Doug wrote:

What grade of Behr paint did you buy and how/where was it used?

Which is the key question. All paint companies have different grades of paint
ranging from colored water to one coat, 30 year coverage.

The big box stores (and Wal Mart) feature the cheaper grades, but you can find
the better stuff if you look.

--
"Tell me what I should do, Annie."
"Stay. Here. Forever." - Life On Mars