As one of the first manufacturers of impact resistant windows and doors in Miami, we are familiar with the glass used in Christine Leon's French doors (Action Line, May 9).
The Solutia and DuPont interlayer used in laminated glass have been used on the front windshields of automobiles since the 1940s and are still used today. Anyone who drives a car looks through laminated glass when driving. A milky appearance is not normal, especially after only a few months.
As the sun shines directly into the house, it can exaggerate the most minimal imperfections.
Another possibility, although rare, would be that the glass was dirty when it got laminated.
To test, homeowners should clean a 12'' x 12'' area from both sides; rub a cleaning towel horizontally on one side and vertically on the other. If you see streaks, then you know it's a cleaning problem that is exaggerated by the light. If nothing changes, then it might be a cleanliness issue within the laminated glass.
-- Flavio Quesada,
chairman and founder of CGI Windows & Doors,
Miami
