Window Screens -- Metal or Non-Metal?

[Guest guest]

Hi all,

We're in the process of moving into our new house, and one of

the things we want to do is buy window screens, to keep insects

out while the windows are open. I see that I can buy screens

made out of metal (aluminum) or not (fiberglass/vinyl). Anyone

know which is better from an EMF/energy standpoint? Does the

metal screen attract outside EMF to the house, or act as a

shield, or does it make no difference to the health of the

people inside?

Thanks,

Marc