa de la Luna, was completed in July 2020. Inspired by the architecture of Spanish missions native to Southern California, the completion of the project adds an additional 30,000sq feet of indoor and outdoor event space including an additional event lawn to the resort. Sylvester Roofing was chosen by our partners at davisREED Construction to construct a 33,000sq ft Mechanically Fastened Carlisle Single Ply 60 mil TPO Roof membrane and a 10,000sq ft 1 pc Boral Red Clay -S- Tile Sloped roofing system. OUR HAPPY CLIENTS Contact Name* Company Name* Email* Phone* How can we help you? CAPTCHA Sylvester Roofing Co., Inc. 2255 Barham Drive, Suite A, Escondido, CA 92029 T 760-743-0048 F 760-743-4152 E service@sylvesterroofing.com Follow us Copyright 2021 © Sylvester Roofing Co, Inc. All rights reserved. | Developed By TinyFrog Technologies.