Roll Roofing

Roll roofing is a flat roofing material that is manufactured in rolls, and laid on a roof in overlapping strips.

Some rolled roofing materials include asphalt, asphalt saturated organic felt (which can be standard or specification felt), SBS modified, re-enforced fiber-glass, granulated roll roofing, and more. Often materials are mixed in order to enhance roll on roofing performance and durability qualities. Some of these considerations comprise flexibility, water absorption, tear resistance, adhesion, thermal stability, and slip resistance. Asphalt roll roofing is the most commonly used roll roofing material, yet is suitable to steep roofing applications. Fiberglass roll roofing is appropriate for low sloped roll roofing applications, while modified bitumen is used on almost all roofing types.

Roll roofing is the common term for asphalt saturated felt roofing.

• Smooth Surfaced Roll Roofing. Also termed coated felt, this smooth-surfaced roofing roll is covered with ground talc or mica. It is used primarily as flashing to seal the roof at intersections and protrusions, and for providing extra deck protection at the roof's eaves and valleys.
• Saturated Felt. This asphalt-impregnated, organic-based felt is used as an underlayment between the roof deck and the roofing material. Saturated felt is produced in a variety of weights and is also called asphalt roll roofing.
• Specialty-Eaves Flashings. This self-adhering, polymer-modified bituminous sheet material is designed for special flashing applications along roof eaves and in other areas. It is used particularly in regions where ice dams and water backups are common.
• Mineral-Surfaced Roll Roofing. This type of roll roofing is used alone as a primary roof covering, most frequently on small or secondary-use buildings such as supply buildings, barns, garden sheds, etc. The top surface of the roll is imbedded with mineral granules.

Roll Roofing Installation

Roll roofing should be applied over clean, dry plywood, with the sheets running parallel to the eaves. All selvage laps and end laps should be sealed with roofing cement. Roll roofing can be applied to any roof that has a slope of at least 1 in 12.

There are two methods of installing rolled roofing, namely the hot asphalt method and the cold asphalt method. Where the hot asphalt method is a bit conventional, the cold asphalt method is the really popular one. In the cold asphalt rolled roofing installation method, the spreadable adhesive is smoothed on the roof top initially and then the roll roofing is installed over it. Roll roofing can be installed using a simple adhesive and even without using any nails. Before installation, make sure that the roof top is totally clean and dried up.

Related Services

• Commercial Roofing
• EPDM Roofing
• Torch On Roofing
• Roll Roofing
• Flat Roofing

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