Calcium chloride or other salt substitute should be fine, but salt will deteriorate mortar. I was almost sold on polymeric sand, due to the size of some of the joints im going to have..but read your blog. Protect the surrounding edges from the binding solution by taping paper over the area or using greased wood sticks around the edge. hi, I just finished building a house with permeable driveway. I used screenings to fill in between the joints. You can check for drainage issues by spraying the pea gravel with water until it is soaked. Three periphery sides have a 2 reinforced cement border to keep everything in place (the 4th side is up against the house). 87880917 4 yr. ago. We want to go with a flagstone patio around the pool. Step 1 - Prepare the Patio Measure the area of your patio that contains the pea gravel, and use this measurement to order the correct amount of binding solution material needed. 4. by Devin | May 9, 2013 | how-to flagstone articles | 270 comments, Devin Devine, traveling stone artist based out of North East Pennsylvania. You cant really hide the edge thoughso dont bother trying to hide it, but go with an edge that you like the look of. I would not recommend sand for in between flagstone joints. When selecting your base rock, make sure to pick rough gravel that is large enough to allow the pointy edges to interlock and heavy enough not to be washed away in a storm. Id make the stones fit well first (assuming that the polymeric sand users left big gaps like they usually do), with a half inch (or so) gap between the stones. Then we mixed a ratio of 2 parts mortar to 1 part pea gravel. I will check out your website further. Im glad I read this and plan to steer well clear of polymeric sand. You never joint with mortar in a dry laid scenario. Thanks for saving me from the poly sand! Check the weather, you will need two days of sun and dry weather. You are so kind to answer so quickly and for the method link. Do I nned to re-apply screening? If its built upon concrete, then it should be repaired with mortar. Allow the stone duts to dry and bond then come back use a non-shrinking exterior grout bewteen the flagstones..sound good?.Thanks for any input, Frank. First of all know that at this point, any means to clean off the stones will likely destroy the joints that youve installed. 22 Reviews. We had flagstones placed in our outdoor shower about 5 years ago. Sigh! Yes, Ive often read about concerns regarding limestone dust in hardscapesmainly, that limestone dust can and does hold water longer than sand or decomposed granite. I'm putting in a new patio, and we decided to space the pavers about 2 inches apart and fill the gaps with pea gravel, mostly to hide how poorly we leveled the subbase. We were thinking of doing gravel for the joints because it doesnt rain often in Laredo, but when it does it pours! So adding an inch or two of fineswill just fill the void spaces in between the 1/2 to 1/3 rounded gravel. I keep telling people, if you put your flagstone on sand, then what youre doing is inviting ants unto your patio! I recently purchased a house (last June), and now I have been noticing that the sand between my flagstones is either, sinking, very easy to push down (as if there is a big void under neath the stones or in between the stones), and in some cases small mounds of sand appeared (on top of the stones) with a small crack/hole exposed between the stones. Get the cement to a dry-sish mashed potato-like consistency and fill the joint, pressing down firmly. I was wondering if it would be feasible to make 4'x4' "pavers" with quick crete topped with pea gravel---or to mix a layer over the pea gravel as a stabilizer. Again, like with the bricks they left gaps that are too large, and probably filled with a material that is too small. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Easier to install than poly sandno staining acrylic haze to worry about. Id use a 4 angle grinder with a diamond blade, grind out the cement around the cracks. Pea gravel is a kind of rock gravel that's usually characterized as small and rounded. Stone thicknesses range from 1 1/4 2 1/4. Ill keep trying to keep the fit tight and corners flat. Heres the quick story: Ive reclaimed enough of the small pieces from borders created by the previous owner. It does not get dug out by ants, weeds cant grow through it and it does not wash out. I prefer to keep them tighter, but 2 is doable. Purchase screenings at a landscape supply store or at a quarry. They build their homes, hollow out spaces beneath the stonesthe little sand piles youve been findingthe ants will sometimes leave piles like that all over a patiolike little anthills. Can I still use the screening and will moss grow in it? I use it on every paver job now, but can't imagine using it on a gravel surface.Bear, exactlylooks like crappolalooks like the base to put gravel over..so there we go againlolheyI have an ideaput hot tar over it and drop yer gravel over thatI think someone already invented thatlol. The pea gravel is stable if it does not move when stepped upon and does not feel slippery. Void formsstone sinkssolid joint sits above voidjoint cracks. Any suggestions to avoid this? You will have to reapply at some point. Im hoping you might recommend something. HATED IT!!! Stone dust is, well, basically sand and putting an acrylic binder on top of it is not a good idea. When using pea gravel for a hard surface patio or similar area, you need to use a binding solution. Mostly, it seems just to have soil between the stones sometimes with moss. The patio comes off the basement door and is surround on three sides by 4-5 retaining walls, and had a 4 drain in the pave patioit was sinking especially around the drain. Where to buy screenings for base and joint fillings in North Jersey and whats the brand name of the product. Marbles could be neatsince they might not stay in place, neatly between the flagstone quite as well as the screenings, Id consider using the marbles more like an inlay.like use the screenings for most of the joints, then create a design with the marbles. This system is somewhat self-healing. But, like i said, if you have stepping stones 4 to 8 apart or something, then soil and grass seed (or whatever youre growing) should be fine. So there you go: Im 2 years late responding, but I hooked you up with a secret recipe, which I have used on my more artistic dry laid stone patios: https://www.devineescapes.com/artistic-flagstone-patios/. Video of the Day. Early in my flagstone patio career I used to try and keep the screenings in my flagstone joints as close to level with the stones as possible, but with foot traffic, wind and rain, the joints seem to naturally level off to around an average of one eighth of an inch shy of flush with the flagstone.. If you have cold winters where the ground freezes, then 6 inches compacted base (4 inches is usually enough, provided compaction and grading are handled properly). My husband and I are looking to install a flagstone patio in Laredo Texas. Alternatively, i am considering taking the sand out and planting thyme, seedum, etc. Given how unpleasant it is to walk on screenings with bare feet, what would your suggestion be for spaces that are greater than 3? I particularly appreciate the advice on killing any weeds that get in there with hot water, vinegar or pulling them by hand vs using Round UP. Theres also an adjoining bluestone path with 2 joints, but Ive used mulch for those and pounded it in; seems to be holding although it gets weedy of course. I dont want water to absorb between the pavers so water will run off to the street. Patio I built in Northern California circa 2018. Such joints will fail within a few years. Sounds like a winner, right? Quick question: in cases where the polymeric sand has left a white haze on the slate as you mentioned, what is the best way to remove the haze? But I get ityoure suggestion youd just seal the mortar itself. I do not recommend poly sand. does polymeric come in colors? This will allow you to know where you should tamp down the pea gravel more. Ixnay on the oplypay urethane-ay and-say,okay? Thats not a problem for stone dust, whereas poly sand, in a shifty situation, will crack up and be a problem. Life happens. The best way to predict your future is to create it. Do you have pea gravel? And be sure to not overfill your jointsthe stone dust/DG should be a bit shy of the tops of your flagstones. When you re-lay you need to fit them bricks tighter. A professional, who will talk with you on the phone, and walk you through the process of laying flagstone, repairing flagstone, or any other such situation? I feel like its not a good option to use for high traffic and a lot of patio furniture with legs that can go in between the cracks. Good, Im glad my articles helped you make the right call about polymeric sand . I really don't know what I'm doing so any tips are appreciated. Use too much water and the binder, an acrylic glue, washes out and leaves a nasty haze all over your carefully laid flagstone. They're sold as soil stabilizers (type that into google and settle in), but the principle is the same. But there is a limestome quarry outside of malvern, and Id bet their still producing limestone screenings. In short, the sand used is too light of a material and washes away too easily. Then maybe Id write an article and update it once a year, reporting on how it performs and how to best maintain it. Do I wet the surface and joints first and then broom in the dust; do I broom it in dry, blow off the excess and wet-broom the surface and re-apply as needed, etc.? Use a broom to fill gaps. It became the neighborhood cat litter box yuck! After excavating the area, pour in about three inches of a base layer of crushed rock. (P.S. Or plan a ground cover of some type. Ive created a 15 x 15 flagstone patio using 1.5-2.5 mostly flat, some irregular stones. Should I just wait until it dries out? Once all the stones are laid, sweep more screenings into the joints. Ants love sand, sand washes out more easily than stone dust, so Id remove the sand and replace with stone dust. Effort PA. Southern Poconos. Maybe a channel drain, along the wall furthest from the house? He only swept sand in between the cracks. Bu the crumbly dry method works well, you just have to spend some time cleaning off the tops of the stone, whereas the powdery-dry method involves pretty much zero clean-up. Driveway apron of cobblestones, dry laid over solid concrete base; cobbles all shifting around since whatever material originally between is gone. So, I put in 3/4" crushed rock, but only after searching around and finding a place that sold some that had a nice color (a mix of browns and earth tones along with the gray). Their concrete was too wet and/or they overworked it, troweled it too much and brought too much water to the surface. Sorry. Thank you. Were actually fixing a poorly done patio for a friend. Thanks for such a thorough reply. Cheers! Tamp the base rock until it does not move, as this supports the pea gravel. Add the proper amount of cement and water and mix well by some mechanical means, smooth to grade and pack it. Theres white screeningswhich is more a cream/off white color. Like all new things, it takes a minute before you realize the long term results. We are a team of passionate homeowners, home improvement pros, and DIY enthusiasts who enjoy sharing home improvement, housekeeping, decorating, and more with other homeowners! Ive never heard of anything like that. But yeah, Id try and d-limonene it, maybe try a careful pass with a pressure washer. Would prefer to be able to pressure wash is once in a while, so does stone dust make it impossible to pressure wash them? Ive seen stone dust joint stabilizers are being sold, but that might be as bad as poly sand. It should be evenly distributed across the surface and cleared of all debris, such as rocks, sticks, roots, and weeds. Remove anything organic before you begin work to stabilize the driveway, or, as the organic materials break down, the gravel will begin to shift. He also suggested going to a cement company and asking about their sand. Good luck with your flagstone project I hope that my articles are helpful. Unfortunately it's about 3" deep! Re-read the article please Actually, Ill go back and edit, put a few words in bold and make it a bit more clear. Anywayssince you just used local soil, and built it yourself rather than hiring a mason, we can pretty much just say Well, it may not be perfect, but its got heart!. Hi Devin. How much foot traffic are we expecting? Thank you for the prompt response. Also on my jobs the joints are maybe an inch wide, or less.Ive seen other hardscapes where the flagstones have 3 gaps between themtry keeping anything in there. I wanted the stone far apart so that I could plant grass and ground covering all around. Id love to find something natural in a deep blu to go with the bluestone. The best way to stabilize pea gravel for walkways or driveways is to see that you install it properly. It just dissuaded me from polymeric sand. My husband and I were considering using the polymeric sand in our new flagstone patio but my gut was telling me to go with the natural product. Sand was also used in between bricks as 1/8 gap fill. Might be able to spread it around and then water it with a sprinkler to activate its stickiness. I dont know where you live or what sort of tile you are using, so i cant be more specific than that. Any suggestions on how to keep it from washing downhill? Once the final coat is dried, test the pea gravel for stability. look at Landscaping Projects 2007, Favourite ROSES We Grow albums. I live in Texas with the soil is mixed clay and moves a lot. I re-rake the kennels every few days to keep the coverage even. I think that any crushed stone with a good variety of sizes would work. I was very worried about the hazing of the stone from using Polymetric sand. Screenings AKA breeze, will stay putso long as the joints are not too wide, the patio is graded properly, and you dont overfill the joints. I plan on using a thicker layer of concrete sand below the stone, (up to six inches); thick enough so that it accommodates the irregular thickness, and providing me a flat stone surface on top. Love the info. It will crack. There were two erosion spots that created 4 low spots. Pretty much all of my DIY consultation customers complete their patios, with the final product having much wider joints than I usually allowand then, out in california its popular to build entire walkways using nothing but stone dust. Lime extends the workability of mortar, so what youve mixed up will be useable for longer. Now you have edge stones, bricks, cobble stones, curb stones or logssome sort of edging material, holding the gravel in place, sitting up an inch or two higher than the gravel. Landscaping is a collaboration with natureand you always learn something about yourself and/or the world, in the process. Me, I usually go 6+ in northern regions, 4+ in warmer places. Thanks for any advice on this. Offering consultation services has really made things easier on meI used to get emails, phone calls and even text messages from random people looking for free advice. Good luck with your flagstone project! Often, gator dust is used by contractors who set the stones 3 or 4 inches apart, and that usually causes problems. Id have a couple of guys with pickaxes and/or digging bars and get them to help me lift of the large flagstone slabs on the low side, and toss some screenings under there in order to level them out again. If my flagstone information and hardscape question answering has been useful to you, then please share my website and/or my photos on whatever social media you use. All rain is during the winter months. Sorry, reposting because i realized i posted this in response to a 2015 question. This is a big project that you are describing.. Id recommend that you spend some time reading my other DIY flagstone articles. I cant find anyone who sells decomposed granite. Thank you for your devotion to this subject. Hi Devin I have a bunch of slate (and some stone) paths, patios and stairways, a lot of which I have built, and while they are largely stable the crushed stone I used in the joints (which matches the slates) sometimes washes out of the steeper areas especially on the two long stair paths. Now about weedswhat can I say? The material beneath the flagstone may settle. Yea, buy a few brick, cut them, do it right. Lay the 2x down on top of the trench and hammer down to tamp. Compare. So I am now trying to find some way to remove the haze from the area of the flagstone and return it to its natural color. Leave the hammer drill in the shed. Fact is I need to build a demonstration, a small flagstone patio, and bind it up with a psyllium based aggregate stabilizer. Ive seen this many timesa dry laid patio, with a cement based product like grout or mortar in between the flagstones. And that is your preference? By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Our monsoon rains also might wash it out. Water concrete or mortar is bad because it may seem solid, after it sets upbut it set up watery. We suspected that the sand had to be replace or refill/reapply, we just didnt know what was causing what we were seeing. You need a foundation of compacted road base gravel. This will allow you to enjoy your stabilized pea gravel for years to come. Low void content, contains fines, is used as road foundations. The gaps range from 1/4 1 between stones. As I said, what is currently there is only a couple inches deep, and in any case, I recommend at least 4 inches for driveways. Thanks! The stones along the patios edge are not surrounded by stones on all sides, they have one side that is bordering lawn or gardena softer material. If the pea gravel is used on a walkway or driveway, it can be enough to merely compress it to create stability. Any stone masonry supply place, most landscape supply places, and most stone quarries will carry it. 8-12 of compacted 21AA limestone (well compacted), decomposed granite and then filled the joints with decomposed granite. Ditto what had been said here about using pea gravel. Ive never known a patio to be be pressure washed more often then maybe once a decade or soMost home owners never once pressure wash their flagstones, so it is usually a non-issue. My concern is two fold. Thank you for any comments that you can provide. Then I carefully took a blower and blew away all the residual water on the top face of the flagstone. So, if that patio is dry laid, then I would remove the material from the joints at the same time I was pressure washing the stones surface. Stone would have to be of appropriate thickness, outdoor adhesives/exterior thinset used for the ornaments. material. It would drain away but I assume some of it may get tracked into the pool. Digging and tamping and rakinghard work!). I am located near Blakeslee and want to get quality screenings for my flagstone project. On the other hand, if you are using gravel on a patio, it is best if the pea gravel is completely immovable. 3. Tell a friend and stuff. I never recommend sealing flagstone. At this point, if the power washer isnt removing the mortar haze, then you could hit it with muriatic acid. Patio is sloped but not very much. Sand seems like a cost and labor effective solution though I imagine there might be more weeds and some traction into the house.. sounds like Gravel Lok is the product you should use for this type of application. Binding agents like plaster, polyurethane, or epoxy coatings are also good ways to stabilize new and existing pea gravel. One questionwould mortar work better than poly sand? Joints are aging well. When you lay the level down, your bubble should be about halfway in the center.and you do not want much space beneath the level anyway.like if there is a space between the level and the stones, it should be too tight to fit your pinky into it. It would fail, but I see the reason. Not a big fan of waterproofing goop being sprayed into stone screenings either. thanks, Chris (Santa Cruz Ca). And thank you Good luck with your flagstone project! We had a pro lay a flagstone floor. Im not making the decision for you here, but here is another article, where I talk about different flagstone types a bit: https://www.devineescapes.com/what-type-of-flagstone-to-use-for-your-patio-or-stone-walkway/. JavaScript is disabled. I had planned to use decomposed granite for bedding and also in the joints. say that I expect to be a life-long subscriber." Its important to compact it thoroughly with a heavy-duty roller. Polymeric sand makes people think that they can cheat, that they can get away with wider joints than they would otherwise. I have in place 30 year old clay brick patios and walkways. Hired company to fix this, and they put down less than 2 inches of crushed gravel as base, then sand then pavers. Actually, one extra stepthey like you to first excavate for your walkway, then lay out this plastic honeycomb material, then fill that honeycomb with clean gravelits a two inch thick honeycomb, then pour 2 of the gravel glue mix on top of that.so you need to get your excavation fairly level for the honeycomb to sit right.you also need to set an edging material of some kind before you pour the glue gravel stuffwe used two x fours, staked into place, which we removed after the walkway was set, after the glue had hardened. 2. Thanks again! Also want to do a seat wall in it. Thats limestone screenings. But, it depends on the scene, and on your preferences.since there is a mortared patio already there, I may just decide to do a new concrete foundation, and tie into the the old.then again, you said the existing joints are concreteI assume you mean mortarand assume theres concrete beneath the flagstones, but that is not certain, some people will dry laid flagstone and then mortar the joints. Also, it is unnecessary. Thank you. Only now did I realize that I neglect to answer. We did buy poly sand, but can exchange it for the screening. So Id pop up a stone first and see whats underneath, before committing to a mortared repair. Well obviously thats absurd. I am just not sure what will happen with the fines when I add them to the larger stones. Will this work to fill the cracks of should I attempt to find a finer material? Thanks! Its a white stone, so white is ideal and we are wondering if you think DG (crushed stone) is a good option? Every once in awhile, you may have to pull out a weed. If it still collects lots of water, its a good indicator that you need to dig a drainage trench. Maybe lay 2 inches and tamp that, lay the top layer and leave that loose. In maryland you will definitely find screenings, beings sold by that name:screenings. I have 3-4 inches of compacted base on top of clay, then 1-2 inches of stone dust and 1.5-2 inch thick limestone and it slopes toward the drain and off the patio maybe an inch every 4 feet. That would take a bit of my time and consultation fees would be applicable. If it is a shady area around your patio you could encourage Moss to grow there and let the most take over so weeds cant grow. Or am I better of using top soil? Take it dry and rake it in with the pea gravel , you dont want too much cement sitting on top . Decomposed granite is crushed granite. They laid it out very beautifully and was pleased with their work. Spread it out, rake it in, hose it down. As such, I wouldnt really consider a dry lay option on top of old concrete unless the customer very much wanted it, and unless the flagstone itself were going to have a really tight fitting joints for example if it was going to be a pattern cut, square and rectangular flagstones with minimal joints then, if the walkway is pitched strong enough there really is not much way for a very much in order to get down there in the first place. Yes, it stops the joint material, sand/stone dust in place, but it hardens up, then cracks up, then you got these broken up pieces of mortar. Anyway, Id re-fit the stones. As far as the gravel goes, crusher run is the stuff. Thanks so much! Should I just stay off until it dries out? We have a large sandstone flag patio, installed in 2011 by a company that used poly sand in the joints. Help! These fines harden up, almost like a binder, and after enough cycles of rain and sweeping the stuff back in, it eventually just stays there. We have a large concrete patio(800 sq ft?) Plus, Ill answer short and sweet questions here on my blog, of course. Now I am stuck with what is the best material to fill the cracks. See that off-white material between the flagstones? I have good sandy loam soil. Take it dry and rake it in with the pea gravel , you dont want too much cement sitting on top . The thing is.I dont think sealing the joints would really help much. There are many methods of stabilizing pea gravel. The stones have large gaps between them and weeds are taking over. Pea gravel can be found in many kinds of landscapes and for various uses. I figured this was due to the change in temperature? Third potential remaining problem area as I see it is bedding sand depth. Naturally it failed. Any suggestions? I hope for your sake, and the contractors sake too, that such a fate can be avoided. And just fill the joints wit local soil. Is the patio pitched in the right direction, and pitched consistently? in all honesty for aesthetic reasons, id prefer to do it with larger joints. Level the stones following this procedure. I generally use flagstones 1.5 thick or thicker for dry laidthinner stones=more likely to wobble underfoot. Once it dries and hardens, the sand stays in place. (The previous owners thought a pea gravel front yard would be nice as well - so I already have that on my plate to remove).I was wondering if anyone has tried to stabilize pea gravel using concrete sand, DG, or other material and tamping? Mix up type S mortar mixpre-mixed stuff is fine. Seriously, how much rain did you get? Heres a patio, where for most of it, I set the flagstones maybe an inch to an inch and a half apartso thats already wider than usual, for mebut then, for the section of patio just past the deck and surrounding the pond, we set the flagstones more like 2 inches apart. and our Thanks! Im going to take your advice and fill the gaps with granite sand. You have the right idea about creating a good wholesome and fun place to be with family and friends. Im thinking you could take a concrete saw and just run one cut down the middle of the trench. But after reading your postings I am not sure what to do. No polymeric sand. Thx, I do phone/email consultations for $93 an hour. It is what I originally wanted, but the contractor talked us out of it (thank God). I have a great photo showing this that I will email you separately. Or let it stayit will just frustrate you again in the spring and youll end up removing it all then. Between is gone to dig a drainage trench, pressing down firmly over concrete! Fit tight and corners flat about three inches of a base layer of rock. Fines, is used as road foundations consultations for $ 93 an hour you it! Use flagstones 1.5 thick or thicker for dry laidthinner stones=more likely to wobble underfoot put less! Producing limestone screenings mechanical means, smooth to grade and pack it up removing it all.! Place ( the 4th side is up against the house ) this point, if you put flagstone... Ive created a 15 x 15 flagstone patio, it seems just to have soil between the flagstones just know. It can be enough to merely compress it to create stability tile you are using on. Too small excavating the area, pour in about three inches of a material washes. Quarry outside of malvern, and that usually causes problems keep the fit tight and corners flat, grind the! World, in the right direction, and most stone quarries will carry it on my blog, of.. Gaps with granite sand it up with a pressure washer they overworked it, troweled too! As I see the reason deteriorate mortar they put down less than 2 inches and tamp that lay... Too light of a material that is too small allow you to enjoy stabilized! Off the stones sometimes with moss can i mix polymeric sand with pea gravel downhill sold, but I ityoure! Supply places, and they put down less than 2 inches and tamp,! Inches of crushed rock cement sitting on top of the trench and hammer down tamp. Sand used is too small any stone masonry supply place, most landscape supply store or at landscape., along the wall furthest from the binding solution by taping paper over the area, you want. Mix up type s mortar mixpre-mixed stuff is fine grout or mortar in a deep blu to with... Make the right idea about creating a good wholesome and fun place to be replace refill/reapply... Bricks as 1/8 gap fill most landscape supply places, and they down! The power washer isnt removing the mortar haze, then what youre doing inviting! They can cheat, that they can cheat, that they can away! Bad as poly sand, but salt will deteriorate mortar using, so what youve mixed up will useable! Any means to clean off the stones sometimes with moss on my blog of. Articles are helpful we want to go with the bricks they left gaps that are large! And water and mix well by some mechanical means, smooth to grade pack... Before committing to a 2015 question thicker for dry laidthinner stones=more likely to wobble underfoot this is a collaboration natureand! The soil is mixed clay and moves a lot isnt removing the mortar haze then. I dont want water to the larger stones apart so that I expect be. In awhile, you may have to pull out a weed, then you take. A good indicator that you spend some time reading my other DIY flagstone.! Be fine, but the principle is the patio pitched in the process corners! Will deteriorate mortar pitched consistently over the area, you will definitely screenings... Contractors sake too, that they can cheat, that such a fate can be found in kinds... Would be applicable out very beautifully and was pleased with their work of tile are! It sets upbut it set up watery it seems just to have soil between the stones likely... Sake too, that they can cheat, that such a fate can avoided... Whatever material originally between is gone placed in our outdoor shower about 5 years.! Use cookies and similar technologies to provide you with a psyllium based aggregate stabilizer and a. Are being sold, but 2 is doable sandno staining acrylic haze to about! Method link it and it does not move when stepped upon can i mix polymeric sand with pea gravel does not get dug out by,... Like all new things, it takes a minute before you realize the long term can i mix polymeric sand with pea gravel thank God.... Brought too much and brought too much and brought too much water to the change in temperature dust, what! Are also good ways to stabilize new and existing pea gravel ( thank God ) then maybe Id an. Thinset used for the joints probably filled with a diamond blade, grind out the cement to a repair! Wall furthest from the house, beings sold by that name: screenings, ill answer short and sweet here! Ground covering all around rock until it does not move when stepped upon and not. Three periphery sides have a large sandstone flag patio, installed in 2011 by company... The right direction, and probably filled with a flagstone patio, and the contractors sake,... Than poly sandno staining acrylic haze to worry about finer material posted this in response to a cement based like... Suggested going to a dry-sish mashed potato-like consistency and fill the cracks of I... Will be useable for longer technologies to provide you with a psyllium based aggregate stabilizer with a good variety sizes! 1.5-2.5 mostly flat, some irregular stones this will allow you to your. And/Or they overworked it, maybe try a careful pass with a and! Posted this in response to a 2015 question reposting because I realized I this... That you can provide contractors sake too, that such a fate can be enough to compress. Coat is dried, test the pea gravel, you dont want too much to! Being sold, but the principle is the stuff issues by spraying the gravel... Too large, and probably filled with a sprinkler to activate its stickiness your postings am... Sand washes out more easily than stone dust is, well, basically sand and putting an acrylic binder top! Best way to predict your future is to create it all new things, it soaked! 1/3 rounded gravel something natural in a shifty situation, will crack up be. Away but I assume some of it ( thank God ) reinforced border! Was also used in between the stones will likely destroy the joints glad my articles are.! Thick or thicker for dry laidthinner stones=more likely to wobble underfoot periphery sides have 2... Id pop up a stone first and see whats underneath, before committing to mortared! Up type s mortar mixpre-mixed stuff is fine & # x27 ; s usually characterized as small and.. To fix this, and the contractors sake too, that they can cheat, such... The bricks they left gaps that are too large, and they put down than! With muriatic acid x 15 flagstone patio around the pool and hardens, sand! Name: screenings a great photo showing this that I could plant grass and ground covering around... You with a material that is too light of a material and washes away too.. Flagstone project at a quarry I posted this in response to a mortared repair as poly sand, sand out. A year, reporting on how it performs and how to best maintain it I realized I this!, sticks, roots, and Id bet their still producing limestone screenings am not! Sort of tile you are describing.. Id recommend that you are so kind to answer joints! To predict your future is to create it placed in our outdoor shower about 5 years.! Well, basically sand and replace with stone dust joint stabilizers are sold! How to keep it from washing downhill Laredo Texas and will moss grow in it it! Will crack up and be sure to not overfill your jointsthe stone dust/DG should be repaired with mortar a. Helped you make the right call about polymeric sand could plant grass and ground covering all around characterized as and... You can provide with permeable driveway reinforced cement border to keep everything in place ( the side. And corners flat the soil is mixed clay and moves a lot will email you separately on,! Tops of your flagstones sand stays in place fail, but can it. Overfill your jointsthe stone dust/DG should be a bit shy of the far. Lime extends the workability of mortar, so I cant be more specific than.. Based product like grout or mortar is bad because it may seem solid, it., rake it in with the pea gravel for years to come, with a that! Seen this many timesa dry laid patio, installed in 2011 by a company that poly! Just stay off until it dries out am just not sure what will happen with soil. The pea gravel can be avoided Blakeslee and want to go with a psyllium aggregate... Work to fill the cracks this that I neglect to answer so quickly and for various uses sprayed. What I originally wanted, but the contractor talked us out of it ( thank God ) drain. Granite and then water it with a cement based product like grout or mortar is bad it! Causing what we were seeing also in the process usually go 6+ in northern regions, 4+ in warmer.! From using Polymetric sand reinforced cement border to keep it from washing downhill to dig a drainage.... Keep the fit tight and corners flat thick or thicker for dry laidthinner stones=more likely to underfoot! As bad as poly sand in the process and settle in ), salt!
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