dimple mat basement floor
Another way that may work if you have okay headroom is to turn the first step into a landing. At this point I am planning on tearing up carpet that was installed wrong on my basement floor and replacing with 6 mil poly + 1" EPS foam + 1 sheet of plywood + bamboo. That all makes good sense. After a few months the stain had failed and there was liquid water under the mat. Of course, thicker insulation would be better -- but your approach will work. I'm comparing prices but I'm unsure of the appropriate density of either material. Daniel, Darcy, Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. Thanks for any advice or input. Response to Lisa Weber http://www.amazon.com/Watts-Brass-Tubular-2-M2-Valve/dp/B00128816E, Here is a link to the item on the Watts website: Location is Madison, WI. That is, when the drying starts the whole concrete structure is filled with water, or else the whole concrete structure is 95 percent RH.". to install the XPS and plywood, then reinstall the fixtures on top (while extending the drains, of course). Seal the edges of each piece of foam insulation with a high-quality European tape, with caulk, or with canned spray foam. I live in central Minnesota (climate zone 6). We do not heat it in the winter until we start using it, usually first of March. How long do I need to wait? A reader turning a partial basement into living space will have to remove the slab that's already there. Q. Are you thinking of gluing the osb to the foam below? Any advice would be greatly appreciated. I posted on the basement insulation site, but I’ve developed my thinking a little more and now ponder whether this would work for the concrete basement floor that I very much want to finish in ceramic tile….6″ poly, 1″ XPS foam, 3 Re: your response The existing concrete slab is uneven. Use a prepackaged calcium chloride test (widely available) and follow the manufacturer's instructions. Or is the Delta FL system reliable?”. But the effect isn't worth losing sleep over, in my opinion. Response to Greg Volland A. But foam insulation is a better choice. Q.) Hi Martin. We live outside Boston in an 1880 home with a fieldstone foundation, a somewhat uneven poured concrete floor, and 80" to the ceiling joists. Just a clarification. I don't know whether the builder had put rigid foam under the slab. It's fine to install a second layer of polyethylene on top of the concrete slab. Thank you Martin! I have a few questions that have not yet been covered. Thank you for the incredibly fast reply. If it is likely to be subject to flooding, address the water issues first, or leave the exposed concrete and manage the water when it happens. Thank You! We have interlocking floor tiles for basement use consisting of multiple materials, including carpet tiles for basement. Walkout basement. Do the same requirements apply in terms of moisture passing through the slab if I was to install the EPS + plywood you mentioned earlier in the thread (and finish with carpet or vinyl flooring)? Comfortable & Mold Free Basement Floors. +1 on planning for a "dry" basement to get wet. Four, The finished floor is isolated from the cold concrete … Flooring options follow up The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor. Response to Martin Holladay for waterproofing a block basement wall (this is new construction). 2. Maybe just put down tile, if that height can be accommodated. Darcy, Response to Darcy Grant It probably wouldn't hurt to support the toilet and bathtub with a few lengths of pressure-treated lumber (installed as sleepers, replacing some of the rigid foam). For more information on this topic, see comment #6 from Mike Guertin, below.). Is it possible to do a finish concrete floor over the EPS to avoid a subfloor and tile? The same job is also profiled in this article: The Stay-Dry, No-Mold Finished Basement. I believe that if I use at least 10mm laminate floor that I can skip the t&g plywood. Your thoughts? I recently installed a perimeter drain with a sump pump and would now like to finish the basement. What are the thoughts on a basement concrete floor finished in epoxy? You bet. And in most situations, EPS or XPS will be enough of a vapor retarder to eliminate any vapor diffusion worries. If I am understanding correctly, you are suggesting tile directly on top of the concrete slab (once I've confirmed the moisture level and found it to be within range) for an area like the bathroom and for a living space, I should use the EPS + Plywood with some sort of vapor-permeable finish floor (carpet) or wood/bamboo? Martin, I'm planning to use the floor assembly that you describe over an existing slab (floor leveler, delta dimple mat, 1 inch xps foam, subfloor, floating wooden floor) but I don't know what to do in the the utility room that has an existing floor drain. When installed in this fashion, they are hard and cold and are meant for utilitarian basements devoted to storage or for a quick game of billiards. Rigid foam is almost as good as polyethylene, because it stops most of the water vapor transmission -- but not quite as much as would polyethylene. Until reading this, I was considering Delta-FL with t&g plywood as the workshop floor. When you put even R4 between a slab in a sub-45F subsoil area the susceptible subfloor & flooring will be much closer to the room temp than the subsoil temp, and that problem goes away. If you need another room on your house, you may be happier with an above-grade addition than the risks associated with finishing your basement. The Stay-Dry, No-Mold Finished Basement. Explore Home Decor Flooring Cement Concrete Floor .. Dry Basement July 2020 Dimple mats on subfloor instead of Dri-core? Any engineered flooring product must be installed according to the manufacturer's recommendations. Cheaper? The usual technique is to install 1 or 2 inches of XPS or EPS foam insulation on top of the existing concrete, followed by a layer of plywood that is fastened through the foam to the concrete with TapCon fasteners. Thanks for your very informative site, you make our lives easier by not having to redo what we thought was the right thing to do. Yes, that would be the best way to proceed. The project is climate zone 7 but for the most part it's very dry and we are installing a full perimeter foundation drain. For a warm and comfortable basement, choose the Dorken DELTA®-FL Subfloor. This allows the concrete to breathe while keeping the floor dry. The easiest way to proceed is to leave the utility room floor uninsulated -- bare concrete with a floor drain. Daniel, Four Cats, Am I wrong? You can install Delta-FL if you want, but the Delta-FL is optional. I have never installed any type of finish flooring directly over foam, so I'm not sure of the answer. Choosing the correct underlayment system for finishing a basement is important. Thanks.. Thanks. I have a house built in 1920, cold climate (just north of NYC). It's safer to use a vapor semi-permeable finish floor, such as ceramic tiles or wood/bamboo etc. It is fastened mechanically (by a ramset gun and fasteners) and is not affected by shifting, cracking, and settling of the foundation wall. I'm considering using XPS or EPS foam at the same thickness so all of the floor heights match up. I am a skilled DIYer, but have not done a basement build out before. Rather than using unforgiving surfaces like cold concretes, add the correct style of basement flooring from Greatmats. Caleb, Greg, Gary, Would a finish concrete floor slab be more cost effective than subfloor+tile? The interior of your house will be warm and dry, while the dirt under your slab will always be cool and damp. bare utility rm floor negating some of our insulating efforts? So the second layer would overlap the the seams of the first. © 2020 The Taunton Press, Inc. All rights reserved. heavy-duty traffic, Damaged tiles are I don't mind doing tiles, which is water proof right? In the living area I will either do the same if we choose to tile that area or will shift to poly + rigid foam + plywood if we elect to do carpet or wood. This is more work than most homeowners would feel is necessary, however. Is it simply to bury the head of the tapcons so they can't be felt through the finished floor or is there physics based justification? That keeps all the risers the same height, and only makes the 13 treads a little over 1/8" out of level. If we had waited longer it would have been a mold factory. to install the XPS and plywood, then reinstall the fixtures on top?". The traditional solution is to build your own su… Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and What would you recommend for flooring in suburbs of Atlanta? For use under Vinyl Plank, Laminate & Engineered Hardwood to prevent Trapped Moisture & Mold | Made in Canada DMX 1-STEP 2.0 space-age contoured foam and unique dimple design provides the ultimate in sound absorption while allowing air to circulate beneath your floors, evaporating trapped moisture and eliminating harmful mold growth. It's a pleasure to be able to ask you some questions about these issues, if you don't mind. Response to Dennis Brown When you say relatively dense, are you referring to the psi of the rigid foam? Consequently, I have a humidity problem and get a damp floor (bare slab) when I heat the area when I arrive. When you say: "The intent of the flooring assembly is not to allow the slab to dry upward." Also, head height is a concern and I may need to remove one of the layers from the floor assembly. The DRY-UP™ Dimple Board can also provide a barrier on exterior basement walls preventing soil and moisture from touching the foundation walls. I've understood the system to be designed to allow for the fact that vapor or water molecules will diffuse toward the interior. Superseal, Delta-MS, etc.) Whether or not you like the look of polyurethaned luaun plywood as finish flooring is an entirely personal decision. It will enhance the area for any use case. Find flooring underlayment at Lowe's today. My questions are: Will this work? Neither EPS nor XPS will become saturated in this location, with or without a layer of polyethylene, unless the basement floods. when the sit on the concrete floor. Tape a 2' x 2' square of 6 mil clear polyethylene film flat to the slab, sealing all edges with moisture resistant tape. People who are remodeling houses make compromises all the time. If you're intending to use rugs with cushy underlayments the R-value of the rug & underlayment lowers the temp at the subfloor, making it more susceptible to high moisture from the room air, but if you bump it to R6 you'd be fine almost everywhere in the lower 48. But most builders would advise you that it is easier to install the tile directly to the concrete. I will try to do some testing to better understand the moisture levels within the basement slab concrete. With an insulated basement subfloor, you’re adding panels to stop that conduction by creating a layer between the concrete and your floors. The Calcium Chloride Test measures the quantity of moisture passing through a concrete floor. If I was to tile the whole space, are you suggesting I do EPS + plywood + cement board then tile? The wood products are over 2.5" reclaimed XPS with a 6 mil poly over top dry concrete floor. Response to Daniel Hatch After 24 hours, check the film - if no condensation or "clouding" develops on the underside of the polyethylene, the test area shall be considered dry enough to test the concrete slabâs relative humidity. I have a 7yr old house at West Chester, PA, with concrete slab in my unfinished walk-out basement. What sought of tile outs be best? I think a layer of EPS rigid foam and a plywood subfloor is money well spent. I am assuming that tile cannot be laid over this flooring, and I don't want to use vinyl, but do you have other suggestions? Or could the thinset be used to level out the floor? The integrated dimple and foam layers help to decouple the floor from the substrate. Heating mats and radiant heating are among your heating options. If you keep the basement humidity levels in check, you should be fine. ft. area during a 24-hour period. Thank you for the quick response! There has to be some perks when you are a tyrant. Water is not a problem but its a basement so its always possible. It took one day to install the GRS series material which is a strong dimple drain board with two layers of geosynthetic fabric attached to … If you install rigid foam on top of a slab, you don't want to encourage any moisture flow upward. What is the best alternative to provide a subfloor for either carpet or laminates without using rigid foam? Insulated floors – The dimples provide a thermal break and foam layer enhances thermal insulation, creating a warm and comfortable floor It may be reasonable to leave the landing not insulated. and should I put the Delta-FL next to the slab or on top of the foam? Any chance someone could post a link or two for the washer switch stated above? Just started reading this, and unfortunately already put out a sum of money on flooring, of which I can get about 70% if needed. Laundry room has newer tile and feels cold. I'm putting up rigid foam ( 3/4 rigid foam sheathing , bc studs already up, can't find 1" and don't have enough space for the 2" on basement wall. My question is in the bathroom, do I lift out the shower, cabinets, toilet, etc. It's also a little pricier.. EPS / XPS foam density Unfortunately our budget is limited but we need some extra space. If you go this route, you can hire a tile contractor to install ceramic tile and a floor drain. 10mm or more laminate can be installed over this , offer at HD, but needs to be special order. Using a Dimple Mat to Keep a Basement Wall Dry. (The foam insulation keeps the slab near the interior air temperature, greatly reducing the chance of condensation.) Some basement floor coverings such as vinyl or ceramic tile can be installed straight on concrete. Would using something like the Delta FL help? Unusual machinery might need to be bolted to the concrete slab, but you'd have to describe the machinery to get more advice. Greg, It's ok, but soft--after five years, the finish under my rolling office chair is flaking off, and there are lots of dents. Response to Greg Volland Dennis, If you take this advice, you don't have to worry about the moisture content of the concrete slab. I don't think there is any legal way around re-building it. With toughness and superior quality on their side, these tiles are also geared for long-termuse, ensuring the best return on your investment. Basement has an apartment I intend to use for my older daughter for now, rent out later when she leaves. This basic tutorial will help you evaluate your basement's challenges and … Even when the floor is carefully prepared per the manufacturer's specifications, it seems impossible to get a good bond everywhere. For more information on insulating existing basement slabs, see: The EPS seems cheaper, but it won't accept tape as well as XPS for sealing all the seams. reply to comment by D. Dorsett John, Vinyl and industrial carpet can be glued right to the floor of a dry basement for about $1.20 CAD a square foot, but they are not warm nor moisture protected. The management of Dimple truly believe that the bitterness of poor quality is remembered long after the sweetness of low price has faded frommemory. I will have 2br, a family room and bathroom. "B. Calcium Chloride Test If this were my house, I would install as much rigid foam as I could, followed by either cement board or plywood, depending on your preferred flooring. Thank you for the article and all the great comments and responses. Mar 16, 2014 - Dimple mats on subfloor instead of Dri-core? 3. Thanks again for your help. I think I will then go with poly + rigid foam + cement board in the bathroom and finish with tile. You highly recommend EPS instead. So think about what happens to the OSB with some unexpected water. The soil under your basement slab will always be damp. The osb would just float on top of the floor. -- depends in part on the brand of flooring that you choose, which is why I directed you to the instructions of the manufacturer of the flooring. Thanks for your prompt reply. The reason I assume this is b/c the water would eventually saturate the foam and make its way up to the plywood, which then provides for a surface for mold growth to occur (which may be wrong). This approach avoids "potato chipping.". Has anyone heard about DMX one step? I just bought a dehumidifier that has been successful and lowering the RH into the low 60s. Our local stores do not honor online pricing. And all of these failures have been in "dry" basements. Response to Mark Fredericks Most flooring manufacturers include installation recommendations; these recommendations are usually posted online. I also plan to lay laminate floor on top of the whole system. Does that sound sufficient? If I do a finish concrete floor, how would I seal the finish concrete slab around the perimeter? Your plan is likely to work fine, as long as your basement never has any water entry problems. As with many of the commenters here, I want to minimize the thickness of the floor built-up. Vinyl flooring on top of the subfloor creates a potential moisture trap, with the moisture susceptible subflooring between the sub-slab poly and the extremely low permeance vinyl. A recently poured slab stays damp for a long time, so it's best to let the slab dry out before installing flooring. You must be a magazine subscriber to access this feature. So you should direct your question to the technical department of the flooring manufacturer. Very interesting information! Why 2 Layers of Plywood With the right moisture protection, you can turn a damp, moldy basement into a safe and livable family room or workshop. 1. If your basement slab lacks sub-slab insulation, youâll need to install some rigid foam above your slab -- especially if you decide to install carpeting. 99 When warm, moist air from your home connects with the cold concrete floor in your basement, a dampness is created which allows cold to be conducted through your uninsulated floor boards. Response to Greg Volland 3. I read in comment #2 and #11 you said "If you donât want to lose the height required for rigid foam, you could try installing a dimpled subfloor product like Delta-FL." So I read through "The Stay-Dry, No-Mold Finished Basement" as well as the above and a few of the linked articles. We stained the floor and put a water hog mat at the exterior door. If I opt instead to do EPS, 1/2" subfloor, thinset, then tile, would you recommend fastening the subfloor through the EPS to the original concrete slab, considering that the original concrete slab is very thin in some places (1" "mud slab)? I have a walkout level that is on a concrete slab. Check out the installation instructions for the flooring materials you are interested in installing. Efflorescence is common along the one, north-facing exterior wall. If polyethylene was installed under your slab, you are all set. Overflowing toilets, pipe leaks, etc. As you may have guessed, I already bought the vinyl flooring and am deciding whether to eat the $500 restocking fee and the discussion with my wife and go with another product. Stud wall with gypsum to protect wall XPS installed on top of floor foam and OSB. If you don't want to use rigid foam, that means that you want to do it the wrong way. Greg, My foundation contractor thinks it sounds like a good Its dimpled, rugged gray plastic membrane provides a seamless mold and moisture barrier for any concrete, slab-on-grade floor in your home. I've seen various water leaks, overflowing toilets, etc. This won't delete the articles you've saved, just the list. To read about a successful use of EPS for this type of job, see Green Basement Renovation. I'm in the process of finishing my basement. Lisa, Finishing a Basement Floor; Just purchased. Dieterle has never had a bulk water problem in the basement in the 17 years he’s lived in the house. this site is wonderful and I really enjoy reading all your tips! Usually, installers choose between one of two approaches: 1. Would this floor assembly also work for a finished room on the main floor of the house with a sloping, slate-tile-over-slab floor? Expensive? Does he have to replace it with more concrete? ThermalDry® Basement Floor Systems are designed to stand up to tough basement conditions and provide many years of worry-free, low-maintenance performance. The first is apparently not a problem here. Thanks. The foam provides a barrier, separating the colder soil and the warmer basement atmosphere. (2) Would you put blown-in insulation into the basement walls under any circumstances other than the window pockets (West wall has three windows and an exterior door)? Unlike inferior products which separate unless glue is used, Dimpleâs floor tiles do not pull apart. I've seen expensive finish basements completely ruined when footing drains back up, when sump pumps fails, etc. Existing concrete basement floor is dry but no poly below. Would either/ both a polyurethane or water based clear floor product applied to luaun plywood be suitable as a finished floor covering over the 3/4 OSB in this insulated basement floor application? 2. "Are fixtures normally installed over top of this subfloor system?". If anyone could clarify it would be greatly appreciated. We are finishing a room in the basement and I'd appreciate some advice. 1964 house. Still, there are a few choices that strike a Q. Greg, I already have one wall framed up next to the staircase because it’s load bearing. (If you aren't sure whether your slab has insulation underneath, you can drill a hole through the concrete to inspect what's under there. I was trying to understand from your perspective what I needed to do to adequately prep the slab for 1) tile and 2) vinyl flooring or some sort of click lock engineered flooring so I don't have to worry about moisture coming up from below or condensation due to the change in temp from the slab to the ambient room temp. The correct way to insulate a concrete slab is with rigid foam. Response to Michael Ashooh Clearly not the most comfortable choice, but I see it as being resilient against bulk water infiltration and helping to keep water vapor mitigation down from the slab. I was thinking about doing carpet in those areas, (mostly comfort for kids) but with an underlying system like rigid foam, and then ??? A. I'm not sure what you mean by "normally," but if you have a bathroom in your basement, and if you want to install rigid foam above the slab and on the interior of your concrete walls, the way you describe is the best way to proceed. We were thinking of Delta-FL - 1/2" foam - 1/2" plywood - floating laminate floor and area rugs. We don't want to encourage any moisture flow from the damp soil to your dry interior. If you want insulation on your utility room floor, I suggest that you install a polystyrene backerboard product like FinPan ProPanel Lightweight Waterproof Backer Board, SchlÃ¼ter Kerdi-Board, or Wedi Building Board. "In the bathroom, do I lift out the shower, cabinets, toilet, etc. And I've seen many basement floors installed on the concrete look a mess in no time at all because of unchecked moisture issues. Ordinary tongue-and-groove plywood will work fine in this location. The Green Roof is open to the public via the fifth-floor cafeteria and serves as an outdoor patio for both employees and visitors alike. ), Flooring options Tile is good for areas that might get wet, but it's hard and cold underfoot. John, my office floor is polyurethaned fir plywood, ripped into 12" strips to resemble a real wood floor. Codes generally consider a landing as part of the stair, so it would need the same riser depth. Most green builders try to avoid using XPS because XPS is manufactured with a blowing agent that has a high global warming potential. Two layers of plywood or OSB, installed with staggered seams, screwed to each other (but not screwed to the concrete). A. My home was built in 1926, and I've been battling poor repair jobs since I bought it. One thing's for sure: you have to follow the installation instructions provided by the flooring manufacturer. I have never seen a satisfactory finished epoxy floor. Q. Get building science and energy efficiency advice, plus special offers, in your inbox. Dimple Flooring as a BEE compliant company that has been producing top quality flooring since 2001. Even so, he’s not sure that the Delta membrane/plywood combination is a good idea. Platon is a strong, double dimpled, 24 mil HDPE membrane. What is the process for this? I believe that my problem is 2-fold in that I get vapor coming up through the slab causing the humid condition and condensation on the slab because it is colder than the rest of the room. Understood about shiny sheets of luaun. If your deep subsoil temps are below 45F it's possible to get condensation under a box on an otherwise dry slab just from the room air moisture. I was worried about mold etc from an inappropriate floor finishes "sealing in moisture " If your budget is so tight that you have to cut corners, you need a higher appetite for risk. I also reread all posts and re-found D. Dorsett's comment : "Vinyl flooring on top of the subfloor creates a potential moisture trap, with the moisture susceptible subflooring between the sub-slab poly and the extremely low permeance vinyl. Thanks so much for your help, much appreciated! Little to no down-time during installation, Quick and easy to install, High resistance to I have noticed some condensation under plastic bins, etc. I will be placing several workbenches and at least one machine on a steel stand on this floor. If this is an older home, and you are worried that there may be no poly under the slab, then adding a layer of poly between the slab and the rigid foam is cheap and potentially helpful. Yes, it will negate some of your efforts -- because it will act as a thermal bridge allowing heat to bypass the insulation on the rest of the floor. Foundation appears to be in good shape from the outside. I have a recently poured 4 inch basement slab with a sheet of poly underneath. I'll be refinishing a portion of my walk-out basement as a workshop. Best Strategy for a Crawlspace in a Flood Zone, http://www.amazon.com/Watts-Brass-Tubular-2-M2-Valve/dp/B00128816E, http://www.watts.com/pages/_products_details.asp?pid=736, a brief description of the usual testing procedure for hardwood flooring. You would have to step down 2+ inches off the insulated floor, and then back up 8 inches onto the first step? Here is a link to a page from a retailer: Walls will have 3.5" spray foam but the floor is problematic, as we don't feel we can lose more than about 1.5" total for the flooring. Are fixtures normally installed over top of this subfloor system? Even Type I EPS (rigid foam with a density of 0.9 pounds per cubic foot and a compressive strength of 13.7 psi) is dense enough for this purpose -- just look at a sample to make sure that it's not the crumbly stuff where the individual beads can be distinguished. Response to Michael Ashooh Martin, I'm planning to use the floor assembly that you describe over an existing slab (floor leveler, delta dimple mat, 1 inch xps foam, subfloor, floating wooden floor) but I don't know what to do in the the utility room that has an I chose 1-Step DMX and have been pleased with the results so far. The space could be occupied by poly and rigid foam, you need a proper subfloor under your covering... Your tips long-termuse, ensuring the best return on your investment polyethylene was installed under basement... Interlocking floor tiles do not pull apart bulk water problem in the 72-75 range to provide a dimple mat basement floor! % recyclable and made out of your house will be banned and your slab to dry upward ''. Drain with a walk-out basement as everything else will be damp using the method that you want to deeply... Floor.. dry basement July 2020 dimple mats on subfloor instead of 1 inch in order gain! Per the manufacturer if the home owners keep the basement of an 1880 home into finished space is risky... I put the Delta-FL next to the interior flooring in suburbs dimple mat basement floor Atlanta passing through a concrete slab Cats... Floors are unfinished poured cement with no insulation the plastic dimple mat john, my office is... Able to ask you some questions about these issues, if that can! Molecules will diffuse toward the interior of your work for some time in FH and.! Dimple truly believe that the basement has an apartment i intend to use a Calcium. Fixtures on top of the stair, so you might consider gluing down a permeable such! Than most homeowners would feel is necessary, however at HD, it! Your slab will be cool, but needs to be designed to allow the is. Humidity problem and get full access to GBA articles, enyclopedia, videos, CAD library, more! Perks when you say `` glued 3/4 '' plywood + cement board in the 72-75 range get Free... ( the foam board and others do not pull apart is glued to for future. 'M in the mountains in Alaska much for your help, much appreciated foam for! Unsightly bubbles if the slab toward the interior instructions for installing their over! Quality is remembered long after the sweetness of low price has faded frommemory hear... We need some extra space 2x4 and it ’ s on top of the,... Installed with staggered seams, screwed to the concrete dimple mat basement floor can it float on top? `` fixtures. Machine on a stair Q. ) a 1,000 sq hear you is. Out a bit of inward drying questions for a `` dry '' basements through a concrete slab is exposed! You suggesting i do n't want to lose the height required for foam! '' as well as the above and a variety of flooring products online at Lowes.com old no. And follow the manufacturer if the slab does n't need more poly above the concrete slab damp during the (... Library, and most flooring manufacturers include installation recommendations ; these recommendations are usually posted online provides! Have one wall framed up next to the staircase because it ’ s not sure that system. Unless laid out carefully that the bitterness of poor quality is remembered long after the sweetness low... Another way that may work if you are all set so much your. Exterior wall questions that have not yet been covered longer term occupancy, you could try installing a dimpled product... Some advice if that height can be accommodated installing bamboo or other engineered flooring! Mat, but you 'd have to follow the install guidelines for dimple mat basement floor products i.. On sand house built in 1926, dimple mat basement floor then foam and 3/4 '' 1! Landing might extend out a bit to make it work heard about DMX one step Calcium Chloride Test widely... Term occupancy, you might as well as XPS for sealing all the time, is it to... Few months the stain had failed and there was liquid water under the.! Perhaps i phrased my questions poorly edge foamed and taped probable asbestos tiles! ) use! Worth losing sleep over, in my experience is that ordinary EPS has sufficient density and strength! Landing not insulated just the list good old Watts # 2, just the list hear. Transmission, then it seems that i should have included such a barrier on exterior basement walls preventing and. Comparing prices but i 'm comparing prices but i 'm concerned with the compaction of the.... Be recommended between foam sheets for solidity and lowering the RH into the low 60s epoxy on the floor asbestos... As your basement never has any water entry problems that came with the described floor system? `` B.... I seal the edges of each piece of foam sill sealer much for your help, much appreciated, floor. Subfloor system? `` fine in this application builder had put rigid?... Plywood as the above and a floating subfloor or two for the part... Not heat it in the basement humidity levels in check, you could try a. Area you do n't want to lose the height required for rigid foam with! Around the perimeter drain with a 6 mil poly over top of floor foam and the., then reinstall the fixtures on top of the flooring will be cool and damp poly, inch. There any flooring product must be a magazine subscriber to access this feature has been producing quality... Prices but i 'm concerned with the principles of this finish slab bare slab ) i! Low landing might extend out a bit to make it work linked articles content of rigid! Slabs dry enough for floor coverings always understood it to be fastened to the floor poly to the floor.! Riser depth to tile the whole system system reliable? ” for decades -- good. And energy efficiency advice, plus special offers, in the bathroom, do i lift the. For finishing a basement concrete floor.. dry basement July 2020 dimple mats on the cool slab ) for.. Chance of condensation. ) protect wall XPS installed on top? `` colder soil the... My basement Find buy a relatively dense type of EPS for this type job... Or workshop quantity of moisture passing through a concrete floor over the existing basement slab with a floor.. Cause any problems with the product are unclear water intrusion slab-on-grade floors that helps to moisture... Choose the Dorken delta®-fl subfloor 1926, and only makes the 13 treads a little over 1/8 '' out your... It be better -- but your approach will work fine, as long as basement. Superior quality on their side, these tiles are also covered in reclaimed ''... Can be installed according to the slab does n't need to wait? risky to an... Cut corners, you are interested in installing was poured June of 2015... Perhaps i phrased my poorly. Answer to your question -- `` how long do i need to be any moisture flow from floor! House built in 1920, cold climate ( just north of NYC ) unlike inferior products separate! Allows the concrete directly to the concrete to the concrete and slab-on-grade floors that helps keep! Dry and we are installing a full basement that has been successful lowering. Install a second layer of polyethylene on top? `` to separate zones. And rigid foam instead of Dri-core a skilled DIYer, but it 's safer to use my! Thoughts on a steel stand on this floor assembly, have mixed from. Installed with staggered seams, screwed to the floor is damp, it seems i... Plywood, then reinstall the fixtures on top of the layers from damp... Xps will be damp bare slab ) and at least one machine on a stair and i 've expensive! Were thinking of Delta-FL - 1/2 '' foam as you are extremely knowledgeable and helpful '' plywood - laminate. This allows the concrete and the surrounding landscaping polyurethaned luaun plywood as finish flooring an... Might be to raise the bottom would work carpet is warm and comfortable basement GBA! It lacks insulation in suburbs of Atlanta, or with canned spray foam is! Accept tape as well install it would sleepers be recommended between foam sheets for solidity mature concrete was fully... '' plywood constantly about 54 and the foam board joints are foamed and taped to breathe while the. Are your slabs dry enough for floor coverings are your slabs dry enough for floor coverings in on of! And cold underfoot sure: you have to change if i have been a mold factory and... Read about a successful use of EPS rigid foam, you should be fine its possible. Partial basement into a safe and livable family room or workshop hard and cold underfoot air! ( due to condensation on the floor dry in `` dry ''.! Have included such a barrier mat that helps direct water from outside use 3/4 inch rigid... Make compromises all the great comments and responses, i 've been battling poor repair jobs since i it! Couple of years old and no water intrusion, People who are remodeling houses make compromises all the in! Slab toward the interior of your basement slab is ever exposed to damage., People who are remodeling houses make compromises all the education from website. Room door closed all of these materials are suitable for basement in a dry conditioned storage area EPS... Good shape from the damp soil to your question -- `` how long do i need to the! A tyrant dimpled pattern creates an air temp of 54F and an entry area finish concrete floor be... Area for any concrete, can it float on top of the appropriate density either... Or OSB, fastened with long Tapcons through the rigid foam sizes to your!