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CLEVELAND - In neighborhoods across America, there's a strange phenomenon happening that's melting paint, siding, pool covers, and car parts. It's a problem that even caught the attention of the Department of Energy.
The vinyl siding on Lynne Loudon's home survived 20 years of hail, rain, wind and sun. So, she couldn't figure out why it suddenly started melting.
"I thought maybe it was lightning or because I bought a new microwave," Loudon said.
Over time, the melt zone got longer and wider leaving Loudon to think her house was shifting. Something else was shifting up above in the sky. "Came out one day and noticed like a spot of light, like yellow light and it was coming from the window," Loudon said.
Loudon wasn't seeing things. A neighbor saw it too. "It was just a bright circle with an X in it," Kathy Stec said. Loudon and her neighbor agreed that the bullseye of sunlight appeared to be reflecting off the new, double-hung windows added next door. They're energy efficient with a low e-glass coating. This means they reflect sunlight in the summer and keep the heat inside during the winter.
Read more: www.wcpo.com...
edit on 28-9-2011 by JibbyJedi because: (no reason given)
The National Association of Home Builders says the curvature of the glass in the double hung windows can create a magnifying glass effect that focuses a light beam at other surfaces that can reach 200 degrees. Read more: www.wcpo.com...
Originally posted by SalientSkivvy
reply to post by JibbyJedi
WTF? So the "X" light isn't from the sun? And they don't know where it is coming from?
Strange... very strange..
Originally posted by Gradius Maximus
I stood infront of a polished silver plate that was perpendicular to the suns rays, within moments it felt like I was cooking. No doubt in my mind that this is happening all over with other reflective objects.
Originally posted by onthelookout
Yes, the article points to specific windows as concentrating the sun glare and causing the melting, but what is NOT clear is whether the windows are new OR if they've been around and they have just recently started causing this problem. As in the sun's glare has become more fierce.
Loudon and her neighbor agreed that the bullseye of sunlight appeared to be reflecting off the new, double-hung windows added next door.
After the neighbor reported this problem, some windows were replaced and the neighbors say that concentrated beam of sunlight disappeared.
Most of us have heard about "low-e glass." After all, low-e technology has been used on windows since the mid-1970s, and every major window and door manufacturer offers low-e glass on their products.
Industry stakeholders are working on their own study, and the Department of Energy released a scientific report on the issue. The report said, "Environmental conditions play a primary role in heat transfer at the siding surface."
The DOE report said there have even been reports of damaged garbage cans.