The aquatic animals that fill the tanks at John G. Shedd
Aquarium in Chicago may have thought something fishy was going on
during the past year. Helicopters frequently flew around the
building at the crack of dawn, and a big deal was being made about
And with good reason. This was no ordinary roofing project. The
aquarium's new roof system was surfaced with a soybean-based
ELMS,® or Environmental Liquid Membrane System, which was
manufactured by Green Products LLC, Romeoville, Ill., and installed
by NRCA member Preservation Services Inc., Romeoville, Ill.
The amount of ELMS applied to the roof system was equivalent to
oil taken from 37 acres of soybeans.
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