[TRNSYS-users] how can I do an anti-glare shield foil on the outside of a window? (a little bit urgent)

[Alfred Haider]

Hello,

I have to simulate a foil on the outside of a window. The data for the 
foil is:

transmission: 13%
reflection: 62%
absorption: 25%
total energieshielding: 80%
Whats the best way to do it with std and tess types?
I thought I could set an ext. shadining device to 0,8 but is it right 
and realistic?
Hope someone can help me.

thx for your help.

bye,
    Alf