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At some point in the life cycle of most houses, the roof will need to be replaced often more than once. In an EPA report prepared in the late 1990s it is calculated that almost 4 million homes per year have their asphalt roofs replaced, leading to the generation of 6.4 million tons of asphalt roofing waste. These replacements each year make roofing materials and asphalt shingles one of the largest contributors of construction debris in landfills today.
Roofs are subject to extreme temperature swings, where they receiving full sun exposure in the summer and the ridged freezing temperatures of winter. No other part on the average home sees a wider cycle of temperatures fluctuations. Precipitation, wind, and hail, also provide constant eroding forces that wear at the roofs protective surface and contributes to breaking it down further. Unfortunately because of this exposure to the elements, roofs typically need to be replaced several times over the life of the building.
So is there any other choice besides asphalt shingle that will have a longer life cycle and will help protect the environment? Absolutely! CK Builders is dedicated to finding quality products that last a life time. Metro Stone Coated Steel Roofing and Vermont Slate are just two of these options.
Here is what greenbuildingelements.com had to say about metal and slate roofing.
Metal Roofs are another option that can be considered. Metal roofs are far more durable than shingles. While a shingle roof may have a lifespan of up to 20-30 years, a metal roof should last at least twice as long. And even if the material for a metal roof costs three times as much as a shingle roof, by avoiding the cost of removing the old roof, buying new roof material, and installing the new roof when the shingle roof has worn out, the metal roof avoids that additional labor and material waste. Furthermore, at the end of its life, a metal roof can be usefully recycled. The biggest drawback to metal roofs is the relatively high embodied energy in refining and manufacturing metal, but the long life and recyclability of the material helps to balance that out.
Slate and Tile Roofs are very durable materials. Slate has been used for centuries, and slate roofs can, in some cases, last for many hundreds of years. Installation is expensive and labor intensive. Slate and tile are also heavy materials, an, as is the case with a vegetated roof, additional structural support may be needed in order to accommodate the weight. However, slate roofs are also some of the most durable, with buildings still standing with hundreds of years’ old slate roofs still on them. For most residential uses, the cost of such a roof (especially as a retrofit onto an existing home) is prohibitively expensive. The materials used to make these are fairly low impact: either slate, which is a natural stone that is split into thin pieces to be used for roofing, or clay tile, which uses an abundant material although it requires kiln firing in its manufacture. Both are relatively low embodied energy choices and are probably the most environmentally benign.
At CK Builders building green is important to us. Most of the products we install come with the energy star rating. From our Generations Siding and Windows, to our Metro Stone Coated Steel, we are staying environmentally conscious of our world and its resources, while trying to save you money in the long run.
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