Pros And Cons Of Metal Roof

Pros And Cons Of Metal Roof

Metal roofing pros and cons, includes tips for for evaluating and repairing metal roofs.A Guide to Metal Roofing Pros and ConsWhen my husband and I first moved to the country, I was amazed at the number of homes in our neck of the Georgia woods that had metal roofs . . . and at the number of those tin-topped abodes that displayed “For Sale” signs out front. So the next time I spoke with a local realtor friend, I asked him if he found it difficult to market metal-roofed houses. At the question, his face cracked with a knowing smile.”Anything with a tin roof is going to sell for less . . . if you can find a buyer for it at all,” he told me. “Even your typical back-to-the-lander doesn’t want to take one of those buildings on. And most of the people to whom I do manage to sell metal-topped homes tell me they plan to replace the roof as soon as they get the money together.””Well,” I said to myself, “if my friend is right, and if my area is typical, it seems that buying a home topped with tin might be one way to save a good bit of money . . . and such a move could make it possible for a would-be ruralite to settle in the country that much sooner.” In short, my curiosity was whetted, and — since we had some city friends looking for a bargain-priced house near us — I decided to learn all I could about metal roofing pros and cons. I wanted, above all, to discover why they suffer such a poor reputation . . . and if they deserve it. It’s taken some time, but what I’ve learned has really opened my eyes to the hidden benefits of tin-tops . . . and I’d like to share some of that knowledge with you here. Metal Roof MaterialsFirst of all, most “tin” roofs aren’t made of tin. You see, there are several metals used for roofing. Below, I’ve listed those you’re most likely to encounter, along with some of the strong and weak points of each.Tin. The more accurate term here is terne, or even terneplate . . . but no matter what moniker you hang on the stuff, it’s one of several soft metals treated with a coating of lead and tin. A tin roof that’s properly installed can last a good 40 to 50 years.Galvanized Steel. This is a wonderfully inexpensive roofing material that will last 60 years or more . . . if properly cared for. It’s made of alloyed steel, with a protective coating of zinc. Galvanized steel is also highly rust-resistant.Aluminum. The use of aluminum as a roofing metal is becoming increasingly popular, since it resists corrosion and requires little maintenance. Aluminum also tends to reflect heat better than steel, thus keeping a house cooler during the summer. Aluminum roofs will last about 35 years.Copper. You won’t see copper being used for roofing much these days, even though it’s by far the longest-lasting of all roofing materials (many penny-metal lids have lasted hundreds of years and appear to have hundreds more left in them). Unfortunately, this material is not only quite expensive, but also difficult to obtain.
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Pros And Cons Of Metal Roof

The expected life of a metal roof should last as long, if properly installed, as the house itself. Remember metal is resistant to deterioration, fire, insects, mildew and wind. Warranties on conventional roofs typically are 20-35 years. Warranties on metal roofs range from 20-50 plus years.The weight of the metal roof in many cases is less than a conventional shingle. Regular shingles weigh about 200 pounds for every 100 square feet. Most varieties of metal roofing weigh between 50 to 150 pounds per 100 square feet. Remember metal roofs come in aluminum, steel and copper. Due to this lighter weight, it is easier to install the metal roofing on an older house without adding additional structural support.Speed of installation is often a factor, especially in colder weather. Most metal roofs come in larger sections between 12 inch- to 36 inch-wide panels and can be put in place quickly by a trained and competent contractor.They have a greater fire resistance because they are metal and non-combustible. They often have a Class A fire rating. If the materials beneath are combustible, the fire rating could be less. Metal roofing is easier to install on gently pitched roofs without presenting a leak concern because they do not have the tabs that a conventional shingle has. It is more difficult for water to back up on the metal roofing.Metal roofs allow heat conduction, which reflects radiant heat from the sun and therefore minimizes the amount of heat entering the house. Depending on how it is installed, it can save you energy during warm weather because your A/C does not need to run as much. It also can help keep the house warmer in cold weather.Due to its smooth finish, metal roofing sheds snow and rain. Because of the basic design, the smooth finish and not allowing any absorption, water and snow roll off easily. The surface of a metal roof is hard and slippery.Metal roofs are more durable and resist wind speeds up to 140 miles per hour. Also, it will not deteriorate or crack as it ages.These metal roofs are more environmentally friendly. They can be easily recycled if and when necessary even at the end of their life expectancy.
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Pros And Cons Of Metal Roof

Hello Bob, As far as I can tell, a standing seam metal roof may indeed be a better option for you, and here is why; you mentioned that the area you live in is subject to some serious winds and hail storms that can easily damage an asphalt shingle roof. If you go with asphalt, there is a significant risk of some serious roof damage from wind and hail down the road. You may save some money today, but you may well have to replace your roof again, just a few years from now, at which point I am pretty sure you will go with metal. Why not do it off the get go!? – You could get security and piece of mind by installing a metal roof, which would be a much better defense against strong winds and hail storms compared to a 30 year shingle roof. Also, as you have mentioned, there your homeowner’s insurance premiums would decrease if you choose to go with a metal roof. Furthermore, consider some significant energy savings if you opt for an energy star rated metal roof, which could help you save some 20% to 30% on your cooling costs. I dare say that in Central Arizona, it can add up to a good chunk of change!
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Pros And Cons Of Metal Roof

I am currently looking to replace my damaged shingle roof w/ metal roofing of some kind and I am having trouble deciding which type of metal roof to go with. My home is a manufactured home (also known as a double-wide in some places) so I have a very simple roof w/ the exception of 1 dormer, 2 skylights, the furnace chimney, and several vents (I know that 3 of them are for bathroom/kitchen exhaust fans). The rest of the vents I assume are for roof ventilation (there are 6 all in a row along the ridge of the house). There is also venting in the soffits. I do not have an attic, I have vaulted ceilings. At this time, I have no tree cover in my yard & my home sits facing East/West so it is in the sun all day long & my home gets very hot as a result. I live in central WI. My questions: 1) My home is less valuable than a stick built home & metal roofing can be very expensive. Which type of metal roofing would you install? So that I wouldn’t “price myself out of the market” as realtors like to say 2) I have a question about ice/water shield. On one estimate, the contractor quoted for 3 ft of ice and water shield & another quoted for 6 ft. from my reading it sounds like 2 ft inside the wall space is to code. Which would you go with? Is more better in this case? Does it depend on the kind of metal roofing ? Please remember that my eaves are much smaller than a standard house. 3) Due to the sun/heat my roof will have to endure I am concerned with “oil canning” if I go with standing seam metal roofing. Is there something that can be done during the installation that can prevent it? 4) The last wind storm in my area had wind gusts of approx. 60 mph (which is how my roof became damaged in the first place). The prevailing winds usually come out of the West. Is there something that can be done on installation to help prevent wind damage in the future? 5) Can the venting be replaced with a ridge cap vent & still provide adequate ventilation? Sorry it’s so long but thank you in advance for any help
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Pros And Cons Of Metal Roof

Hi Cardel, The roofer you consulted is either purposely misleading you or does not know what he is talking about. While most asphalt shingle roofs get blown away in a hurricane, most properly-installed metal roofs remain on houses they were designed to protect. That’s why many architects prefer metal over shingles when specifying roofing systems for homes. Since most modern metal roofs are rated for hurricane-grade winds, you’ve got nothing to worry about with a properly installed metal roof. Energy efficiency and longevity are also important to consider even if the initial/upfront cost of a metal roof is higher than shingles. As far as your concern about wind uplift, most asphalt shingles roofing systems are only rated for up to 60 mph winds. Should you decide to save a bit of money upfront and go with shingles, look for a system that is rated for hurricane-grade winds. Look for a high-end architectural/dimensional (heavier and thicker grade) of asphalt shingles from companies such as GAF, Owens Corning, or Certainteed, but remember their warranties are pro-rated and pretty much meaningless. — The roofer should also use 8 nails per shingle to make it less prone to being blown away in the storm. With metal roofs, many systems are rated for 110 to 160 mph winds. I know stone-coated steel roofs from manufacturers like Gerard or Decra are popular in Florida, although I personally prefer the look of metal shingles or better yet standing seam (more costly). You can find a quality roofing contractor and estimate the cost of installing a metal roof on 150 Points. Their database of roofing pros is growing, and their roofing cost calculator is second to none. Hope this helps and Good Luck!

Pros And Cons Of Metal Roof

Pros And Cons Of Metal Roof
Pros And Cons Of Metal Roof