A professional from Denver, CO says:
February 28, 2014
I was told this is an Alenco Glazing bead. Can you help to identify.
Paul from SWISCO responded:
March 3, 2014
Thank you for posting. I recommend you look at our 55-008 and see if that's a match. If you don't agree, please remove a small, undamaged sample of your glazing and upload a few pictures of its profile. That way we can see the shape, which will help us find a better replacement.