What You Need to Know About Metal Roofing

If you are a homeowner interested in installing metal roofing on your home, we are here to assist you in researching this type of roof. Metal roofing is long-lasting and comes in a variety of colors and patterns. Here are some things you need to know about metal roofing before deciding to use this type of roof on your home.
  • Life expectancy. If properly installed the metal roof should last as long as the house. Metal is resistant to fire, mildew, insects, and rot. Warranties Barry, but most companies back up products for 20 to 50 years. Paint finishes typically have a 30-year limited warranty.
  • Compared to the weight of the tile at 750 pounds per square, or concrete tile at 900 pounds per square, metal roofing is a very light weight option. Most varieties range from 50 to 150 pounds per square. Because of the materials light weight, you can save on engineering and building the supporting structure.  If you’re building a house or in addition you can often downsize or reduce the number of roofing support.
  • Easy installation. Most metal roofing materials coming multiple shingle sections or in 12 to 36-inch-wide panels. A skilled contractor can install metal roofing quickly and efficiently.
  • Fire resistance. Because the metal roof materials are noncombustible, they typically have a Class A fire rating, which is the most fire-resistant rating. Most metal roofs supplied over a combustible Materials such as wood shingles have a lower, Class C rating for this reason.
  • Maximum shedding of rain and snow. Metal roofing is practically impervious to rain and snow because of the way the panels interlock and because the surface is hard and slippery. In addition, dark tones of metal roofing quickly warm in the snow encouraging the snow to melt.
Although metal roofing has many advantages, it also has its disadvantages, including but not limited to:
  • In metal roof must be installed correctly. Roofs with exposed fasteners are particularly vulnerable to improper installation. If screws attached through the flat surfaces, rather than the raised edges, rain water can run down the roof and seep into the screw holes.
  • Expansion and contraction. Because metal expands and contracts as it warms and cools, most new products have fastening systems that accommodate movement. Expansion and contraction on hot days can cause a wavy effect.
  • Many people assume that because metal conducts electricity, it also attracts it. This isn’t really the case, and many instances have been documented that lightning has struck trees or other high objects located near metal roofs rather than the roofs themselves.
  • House fire. Although metal roofs are good at guarding against the fire that approaches from outside a house, they are not ideal for fires that starts inside a house. With a serious housefire, firemen may need to cut through the roof to put out the fire.
If you’re interested in learning more about a new metal roof installation please contact The Dan Banks Company at 410-392-9700 for a free estimate. Or you can contact us through our online contact form.