Use the electric sander (or an electric planer or a small table saw) to mill the replacement dividers so they are approximately 1/16 to 3/32 of an inch wider than the average width of the divider cavity. Measure the width of the gap at several spots with a ruler or tape measure. SlabGasket is the perfect and cost effective replacement solution for rotten or missing wood. Use isolation joints between slabs and columns, walls and footings and where curbs or sidewalks meet other concrete structures. And that’s all there is to it. Don’t worry about the nails though. Wood dividers in a concrete sidewalk, driveway or patio aren't just decorative; they serve an important function. If the gap is wider than your backing rod, you can braid multiple strands to make a thicker "rope.". Even if your home was built on a concrete slab, you can still enjoy the beauty and charm of hardwood floors. Do the same for the gaps between the concrete slabs, but stop filling the gaps about 2 inches from the top of the slabs. The "expansion joints" are there to keep the concrete slabs from breaking when they expand from warmer weather and push against each other. Once in place the dividers will be fully protected. Used in residential, commercial, and institutional applications. SlabGasket is… Designed to replace rotten or missing wood expansion joints in driveways, walkways, patios, and pool decks. Two common nail options are shown below: the cut nail and the concrete nail. We don’t want hammer marks on our brand new divider strip now, do we? First, use the hammer and chisel to remove the old wood strips. The dog decorating the front of the tin bank was a comic cartoon star from the 1920s to the 1940s. It offers many advantages over the tube-dispensed gooey stuff that has been about the only option available for years. The dividers are put in place when the concrete is wet. For tips from James and Morris Carey, visit their Web site at www.onthehouse.com or call the listener hotline at 800-737-2474. Glue alone will secure furring to concrete walls, but it's typically not sufficient in most instances. While I rarely have to install a wood strip floor on concrete here in the North East, a lot of you have houses built with a concrete slab as a subfloor. Use side-cutter pliers or wire cutters to clip off any portions of nails that have not yet rusted away. QUIKRETE® Expansion Joint Strips (No. Because you live in the Oakland hills, you have clay soil. Follow this process and your new replacement dividers will outlast the originals. They put a base of rocks and then used wire mesh before they poured the new concrete. The American Concrete Institute's Guide for Concrete Floor and Slab Construction (ACI 302.1R-89) recommends using long-strip construction. Do the same for the gaps between the concrete slabs, but stop filling the gaps about 2 inches from the top of the slabs. You’ll need a hammer, a wood chisel and a hand saw, maybe a pair of side-cutters, a small vacuum and an electric sander or an electric planer or a small table saw (these can be rented) and a small block of soft scrap wood about 12 inches long. Everett Bible Baptist Church hosts Trees of Christmas, with music, narration and special treats for the family. Concrete expands and contracts depending on the temperature so using a hard substance will cause further cracking, expansion joints are critical between slabs. Trim-A-Slab is a product made from exterior-grade materials designed to replace rotten or missing wood often found in driveways and sidewalks over 5 years old. Try to accomplish most of these chores, but don’t beat yourself up if you can’t get them all done. To make the wood dividers last as long as possible, be sure to rub a couple of coats of clear wood preservative onto all six sides of every strip. An excellent groundcover plant, this variety forms a flat, dense carpet of glossy chartreuse leaves. This helps prevent cracks and buckling. Clay expands when it gets wet and shrinks when it dries. The pieces of wood between your concrete slabs are expansion joints. Clean any remaining wood chips, soil and concrete debris that remain in the gap with a shop vacuum or other vacuum cleaner. The easiest approach is simply to nail the wood to the concrete. If the dividers are original, there may have been nails driven through the dividers to hold them more securely. During divider replacement the nail keying technique cannot be used. The purpose of an expansion joint is to allow the concrete slab to expand and contract with temperatures changes, without cracking the slab. Your … You might assume that once you have removed the old wood from the concrete there won’t be anything to hold the new wood in place. Start at one end of the wooden joint. Concrete slab floors do require that all subgrade utility rough ins be completed before the slab is poured and be accurately located. Oh, and don’t forget eye protection. Don’t cut them completely away. Next, vacuum the cavity to remove scraps of wood, concrete and small debris. The Willamette Valley of Oregon has a reputation for the red wine, but there are other success stories in the area. Expansion joints, also known as isolation joints, completely separate two sections of concrete slab. There is a crack between the step and slab. after concrete’s initial cure when it is expelling it’s water content (and shrinking), it then acts like a sponge and absorbs moisture. Purchase foam backer rod that is about 1/8 inch wider than the average width, ensuring a tight fit. Remove the old wood strip with a hammer and chisel. Again, if the wood is rotten enough to need replacement, there probably won’t be any nails. It is recommended to have concrete joints along column lines, either sawed or keyed. The new wood strips are held by the irregular shape of the recess in the concrete. The spacers helped break up the concrete into smaller slabs that were less likely to crack. Expansion joints should be the first joints planned and installed fo… Can I use the grinder to create a joint and follow these directions. Cut nail Nails. Purchase some redwood or other fine-grained lumber like teak that's naturally resistant to rot. Every year or two pour oil onto the divider strip and let it trickle down the sides and ends. Air, dirt, asphalt soaked fiberboard, or wood, all will do the same thing: Give the concrete a place to expand TO. The Careys are also on KRKO (1300-AM) from 6 to 10 a.m. every Saturday. Insert the flat tip of a digging bar between the lower edge of the wood and the ground. Â© Copyright 2020 Hearst Communications, Inc. 6 in. Wipe off the excess to prevent a sticky mess. Verify that the backer strips and sealant you purchase are compatible materials. Cut the strips of wood to fit each of the gaps making sure the shape of the strips is wider at the top than at the bottom. Simple physics holds it all in place. Wood divider replacement is rather easy. If green wood is used (green referring to moisture content, not color), it will shrink as it dries out and in very short order, two to three months, it will be loose and in need of replacement. The joints allow each section to move independently -- both vertically and horizontally -- as the concrete freezes and thaws, or undergoes soil shifting and other movement. Once the old wood is out, use the side-cutters to shorten any nails that may remain in the concrete. SlabGasket is produced in 50′ rolls, and is sold by the foot. If you were present when your patio was being poured, you may have noticed that there were evenly spaced rows of nails partially driven into both sides of the wood dividers. it is better to require some sort of phsyical barrier between concrete and wood (treated or not treated). Wooden spacers were commonly used as control joints for concrete driveways. Your problem is … In warm, humid areas, however, even decay-resistant wood that's been sealed may rot. When our concrete steps were poured a few years ago, the contractor did not put an expandable joint between the bottom step and the concrete sidewalk slab. © 2020, Everett Herald and Sound Publishing, Inc. 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During the pandemic, the Spada family has been busy renovating an old building on First Street. Trim-A-Slab is a replacement for rotted and old wood typically found between slabs in driveways and sidewalks. As the wood is driven into the concrete cavity the sides of the strip adjacent to the concrete are torn upward. This is a repair that is relatively inexpensive, and although somewhat time-consuming, fairly easy. Subterraneans that find the gap between the floor slab and wall encounter the bottom of a tasty wood baseboard, and also the thin vertical strips that run up the wall from the floor to the ceiling behind the drywall, called furring strips. Installing a hardwood floor over a concrete slab. I must say, you are lucky to lack a basement, it has just been a depository for junk in my case. Proper installations include the use … Calculate an average width. As the wood is driven into the concrete cavity the sides of the strip adjacent to the concrete are torn upward. Between the compression created by installing a slightly oversized piece of wood and the upward angle of the torn sides of the wood you’ll have a tight fit. The dividers are put in place when the concrete is wet. A: Howard Brickman responds: Concrete is a good substrate for installing wood flooring if proper precautions are taken to ensure that excessive moisture conditions are detected prior to installation,and controlled during the life of the floor. If your concrete patio is in good condition except for gray, tattered and splintering wood dividers then wood replacement may be in order. The following is a breakdown of the pros and cons of four versatile fasteners most often used for attaching wood to concrete. Flat, dense carpet of glossy chartreuse leaves just decorative ; they serve an important function Careys also... Museums, ice-skating rinks, shows and special walks lucky to lack a basement, it has just been depository. 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