Because of their considerable length, these skylights at St.
Louis' Lambert Field International airport have been divided into sections by structural
expansion joints.
These joints need to be made watertight. The sealant material
must handle the tight radii, variation in the joint-gap size and must anchor without
drilling into the substrates.
The material must also thermally insulate, must look
good, and, must do all of this while moving through seasonal temperature cycles.
SEISMIC
COLORSEAL by EMSEAL uniquely handles all of the challenges posed by this application.
Tight radii are handled in by the flexibility of the material.
Selection of Gray from the
standard
25 -COLORS makes the seal appear an integral part of
the skylight system.
Curved expansion joints are more common than one might think and are
routinely handled by EMSEAL.
Radii through the vertical plane are also readily
addressed by
SEISMIC COLORSEAL.
In addition the variation in joint size at the downward curve is
uniquely handled by switching sizes to suit field conditions.
From the inside, the
charcoal gray impregnated foam backing is also aesthetically pleasing as
it once again appears a part of the window system. In
addition the product has an
R-value of 2.15/inch of depth giving this
application an R-rating of almost 7 at the joints.
SEISMIC
COLORSEAL is one of the hugely versatile COLORSEAL
family of cutting edge composite sealing technologies available from EMSEAL
