Metal Roofing


Metal Roofing Benefits

Metal surpasses conventional roofing materials in several ways:

Expected Life:

Properly installed, a metal roof should last as long as the house or building; sealing out water, surviving high winds, and easily shedding snow. Metal is resistant to fire, mildew, insects, and rot.

Speed & ease of roofing installation:

Most metal roofing materials come in multiple-shingle sections or in 12- to 36-inch-wide panels. An accomplished contractor can install these quickly and efficiently. If your roof is stripped off and being worked on, and a storm is on the way, shortening the process by a day or two may offer a critical advantage. Obviously, there is also considerable labor savings if you can ease and shorten the duration of roof installation.

Heat conduction:

Metal reflects radiant heat from the sun, minimizing midday heat gain. This means you save energy needed for air conditioning during the day. Though the material itself is low in insulation R-value, metal roofing can be applied over rigid-foam insulation that has very high R-values. In addition, many systems utilize a dead-air space between the metal and roof deck to increase energy efficiency.

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 surfaces are hard and slippery. In addition, dark tones of metal roofing quickly warm in the snow, encouraging snow melt.


Compared to the weight of tile at 750 pounds per square (an area equal to 100 square feet) or concrete tile at 900 pounds per square, metal roofing is very lightweight. Most varieties run from 50 to 150 pounds per square.

Because of the material’s light weight, you can save on engineering and building the supporting structure.

In fact, if you’re building a house or an addition, you can often downsize or reduce the number of roof support members.

Some types of metal roofing materials may be applied over an existing roof without the need for tear-off or additional structural support.

Fire resistance:

Because metal roof materials are noncombustible, they typically have a Class A fire rating (the most fire-resistant rating). Just be aware that part of a roof’s overall classification depends on materials beneath the surface that could ignite in intense heat, too. Most metal roofs applied over a combustible material such as wood shingles have a lower, Class C rating for this reason. See notes under “Metal Roofing Drawbacks” regarding problems in the event of a house fire.

Minimal roof pitch:

Most metal roofing materials can be installed on gently pitched roofs without leaking. Minimum roof pitch typically is 3-in-12 (the roof rises 3 inches for each horizontal foot).

Corrugated Roofing Panels

Exposed Fastener:
Corrugated roofing has been around for over 100 years, but the old style of short panel lengths and rusted edges are a thing of the past. Corrugated metal panels offer great protection, and are an upward trend in designs using metal roofing.

Standing Seam Metal Panels

Hidden Fasteners:
A very popular panel for roofing, the standing seam panels offer long sleek lines and are usually installed with hidden fasteners helping to add to their clean appearance. Standing seams can be run over open purlin systems and in long single runs making them very appealing in modern metal designs and residential or commercial applications.