APP and SBS modified asphalt roofing membranes reinforced with polyester and/or fiberglass mat offering excellent tensile strength and dimensional stability. Roof membrane plies are designed to precisely fit your needs.
APP (Atactic Polypropylene) modified asphalt roofing membranes are reinforced with polyester and/or fiberglass mat offering excellent tensile strength and dimensional stability. APP membranes can be heat-welded or cold-applied and are meant to be applied directly over an acceptable substrate or as part of a multi-ply system. Consider modified bitumen as a combination of the previous two materials. Modified bitumen consists of multiple layers of tar or asphalt that has been combined with polymers similar to those found in single-ply applications. Modified bitumen is applied in rolls. We use "hot" a method for adhesion, such as torches (open flame).
Flat roofing and roof repair in Pinellas (Modified bitinum APP and SBS roofing systems)
Self-Adhering Cap Sheet is a durable, modified bitumen membrane designed and manufactured to meet industry and code requirements. The product is designed for use as a waterproofing membrane and is reinforced with a polyester mat, which is coated with a polymer-modified asphalt. The cap Sheet is a granule-surfaced roofing membrane designed to be used with a self-adhering base/ply sheet to provide long-lasting protection for the low-slope areas of your property. Self-Adhering systems are applied with out torches, open flames, hot asphalt, or messy solvent-based adhesives.
SBS (Styrene-Butadiene-Styrene) modified asphalt, roofing membranes are reinforced with polyester and/or fiberglass mat offering superior flexibility, excellent tensile strength and dimensional stability. SBS modified bitumen membranes are meant to be part of a multi-ply roof system. Peel & Seal type roof systems are the ideal solution for hundreds of uses ranging from full-roof-applications to difficult waterproofing areas.
Specialized applications include dormers, sunroom additions, “open” porches, storage and agricultural buildings, and mobile home roofs. It also solves waterproofing problems around chimneys, vents, ducts and other irregular features. Help protect your investment. Home roofing by Dunn Contracting for the roof on your home.
SBS Modified (peal and seal) Pictures
APP Modified Bitinum (torch down) Pictures
Home roofing by Dunn Contracting for the roof on your home.
Dunn Contracting is a roofing company that installs flat roofs on residential homes. Flat roofing and roof repair in St. Petersburg.
Dunn Contracting installs a (secondary water barrier) base underlayment Certainteed BlackDiamond base and white APP mineral surfaced CertainTeed Flintlastic GTA thickness of (168 mils) membrane to flat roof or Certainteed Flintlastic® SA Cap roofing membrane self-adhering SBS modified bitumen (160 mils)
These are important options often disregarded. Rigid or Tapered insulation are critical for achieving slope for drainage and energy savings for roofs which do not comply with such specifications. Home roofing by Dunn Contracting for the roof on your home.
These are the "creme de la creme" in the asphalt applications. Such products are upgraded with SBS rubber additives ensuring physical endurance through better expansion, flexibility, higher fire rating and self-sealing options. Modified Bitumen can be installed with traditional hot asphalt or cold applied adhesives. Be sure to ask about Modified Bitumen upgrades when your next roof is installed. Home roofing by Dunn Contracting.
Self-Adhering Roofing system
A self-adhering roofing system is comprised of a self-adhering ply base with a top surface designed to accept a self-adhering roofing membrane, a self-adhering mid ply and a self-adhering cap sheet and the roof system specifications have been engineered to provide roofs that offer excellent longevity and performance.