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Roofing represents only a fraction of building costs, yet the cost is out of proportion to its value. Roofs are important in the preservation, beauty, and durability of your home. We want to provide you with the roof you want, at an affordable price, with a warranty you can count on. Typical composition shingle roofs can last anywhere from a 20-year shingle to the thickest which are limited lifetime shingles. The 20-year shingles are relatively inexpensive but the lifetime shingles are considerably more expensive. When a layer of shingles wears out they are usually stripped along with the underlayment and roofing nails, allowing a new layer to be installed. An alternative method is to install another layer directly over the worn layer. While this method is faster and less expensive, it does not allow the roof sheathing to be inspected for water damaged often associated with worn shingles. Having multiple layers of old shingles under a new layer causes roofing nails to be located further from the sheathing, weakening their hold. The greatest concern with this method is that the weight of the extra material could exceed the deal load capacity of the roof structure and cause collapse. Slate roofs, when properly installed, are often considered the best. A slate roof may last 75 to 150 years, and in extreme cases even longer. The durability depends on the quality of slate used and the levels of skill employed by the roofer. However, slate roofs are often very expensive to install, particularly in areas where slate roofing is not common. Steel shingle or standing-seam roofs last about 50 years or more depending on both the method of installation and the moisture barrier (underlayment) used. The costs of the steel shingle is between the cost of shingle roofs and slate roofs. Solar Roofs are newer systems that include solar shingles, which generate electrically as well as cover the roof. There are also solar systems available that generate hot water or hot air, which can also act as a roof covering. More complex systems may carry out all of these functions: generate electricity, recover thermal energy, and also act as a roof covering. There are different ways that solar systems can be integrated with roofs: Integrated in the covering of pitched roofs, e.g. solar shingles - Mounted on an existing roof, e.g. solar panel on the tile roof
- Integrated in a flat roof, e.g. PVC
- Mounted on a flat roof with a construction and additional weight to prevent uplift from wind
Cool roofs and green roofs are becoming increasingly popular, and in some cases are mandated by local codes. Cool roofs are defined as roofs with both high reflectivity and high emissivity. Green roofs have soil placed over the waterproofing membrane in which plants and even trees are planted.
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