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What is photovoltaics?


     Photovoltaic (PV) Solar Panels are designed to produce electricity from exposure to the sun's radiant energy. This electricity is considered "free" electricity since no fuels are used to produce it. The process is fairly simple. Silicon wafer semiconductors are exposed to the radiant energy of the sun and produce a small electrical current. To make enough power to be of significance, groups of these semiconductors are connected together in a panel. These panels are arranged in arrays so that the wattage produced is then transferred to a power inverter that converts the direct current produced by the panels into more usable alternating current to run equipment and other devices.








Convert your roof into a profit center


     There are many benefits to be gained from the installation of a photovoltaic system on your facility's roof. Over the past few years, companies are demonstrating an increased concern for the environment, heightened energy-efficiency awareness and more stringent fiscal management. This perspective is driving many organizations to seek alternative ways to be both environmentally and fiscally responsible. Advances in solar technologies have also evolved rapidly during this time. The addition of State, Federal as well as Utility company rebates and incentives have made the adoption of solar photovoltaic systems more desirable and affordable.




Ask CWS for your Solar options!




Several current rebates in the US


  • 30% Federal Cash Grant or Investment Tax Credit.

  • Local and State rebates (available in certain markets and can be as much as 50% of the system cost.)

  • MACRS tax deduction (Modified Accelerated Cost Recovery System) which is the process of deducting 85% of the cost of the photovoltaic system over a 5 year period.

  •  REC's/SREC's/AEC (Renewal Energy Certificates/Solar Renewable Energy Certificates/Alternative Energy Certificates) which is the process of receiving certificates for creating your own power rather than drawing from the utility company.

  • Federal Tax Incentive: 30% Investment Tax Credit on installed system cost. Other regional power companies may offer rebates for photovoltaic systems as well.

  • For specific state incentives:

  • In the correct conditions, your company could realize a photovoltaic system return on investment in as little as one year with an average return within 4-6 years. CentiMark can work with your organization to help you determine if a photovoltaic system is the route to pursue. It's easy to find out. Simply contact us for a free Photovoltaic Feasibility Study.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems.


CWS green roofs serve several purposes for a building, such as absorbing rainwater, providing insulation, creating a habitat for wildlife, increasing benevolence and decreasing stress of the people around the roof by providing a more aesthetically pleasing landscape, and helping to lower urban air temperatures and mitigate the heat island effect. They effectively utilize the natural functions of plants to filter water and treat air in urban and suburban landscapes. 


Canadian Waterproofing Systems offers two types of green roof: intensive roofs, which are thicker, with a minimum depth of 12.8 cm (5.0 in), and can support a wider variety of plants but are heavier and require more maintenance, and extensive roofs, which are shallow, ranging in depth from 2 cm (0.79 in) to 12.7 cm (5.0 in), lighter than intensive green roofs, and require minimal maintenance. 


The term green roof may also be used to indicate roofs that use some form of green technology, such as a cool roof, a roof with solar thermal collectors or photovoltaic panels. Green roofs are also referred to as eco-roofs, oikosteges, vegetated roofs, living roofs, greenroofs and VCPH (Horizontal Vegetated Complex Partitions).






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