You can take a vismat glassmaterial from chaos group. First you have to download some materials :
http://www.vray.com/free_vray_tools/vismat_material_collection/

Load it in the material editor and apply material to selection.
Play with the reflection (set:1) and reflecion glossiness (0,85). This will work.

Succes

Hey,

I'm practicing with Vray and I have a question?
After rendering (see picture) you can see that the wood texture became very blurry?
Is there someone who can give me some advise?
After rendering the wooden floor must stay sharp.

Tnx a lot!