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The structure of a wood deck or porch is subject to moisture and rot conditions because of its exposure to the elements. Water absorbed by the wood structure increases the material��s moisture content, causing rot and decay, compromising the material��s strength. Among the indications of wood rot are cracked or sagging floorboards; peeling paint (which provides a moisture barrier); and discolored or soft areas of the wood that should be cut and removed to halt rot spread.discount groove match decking Such moisture and rot problems can easily spread to the structure of the house itself where it comes into contact with decks and porches, if remedial action is not taken. The best prevention for rot in wood is to use treated wood and to seal it periodically. the structure and replacing them. Another option is to remove the rotted material and fill with an epoxy. If the deckboards are damaged from weathering, you can sand the surface to make it smooth. Countersink the deck nails or screws below the surface with a nail set. Using a belt sander, sand in the direction of the grain and keep the sander moving to avoid gouges in the deck boards.
TECHNIQUES, MATERIALS, TOOLS 1. REPAIR MOISTURE-DAMAGED POSTS OR COLUMNS. The most efficient and effective correction to rotting wood posts and columns is to remove the damaged material and replace it with new material. If you are removing deck posts or columns, support the deck with a jack post, house jack, or crossed timbers under the rim joist. Place a board between the ground and the jack as well as between the jack and the rim joist to prevent damaging the joist. <a href="http://www.outsidewpcdeck.com/projects/8949.html">germany anti-fungus wpc decking</a>To support the roof for removing porch posts or columns, use ground-to-eave bracing of doubled 2x4s or 2x6s. Nail a cleated top plate to the roof framing and nail bracing to top plate in front of cleat. tom plate and nail the bracing behind the cleat. Stakes behind the bottom plate prevent the bracing from sliding, keeping bracing as vertical as possible. Cut a lap joint at least 18�� long in the existing post, above the damaged area.
To make the crosscut, set a circular saw to exactly half the depth of the post. Then rip from both sides down the center. Use a chisel to clean up the portion of the joint where the circular saw blade does not reach. Install three staggered bolts through the posts to hold them together, with the top bolt 3�� from the old post and the bolts spaced 6�� apart. Make sure that the new member has a preservative treatment retention greater than the other deck members not coming into contact with the ground. ADVANTAGES: Saves material and time by replacing only part of a post. DISADVANTAGES: Conditions that cause rot should be corrected before repair work is done. 2.1 6 WOOD DECKS/ PORCHES AND FENCES 2 Rehabilitating the structure of a wood deck or porch may require removing the rotted portions of Nail a cleat to the bot- 2. REPAIR MOISTURE-DAMAGED JOISTS. If only the top of a joist needs repair, leave the joist in place. Apply a thick coat of sealer-preservative to the damaged joist, let dry, then apply a second coat. Treat all sides of the new partner reinforcing joist (2x4 or 2x6 of pressure-treated lumber) with clear sealer-preservative, and let dry.
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