They consist of fiberglass mats coated with mineral granules for strength and durability.
Granulated overlay roofing.
A roof cap sheet is fairly heavy because of the mineral surfacing and is widely referred to as 90 pound roofing in north america.
The granules give a roof color making it more attractive.
Granular cap sheet 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.
Saves money contractor will save time savings to homeowner by installing new shingles over an existing roof.
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.
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.
A mat of fiberglass polyester or other material is often used as a sturdy core for torch down roofing membranes.
The old roof is not so much being replaced as it is being covered over with a new roof.
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.
Cap sheet is a rubberized asphalt roll roofing product.
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.
One of the main advantages of a granulated roofing surface is cost as it s considerably cheaper than a smooth surface.
Modified bitumen coating is one of the most popular solutions for protecting a flat or nearly flat roof.
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.
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.
The pros and cons.
When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.
There are several benefits to a granulated roofing surface over a smooth surface.
This may not seem like the obvious way to replace a roof but many homeowners choose this method for some significant advantages.