Many Thanks for the links and info Gents,
After reading one of your links Jim I have decided to change the windows altogether as I reckon they are well past the 3 year mark and I think the rubber on the front window is letting in water so I may as well kill 2 birds with the one stone by sealing the rubbers all round when I come to changing the windows,
If I cant find the bronzed polycarbonate in limerick I will be sure to look up that chap in cork,
Again I thank you all for your help on this,
Mike,
I really like the idea of the bronzed windows I think they will give me a warm feeling on a gray day