garden cabin

I have a wooden cabin / garden room which is getting fairly old and I am thinking about extending its life by rendering the outside of it, insulating it and changing the wooden doors and windows to UPVC. Has anyone done this or does anyone have any advice?

Hi, I have a wooden cabin in my garden which I want to weather protect and paint. Somebody once told me that Sikkens was a good product to paint into the wood as a protective coating before painting. I have looked at the Sikkens website and find their product range and information...