Large corporations and individual unions also have offices in the capital. Trade associations represent entire industries. The members of the American Public Power Association (APPA), for example, are municipally owned electric utilities, rural electric cooperatives, and state power authorities. Professionals also form interest groups.
well the UV rays can indeed go through your eyelids, but like the others i've closed my eyes and am fine....if you dont tan 365 days a year for 90 years i dont think you'll be in danger...also one thing to consider is if you wear contacts....most are now UV light protected which definitely helps to block out the rays.
In many cases 12 to15 degrees cooler. They have an additional benefit if mounted on the outside besides blocking extreme sunlight they also protect windows against seal failure if installed properly. Oh and of course they still block out bugs. There are several levels of sun block: 75%, 80% and 90%. The more sun you block the cooler a room stays.