Asphalt-and-granule roll roofing is essentially the same material as asphalt shingles, however rather than being in a tile shape it initially comes in what amounts to rolled up carpets. The amount of exposure from one layer to the next is much greater than it is with roll shingles. Asphalt roll roofing is either be entirely covered with granules and installed to provide a single layer of coverage, or only half the sheet will be covered in a granule layer. The uncoated half and half of the shingle layer above it are covered with roofing cement for an improved seal.
People rarely mind using asphalt roll roofing because the angle is so low that it is not visible from street level. It is also one of the most inexpensive roof covering material, however it cannot be used on level roofs.
EPDM Rubber Roofing
Rubber membrane roofing, also known as ethylene propylene diene monomer (EPDM) roofing, is installed in wide sheets using a specialized latex bonding adhesive, but it is not nailed in place. Often, rubber roofs are fully bonded to the roof deck with the cement, and the absence of nails makes it an even better choice for low-pitch roofs that are susceptible to leaks. You may choose to install a rubber membrane on a pitched roof simply because it is seamless and easy to install, requiring only a perimeter bond if you are mechanically fastening strips.
The membrane is available in 10- or 20-ft. wide rolls to help reduce the total number of scams. In recent years, EPDM membrane has become more do-it-yourself friendly, and it’s available to consumers through roofing suppliers and some home centers. It is comparably priced to quality asphalt shingles. However, EPDM’s black color won’t win any beauty contests, and it will be the hottest roof around in mid’s summer heat.