Understanding Solar Reflection and Heat Distortion
Damage to materials and products caused by the concentrated reflection
of sunlight from a neighboring surface is infrequent and occurs only with an
unusual combination of conditions. The Vinyl Siding Institute (VSI) has outlined
the currently available information related to this phenomenon and its effect on
vinyl siding in particular.
The National Association of Home Builders (NAHB) Building
Products Issues Committee has conducted a review of the issue. They formed a
task group to collect and evaluate available information on the issue and in
February 2010 released a report of their findings. NAHB Report: The Effect of Reflected Sunlight from Low-e and
other Double Paned Window Glass on Vinyl Siding. The NAHB report helps
to provide a clear understanding of this issue from a third party and outlines
how siding distortion from reflected sunlight might be remedied, or even
avoided, in the future.
