Granulated Overlay Roofing

Overlay is when your existing shingle roof is not removed and covered over with a new shingle roof this is a money saving option presented to many homeowners when it is time for a new roof.

Granulated overlay roofing.

Granular cap sheet roof. A roof cap sheet is fairly heavy because of the mineral surfacing and is widely referred to as 90 pound roofing in north america. This may not seem like the obvious way to replace a roof but many homeowners choose this method for some significant advantages. The granules give a roof color making it more attractive.

Most cap sheets resemble rolled asphalt roofing. Gaf tri ply app granule cap sheet 3 3 ft w x 32 25 ft l 100 sq ft white roll roofing. The old roof is not so much being replaced as it is being covered over with a new roof. One of the main advantages of a granulated roofing surface is cost as it s considerably cheaper than a smooth surface.

It is a liquid applied thermoplastic sebs rubber roofing system formulated to provide a durable vapor barrier. Cap sheet is a rubberized asphalt roll roofing product. Ac cap sheet consists of a proprietary modified asphalt a tough fiberglass reinforcing core and a granular surface to protect against uv weathering and physical damage. They consist of fiberglass mats coated with mineral granules for strength and durability.

The glass base resists the effects of moisture on the roof system while the aesthetically attractive granule surface provides an ultra violet protective surface and requires no additional surface coatings. Saves money contractor will save time savings to homeowner by installing new shingles over an existing roof. Surfacing for built up roof systems include aggregate such as gravel slag or mineral granules glass fiber or mineral surfaced cap sheets hot asphalt mopped over the entire surface aluminum coatings or elastomeric coatings. Ul class a b or c membrane constructions are available and system guarantees are available for up to 20 years.

Another perk is that you can find granulated roofing in various weights. Modified bitumen coating is one of the most popular solutions for protecting a flat or nearly flat roof. The system cures to form a seamless rubber membrane which not only waterproofs and protects the roof but also offers 82 reflectivity to reduce thermal movement and cool ambient air temperatures at ac intakes. There are several benefits to a granulated roofing surface over a smooth surface.

A mat of fiberglass polyester or other material is often used as a sturdy core for torch down roofing membranes. The pros and cons.