Norminn wrote:
Nancy Young wrote:

Oh. The fact that I don't know what backer rod is, but I saw what
looked like that at the store makes me think I don't know what the
heck I'm doing. I'd better read more about it. Thank you for
the heads up.

Backer rod is stiff foam molded into a cylindtrical shape, or rope,
available in different sizes. It is used for filling larger gaps
prior to caulking. The backer rod fills the gap, and caulk covers the
backer rod and seals up the gap.

Makes sense.

The backer rod
is to insulate and fill so you don't have to fill up voids with caulk.
Caulk is great for finishing off all kinds of cracks
and openings, but might never completely cure if packed in volume to a
large opening.

Capish. I think I need to use that in my bathroom where the
vanity top meets the wall. Live and learn.

nancy