Tempered Windows
Look Dirty
To the Editor:
Glass manufacturers are advertising
their ability to produce large
glass units with high insulation
properties. I would like to share my
unpleasant experience using this
product in a design situation where
the glass went down to the floor
and required tempering (see specs
below).
I had 8x8-foot and 8x12-foot
insulated glass units installed in a
new house. After the installation,
we cleaned the glass and found a
cloudy color checkerboard pattern
across all the glass. The supplier of
the glass says this occurs in the tempering
and is within industry
acceptable tolerances. It doesn't
sound right to me that the glass
industry is spending all this money
and the result is glass that looks like
"dirty" windows.
SPECS: