Metal roofs can last up to 100 years, with installers providing 50-year warranties. Because of their longevity, most metal roofs are less expensive than asphalt shingles in the long term.
Metal roofing can consist of a high percentage of recycled material and is 100% recyclable.[8] It does not get as hot as asphalt, a common roofing material, and it reflects heat away from the building underneath in summertime.
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On a larger scale, its use reduces the heat island effect of cities when compared to asphalt. Coupled with its better insulating abilities, metal roofs can offer not only a 40% reduction in energy costs in the summer, but also up to a 15% reduction in the energy costs in the winter according to a 2008 Study by Oak Ridge National Laboratory.
This finding is based on the use of a strapping system of four inches between the plywood and "cool-color" metal on top,which provides an air gap between the plywood roof sheathing and the metal. Cool-color metals are light, reflective colors, like white. The study went on to say that re-sealing and insulating air ducts in the attic will save even more money.
1. Eave and ridge panels are double-pinned
Panels in standing-seam roofs aren't always double pinned (if installed to our recommended details). The panels may expand and contract more quickly if the roof isn't double-pinned, which decreases the risk of oil canning and fasteners backing out. As a reference, SMI's details pin all panels at the top so that expansion may occur at the eave.
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2. Using pipe boots to cover the seam
To correctly fit over a metal roof's standing seam, pipe boots cannot create sharp right angles; therefore, you must rely on caulking to make the penetration totally water-tight.
3. As a major water barrier, a sealant is used
Sealant is applied to flashing laps and penetrations in a roof system as a supplementary defense against water infiltration. As a general rule, the sealant should not be seen on the roof; huge globs of it are utilized as a major water-blocking mechanism.
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Conclusion
- Tel: 832-559-8463
- Email: info@swadleyroofsystems.com
- Location: 17413 FM 2920 Suite O Tomball, TX 77377
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- Website: https://www.swadleyroofsystems.com/
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