The old roof is not so much being replaced as it is being covered over with a new roof.
Granulated overlay roofing.
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.
They consist of fiberglass mats coated with mineral granules for strength and durability.
Ul class a b or c membrane constructions are available and system guarantees are available for up to 20 years.
It provides superior resistance against the elements and damage to the roof as well as adding extra benefits like flame resistance.
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.
When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.
Manufacturers also may embed small granules into the top of the membrane to add fire resistance color options ultraviolet uv radiation protection or other distinctive characteristics.
Cap sheet is a rubberized asphalt roll roofing product.
Granular cap sheet roof.
It is a liquid applied thermoplastic sebs rubber roofing system formulated to provide a durable vapor barrier.
The pros and cons.
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.
Most cap sheets resemble rolled asphalt roofing.
Another perk is that you can find granulated roofing in various weights.
The granules give a roof color making it more attractive.
This may not seem like the obvious way to replace a roof but many homeowners choose this method for some significant advantages.
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.
Saves money contractor will save time savings to homeowner by installing new shingles over an existing roof.
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.
Gaf tri ply app granule cap sheet 3 3 ft w x 32 25 ft l 100 sq ft white roll roofing.
