Adam wrote:
Hi All,

On the last part of "preparing the ground" from this page:
http://tinyurl.com/homebase-decking
...it says "Place squares of bitumen DPC membrane over the top of the
concrete...".

I forgot to actually look up what this was (I now know "DPC" is damp-
proof-course) so was then wondering round B&Q looking for something
which looked plausible containing bitumen, and ended up with a roll of
bitumen shed felt. Is this a reasonable alternative? I notice on the
B&Q website the roof felt comes under the "damp proof" category.

Thanks a lot,
Adam

Personally, I wouldn't use anything underneath timbers in a situation like
this - it merely holds any water in place, right where you don't want it -
on the end grain...far better to make a gap somehow between end grain and
concrete, so that air can pass underneath - how this is acheivable is
another matter, probably involving metal bolts or suchlike

--
Phil L
RSRL Tipster Of The Year 2008