Sealing bottom-underside of deck?

Questions & AnswersCategory: Wood Deck QuestionsSealing bottom-underside of deck?
Ralph de Gouveia Pinto asked 6 years ago

I’m getting a deck built out of regular wood (not pressure treated) And the person building it says that there is no need to seal the under side of the deck. He says that the sealant will seep through the top and soak till the bottom.

I just wanted to know if there was any truth to this or should I insist that he treats the bottom as well.
Thanks in advance.

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