A proper deck repair and catching problems when damage occurs, it's a lot less expensive than replacing the whole deck. If your deck framing was built with pressure-treated lumber rated for ground contact, the wood will be very resistant to rot.
Your deck should be inspected to determine the extent of the damage on boards, posts, beams, and joists, as well, loose nails or boards should be checked and lumber with dry rot damage should be replaced.
Clear out the debris between deck boards looks bad and soaks up water, promoting rot. Dark stains may be due to mildew; cleaning with soap and pressure water and bleach will clear up the problem.
If the rot is less than 1/2 inch deep, the board can probably be left in place. More extensive rot calls for the replacement of boards. If nails or boards are popping up or coming loose they'll be removed and replaced with longer decking screws.
4. Deck Treatment: Seal and Stain
An application of stain and/or sealer will then be applied to preserve the natural beauty of the wood. Doing this type of work on a scheduled basis can also save you thousands in repair costs associated with wood replacement. We only use the best stains, sealers and methods when restoring your wood deck.