Criterion 6.1.1.12 Effects of Decomposition Products

Criterion text:
Chemical decomposition products that are expelled from solar components under in-service conditions shall not cause the degradation of solar components or building elements to the extent that would significantly impair their ability to perform their intended function over their design life.

Comments:
This criterion is evaluated during SRCC system review.

Installers must follow the manufacturer's SRCC approved installation instructions and system design.

Installers must take special care when using various heat transfer solutions to ensure that when expelled, these solutions do not cause degradation of building elements. For example, pressure or temperature and pressure relief valves' routing must be such that the expelled solution does not adversely affect roof material. If, as shown in Figure 1, the heat transfer fluid could chemically damage the roof shingles, the outlet of the relief valve would have to be routed to a safe location.

Figure 1

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