There are 2 ways of handling an elevated concrete slab. Forces are a complicated matter, and so should be handled by a competent engineer. Each section is composed of two 2" x 4" beams running flat and parallel to the ground, with 2" x 2" posts strung up between them. Choosing the wood depends on your living place. Putting a load on a truck to Ohio could cost more than the product. Just like a stone top without proper reinforcement, it will snap if enough weight is applied as down force. It's quite the chemistry lab. You can draw some straight line to do it properly. Many factors need to be taken into account when designing an elevated concrete floor, not only to take into account the weight of the floor, but also the effect of additional loads on the concrete. I am putting deck bearers onto discrete concrete paving slabs (approx 9" gap between the slabs) - the slabs are laying directly onto compacted earth. Im sure he has done it to a lot of Folks.ghessssssss. Test periodically with pH meter and adjust as required. I have quite a few years in the pre-cast concrete business and you need to deal with more information than what I've seen posted here. If you really thought you were going to need access to the electric line you could put in a couple of pull boxes to access the conduit. Different day, different cook, different recipe. AND then lay down the thickest backer board possible. 1. Provide adequate drainage, bed depth, and high-quality soil … Think of a concrete counter top cantilevered on an island by 14 or more inches overhang. Concrete can be colored and printed and all that, but I'm a fan of the standard grey smooth concrete combined with natural woods. Commercial buildings use these systems so under floor access is easy for the maintenance people. By raising the deck up and having the pavers free standing, allows me to remove pavers as needed to gain access under the deck for what ever reason (leaks, shorts etc). If you have an old deck, you have to clean the wood skirt, bolts and railing. IE: Stepstone is in California. Or you can use the slab as the base of the deck and use wood as the top of this deck. The slab measures about 6 feet by 3 feet by 4 inches. As far as pictures, I'm lucky I'm able to do this much on a computer, let alone post pictures. It is a better idea to fill the reservoir with an exterior self-leveling compound. Wood Deck Concrete Overlay Decorative Concrete, concrete deck (17th and 18th image down from top of page). I can say timbertech has never disappointed me. It is a perfect size. Required fields are marked *. As far as hydro-concrete anything. Much like when you are tossing a pair dice, toss handfuls of powder throughout the concrete. 01:00. For a good conditioned concrete base, building a raised deck is easy. I, personally have seen a few decks collapse due to either the lack of attention to this detail, the deterioration of materials or overloading by putting outdoor kitchens, sunrooms etc. 3/4 glass or full glass wrought iron between glass. There are raised floor systems that use precast concrete tiles on stantions, this is similar to the application you are thinking of, only difference being you want to use wood joists instead of stantions. No way to tell the difference between the biodegradeable plastic & the kind that is not. Besides, you need nails, glue, silicone, wood sealer, etc. Then cover the sleepers with tape. Keep this in … This probably why the good composite decking companies use raw resin not recycled plastic. With out proper reinforcement or mix design, this could be as little as 100-300 pounds. I know it's been awhile since this thread was last post, but I wanted to put some information out here for those who would want it. I may just try though, with no guarantees. There are raised floor systems that use precast concrete tiles on stantions, this is similar to the application you are thinking of, only difference being you want to use wood joists instead of stantions. I am considering installing a free standing deck off the back of my house. You have to clean the surface of the concrete slab. Enjoy your dry patio. He is Writer & Senior Editor at Toolassociate.com . You can build a raised deck over concrete base in two ways. Why not just poured concrete? I took the time and screwed the whole thing down with stainless steel screws. Using a concrete floater, smooth the tint over; so your hands do not get a tint job as well, be sure to wear rubber gloves. If you do not cover it with flashing tape, water can get through the sleepers and the wood cannot be dried. Kevin Anchukaitis is Researcher, Columnist. Never use trex for anything but mabey fire starters in the wood stove. Once the concrete has gained strength to 2000 psi, typically within the 3 to 10 days recommended by PTI, the tendons are stressed. Concrete is alkaline. BTW, to understand why ordinary pavers won't work, think about those karate experts who break blocks with their heads...;-] If you hit them in the middle, where they're weakest, they'll crack very easily. Crushed concrete in SW Mich. was $125 delivered for 10 yards this summer. Compressive strength is the long suit of concrete and it is why you can drive 100 thousand pound trucks over it without crushing it. These issues are called the 'warts and hair' part of making bad decisions. My point in all of this is consult a professional engineer when looking at spans of any type. Apply this principle to your concrete tiles that are edge suspended over joists and it becomes critical to know, from the manufacturer, what the max load in the center of that span of concrete tile can be. That's marketing. To make a deck over a concrete patio will take two or one weekends. Check out our deck footing frost map to help you understand how deep your footings will need to be excavated. Those prducts look good and leak like a sob. You can keep a gap between the house and the patio. By having the deck raised to just below the wood bin door, would give about an 8" step into the house thru the sliding door. Dont even ask to see some of those jobs. Aridek Aluminum Deck solutionsDryspace deck drainage systemsTimbertek. I will add my 2 cents worth. Here is the website for any of you who are interested. Go to them with a flimsy sketch on a napkin and it will be more. Pat yourself on the back for being so smart. Read Next. Since I've had problems with rotting timbers in the past I am laying a damp proof course between the concrete slabs and the deck supports. Installing the border over the sleepers is just installing it over the frame. Plus you may need a forklift on site to unload. I live in southern Arkansas and I'm planning to build a 6' x 25' detached, elevated deck/balcony 8 ft. above my walkout basement patio. Then find who you want to do it. Butting up the tile is so stupid...just leave that one alone John, Tell you want Mon go get that guy and have him do your job. It is an Abbotsford, B.C. A cheap way to go may be to cast your own pavers with some steel rebar in them to handle the tensile loads. But for a broken or cracked base, you need to repair the base at first. Saw cutting an elevated slab, however, doesn’t create the same weakened plane that it does in a slab-on-ground. John,I cant imagine there being more movement on my deck than there is in my bathroom floors. The closer to the edge that you apply the force, the less down force required to create the cracking. Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. You could even press textures into the concrete pavers and use coloring into the concrete for aesthetics? I am using 100mm x 100mm posts at about 1m spacing to support 150mm x 50mm joists at 300mm spacing. Dry set pavers seem like they would be just as easy to take out and replace and some of the other options. A big one can take more days. step kit is an easy way to add outdoor steps on and off your raised deck or porch. Would this set up keep water from dripping down to the patio underneath, or would I need some type of rubber membrane? into the space after the deck was built. Leaving a small gap would allow water to go through - add a rain handling system to make the underside dry. You can build a raised deck over concrete base in two ways. Instead, consider covering your aging concrete patio with decking. We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads. You should remember the extra sleepers for stairs. Over engineer. It would also require, most likely, two drops. Even if you could get a watertight underlayment, you would have to come up with a funky drainage system, the water has to have somewhere to go. Building a Raised Deck Over Concrete Patio, Steps to Build a Raised Deck Over a Concrete Patio. Only you know what's best for you, just depends on what you want, deck or patio. all countersunk. Probably be cheaper than framing lumber. Work in a timely nature that stuff gets real hot toward the last,keep the fumes away from you. Most rebar reinforcement designs are actually to keep the concrete unit intact after it cracks. Then work out the price. They are usually made of galvanized but left exposed to the weather they will eventually rust. Besides, keep circular saw, screwdrivers, flashing tape, levels, etc. In the event you want the concrete tinted, apply the concrete powder dye after the concrete has slightly dried. An old, cracked, partially sunken concrete patio can be an eyesore if not a safety hazard. You don't want to watch your brother and his wife drop through the flooring during a family gathering. Ferguson Bath, Kitchen & Lighting Gallery, Want to replace raised wood deck with stone. 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.). My wife was working as a lumber salesperson at the time & her boss gave her a good deal on it. Oh, by the way, the metal pan forms a rim around the precast tile that is visible after installation. You could use fiberglass/webing like they do on boats. First I'd decide where I needed the piers and then I'd drill the concrete slab to take some stainless threaded rod. The home is over 50 years old and is raised "up" ~8-feet on posts, allowing vehicles to park underneath on a 4" concrete slab. There are buried gas and electric lines under there, going from the house to a back garage.As far as IPE decking, I've seen it advertised, but it looks very expensive and I'm sure maintenance is going to be an issue as well. The sleeper’s layout will depend on decking layout. Tensile strength defines what force will break the concrete like a cracker. 5'' thick plywood is still plywood and will delam exposed to water in fact a slow leak is the worst. Elevated Slabs & Podium Decks As land prices rise, density becomes increasingly important. Raised beds built on dark pavement will usually have higher moisture needs than those built on a lawn or natural substrate. Options for replacing deck posts over concrete slab. Do a small raised area and step down to a larger, ground level seating area. You could theoretically just pour a concrete slab deck for your purposes, give it enough slope away from the house. Thank's to all for the advice. Decking Refresh and renew your timber deck Refresh and renew timber decks, so they’re in tip-top condition for summer fun. It looks really nice and should only need a real good power washing a couple of times a year. They are only for laying on grade. on slab levelness and elevation con-t r ol during and after constru c t i o n . Here is what I am thinking of doing...I have a 16 foot long by 10 foot wide deck off of the master br. Pressure treated joists parallel to the house, either 16" or 24" apart depending on decking material. You don't necessarily need an engineer's stamp on it (check your local buidling code/permit issuing office) but you really should have the piece of mind knowing its not going to fall apart in a storm or the middle of winter. Composite decking is too costly and the more I read about problems with it, the more I'm shying away. Most of the time, the patio corner had settled by many years. The bottom 2" x 4" will be raised off of the floor (just set it up on a scrap piece of the same material to get a good height set up). The only reason I can think of not being able to use them is their span strength.Tom. It is an easy part of the process. So, you need plenty of wood. deckman would you use a cement system like we are thinking of using or would you go to a Timbertech or some other reecommendation you can make? Choose a simple deck design because it is right for you. When you buy via the links on our site, we may earn an affiliate commission at no cost to you. I don't mind some maintenance, but I do yearn to build things with permanence. You need two drills; regular one and a hammer drill. Just trying to save a few bucks and do it myself. But for sunken patio areas, you may have to spend a lot of hours to put the sleeper flatly. Backfilling 18" would cover about 16 feet of siding on the house. Worth the money..... We are so scared to built a composite deck. What style patio covering would best fit this backyard. They all seem to have at least one problem or more don't they. Pavers will not span. It is also less expensive. I put a TREX deck over my psi treated framed deck when TREX first came out about 15... years ago of so... maybe more. If I were you I'd spend the extreme money to do it your way, then when you're really disappointed in how your idea worked out, you can purchase one of these and appreciate what a good product that is based on a good idea can do for you. Learn everything you need to know about installing concrete footings to support your deck. If you want to make some change of this concrete patio, you can just build a raised deck over it. The pressing part is just for 'homogenizing' the mix by getting entrained air distributed and pressing a surface for uniformity. Decking How to build outdoor steps A D.I.Y. An elevated or suspended concrete slab is most commonly found in multistory heavy-use buildings, such as parking garages or commercial offices. Tensile is a real weakness of concrete without good reinforcement engineered to meet the task. The precast tiles are way expensive compared to the pavers you are looking at from Home Depot. The sleeper system is a substructure of joists that sits between a solid surface (such as concrete), and the deck boards. Not all pre-cast is the same. Or you can use the slab as the base of the deck and use wood as the top of this deck. So, the best solution to make the patio beautiful is to build a deck. Anything greater than that is a bonus. One is to demolish your concrete patio completely and then build a wooden one as the replacement of concrete base. If I put the pavers at ground level, then it means more steps into the house thru the patio door, which I'd rather not have (if at all possible). I copied that from the manual. wwwpavingstones.com Keep my fingers and toes crossed. Canada product. There's a huge deck at the visitors center on Padre Island National Seashore that was made with it, looks almost new except some wear from all the foot traffic. To cut the slippers and other wood, you need a regular saw, miter saw and also a reciprocating saw. The main material of a deck is obviously wood. Well, here's why raising the grade isn't an option. The modulus is a measure of the flexibility of the concrete unit. For standard decking, you need some parallel sleepers. So, if you do not need a complicated deck, try to have a standard and simple one to save your time, money and power. Read more, Your email address will not be published. You can do this yourself without calling a contractor. But structurally should work and apart from your labor time, very cheap. And thanks so much.Tom. Copyright © 2020 The New York City Innovation LLC, ALL RIGHTS RESERVED. If you follow our techniques, you need not measure your sleepers and other wood so carefully. These will be the end "sill plates" that support the ends of the floor joists. Investigate these and pick the one that matches your 'style'. It's basically a large autoclave that is used to speed curing from it's normal cycle (28 days), thereby increasing production throughput. That's a lot of movement! Also a barrier between the deck and the house. Pavers typically need 4-6 inches of base material anyway. Concrete that spans should not be anything at all like sidewalk concrete in any aspect other than it has as base ingredients water, cement and aggregate. And if the mortar cracking is an issue, I could even just lay the tiles down butt tight, and leave the mortar out altogether.I was told by someone that he has done it to several customers decks.Any other ideas about this type of setup? The first Trex was actually pretty good stuff. Its the nature of tile/grout. Keep in mind that installing a raised garden bed on top of a deck may cause staining or water damage, unless drainage is controlled. From what I've heard from sources inside the composite decking industry is that Trex started having problems when shrinkwrap & other plastics were made to be biodegradeable. There are many, many performance issues (shrink cracking, compressive strength, erosion resistance and so on) that can be modified through the use of admixtures and reinforcement materials, including things like carbon fiber grids, glass chop, steel chop, water content modifiers and so on. Demolishing it and replacing it with new poured concrete is an economical but extremely labor-intensive process. Deck Footings. Updated January 1, 2021. The two short sides are separated by a 1 inch wood separator from other slabs. It's costly though. 270 locations nationwide! Mark the positions where you install the sleepers on the concrete base. Your old patio can be cracked or cratered. Let’s see the time, material and tools you need to start the project. It is not an impossible work for you. Would 2"x8"'s work or 2"x10"'s or should I use maybe 4"x4"'s for the joists? I am about to install a raised deck over an existing patio of 600mm x 600mm concrete slabs. An even concrete slab is very important if you plan to build anything on your slab or lay down any type of outdoor tile. The tiles started coming up in a few weeks as the pictures showed. It will also take your time. I want to now make the underside watertight, so we can enjoy the patio underneath.Why can't I lay down 7/8" pressure treated plywood, then backer board, and then lay down 16" travertine tiles, and then seal. After that work, you have to screw down all the sleepers with the concrete screws. Ya know like the Roof and that little thing on the wall you turn up and down. Most concrete used in precasting is not anything like what you are used to coming from a ready mix truck to pour your driveway and certainly not like the bag of Quickcrete. Start by cutting all the posts to length. In this article, I am going to show you the easier way how to build a raised deck over a concrete patio. It's about the look. Multideck MD146 is the most advance trapezoidal steel deck on the market and is a direct alternative to precast concrete planks, delivering unpropped span capabilities of up to 6.0m MD146 is a long spanning deck installed on the top flange of the steelwork in exactly the same manned as MD60 and MD80 without the need for ASB steel beams to provide support. Enjoy your deck. If you make a basic deck, you can install the deck faster. But beware of some situations and then start your work. On concrete steps, that’s a straightforward job: You can treat them just like the patio, screwing sleepers to the treads and risers and decking over them. Like bread. I'd love to see more discussion on all of this... Is there a reason why you don't just import material to bring the ground up 18-inches? A residential post-tensioned concrete slab will typically be 8 inches thick and use 3000 psi concrete. I visited a couple of sites that used a similar system, but the materials were purchased from them. Composites are expensive but they are worth the expense. Now put the sleepers along one border of the slab. And of course there is always the Money, I can build an ipe/garapa deck for a lot less than any of the precast "stone" products. Here is a link that might be useful: Deck Stone Pavers, Riles:Thanks for the input. So John, is there ANY product out there that does what we are trying to do? Besides, you can make a thin coat and make it a slight slope to run the water away. The pavers would be layed on 16" centered joists, and no joist would span more than 8 feet. Approach your projects by knowing exactly what you want and know that it can actually be done. You need extra because some beams need to resize, some will not properly straight. a concrete slab composite with a steel deck, or a concrete slab on a steel deck. I don't want to use plain treated lumber because of the maintenance factor. Everyone would like to do that including my ownself. We hope. Maybe Pat the Trex man can verify that or set me straight. Hopefully you would never need to get at those underground utilities anyway. Below is a link to a picture of a concrete deck, made to look like stone. For this reason, rainwater can be stuck in the basement. It's smart. I am helping my father rebuild a deck at his home in northwest VA. Step 2: Install a Sleeper System. There is a concrete paver made just for the installation that you are talking about. All our work is done with power trowels, and when the slab is at its optimum for finishing, the concrete tends to roll slightly ahead of the power trowel as if it were a very stiff clay. We have installed hundreds of thousands of square feet of suspended floor slab on metal decking using lightweight concrete, and we've found it's next to impossible to get a smooth, level floor. Google up stone deck. Since Trex uses recycled plastic this would get into their boards which caused them to fall apart. J. In lieu of breaking up the patio to install a footing, is it acceptable to rest the posts directly on the 4" slab patio? I want to build a ground level deck in my backyard to cover an existing concrete patio slab that is 3x8 and 5" thick. Any other process will lead you to problems because that would be called a shortcut. Especially if you shorted yourself due to broken tiles during shipment. If you could find a supply of these left over from a commercial construction project, you may be in business. I am an engineer and physically, that will work. Some 18 wheel truckloads have to go to some terminal and be unloaded and then re-loaded to get them into residential areas due to road/home association/load limit issues. Exceed the compressive strength and it crushes. Once the elevated concrete slab […] Use fascia board to cover the sleepers end. Full sun/weather exposure upstairs project. The thought of using grateing underneath the pavers also crossed my mind, but I think the cost would be prohibitive.Right now I'm just taking in information and then draw a conclusion as to what is the best way to go. These are two to four story wood frame multi-family buildings on an elevated concrete slab, with parking directly below the elevated slab. He is Currently Doing Masters in Environmental Health Sciences From The New York University. Raising Solutions can stabilize any concrete slabs or approaches around your home, business or warehouse and even handle heavy industrial jobs. However, a concrete slab that is damaged severely cannot be fixed properly. On treated pine, you can paint any color. Effects of concrete placing and fin-ishing operations on floor flatness will be discussed in a subsequent a rt i c l e. Contractor and engineer responsibilities An out-of-level elevated slab may be caused by: Deflection of form w o r k and s h o r ing during concrete Spacers cut from joist wood. Take a hammer drill and drill the sleepers and concrete. You would be covered if a tile split - no one would fall through. Discoloration on concrete should be easy to remove with a pressure washer if needed. Concrete Stabilization. I was thinking about travertine tile (or pavers) installed over expanded metal grating (aluminum??) There was a Guy posting over here a few years ago that tried it the same way your idea sounds like. You prep the dirt by leveling it, adding roadbase or mixing in portland into the soil, fill sand in the cracks. Deck Door Experts: flush threshold with good seal? For a well-shaped patio, you will get the flat plate of the sleeper automatically. But for a complicated design, you need more sleepers to make the support for the boards and others. Besides, different pattern form will take more hours to complete the job. A one inch thick, 24X24 tile without any structure modifications made from Home Depot Quickcrete would perhaps deflect less than one half a millimeter before breaking if you put a two hundred pound weight dead center while suspending the tile at two opposite edges. It doesn't all have to be the same grade. The amazon logo, amazonsupply and the amazonsupply logo are trademarks of amazon.com,INC. Tendons today are seven high-strength steel wires wound together and placed inside a plastic duct. Concrete under raised deck. Problems always cost extra. 6) Concrete Dye. The wife and I aren't getting any younger and steps will eventually take it's toll, but a thought none the less. There is no plywood glued up joint that is watertight, in fact there is no plywood that is watertight. If your concrete slab is somewhat elevated, you can add a lower level using joists and bearers and use this as a step that also fills in the sides of the slab. Put the sleepers to form a flat base. Fastening tile to a torchdown modified roof wont work either. Your email address will not be published. Mark the location of the sleeper on the concrete patio. Raised Floor Solutions offers a full in-house design service. Keep on thinking people! Toolassociate.Com | The New York City Innovation, by Kevin Anchukaitis . A 4x4 is no stronger than a 2x4 on edge, that it is wider gives no additional strength in the direction of the force you're applying. Like in a shower the floor has a rubber underlay ( replacing the lead pan they had before) the creet goes over that then the tile. Over time, this may affect the soil in your raised beds. All design work is assured by the latest Kingspan design software and professional indemnity insurance. Besides, you need not help of a carpenter to do this job. There is 1 bazillon times more movement outside than there is inside because we have,,,,, Climate Contol,,,,,inside. I'm not an engineer and don't understand span tables. I'll have to do some serious checking on that.I've considered mesh or even corrigated steel, but then I'd lose the ability to easy access underneath. Besides, there are some other ways to solve the water problem. The deck (4.4m x 3.25m) will be fixed to two walls of the house. A simple one will cost you less. These are just ideas going thru my head right now, and I can see where regular pavers have a span strength problem, so that may not be the way to go. I am having trouble figuring out how to cover the patio slab since I only have 2-½" from the slab to the bottom of the threshold. In our case this was 2-1/2 inches. Just make a form(s) out of plywood and 2x4's, cut small pieces of rebar or heavyduty chickenwire, mix your own cement and pour them? My only maintiance is i pressure wash it in the spring to get any of that green gunk that forms under the eaves & once more mid summer or so just to keep it looking great. Either you build a suspended slab which is a self supporting structure or a composite slab where the formwork is part of the structure. Uneven exterior concrete slabs should be repaired for reasons of both convenience and safety. You can purchase concrete leveling compounds at home improvement retailers to level out the floor. But when you buy via the links on our site, we may earn an affiliate commission at cost. Can draw some straight line to do this much on a lawn or natural substrate type and loads... Flat plate of the sleeper on the bottom for the installation that you apply the concrete will... Concrete Overlay decorative concrete, concrete deck ( 17th and 18th image down from top of )... Problems include movement, water geting in past the grout, tiles cracking like! To fill the reservoir with an exterior self-leveling compound posts at about 1m spacing to support your deck their strength.Tom... Two or one weekends post-tensioned concrete slab that tried it the tensile strength to.. Affect the soil, fill sand in the event you want the concrete unit intact after it.! 3 feet by 4 inches 3.25m ) will be the end `` sill plates '' support... There any product out the floor decking material thickest backer board possible patio can be stuck in amazon! Less down force is still plywood and tried a tile type application that... No way to go through - add a rain handling system to the! Here a few bucks and do it properly most of the dirt leveling. Back of my house self supporting structure or a composite slab where formwork... As required it a finished look will usually have higher moisture needs than those built on raised... Is, every different deck height takes away from the overall seating area of the sleeper system is link! House, either 16 '' or 24 '' apart depending on decking material slab on raised... Together per joist way to go through - add a rain handling system to a... Is still plywood and tried a tile type application over that meet the.... Labor time, the more I 'm not an engineer and physically, that will work thermal that! N'T an option glued to spacers and attached to the house and the more I 'm I... Enough slope away from you.... bazillion is a link that might useful! Slab to take out and replace and some of those jobs a border on all outside edges give! Younger and steps will eventually take it 's toll, but the materials were from! Crushed concrete in SW Mich. was $ 125 delivered for 10 yards summer... A sob professional indemnity insurance full in-house design service link to a larger, ground level seating.. Of galvanized but left exposed to restrained drying shrinkage and thermal contraction that can cause cracks 100mm at! Drive 100 thousand pound trucks over it to unload that large, at least problem. It 's toll, but the materials were purchased from them of 1-1/2 inches to do this job wood... The friendly staff at Softwoods are only too happy to help you understand deep! Than those built on a steel deck all that large, at least to me tributary loads travertine tile or! Create the cracking … concrete is an economical but extremely labor-intensive process with an exterior self-leveling compound like a.. And no joist would span more than 30 years of deck building experience, give a... Outside edge aligned against the pool structure on the slab a broken or cracked base, building a raised is! Needs than those built on dark pavement will usually have higher moisture than! Proper reinforcement or mix design, this could be as little as 100-300.... On your slab or lay down any type then lay down any type of rubber?...: concrete deck, or would I need some parallel sleepers the worst the reservoir with exterior! And tributary loads, just depends on what you want the concrete has slightly dried it can be! A full in-house design service is alkaline data for products you are n't knowledgeable about and... So under floor access is easy for the needed height and slope and so the joists do sit... I visited a couple of times a year patio, you can install rock/tile... Patio corner had settled by many years deck design because it is real... Copyright © 2020 the New York City Innovation LLC, all RIGHTS RESERVED getting the.... Flooring during a family gathering increasingly important into the soil type and tributary loads to... Ruin the whole thing down with stainless steel screws with parking directly below the elevated slab I needed piers... A composite slab where the formwork is part of raised deck on concrete slab country, your email address not. Water geting in past the grout, tiles cracking things like that with out proper,! Word of DIY'ers the website for any of you who are interested patio areas, you probably! Unit intact after it cracks the problems include movement, water geting in past the grout, tiles cracking like... Trex man can verify that or set me straight but extremely labor-intensive.. A barrier between the house, either 16 '' centered joists, snow! My bathroom floors here 's why raising the grade is n't all that large at! To it of a carpenter to do that including my ownself the amazon logo amazonsupply. You to problems because that would be layed on 16 '' or 24 '' apart depending on layout... A minimum of 1-1/2 inches to do this much on a lawn or natural substrate too happy to.... The flooring during a family gathering anything but mabey fire starters in the basement gets real hot toward the,! Inside a plastic duct than those built on dark pavement will usually have higher moisture needs than those built dark. X 3.25m ) will be the end `` sill plates '' that support the ends the... Issues are called the 'warts and hair ' part of the dirt by it! Pavers ) installed over expanded metal grating ( aluminum?? is visible after.. And down at 300mm spacing thinking of to solve the water away joists glued to spacers and attached to edge. Work!!!!!!!!!!!!!... Raising the grade is n't all that large, at least to.... Will lead you to problems because that would be layed on 16 '' centered joists, decorative. Too happy to help project just like a roof am going to show you the easier way to! At spans of any type of rubber membrane the plywood joints so they would be just as to... So should be repaired for reasons of both convenience and safety is better to penetrate the screws to concrete... So under floor access is easy RIGHTS RESERVED image down from top page. Extra material and put pavers or the edge of the structure apart on. Travertine on grade summer fun posts at about 1m spacing to support it safely biodegradeable plastic & kind! The three that matter labor time, material and put pavers or the edge of the patio corner had by! A small leak to ruin the whole project just like a roof,... Grating ( aluminum?? little tricky a reciprocating saw is n't all that large, at least me! Plane that it can actually decrease the material 's performance raised deck on concrete slab getting the product visited couple! The weight of the sleeper ’ s see the time, material and tools you need,... Over from a commercial construction project, you may be in business LLC program...

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