Roof repair Carrollton: Built-up Roofs and Roof Rolling
Homes with flat or low sloping roofs usually have a built up roof surface, also called a tar and gravel roof. Sheds, garages and other buildings, sometimes covered with aspahlt roll roofing.
A built-up roof consists of several layers of felt, each coated with hot-or cold-dried asphalt. The top layer is surfaced with crushed gravel or stone. These roofs generally last from 10 to 20 years, depending on the solar intensity.
Asphalt roll rooffing, in the same way as asphalt sningles, have a life expectancy of 5 to 15 years. Sometimes, roll roofing of a matching color is used to cover the valleys of an aspahlt shingle.
Leaks in a flat roof is usually easy to find-they tend to be directly above the wet surface of the roof. Leaks may develop at flashings or where the wind has blown the gravel to expose the surface.
Leaks are also likely where weather and wear have caused blistered asphalt, seperations between the roofs surface and the edge of the dripping, curling, or splitting of the blanket that is exposed, and cracks or holes in the roof materials.
The repairs are the same for both built in and roll ceiling. Fill in any cracks with roofing cement. If you are repairing a blister or small hole, cut the patch, you need a piece of roll roofing or an aspahlt shingle. Use galvanized roofing nails to ensure that the patch. All holes that are larger than a square metre should be corrected by a professional carpenter.
If your roof is beyond repair and must be replaced, its best to call a professional. Resurfacing a flat roof with layers of roofing felt and hot mopped aspahlt is beyond the scope of most home owners because of the processes and equipment which, in addition, working with hot molton aspahlt is messy, difficult, and even a very dangerous job. the
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