while standing on the ground or on a ladder next to the deck, use a claw hammer or pry bar to remove rotten wood deck boards. be sure to use safety glasses. pry off as many of the intact sections as possible.
remove rotten wood. set the depth of your circular saw to thickness of the roof decking. cut away the damaged area. pry out nails with a claw hammer or pry bar and remove the cut piece. expose at least two trusses so that you can nail the replacement wood to them. if possible, keep the cut-out section in one piece.
clean the damaged area with a stiff brush to remove any loose paint or rotted wood. follow up with medium-grit sandpaper to shave off any remaining splinters. apply a deck cleaner to the area if
when it is caught early, it may be possible to repair the damage without having to replace your whole deck. remove any rotted boards and replace them with new, pressure-treated ones. apply a water-resistant coating over the entire deck, including the support pieces. even out any spots that create water pooling. contact apco for wood deck rot repair
remove the existing nails from the old decking board. you can use a cats paw and hammer to remove the nails. if your nails are hidden, or hard to access, then a multi-tool with a metal cutting blade can be used to cut through the nails between the decking board and the joist. remove the off-cut using a hammer or prybar.
cut away the rotted ledger board using a reciprocating saw. stop just inside of framing floor joist. for example, if the rot along the ledger board is 8 inches long, then remove a 16-inch section that extends to a solid framing floor joist. be careful not to cut into the sill plate beneath the ledger board when removing the ledger board.
repair rotting deck joists. a: the easiest way is to repair a joist is to install a sister joist to strengthen the damaged area. use a hammer and chisel to chip away the damaged wood. liberally apply two coats of waterproof sealer over the damaged joist. cut a reinforcing sister joist from lumber that is the same dimension as the damaged joist.
some suggestions on how to remove screw-fitted decking boards without trashing them. decking board and screw removal clive sutton how-to easily remove rotting deck boards that are nailed
pressure treated lumber step 1: removing nails and screws. step 2: inspect joists and remove rotted portions. step 3: apply sealer. step 4: reinforce the joist. step 5: secure reinforcing joist. step 6: prepare replacement deck board. step 7: apply wood stain. step 8: attach new decking.
remove rotted board. some places cut the board for you for a nominal charge. if you do the cutting yourself, use a strhtedge to mark the cuts, and double-check your markings. set the decking board on two sawhorses and use a circular saw to make your cuts. remeasure the newly-cut board to make sure it's right.
one of the three main deck support posts supporting my deck is rotting just above the ground. the other 2 may be starting to rot just below the ground. the house is about ten years old, but we've had a kiddie pool on the deck and i think the splash water from that may have contributed to early rot of pressure treated wood 6x6 .
as noted with repair, only attempt replacement of rotted wood if you have sufficient experience. the work will involve: removing all rotted wood and an additional three feet of surrounding wood to ensure no fungus remains. removing all plaster, skirtings, paneling, linings, and ceilings to ensure no fungus remains.
the ends of the old deck boards were nailed to the ledger board, leaving holes in the flashing which will allow water to seep in and rot the ledger board. often the ends would work loose and make a crinkling noise when stepped on, bending the flashing.
the cut-out section must span at least two joist spaces, for long-term stability. identify the two joists where you will make the cuts to remove the bad section of deck board. use the speed square to mark the bad deck board along the inside face of each joist. continue to 3 of 7 below.
the small amount of wood taken out will not matter, but lean the blade toward the wood being discarded. if you can't access the bottom of the deck, you can remove a section of the board to be discarded close to the screw and then cut the screw horizontally. the stub of the old screw in the framing board will be covered by the new boards.
adjust the circular saw blade depth to cut almost all the way through the deck boards to avoid sawing into the deck joists. i unplugged the circular saw, held an old deck board against the bottom and adjusted the blade. i rip sawed the old boards by following- and staying to the left side of the nail heads.
eliminating collection zones. running the deck boards parallel to the house and overhanging the fascia right will reduce the collection zones to a cumulative 121/2 inches 1/4 inch per gap x 50 gaps . while some water and debris will get in, the greatly reduced amount will be much less likely to cause rot.
deck rot repair. if you discover areas of dry rot on your deck, those portions must be removed and replaced immediately to prevent it from spreading further. its important when replacing rotten deck boards to be thorough in your inspection of the compromised areas. be sure to inspect all areas directly adjacent to the rotten wood, as even early signs of decay will eventually contaminate your recent repairs.
the simple answer is any wood that regularly gets wet and cant dry out will rot. wood joists stay wet when a deck drainage system is installed below the joists. under-deck drainage systems that are mounted below the joists cause damage in three ways: first, they allow the wood to get wet over and over again as rain drips through the deck boards, over the joists and into the drainage system below.
6. remove old boards with nail puller, hammer and pry bar 7. sweep off joists 8. measure empty spaces 9. cut new deck boards with circular saw and speed square 10. install replacement deck boards
deck board removal: pulling and popping if you can't get under your deck, you can use a cat-paw nail puller. pull the nails in the rotted area and see if lifting up on the board won't pop the rest of the nails loose from the joist on down the length of the board.
this is tricky, because weathered deck boards look alike. remove a board, cut it with a circular saw, and smell the wood to identify the species. pressure-treated pine has a sweet smell, cedar an aromatic smell, and redwood a more pungent smell. ask your lumberyard to cut a scrap from each species and match the smell to your own board. since youll be cutting random-length replacement boards, buy the longest boards you can transport; theyll yield less waste.