Solar Air Heating Systems

Backpass Solar Air Heating Materials and Finishes

MatrixAir Backpass solar air heating collector

Our absorber is constructed of conventional metal wall cladding. The coating on the cladding is a baked-on finish, which is selected for its solar absorption properties and resistance to ultraviolet radiation. Charcoal and dark brown are the standard optimal colours and other dark colors are also available. Our standard systems are constructed from 22 ga galvanized steel providing substantial strength and rigidity. It should be noted that some “oil canning” may result where very high collectors are used. This is normal and should be expected. This effect may be minimized using the strengthening rib indicated by the “R” suffix to the profile number. We at Matrix consider this uniform look appealing and characteristic of our MatrixAir™ BP solar air heating system. We hope you will too!

AD300R, cladding, metal, panel, backpass, material

MatrixAir™ BP-38305-R

Choice of Colour

The chart below will guide you in the selection of the best colour for your application. Dark colours, in particular black, yield the best energy output for all applications.

 MatrixAir Backpass Colours

For our purposes, absorptivity is a measure of a walls ability to retain solar energy. Colours with high absorptivity and low emissivity such as those incorporated within MatrixAir™ offer the best overall performance and colour longevity. A wall colours’ absorptivity will contribute significantly to the energy that may be produced by the MatrixAir™ solar air heating system. For example, our black absorber with a 94% absorptivity would capture about 10% more solar energy than a medium blue coloured wall surface of the same size.

 

 

 

 

 

 

 

 

 

 

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