How 2020.... Be aware lol.
Article on it....
www.wral.com
Article on it....

Glare from energy-efficient windows can melt siding, vehicles
Energy-efficient windows make up more than 90 percent of all new window installations in the U.S., according to a survey by the National Association of Home Builders. But they can become problematic for homeowners when sunlight bounces off the windows and is so intense that it can melt siding on...
