The message
from chris French contains these words:

However I would like to replace the galvanised W clips and S clips with new
SS ones and I have already located a source of supply for these,
however, the existing rubber seals which fitted between the glass and the
alu frame are perished and I would like to replace them.

I would like to replace them with an U section flex material which could be
slotted over the glass edges and mitred with a sharp knife on the corners
prior to fitting the glass in the frame, I believe this is a better way of
cushioning the glass against slight wind movement and would also spread the
point load to which the glass edges are subjected to by the W clips.

Not convinced this is at all necessary, but if you do want it someone
over on uk.d-i-y may know of something

Scrub everything clean, let it dry, and use exterior quality silicone sealant.

--
Rusty
horrid dot squeak snailything zetnet point co full-stop uk
http://www.users.zetnet.co.uk/hi-fi/