Bricks, Masonry, Asphalt and Concrete - Cement board

I posted this on "Decks, Patios and Porches" with no answers probably should have posted here first, I hope somebody will have an opinion for me. I have 2 wood porches one treated and one fir, both painted ( I really goofed) with latex primer and deck paint. Now they are peeling again and I want to try installing an exterior slate or tile over cement board in hopes that it will be a permenant fix. I live in the midwest and wonder how the freeze thaw cycle would affect it.

Any suggestions, ideas, etc would be appreciated. Thanks Don
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Donald LaCombe

Here is an article on applying tile over cement backer board over plywood on a deck.

http://www.hgtv.com/hgtv/rm_deck_patio_wood/article/0,1797,HGTV_3681_1377876,00.html

Hope this helps.