Proper Paint for a Particular Primer

Should be no problem. Personally, I like Zinsser 1-2-3 as an all purpose primer.

If originally painted over or if moisture can penetrate from behind, nothing will work for very long.

Specifically exterior house painting: I'm confused and/or my knowing/ assuming is defected. I have generally thought any paint can be applied over any primer.

I used Zinsser Cover Stain oil base primer, then applied Sears Weatherbeater (Latex, waterbased) as a top coat. I am having some peeling of the top coat.... applied within the past 5 years or so. Are these 2 coverages, Latex water based topcoat over an oil based primer, noncompatible, and that's why I'm having this peeling? If so, ....

What topcoating should I be using over the Zinsser oil based Cover Stain primer, for exterior house painting?

Sonny

The primer needs to be "whole house primer" and not spot primer. If you used the spot primer before, it contracts and expands at a different rate than the top coat paint. When that happens, you end up with flaking paint.

Also, moisture getting behind the wood will also cause flaking.

BobS

What is his course of action now if he has these incompatible layers already on the house?

So will inferior paint.

A LOT of sanding??? or scraping.. Or both.