Material and mesh size for enclosure tops

[44937]

For DIYers out there, what material and mesh size are you using for the tops of the enclosures to maximize uvb transmission?
Are galvanized 1/2"x 1/2" square mesh safe?
I also see vinyl square mesh of same size but I'm concerned the vinyl will become brittle with the uvb bulb directly on top of it.
Suggestions?

 

[Carlton]

Galvanized wire mesh is better for the cage top. It will hold more weight (if you have to rest a fixture or a cross brace for hanging plant pots on it) and won't melt or burn from basking bulb heat. The mesh size is fine for UV transmission. I would take a wire brush to the mesh to wear off any sharp burrs that might cut a cham's footpad. Most chams spend a little time clinging to it in their daily travels.