If I find just a sheet of glass from home depot that doesn't have any film on it or anything, do you think it will still filter out UV rays?

I am messing around with something I call the clone bucket right now. It is basically a 5 gallon bucket clone chamber with a 23w CFL light. It is good because it maintains humidity and it is warm. Also costs under $10 for lights and all.
Dr.Hashman Reviewed by Dr.Hashman on . Using glass as a ceiling I was wondering if I could use a rectangle piece of glass to limit the hight the plants can reach to avoid getting burned. I'm planning on putting it 2 inches below the bottom of my 30 watt CFLs. I want to do a SCRoG type method and have the wire a few inches below the glass so I can get maximum light efficiency but not burn. I was wondering if anyone had any advice on my idea. -Dr. Hashman Rating: 5