Fix wood to UPVC?

[kipper1066]

Hi,
I have a dormer window extension covered in white UPVC - similar to the one shown in the first image. I want to clad this exterior with wood - similar to that shown in the second image.
My question is: How should I fix the wood into place? For example, can I simply screw the wood to the UPVC, or would this not be robust enough?
Any suggestions greatly appreciated.
Many thanks

 

[23vc]

Take off the upvc, fix wood cladding to the underlying studs?

 

[^woody^]

It's not like just putting a clean pair of pants on.

What about the roof overhang, the corner post, the ventilation of the cavity, the batten spacing?

 

[catlad]

Depending how old it is you will probably need to add insulation also, so its best to strip it back and see what improvements can be made.

 

[Leofric]

As all the others say above, see what existing construction is underneath the pvc cladding then put together a specification for upgrading the construction as necessary to include the new timber cladding.

 

[big-all]

remember wood cladding will need several coats initially and recoating every 2-5 years to maintain colour unless you are happy for it to grey after a year or so

 

[megger]

Do you have a Eurocell branch close by. They supply all you will need in like for like materials. But also their latest catalogue has a greater choice of wood pattern finishes to choose from. Might be worth considering.