Pros and Cons
The pros and cons of a metal roof consider the life span of any building product and will depend on the aggressiveness of the local environment. Studies show that you can expect a steel roof to last at up to 2 to 3 times longer than a regular asphalt shingle roof.
How Long Will A Steel Roof Last?
In general terms, count on a steel roof lasting 40 to 60 years and beyond, where the average life span of an asphalt roof would be 12 to 20 years. Asphalt begins to deteriorate as soon as you expose it to normal weather. Asphalt shingles are also subject to biological attack from mold and other destructive organisms. A steel roof, on the other hand, is inorganic and will never decompose. A steel roof will last even longer with minimal maintenance (e.g. periodic washing).
Below a list of pros and cons of metal roofing:
How Well Do Steel Roofs Stand Up To Severe Weather?
Steel roofs are designed to meet or exceed the strict wind and water penetration standards set out by the local building codes. Extensive testing is done to ensure they comply with these requirements.In addition, steel roofs have some special characteristics that make them exceptionally resistant to severe weather. It will not chip or crack like slate or tile from hail or ice. Lightning is no more of a concern for a steel-roofed house than for a house with any other type of roof.
How Will A Steel Roof Stand Up To Wildfires?
Steel is a non-combustible material and will not spread fire. Consequently, it will resist the heat from windblown sparks that are commonly associated with wildfires, keeping your home safer.
Is A Steel Roof Noisy When It Rains?
Steel roofing not only provides strength, but also when coupled with high build finishes, absorbs and deadens much of the noise. With the home insulation standards of today, you should not notice any difference in noise levels between roofing materials.
Will Metal Roofing Heat Up The Attic?
The characteristics of metal are such that it absorbs and dissipates heat quickly. As with any material, color is one of the governing factors related to reflectivity and absorption. Metal roofing on your home should not affect your energy requirements, and could in fact reduce it.
Can A Steel Roof Help Prevent Snow Build-Up and Ice Dams?
One of the great features of a steel roof is its ability to shed snow and prevent ice dams from forming. Ice dams are notorious for causing ceiling leaks and can result in thousands of dollars worth of damage.
What about installing accessories like satellite dishes?
Methods of installing accessories like satellite dishes on steel roofs have been developed, and are easily followed. Your contractor or local building supply store should be able to give you specific instructions.
Will A Steel Roof Affect Reception Inside My House?
No. Steel roofs have no notable effect on reception.