We have pressure treated wood stairs leading up to our front door from
the street level. At some point someone decided to paint that
material, and EVERY year, I have to repaint, because the paint doesn't
seem to really "stick" well to the pressure treated wood material. It
peels off in ugly patches. Not how I want my front entryway to appear
of course! One thought I had is to replace the most visible pieces,
(stair treads and rails) with new composite planks. However, I am not
sure it is possible or advisable to mix and match these materials?

Thanks for any suggestions!

-Chuck