On Dec 1, 4:25*pm, DerbyDad03 wrote:
On Dec 1, 4:12*pm, (Graven Water) wrote:





Jim Yanik wrote:
mounting aluminum directly on a concrete block wall may not be such a good
idea;chemicals in the concrete may react with the aluminum,causing
corrosion far greater than any from SS deck screws.

I think this applies more to aluminum that's embedded into concrete,
not channels screwed onto it. *Only the legs of the channels would
be in contact with concrete block. *I'm going to paint the
concrete block wall with a sealer, so the aluminum wouldn't be in
direct contact with concrete. *It's below ground level, so liable
to dampness.

Or maybe I could use galvanized steel channels? *I'm not sure if those
are available in the right size.

To attach drywall to the channels, I need to use screws with a flat
head, like deck screws or drywall screws. *The metal screws I saw
didn't have flat heads.

Laura

Why, oh why won't you respond to the numerous inquires as to why you
don't want to use wood?

At least 3 different peple have asked, you've responded to other parts
of their posts (including mine) but you never address the "Why not
wood?" question.

Why is that?- Hide quoted text -

- Show quoted text -

The other thing to consider is how many basements with
cement block walls are finished everyday with drywall without having
to come up with novel mounting methods.
I'd do some googling on the subject and I think the results
will be that wood is typically used without problems.

An alternate way of looking at it is if it's so wet that wood
can't be used, then I think he's got bigger problems than
the fastening method.