Are you considering tu buy a new metal roofing for your home or business, it’s very important to check the cons and pros of metal roofing against other more common roof materials, as wood, asphalt and tile. Here we will give you a close look at some of the drawbacks and benefits of aluminum, steel and other
should last as long as the house, sealing out water, surviving high winds, and easily shedding snow. Metal is resistant to fire, mildew, insects, and rot. Warranties vary widely, but most companies back their products for 20 to 50 years. Paint finishes typically have a 30-year limited warranty. Weight. Compared with tile at 750 pounds per square (an area equal to 100 square feet) or concrete tile at 900 pounds per square, metal roofing is lightweight. Most varieties run from 50 to 150 pounds per square.
sheet metal roofing
is lightweight, fire resistant,very quick to install, and great at shedding water and snow. Some types of metal roofing materials may be applied over an existing roof without the need for tear off or additional structural support. In fact, if you’re building your house or an addition, you can often downsize the number of roof support . Speed & ease of the roofing
Because metal roof materials are non-combustible, they typically have a Class A fire rating . But part of a roof’s overall classification depends on materials beneath the surface that could ignite in intense heat. Most metal roofs applied over a combustible material such as wood shingles have a lower, Class C rating.
Metal roofs reflects radiant heat from the sun, minimizing midday heat . That means that you save energy needed for air conditioning . Though the material itself is low in insulation R value, many systems utilize a dead air space in between metal and roof deck to increase the energy efficiency. Minimal roof pitch.
Biggest drawback is initial cost.
Metal roofing is equivalent in cost to other premium materials—from about $160 to $500 per square – 100 square feet-. Because the material’s long term durability, the trick is that you ultimately save the difference if you stay in the house for a long time and, of course, you save on seasonal maintenance. Of course, if you plan to move in a couple of years, you probably won’t get the return on your investment.
Maximum shedding of rain and snow.
Metal roofing is practically impervious to rain and snow just because of the way the panels interlock and because the surfaces are hard and slippery. Metal Roofing Drawbacks Though metal roofing offers many pluses, a few drawbacks are worthy of mention. For the most part, metal roofing manufacturers have improved their products to address and solve many of these concerns.
For some, the sound of rain tapping on the roof is romantic and homey; for others, it’s like living inside a drum. In a rainstorm or hailstorm, living beneath thin sheets of metal is bound to be noisier than living beneath thick slate or tile. Noise can be controlled both by using materials that have structural barriers to minimize the drumming effect and by applying them over sound-deadening insulation and solid plywood sheathing.
A metal roof can dent some times if a very large hailstones fall on it. copper and alumininm, are much softer than the steel, are more prone to dent. Some types are guaranteed that do not dent, however. Though you shouldn’t have to walk on a roof that doesn’t leak, there may be some occasions when the a plumber needs to snake out a vent pipe or a chimney sweep needs access to the flue. You can walk on some metal roofs but not all; it depends on how the particular product is made and the type of construction supporting it.
Most metal roofing materials come in multiple-shingle sections or in 12- to 36-inch-wide panels. An accomplished contractor can install these quickly. If your roof is stripped off and a storm is on the way, shortening the process by a day or two may have a critical advantage. Because of the material’s light weight, you can save on engineering and building the supporting structure.
As you imagine, metal material can be very slippery when is wet. Some painted metal roof finishes can peel, chip, fade, scratch, or chalk, although nearly all are guaranteed for 50 years. Walking on some types, particularly those with a granulated-stone surface, may cause wear. Installers must be careful not to scratch or dent the roofing during installation, and panels must be treated with care.