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how to keep a deck over a slab from rotting

Building a deck from wood requires special considerations due to the effect that moisture has on the material. One way that builders have designed to mitigate the spread of rot

On the downside, obviously, is the commitment to maintain it regularly. and by regularly, I mean a thorough cleaning and restaining (or repainting) once every two or three years. Replacing the concrete deck with wood could have been done in one of two ways: completely demolish the concrete porch and build a 100% wooden one in its place, or use the concrete as a base and just add wood on top of it. Since our concrete was in good condition and would offer a solid 

4. Use Rot Resistant Wood. There are lots of choices when it comes to rot resistant wood. Most of the tropical hardwoods like , and Teak are all great choices for decking since they are so hard and resistant to rot and insect damage, but they can be more expensive. Western Red Cedar and Cypress are my go to choices for exterior items like siding, trim and screens. They are readily available and provide decent rot resistance at a fair price.

This is the last of a 2-part amateur demonstration of how I replaced a post that was rotted out from underground moisture. after removing the old post I modi

architects and builders often ask us for deck installtion tips when installing and other hardwood decking on sleepers over concrete and rooftop decks. If the sleepers are installed perpendicular to the flow of the drainage, this will impede or stop the water from draining. Some designers will Recycled plastic lumber is often used for sleepers because it is rot resistant and should last as long as the decking material and the rest of the deck structure. If pressure 

decking posts are a key structural element supporting your decking that can rot and fail with serious consequences. Wooden deck posts perform a key role in keeping your decking standing If your decking supports rot in the ground then your garden decking will become unsafe The cost of replacing your decking posts can be very high as the decking has to be dismantled to allow access. Supported by wooden posts. decking is a popular and attractive addition to any property 

In the U.S. people still bury posts in the ground. placing a post in the ground with concrete depends on your local building code and the weather. I live in Cali in a well draining area so I do bury my posts and use concrete. P.T. lumber if you get the good stuff can be in water. There is a secret to putting wood posts in the ground to help reduce rot issues of the post but since all you people think its wrong I dont need to tell you but its actually covered in a video on youtube 

July 2, 2013 Framing & decks. 3 Tips for Building an Enduring deck. Since most decks are made of wood, we can of course expect them to rot … eventually. The average deck, composed of treated lumber joists, beams and posts, will last somewhere between 15-25 years This means not encasing it in the concrete, nor allowing it to sit directly in contact with the concrete where it can wick moisture or find itself encased in silt and topsoil after a few good downpours.

Install decking a few inches below patio doors in order to avoid rotten doorsills and damaged flooring.

Rent a 2-4 inch concrete drill and have at it. Try to hit all the low areas you know collect puddles in the rain. Use ceramic tile, brick or another indestructible base for your pilings, topped with good pressure-treated timber. That half-inch to a couple of inches of zero-rot will keep the timbers high and dry enough to greatly extend their lifetime. Use composite for the decking and railings. Wood is expensive if you use second-rate stuff and crazy-spensive if you use first-rate 

Install Z-flashing behind the bottom of the ledger and over the siding below. This keeps water from wicking along the bottom of the ledger and getting behind the siding. Leave a 1/8-in. gap between the end of the ledger and the ends of siding and fill it with high-quality exterior caulk to keep water from leaking behind the ends of the ledger. anchor deck joists to the ledger with joist hangers, filling each hole with galvanized joist hanger nails rated for pressure-treated wood. Predrill and 

The slab itself is about 7'' off the ground. Can I put decking strait on the cement slab without any joists??? It would make my life easier if I could because the dek-blocks plus the framing makes the decking the perfect height to do this. Will this cause my deck to rot or be unstable? yes,here is no problem ,you can put decking strait on the cement slab.also i think,if possible, with the help of proper deck builders, wrap the bottom of the posts with DPC to prevent from external 

keep the bottom outrigger set 1-1/2 in. above the brackets. Next, cut 22-in.-wide pieces from 3/4-in. treated plywood to use as sheathing for the front and rear of the planters. Measure the lengths of plywood so they'll be flush with the bottom outrigger and then extend 40-1/4 in. above the decking. Complete these front and rear panels by screwing a pair of treated 2x4s at the outer edges (Photo 7). You'll notice that our length was a bit over 8 ft., so we added a piece of plywood to fill later.

He sees it all the time: deck joists rotting from the top edge down because the deck boards and debris keep them damp for weeks after rain. So he has two rot-fighting tips for deck owners and builders: 1. Take a few minutes occasionally to pull out the leaves, twigs and other debris that gathers between deck boards, especially where the decking crosses joists. a drywall saw works great for this. 2. If you're building a new deck, cover the joists with rubbery, adhesive-backed “flashing 

to ensure a longer life for the decks I put so much into, I use a number of techniques to prevent rot from taking hold. There's no airflow between the fascia and the framing, so the 21 percent moisture content required for rot can be maintained over long periods of time, and there's no way for debris to escape. But if you simply . You should keep the posts out of the ground by installing them on concrete piers formed with Sonotubes, extended 6 inches above grade.

Courtesy decking. Do you need to replace a broken, ugly, stained concrete patio? Don't spend thousands of dollars (or break your own back) having it demolished. Instead, install a ground-level deck right over it! But first, you will need to install Plus, you can install decking easily over a patio or on a rooftop space on a sleeper system. You may need to use non-rotting shims or additional concrete underneath some of the sleepers to maintain level and add stability.

deck (Figure 2, page 2). There's no airflow between the fas- cia and the framing, so the 21 percent moisture content required for rot can be maintained over long periods of time, and there's no way for debris to escape. But if you sim-.

You can avoid the cost and mess of tearing it out by just screwing down wood sleepers and decking over it. to keep step heights equal, you'll have to raise the treads by the same distance you raise the patio (2-1/2 to 3-1/2 in.). Figure a: deck over a Patio. Sleepers screwed to the concrete allow you to screw on decking. Spacers and flashing tape protect sleepers from moisture and rot. Fascia boards hide exposed edges for a neater look. For a, printable version of Figure a, see 

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