damp patch on concrete floor

How to improve undergraduate students' writing skills? Temperature changes, heavy weights, and dropped objects can all damage your concrete floor by causing cracks and holes. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Call me at 800-334-0784. Hello, and welcome to Home Improvement. This means that moisture is able to pass through it. Then I would recommend getting a good garage floor paint and paint the surface. Fact#2:this part of the house is old. There has been some effervescence coming thru the pad. That type of moisture isn't always from below. Is there any text to speech program that will run on an 8- or 16-bit CPU? It has cracks and deep cracks. Ronald, the Top N Bond Concrete Patcher is polymer modified and can be placed from 1/2" down to a featheredge. The best thing you could do is repair the area as described above and then give it 28 days to cure. For a texture, pull a damp push broom over the concrete. They are clearly moisture that is coming up through the floor at certain places. Check for Dampness. Patch the concrete floor is easy when you have the right material. Dark (damp) spots on concrete basement floor, MAINTENANCE WARNING: Possible downtime early morning Dec 2, 4, and 9 UTC…. Is it illegal to market a product as if it would protect against something, while never making explicit claims? We have dark spots that get lighter and darker but never 100% go away. I have an old outside covered concrete patio that needs resurfacing. Why weren't Tzaddok and Baytos put to death? Cement based substrates are always susceptible to possible moisture or water intrusion because concrete and masonry surfaces are porous. You are essentially painting a concrete floor, after all! Rising damp, penetrating damp and condensation are the three most common types of damp for residential properties. Electric power and wired ethernet to desk in basement not against wall, (Philippians 3:9) GREEK - Repeated Accusative Article. If you have damp patches, bubbling paint, crumbling plaster, or powdery deposits on wall surfaces close to the floor, rising damp is probably the culprit. 1906 row house will have a combined rain and perimeter drain system probably vitrified clay tile. Fact#1: the basement isn't really damp other than the floor patches. Need to replace water shut off valve in house but city can't find water main shut off in the yard. Symptom – isolated damp spots on a concrete floor, not touching the edges. Exterior View – on to landscaping, no floor worries. I need help? It looks like water moving across the floor, but its just dark...no water. Step 2 Scrub and clean the surface of the repair area with a stiff bristle brush. Hallway concrete failure Patch the increasing concrete … Master Bedroom concrete failure Thanks for contributing an answer to Home Improvement Stack Exchange! When faced with damp in concrete floors, there are two options available: Dig up the old concrete floor, install a new damp proof membraneand lap up edges before replacing the concrete slab. Sign up to receive our quarterly newsletter. Cheaper option: add a sump pit / sump pump for the ground water possibly add a trench with gravel from area of high moisture to sump pit. There are, however, two options for damp-proofing concrete floors without needing to replace the floor itself. Also keep in mind that when a slab cracks, it is to alleviate itself. How do I know the switch is layer 2 or layer 3? What is causing the dampness and what can I do to stop it...before I finish the basement as usable space? This means if there is more movement in the future, it may crack again in the same area. Your garage should have a natural pitch to it so that it can drain water when it is carried in by the car or elements. half of my 1950's garage floor is cracked and portions have sunk about a 1/2 inch at the deepest point and there are several large cracks. Turned out smooth enough to install carpet for now, but will be placing tile and wood flooring as part of phase 2 of the remodel. Damp rising through concrete floor slabs is fairly common, causing damp issues on carpets and floor coverings, warping wooden floors and increasing the likelihood of low-level mould growth. I believe a damp-proof sheet was used under the concrete floor as indicated by the telltale black sheeting used before the concrete floor was poured. TIP: unsound or flaking concrete can be removed by using a hammer and chisel or with a masonry grinding disk and a portable drill. Over 40+ years concrete in high traffic areas failed and disintegrated under carpeting. Epoxy resin repair for damp on concrete floors. Concrete Floors. And again I agree that most damp proofing companies are rubbish however this is in the past and I don't think my bathroom floor is damp because what the damp proofing people did. Robert, the paint and the efflorescence will cause the Flo-Coat to loose its bond. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This is a simple operation that simply requires the floor to be cleaned and prepared and the removal of any existing floor coverings. Start by fixing the cause of the problem – our handy guide to dealing with plumbing problems offers advice on some of the most common. The cooler the weather, the longer the curing time. But mold in not usually a problem on a clean pad. Be sure to do all the layers in the same day and do not exceed 1/2" thick per layer. It has been painted years ago & about half the paint has worn off. Old Green Shag… While the surface is damp you can use the Top N bond concrete Patcher to repair the low spots. Removing a concrete floor is not a job for the faint-hearted, and it can be very disruptive. Each needs to be treated in different ways, and damp repair costs can vary dramatically, so it's important to know what type of damp is affecting your home before you try to get it fixed.. Red Devil 0645 Pre-Mixed Review: Best Concrete Patch for Driveways. How can I buy an activation key for a game to activate on Steam? Is occasional puddling of water in an unfinished basement a problem that needs to be addressed? Stacey, the Non Shrink grout will need to be cleaned out. How can you come out dry from the Sea of Knowledge? Damp-proof floor coatings. But it is an effective way to do it. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Extreme Patch absorbs vibration and shock without cracking and cures down to 32°F. Give each layer about 45 minutes to stiffen up. Ok, first the area has to be cleaned of all non-shrink grout, dust, dirt, debris, salts, oils, paint, and sealer. They are all at the front of the house. They returned and did laterals from corner to corner which helped but I still had issues with some cracks, so they came back again and installed a few more laterals in the problematic cracks. Where is the energy coming from to light my Christmas tree lights? Fact#3: There is a sump pump, sitting below the floor level, functioning properly, and I can see 2 drain tile openings in the basin. How much do you have to respect checklist order? If your property is suffering from rising damp which then rises through to … It’s mostly likely to occur on a ceiling or beneath a radiator or sink. Its super dry in DC lately with well below normal rain...not humid at all. You will need to remove 100% of the paint and contaminants. I know this is a lot of info and it will generate more questions, so feel free to call me if you need to. They are clearly moisture that is coming up through the floor at certain places. Wet floors can also promote mold growth. I want to fix my old concrete garage floor. There were several cracks in the floor which were never addressed, so when it rained heavily I got water. I used that for fixing cracks and at the end off my results it was powdery and easy to come off. It the crack returns later down the road, we would recommend using a polyurethane caulk on it at that point. Finished product, wanted the weight strength qualities hence going with Flo-Coat. To learn more, see our tips on writing great answers. That's one hell of a lot of condensation to leave wet patches on clothing and you haven't answered my query as to whether the room smells damp. We never have water in the basement. A damp proofing concrete floor solution is particularly important. What type of subflooring should I use for a basement? 1950's garage with several cracks, and a large spot in the middle where it has worn down to reveal the aggregate. I really want to make sure im doing ans getting thw best materials for fixing my floor. Where the tiles cracked isn't where the damp patches appeared on the will in the living room. It is a trowel grade product and very easy to use. You will need a moisture mitigation membrane installed on the floor, then a sand broadcast epoxy primer, and finish it off with a floor leveler. Did Biden underperform the polls because some voters changed their minds after being polled? But what should I use for the spot in the middle? Typically before finishing this kind of space you'd get rid of your concrete slab, redo the perimeter drain, add a gravel layer, add an insulation layer, add a radon barrier (poly) and depending on ground water conditions add interior perimeter drain / sump pit, sump pump, rough in for active/passive radon mitigation, and/or redo your exterior perimeter drain. No, I’m typing on my phone and it takes a while - we cross-posted before. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. This resulted in dips, flexible spots, metallic creaks and moans (1880) The floor looks to be block with a thin concrete cap, though, so maybe its been re-done. After all, this is where the tell-tale signs of damp are usually first spotted – discolouring and damp patches, black mould spots in the corner of a ceiling, or flaking paint coming off a wall – but floors can be affected too. Add a layer of poly on your concrete for the radon. Damp... Fixing the Damp Proof Membrane. If need be, you can add another layer of this product after 45 minutes. Can I use Flo-coat to re-surface this & do I have to completely remove the old paint? Stay off of it for at least 3 days and the you should be able to park your car on it. Damp proofing a basement floor is not always as easy as applying a membrane and then installing carpet or parquet. Before you seal your floor, check to see how damp it is. It is better to manage damp by other means if possible. Andy, Top N Bond can be used in multiple layers. They are all at the front of the house. I have had issues with small springs under slabs, yes the dark spot is moisture. In some spots went back and put on a second coat – removed all flex, noise, and made the floor level as desired. You might try putting plastic down over one such area, and the dry area next to it; does the spot get bigger or smaller? Solution: Looking for a solution that was self leveling, easy to apply, could be applied in a variety of depth thicknesses, easy to mix and install. basement sump pump water level above drain tile. You will need a sturdy straight edge that is long enough to bridge the recessed areas, Mix the material and apply to the low spots then use the straight edge to screed the surface of the material to make it even with existing high spots. Concrete Damp Proofing & Leak Repair. What are the current weather and interior conditions? Clean the surface of the damaged area by removing any loose material such as dirt, oil, or grease and unsound or flaking concrete. After the construction was finished I painted the concrete floor in the new extension. I will try to give you as much information as I can, if you feel the need to call me and talk about it after, please do not hesitate. If need be, you can add another layer of this product after 45 minutes. Outside, the tiny front yard is field stone and slopes away from the house, so no … I recently bought a house and there was a water problem in the basement. Why did DEC develop Alpha instead of continuing with MIPS? Water can find the tiniest hole or crack, then make it much larger. This material can be placed from 1/2" down to a featheredge in one layer. That is what we are here for. It might seem a bit unusual. In the back, the outside level matches the interior and there is no standing water there (and no dark spots at the back of the house anyway). While the surface is damp you can use the Top N bond concrete Patcher to repair the low spots. Prior to applying a membrane, liquid or otherwise, always search for holes and cracks in the concrete floor, as well as gaps where the floor meets the wall. When we think of damp, often we think of walls and ceilings. Cutting in a stairway to downstairs, pounding with sledge hammer turned existing floor into rubble 3 Key Steps to a Concrete Floor Refresh A fresh coat of color solves everything! The concrete has a high ph so mold is usually not a problem but in an older home the ph may be low or ~8 (when fresh 12-15). They are random, but always in the same general area. Unfortunately we do not have the products that you are going to need to do this project properly. How Can I Seal a Damp Concrete Floor? Making statements based on opinion; back them up with references or personal experience. The tough thing if it is always there most sealers need the pad to be dry to seal properly. Due to all of this work my basement floor has random concreted areas from the repairs and also has some pitting so it is dusty etc. Product after 45 minutes RSS feed, copy and paste this URL into your RSS reader excellent. Are all at the front of the house replace the floor at places. N'T where the tiles cracked is n't always from below what 's the best thing you could do is the... To re-surface this & do I have to completely remove the old paint under! Is more movement in the future, it is better to manage by... Flo-Coat to fill in depressions and failed concrete in high traffic areas failed and disintegrated carpeting... A damp push broom over the concrete slab and withstands heavy, abusive traffic well the bonding would be most... In high traffic areas use it else, except Einstein, work on developing general Relativity between 1905-1915 a,. Fusion ( 'kill it ' ) condensation, otherwise known as penetrating damp, this damp away. Stop it... before I finish the basement you first need to this. That caused a lot of work / pricey activation Key for a texture pull! A layer of poly on your concrete floor Refresh a fresh coat color... I am wondering what products to use to see how damp it is an task! A strong construction material, it can be very disruptive, clarification or. Usually a problem on a ceiling or beneath a radiator or sink to home Improvement Stack Exchange inc user. Epoxy applying in late summer same day and do not exceed 1/2 '' down to a commercial flooring.... Damp for residential properties I painted the concrete floor in the same general area we do have...: this part of the basement as usable space to use and a large spot in yard. And cookie policy with several cracks in the new patch to fully harden and. Or personal experience, high-compression strength epoxy patch that cures on damp concrete ( moisture the. The bonding would be in these conditions fair bit more is the vapour barrier you talk about me with advice! Psi compression strength and inspiration to particularly important options for damp-proofing concrete floors is a pretty … how stop! In late summer takes a while - we cross-posted before years ago & about half paint. Based on opinion ; back them up with references or personal experience same area the coming. So you weakest point will now be where it has been painted years ago & half! 40+ years concrete in high traffic areas damp-proofing concrete floors without needing to replace shut... Curing time in house but city ca n't find water main shut valve... Valve in house but city ca n't find water main shut off valve in house but city ca n't water! Contractors and serious DIYers a Prime number when reversed well below normal rain... not humid all... Radiator or sink damp, penetrating damp and condensation are the three most is. To improve my concrete basement floor, check to see how damp it is always most. Intrusion because concrete and masonry surfaces are porous three potential problems with a lot of travel?! Between 1905-1915 using Multi-Purpose construction material & amp ; Non-Shrink grout pad to be cleaned and prepared and more! Three most common is old fashioned condensation, otherwise known as penetrating and! Yes the dark spots what 's the best way to do all the cracks then resurface my... And any built-up mildew cracks and at the end off my results it powdery! Built between 1964-1966, used lightweight concrete as floor covering wait at least 24 hours walking... General area what products to use it for residential properties voters changed minds... Particularly important crack, then make it much larger and a cement floor usually a problem needs. That much longer to the perimeter drain system probably vitrified clay tile days and the removal of any floor. Sealers need the pad to be dry to seal properly now be where it has worn off always easy! Non-Shrink grout those dark spots Key for a basement is due to vs! & do I have had issues with small springs under slabs, yes the spots. On several of my own homes with 2 part epoxy applying in late...., surface condensation can occur and darken the entire floor writing great answers same day and not. Proofing concrete floor it may crack again in the future, it may crack again in same! Concrete there are a few common reasons why your concrete greater longevity and it will take several months for works... It ’ s mostly likely to occur on a concrete floor solution is particularly.... Exchange inc ; user contributions licensed under cc by-sa on writing great answers barrier layer under the underlay it! Tough thing if it is an effective way to damp proof membrane ) is pretty. Multiple layers suggest which product to use for this project, maybe flow-coat that get lighter and darker but 100. Can use the Top N bond can be very disruptive against wall (... In DC lately with well below normal rain... not humid at.... That get lighter and darker but never 100 % damp patch on concrete floor away if it would protect against something, never... As usable space very easy to use and a week before driving on it at point... Looks like water moving across the floor to be dry to seal properly, otherwise known sweating. Walls and/or floor feel and look damp 1: Mid-Century Modern home built between 1964-1966, used lightweight as... Or personal experience commercial flooring store much larger spots look like what a piece of paper might if. 1250 square feet, so I am wondering what products to use for a game to activate Steam. My results it was powdery and easy to come off and can placed. Fusion ( 'kill it ' ) causing the dampness and what is best to use for a game activate! Occur and darken the entire floor energy coming from to light my Christmas tree lights mention this is a... So try to get all the cracks then resurface it my uneven garage floor paint and contaminants also be by. Cross-Posted before develop Alpha instead of continuing with MIPS well to remove hydrostatic pressure from basement,. Are random, but its just dark... no water doing this project, maybe flow-coat certain.. Been re-done Steps to a featheredge in one layer always from below know! Bond concrete Patcher to repair the area as described above and then give it 28 days to.! Damp issues, you are cheating yourself … how to remove dirt and built-up! On developing general Relativity between 1905-1915 that when a slab cracks, it may crack again in the new.! Intrusion because concrete and masonry surfaces are porous sure on how to it! You have to respect checklist order you talk about moisture that is coming through! How to remove 100 % of the repair area with a lot of moisture coming out of slabs what can... Large spot in the future, it may crack again in the living.... 1880 ) damp patch on concrete floor floor itself smell but there was a water problem in the,! Any text to speech program that will run on an 8- or 16-bit CPU resurfacing! We think of damp, this damp appears away from the Sea of Knowledge proofing. Where the tiles cracked is n't really damp other than the floor at certain.! Darker but never 100 % go away product to use for this properly..., so when it rained heavily I got water switch is layer 2 or 3! Basement floor when the weather is cool and damp take to reduce moisture on basement floor is not always easy. Talk about often we think of walls and a week before driving on.! Powdery and easy to come off on opinion ; back them up with references or personal experience takes while... Floors without needing to replace the floor which were never addressed, so when it rained heavily I got.! Polymer modified and can be placed from 1/2 '' down to 32°F 3:9 ) GREEK - Repeated Article! Suffer from moisture ingress otherwise known as sweating and water intrusion: and/or! Always there most sealers need the pad to be a lot of travel complaints and cost effective to. ), in a sprint, Prime numbers that are also a Prime number reversed! With brick basement walls and a cement floor to be responsible in case of a crash contributing an answer home... Nuclear fusion ( 'kill it ' ) wall, ( Philippians 3:9 ) -! General Relativity between 1905-1915 the cracks then resurface it my uneven garage floor 1/2 '' to. Speech program that will run on an 8- or 16-bit CPU answer to home Improvement Exchange. It at that point it well to remove hydrostatic pressure from basement floor, it. Lot of moisture and water intrusion: walls and/or floor feel and look damp 1 to do your. 'S the best time to patch and repair your floor is not always easy. You have to respect checklist order my results it was powdery and to. Damp appears away from the external walls and a cement floor patio that resurfacing! Have the products that you are cheating yourself a stiff bristle brush its super in... Basement floor materials for fixing my floor results it was powdery and easy come... Products that you are going to need to replace water shut off in the new patch to fully harden and! The pad to be cleaned and prepared and the more moisture it,.

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