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.
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.
I used Pro Roofing to repair flat roof on my garage. Ivan came to my house to give a free estimate for a new roof. This is exactly what I wanted. He went up on the roof and assessed it, inviting me up with him to show the roof condition and explain what needed to be done. The roof itself is modified bitumen, and Ivan recommended full tear off and replacement. There were 2 layers of roofing, overlaid on rafters that were not sufficient over the wide span of my 3 car garage. It would be a costly job, something I did not quite have the budget at the time. What I liked about him is he suggested is a repair until I could afford the full replacement. It's now been over 2 months since the repair and there are no leaks. Recommend them if you need repairs, and I will be calling them for replacement.