Flat roofs
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Posted On :
Nov-08-2011
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Article Word Count :
559
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Flat roofs are a great way to keep a building safe from water. Know exactly what to with a flat roof to make sure you have a working roof system that will last a long
time.
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Flat roofs are a great way to keep a building safe from water. Know exactly what to with a flat roof to make sure you have a working roof system that will last a long
time.
Although they may look good and are very common, flat roofs do not require routine Repair and detailed to effectively prevent water infiltration. If done correctly, you will be happy with your flat roof for a very long time.
Flat roofs are not as glamorous and / or popular as its more recent counterparts, such as slate roofs, tile, or copper. However, they are equally important and require further more attention. To avoid throwing money in the short term repairs, you should know exactly how flat roof systems are designed, the different types of flat
roofs that are available, and the importance of inspection and routine maintenance.
A flat roof system works by providing a moisture barrier on a building. It consists of one or more layers of hydrophobic material that is placed on a deck structure with a vapor barrier is usually placed between the bridge and the roof membrane.
Flashing or thin strip of material such as copper, intersect with the membrane and building components to prevent water infiltration. The water is then directed to drains, downspouts and gutters slight pitch of the roof.
There are four most common types of flat roofing systems. Included in order to increase durability and cost, they are: roll asphalt, single-ply membrane, multi-ply or
built, and flat seam metal. and is applied to existing roof, $ 20 per square meter feet or more for new metal roofs.
Used since the 1890s, asphalt roll roofing generally consists of a layer of asphalt saturated felt organic base or fiberglass are applied on the roof felt with nails and cold asphalt cement and usually covered with a granular mineral surface. The seams are usually covered with a roof composed. It can last about 10 years.
Membrane monolayer coverage is the newest type of roofing material. It is often used to replace multiple-ply roofs. 10 to 12 years are guaranteed typical, but good installation is crucial and maintenance is always necessary.
Multi-ply or built-up roofs, also known as BUR, is made of overlapping rolls saturated or coated felts or mats that are interspersed with layers of bitumen and
surface of a granular roofing sheet, ballast or tile pavers that are used to protect the underlying materials to the weather. BURS are designed to last from 10 to 30
years, which depends on the materials used.
Ballast, or aggregate, crushed stone or gravel, the wastewater is incorporated into a coating tar bitumen or coal. Since the ballast pavers or tiles cover the membrane, it is inspect and maintain the seams of the roof difficult.
Finally, flat-seamed roofs have been used since the 19th century. Made from small pieces of metal soldered flush at the joints, it can last several decades, according to
the quality of equipment, maintenance and exposure to the elements.
Galvanized require regular painting to prevent corrosion and divide seams must be re soldered. Other metal surfaces, such as copper, can become pitted and a raid pinholed acid and usually requires replacement. Today, copper, lead-coated copper and terne coated stainless steel are favored as long-term flat roofs.
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Article Source :
http://www.articleseen.com/Article_Flat roofs_101507.aspx
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Author Resource :
Licensed roofing contractors |metal roofing and repairs | roofing waterproofing
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Keywords :
roofing system, roofing, flat roofs, what are flat roofs,
Category :
Home and Family
:
Home Improvement
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