Tag Archives: solar

Planning Solar-ready Roof: Advantages with standing seam metal assemblies


Last year, the California Energy Commission introduced new energy-efficient standards for all newly built residential and commercial structures. Essentially, ‘solar-ready roofs’ will be required on all new construction. While home and building owners are not required to install solar panels at the time of construction, their roofs must be prepared if they choose to install them in the future.

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Solar air-heating for senior housing retrofit

This photo shows the solar air-heating system cavity framing in the Lyndon B. Johnson (LBJ) Apartments in Cambridge, Massachusetts. Photos courtesy Cambridge Housing Authority (CHA)

An unglazed, transpired solar air-heating collection (TSAC) system has greatly improved the energy efficiency of a Cambridge, Massachusetts senior housing neighborhood. The Lyndon B. Johnson (LBJ) Apartments, a 180-unit development owned by the Cambridge Housing Authority (CHA), benefited from the technology, which integrated aesthetically, seamlessly, and cost-effectively within its architecture.

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Solar power: Focusing on quality and long-term reliability

When specifying photovoltaic (PV) assemblies, it is important to know the modules and cells themselves offer long-term quality. The photo above shows ‘snail trail’ formation resistance of different cell/ethylene vinyl acetate (EVA)/backsheet combinations. All images courtesy Motech Industries

by Sam Tsou

For construction specifiers making client recommendations when moving to a renewable energy system, photovoltaic (PV) solar power can be a daunting challenge. This is especially the case when one only considers the impressions of earlier years that do not reflect today’s economic picture. Current U.S. government statistics aggressively support the reality commercial and residential installations are proving to be a valuable approach—with a return on investment (ROI) that means the client payoff is becoming shorter and shorter.

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Considerations for Photovoltaic Roofing Systems

Non-penetrating photovoltaic (PV) sheet metal components before assembly. 
Photos courtesy Viridian Systems

by Ron Utzler

As the push toward renewable energy continues, roofing suppliers have been receiving an increased number of inquiries from photovoltaic (PV) providers regarding installation of these systems on warranted roof systems. Many of the PV suppliers operate on the assumption membrane manufacturers prefer use of ‘non-penetrating’ ballasted PV systems. However, this is not always the case.

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