Solar panels are a practical, efficient resource for near immediate production of "free" energy that reduces the dependence upon standard peak demand utilities. Unobtrusive and easily integrated into the architectural design of a building, they are available in a variety of technologies including modules of thin film, mono and multicrystalline cells, amorphous silicon, CIGS, encapsulated in plastic and glass frames, laminates, and solar concentrators. By harnessing the sun's renewable energy they are a non-polluting energy alternative to coal and oil. Solar panels also have a proven service life in excess of 30 years, outlasting nonrenewable energy sources.
The metal roofing industry offers warranties that meet or beat the warranties of the solar energy module manufacturers. Although the solar energy module manufacturers have warranties of 25 years, the service life is closer to 35 years. Metal roofing has a service life of 40+ years.
Why install solar on a roofing membrane with a service life of 15-20 years? The solar energy system at some point will have to be disconnected, removed; the roof replaced, then solar rebuilt and reconnected- adding a hefty price to the system owner down the road. Installing solar on a non metal roof involves either penetration or adding weight for a self- ballasted system. Both increase the possibility of roofing failures and can be expensive. Solar energy can be installed on metal with simple attachment solutions that do not penetrate the roof or add ballast, reducing the labor and cost of the system. Since the service life of the metal outlasts the service life of the solar energy system, installations can occur on metal roofs 8-10 years old.
Crystalline silicon modules (poly, mono or multi) are typically glass panels with a 13-18% efficiency rating that are a wonderful fit for metal roofs. Crystalline silicon modules (cSi) can maximize the energy output on a metal roof as the mounting hardware allows for these type of panels to cover more square feet of roof space. System owners typically like the fact that crystalline modules can be a mobile asset during roofing maintenance or upgrades. Crystalline modules have been manufactured in some form or another for over 50 years. Many of the crystalline manufacturers are large international companies with great financial stability and can truly stand behind a 25 year warranty.
Thin film technologies such as amorphous silicon (aSi), CIGS (copper, indium, galium, (di)selenide) and cadmium telluride (CdTe) typically have efficiencies of 5 - 10% that produce energy in low light conditions.
These modules can come in a flexible form and can be applied to curved metal panels. Thin film modules can weigh as light as 0 .7/lbs per square foot installed and can be a great solution when building structures that cannot handle additional weight.
Not yet a member? Sign up here
As the #1 educational resource for the residential metal roofing industry, the Metal Roofing Alliance helps match metal roofing contractors with interested home owners in your area. We help consumers decide if a metal roof is right for their home, and when they're ready, provide them with a list of contractors near their home.
After learning about all that metal roofing has to offer through MetalRoofing.com, many homeowners are interested in installing a metal roof themselves. We make this home improvement project possible by directly connecting these homeowners to you, their local distributor.
The goal of the MRA is to promote residential metal roofing by educating consumers on the many benefits of metal roofing. As a member manufacturer, you'll help promote the use of residential metal roofing to interested consumers, and gain access to consumer leads. For more information, contact Bill Hippard, Executive Director, at firstname.lastname@example.org.Member LOGIN