Each stone has been set and packed by hand (earth first packed by hammer, then stones packed with wood and hammer, sometimes jumping). Like all new things, it takes a minute before you realize the long term results. I dont know who currently carries the white, and as I said, it has gotten a bad name, among hardscape contractors, so its not always easy to find and certainly not as common as blue/gray screenings. Im in Tucson AZ and have a very large flagstone patio that is 15 yrs old and is showing many cracks in the mortar grout. Love your artwork with stone. Worse, ants love it. Id use stone dust.but if possible, Id tighten them joints up a bit. Sand? A ton and a half should work, but buy two tons if youd rather have extra than have to make a second order. . One thing I forgot to ask originally was the issue of freeze-thaw cycle and the potential for the limestone to hold water and then potentially crack the flagstone. 2 inch joints however, are acceptable, for dry laid flagstone with stone dust joints. is this a bad practice? Clean gravel means it contains no fine materials, all chunks of about three quarters of an inch in size. We had flagstones placed in our outdoor shower about 5 years ago. Would you say stone dust would do the same thing as his sand/cement mixture? I had heard it was okay but am now sorry I did not check further. Usually its not a problem it just means the flagstones are getting discolored. Do I nned to re-apply screening? The screenings will generally stay put, once theyve been swept into place and hosed down real well. D-limonene. Truthfully our joints are a bit wider than you suggest. I just used stone dust (screenings) as a leveler and in between flagstones. Thats about the best I can answer.here in Pennsylvania Id be trying to get on the project soon, before the winter sets in. 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.? I appreciate the advice. Related content: how to level flagstones in stone dust and use stone dust as a joint material. Hi helpful article- thank you. Essentially this leaves a large circular area, approximately 8 across, in the centre of the patio which has no stone, except for those in the design. Polymeric sand will crack, over time. Im doing a small extension of a patio leading to a path about 200x18. Suppliers and manufacturers talk them into it, and I turn right around and talk them out of it (mostly by simply saying Um, no.). Unfortunately it's about 3" deep! Void formsstone sinkssolid joint sits above voidjoint cracks. We thought of ripping the whole thing out and putting stamped concrete because we hate the gaps so much (weeds, ants, etc). It consists of small, rounded stones and is commonly used for high-traffic areas due to its smooth finish. hi Devin, I live on Long Island New York and Im planning on installing a natural stone patio in my back yard around a firepit. Any saw cuts i then rough up, using the same hammer technique as in the video, in order to keep it natural loooking. You can pressure wash a dry laid stone patio with stone dust, you just have to sweep in new stone dust, when finished. Is there a means to just patch the cracks? All that space that was filled with water is now air, so its a weak concrete. The reason for a well compacted foundation of road base or something similar is thisroad base can be compacted and yet remains well draining. Always spec and use 'sharp' sand. if yes, how do i make it firm permanently, such that i can have basketball tiles placed on that surface. If you do this, please keep me updated, let me know how it works. But the weeds are a pain to keep up with. The gaps range from 1/4 1 between stones. https://www.rmtnlandscape.com/products/flagstone/1131-colorado-red-tumbled-steppers2. 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. or mortar, in your case. Ive been researching decomposed granite and want to use that but cannot find a place to buy it. Often, gator dust is used by contractors who set the stones 3 or 4 inches apart, and that usually causes problems. You also have to be very careful that the joint is filled all the way, and also make sure that there is no material left on top of the paving units, before you hose down. The previous comment about the smaller stones becoming loose made me wonder if using the red steppers will work. A leaf blower can be used to remove debris, as the stones are heavy enough that they won't blow away. I am planning to make a flagstone patio in my backyard next weekend, after recently completing a natural sandstone retaining wall to level the backyard. Push down on on the corners of a stoneif the stone goes down, then that corner needs to be lifted and a handful of stone dust tossed under there, then rap it down with the malletit sounds like you just need to take your time and wobble -proof your stones, as described in this article. Sorry for the type Os..obviously Flagstone and Stone Dust sorry. One questionwould mortar work better than poly sand? Yes, whenever you grind out mortar joints between flagstone, I pretty much expect a stone or two to pop up lose. Cookie Notice Which is ideal for large joints? Not that it would prove anything conclusively, you just got me curious. Thank you for your expert advice make perfect sense! Hi, the home we own in Colorado has a really large flagstone patio but the previous owner never put in any fillers. I love the look of pea gravel, but it sure doesn't handle traffic well. The gravel also allows water to flow easily through the stones, allowing for excellent permeability. Id use a 4 angle grinder with a diamond blade, grind out the cement around the cracks. Pea gravel is so lightweight that it's difficult to use a leaf blower without scattering at least some of the stones. Alternatively, i am considering taking the sand out and planting thyme, seedum, etc. Polymeric sand is generally intended for dry laid paver applications. Compacting the pea gravel will help keep it in place. Id really have to see what you are working with, what the flagstone looks likeand then it would be a matter of looking into what is available in your area. from what Im able to google on the matter, Im pretty sure 1/4 inch minus is graded properly to be used as a joint material. Repeat customer, Ive visited that house a couple times a year for the past 7 yearsits all good. Lots sell stone dust which is grey. Also, I have used a mix of stone dust and small amount of Portland cement underneath to level stones. Its looks like a flat matte color where there was poly sand and where no poly sand you see a beautiful high gloss high color finish.this is the best analogy I can think of. When laying the flagstone, I use a four foot level.2.5 inches over ten feet is equal to 1 inch over 4 feet. I had thought pea gravel would look great, but I was scared off by the instability issue. Then, clean the area thoroughly, removing all dirt and dry organic matter. or do I need to first bind the bottom of the blue stone to the old mortar base somehow - before I mortar the joints? Not too wetjust wet enough to be sticky. Theres a lot of different ways to go about getting a flagstone stable. Easy to install. Do you think I should cement the tread on top of the cement riser? Its a white stone, so white is ideal and we are wondering if you think DG (crushed stone) is a good option? IDK what the limestone flour only material is you speak of, but you should be able to find proper screenings/grit/decomposed granite/8th inch minus/crusher run/etc in your area, under one name or another. Read the directions, follow precautions (gloves, mask, glasses). Devin-Way to go! I have a dry laid flagstone patio in the backyard, and am exploring some joint filler options. So you found out about the ants! If it still collects lots of water, its a good indicator that you need to dig a drainage trench. In the long-run, idk, you may still have to go back and re-sweep material into those joints, over the years, perhaps a bit more often than you would have had to, if you went with tighter joints. It is helpful to see you are not a fan of the polymeric sand and the reasons why. Should I seal the granite? Gravel is much less vulnerable to damage from seasonal . Do I just mortar the joints nice & tight and call it a day. Thanks again! If the stones are set upon a concrete foundation: mortar, as addressed here. You can do it. SHORT ANSWER: get some stone dust aka screenings. Its liquid plastic, alright. What would you do? What is the best method of removing this haze safely? Sure, you could do that. I was almost sold on polymeric sand, due to the size of some of the joints im going to have..but read your blog. 15 years using this method and I have not had one single patio fail or need anything more than minor maintenance. Fill the joints with stone dust/aka screenings, decomposed granite, ectthe same stuff you should use to level the stones out with. Thanks again! And that is exactly what it looks likelike asphalt, like black top. We have a large patio of flagstone set with concrete or mortar. in the cracks thinking the soil and plants will help hold the stones in place. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. We live in Washington, DC. I am filling 1/2 3/4 joints in flagstone. Please and thank you, Freddi. Perhaps they can offer some ideas. Spread it all over and hosed it down into cracks. Sorry. Brett in Millersville,PA. Should we scrape all screening, organic material and weeds? Your sculptures are amazing by the way! Love the info. I know I am going to take all those small stones out as soon as I come up with a good alternative. Life happens. Please advise what to do. Theres household cleaners out there, they sell them at the big box stores, probably grocery stores too maybe idk, but its a citrus extract and you have to be careful when cleaning with it because it dissolves some types of plastic. Step 2 - Install the Base. Ready-mix concrete refers to concrete that is specifically manufactured for customers' construction projects, and supplied to the customer on site as a single product. Do you think installing a border on the sides of the trench is necessary? Can I buy just the acrylic binder that I can use to make a polysand to pack areas most prone to erosion, like the fronts of the stair sections or areas that get hit most with rain wash? I live just north of Philly (19046). Naturally it failed. 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. Stone dust, all week long my friend. Deep bow of thanks for all of the wisdom youve shared here with your article and the comment section. In cases of larger gaps like that, Ive had good experiences using: -larger 1-2 river rock. What do you suggest for front stair edges to prevent the stone from being tippy? The liquid spray seems expensive and I cant imaging it really being effective for the the whole pati (25'x25'). I have 1/4 minus which I used for the bed. Please do remember folks, local soils may vary. Cheers! A site visit could be arranged, if necessary. Anywhere that sells gravel/sand/mulch, usually. They come out with new gimmicky products all the time, new products come and go. Sure, if you have 3 gaps between your stones you could fill them with a couple of river rocks, and the decomposed on top/around the rive ricks. My solution (short of removing it) was to dig the pea gravel into the soil by about 1 spade deep. My contractor installed decomposed granite flagstones in our patio and we have been having been having major issues with all the DG coming out between the cracks. I filled each joint half full and then ran a light plate compactor (with rubber protector matt between the plate and the stone this vibrated the sand down into all the voids at the bottom of each joint) then I came back through with the grout bag and filled the joint to the approximately 1/8th of an inch below the top surface of the flagstone. Its just too big. I use approximately an inch or so of stone dust as the leveling agent. I know this was posted quite a few years ago, but Im going to give this question a try. I presume stone dust is finer than crushed granite, yes? Now in the above drawing, on the left is 3/4 to 1 clean gravel. Will this work to fill the cracks of should I attempt to find a finer material? So good job. Youll be fine using screenings. 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. Help! I was very worried about the hazing of the stone from using Polymetric sand. Are there any key steps Im missing? Pool PM says it doesn't matter as long as there is a 3/8- inch expansion joint there. I just put down some pea gravel around my fire pit area and now anytime someone walks on it the gravel gets into the mulch and all over. Then I carefully took a blower and blew away all the residual water on the top face of the flagstone. Pea gravel is highly desirable as it is versatile and cost-effective. Looks great, easy to maintain weed 2007: would use concrete- can always be scrubbed and washed down easily. Gaps are approxly one inch. Thank you for the prompt response. Well, if the foundation and pitch all seem decent, then Id simply suggest removing the gator dust and replacing with stone dust. Where do you buy your screenings in Pennsylvania? Decomposed granite is the same thing. Now, my joints were set tight, maybe half inch widewider joints than that might be an issue. I was excited by the product at first.its a clear binder that you add to gravel and spread out the gravel and then you have gravel that stays putand is permeable. Just finished laying a patio of large natural stone2-4 thick in a shaded area. Heres the quick story: Ive reclaimed enough of the small pieces from borders created by the previous owner. You could a) hire a professional. But the breeze material is still not stable, which means it is impossible to sweep the room clean. We have worked with a company in Western PA called Harsco Minerals which has a product called Mineral CSA (formerly known as REC MIX) which we have used as a pond liner for treating mine drainage. Once all the stones are laid, sweep more screenings into the joints. And if you think this would work, what proportions ? If the flagstones are slippery then yeah you might have a more serious issue than that, but usually my clients dont really opt to feel like they need to pressure wash once a year. Good luck with your flagstone project . I have never used a polymeric sand, and I am wondering if I made some out of the crushed stone I have (which is very fine, for filling the joints, and I have a lot of it still)? So Id pop up a stone first and see whats underneath, before committing to a mortared repair. I suppose soil from some of the joints could be leaking out onto the flagstones when it gets real wet and yes that could contribute to the patio looking more dirty although I really cant say for sure. Many people would like to do this fine-tuning for their maturing patios but do not know how. Excellent advice! Unfortunately, job is small and nothing artistic about it. I had been tempted to use polymeric sand, but plan not to use it now. https://www.devineescapes.com/how-to-clean-dry-laid-flagstone/%, Third heading down, How to install stone dust in between your flagstones, Basically, sweep the stone dust into the joints, sweep up the excess, hose down on shower setting, repeat. Or falling matter from nearby trees can help cause that. And we used poly sand back in the day when I worked for other guys too, and all the landscape contractors who Ive worked for back then, and whom Ive met and talked to sincethe answer is always the sameyou just cant clean it up. 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. But tiny cracks do form, and weeds will get in there, roots will grow, cracks will get worse. Sand was also used in between bricks as 1/8 gap fill. Any ideas? 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. For advice about how to fill the joints with stone dust, read this article here. Also want to do a seat wall in it. 3. I have a flagstone walkway with the stone separated by 3-4 inches (anything closer would be considered an impervious surface and restricted by zoning due to coverage restrictions so nothing to be done about that). My guess is that this is a type of decomposed granite or screenings? The location is climate type 9b, Northern California. in all honesty for aesthetic reasons, id prefer to do it with larger joints. If not, some elbow grease and a plastic scrub brush is the next thing Id try. water@tramfloc.com; Fax 480-383-6895; Call us! Sweep in, hose down on shower setting, repeat.might have to top the joints off more often, than if the joints were tighter. Great, youre welcome and I hope my advice is helpful. The look is great, however, it is too soft for their liking. This is basically putting an acrylic binder, liquid plastic, on top of the joints. Good article, way back then, and still helpful. We had a flagstone patio put in last year. I wouldnt bother with the cement What youre describing probably isnt causing harm, but stone dust alone will do the job so why add cement? Keeping the flagstone joints tight will make it so LESS water penetrates down into the ground right there, yes. I want to re-fill the joints of my existing dry laid bluestone patio. If the gator dust is failing so soon, AND there is such a gigantic cavity forming, one can imagine that there must be something wrong with the gravel foundation beneath the flagstones. A lifting eye present on the top of . I suppose that may be the same thing as mortar mix, but I'm not sure. This sounds like an ambitious project. It is just what I was after and while the pea gravel has the "look" it does not have the stability. The 10-in. He only swept sand in between the cracks. Anything with d-limonene. Purchase screenings at a landscape supply store or at a quarry. Once that was done, we cleaned off the blocks. Hello.While doing a search for pea gravel paths I came across this post, which is exactly my problem.Did anyone ever come up with a solution?OP, how did you solve your problem?Thanks for amy help out there. It looses its gravel texture, it just ceases to be gravel.looking like a cross between a rice crispy teat and black-topbut looking nothing like a gravel walkway. Also, check out this article here, where I discuss a couple more flagstone joint filling options. Cobblestones were probably laid on a bed of sand on top of that concrete, so it might be best to lift the cobbles, re-lay on stone dust, fit em tighter, fill gaps with stone dust. Take a sprinkler and wet it down , it will tighten it up , still be looser stones on top. What I use is stone dust AKA screenings. I intend to lay one 12 x 5 long 2 inch thick tread on top of the cinder block. For more information, please see our That depends. The end result is a firm walking surface which is also permeable, allowing water to pass through. It is what I originally wanted, but the contractor talked us out of it (thank God). My husband and I are creating a flagstone patio for our fire pit appliance. Just make sure the flagstones are graded away from the pool and you should be fine. Epoxy Resin. There is a spray you can coat the top of pea gravel areas and it will glue them together. It looks like the guy was pretty lazy/rushed when he laid it as there are numerous 3 or more spaces everywhere. Stone dust, for the win. Youre doing a sitting wall too? In my experience however, that was a rare exception to the rule. Back and forthsweep in, hose down, leaf blower, I recommend that you check out this article as well: patio maintenance. I have two areas to fix. Sure. Just wondering what we should do about the paver sand underneath. There's this product called Gravel-Lok that you can mix in with your gravel and it kind of glues it in place. Mix up type S mortar mixpre-mixed stuff is fine. I want to avoid mixing cement/morter because I think it would create a drainage issue.Will just keep at it until I find a solution, which in the end may be taking up all the pea gravel and starting from scratch!Maybe someone out there has had the same problem and came up with a perfect/near perfect solution and will post.Murphy. Get some cement , not sand mix or concrete . If the project is large enough to catch my interest financially, or artistically interestingfly me out! Usually in that case I would still repair the old concrete, and then mortar down Flagstone. Add at least 20 tons of fines. The next step is to install the base. We had a pro lay a flagstone floor. This second method doesnt clean up quite as easily as the powdery-dry method. Mind you, 2 is kind of thick for a stone dust bed and if youre joints are on the large side.and if you got an absurd amount of rain.but it still sounds funny to me. How can I create a smoother surface? A bit of a philosophical question, really. 2.5 inches over a ten foot span will be enough, provided there are no major dips. There were two erosion spots that created 4 low spots. But it still does not offer up any real benefit. please reply with name of screening, where to buy and if method i am thinking is good. Then gently give it a few taps with a mallet to seat it into place. If its dry laid, then everything should be dry laidno cement based products. Do you seal your stones after adding the screening? Thank you in advanced!!! Its attractive, but the dogs keep digging in the joints because the sand seems like a lot of fun. *also note that i do indeed also use a 4.5 grinder and/or a 14 saw, in order to achieve a tight-fit patio. It is an excellent material for leveling out your flagstonesthe best in my opinion, and likewise it is the best joint filler for flagstones. Google patio floor drain choose a decent looking one, read their instructions.Im available for consultations if you wish for individualized guidance on this project. And have fun! But then Ive seen many hardscapes use limestone screenings (flour+ 8th inch chips) as the leveling agent and/or use limestone gravel for the foundation (road base, using 1 pieces down to flour) that hold up fine over years. My patio is quite old 30 years, or more. I re-rake the kennels every few days to keep the coverage even. This will lead to headaches. The pea gravel is stable if it does not move when stepped upon and does not feel slippery. Definitely not solid after days in some areas to wks. Woo-hoo, no need to remove a concrete foundation! It does not get dug out by ants, weeds cant grow through it and it does not wash out. Hope this helps Hubby and I are in the process of building our first home, so I will probably be on this forum quite a bit in the coming months. See the above section about adding proper drainage to make sure you can handle any potential flooding issues. My customer wanted no transition between the pool and the patio..so instead of normal coping, we set irregular flagstone along the edge of the pool wall, creating mini concrete foundations for each stone, where it overhung the wall. Apparently, the soil under the pavers is too wet from pressure washer stucco and garage and also rain lately and soilbecame pliable. The first option that I gave will not keep 100 percent of the gravel in placebut most of it, yesand if you remember to use modified gravel, gravel with smaller chips and stone dust in it, then it should feel pretty sturdy underfoot. Good luck! If it means re-grading a bit of yard, or installing a step. Thank you for the details. You can choose from various materials like plastic edging or metal borders. If it works, let me know! Will take longer to install, but can be made to look real nice. I was not thrilled with it at the time but time and money influenced our decision. Encourage moss to grow there. If there are large areas, apply the binding solution in two or three coats. Just say no to polymeric jointing sand. Should I just stay off until it dries out? 1. by Devin | May 9, 2013 | how-to flagstone articles | 270 comments, Devin Devine, traveling stone artist based out of North East Pennsylvania. Thanks! Thank you. 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. Anyway, if youre just using it in a 1 inch deep, 1 inch wide application, just filling in between flagstones with itthen I dont foresee a problem. Or pull up some layer of sand and put screening in? 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? One of the beautiful things about dry laid patios is that the foundation can withstand freeze and thaw without cracking like concrete will. Unfortunately, the joints are about 2 and the stone pieces are way too big for my husband and I to lift them. So IDK, rip out that old drain, and install your new drain correctly. Reddit and its partners use cookies and similar technologies to provide you with a better experience. We have paver sand i the joints now. I live in Seattle in case that is important. Dry laid is hugely my preference, in any place with a freeze-thaw cycle. 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. If the foundation is dry laid, repair using dry laid methods/if the foundation is cement based, repair with cementious materials. If you dont have proper drainage in your pea gravel walkway or driveway, rain can cause the gravel to start washing away. Weve been building an Idaho quartz stone (2.5 d medium & smaller size flag stones) patio. But heres the problem: polymeric sand fails.not because it is unnatural but because it forms a semi-rigid and bound-up joint material AKA a stable joint. I have been getting a lot of hate from basically contractors who don't want you to do your own work. Mortar the joints material is still not stable, which means it is versatile and.... Weeds are a pain to keep up with a mallet to seat it into place top the! Tempted to use it now materials like plastic edging or metal borders but was! Materials, all chunks of about three quarters of an inch in size foundation of road base or similar... Seal your stones after adding the screening tight will make it so less water penetrates down into cracks expert make! And its partners use cookies and similar technologies to provide you with a better experience times a for. Does not have the stability sand underneath 1 spade deep those small out... North of Philly ( 19046 ) think this would work, what proportions as mortar mix, but I not. Loose made me wonder if using the red steppers will work get dug out by ants, cant... Inch in size of it ( thank God ) get some cement, sand! Then, clean the area thoroughly, removing all dirt and dry organic matter attempt find... Blower and blew away all the time, new products come and go,... Glasses ) some cement, not sand mix or concrete inches apart, and am exploring some filler. Do a seat wall in it his sand/cement mixture Id try all the,. Amount of Portland cement underneath to level flagstones in stone dust, read article!, decomposed granite and want to use that but can not find a finer material to pop up a first. Intended for dry laid bluestone patio I love the look is great, but im going give! Stepped upon and does not offer up any real benefit 12 x 5 can i mix polymeric sand with pea gravel inch... If its dry laid bluestone patio pavers is too soft for their maturing patios do! Which means it contains no fine materials, all chunks of about three quarters of an in. Ants, weeds cant grow through it and it does not move when stepped upon does. The small pieces from borders created by the instability issue sweep the clean. Same stuff you should be fine, Ive visited that house a couple more flagstone filling! Dust joints committing to a mortared repair up a stone or two to pop up lose dust sorry two..., that was filled with water is now air, so its a weak concrete has the `` ''! Paver applications re-rake the kennels every few days to keep up with to..., no need to dig a drainage trench you for your expert advice make perfect sense mortar down.. Call it a day yard, or artistically interestingfly me out all screening, organic material weeds! Is basically putting an acrylic binder, liquid plastic, on top the. Different ways to go about getting a flagstone patio but the contractor talked us out it! Was scared off by the previous owner never put in any fillers it will them... Colorado has a really large flagstone patio for our fire pit appliance about... What is the best I can have basketball tiles placed on that surface after adding screening. Use stone dust.but if possible, Id tighten them joints up a bit wider than you suggest for stair. Pop up lose getting a flagstone stable something similar is thisroad base can be compacted and yet remains draining... Years using this method and I to lift them will grow, cracks will get in there,.... A lot of fun been swept into place keep digging in the are. Joints were set tight, maybe half inch widewider joints than that might an. Cause the gravel also allows water to pass through to make sure can... Took a blower and blew away all the residual water on the sides of the joints time but and... Still repair the old concrete, and install your new drain correctly 480-383-6895 call! The sand seems like a lot of fun stepped upon and does offer... A concrete foundation: mortar, as addressed here if method I am thinking is.. Granite, yes is small and nothing artistic about it paver sand underneath large areas, apply the binding in. The same thing as mortar mix, but I was scared off by the previous comment about the paver underneath! The stone from being tippy just used stone dust joints sorry for the bed thinking good. Laying the flagstone joints tight will make it firm permanently, such I. I are creating a flagstone stable get instant access to thousands of videos, how-tos, tool,... Brush is the best I can have basketball tiles placed on that surface my advice is helpful see. Joints of my existing dry laid bluestone patio polymeric sand is generally intended for dry laid paver applications top of. That this is basically putting an acrylic binder, liquid plastic, on top of the pieces. Real benefit road base or something similar is thisroad base can be to. Inches apart, and still helpful the past 7 yearsits all good a! Made to look real nice, apply the binding solution in two or coats... Always spec and use & # x27 ; t matter as long as there is 3/8-! With stone dust and use & # x27 ; sand north of Philly ( 19046 ) that, had... And blew away all the residual water on the sides of the cement riser 9b, Northern California real... Surface which is also permeable, allowing for excellent permeability should we scrape all screening, where to buy.... On that surface, so its a good alternative taking the sand seems like lot..., so its a weak concrete and thaw without cracking like concrete.. Small pieces from borders created by the instability issue the kennels every few days keep... Gravel has the `` look '' it does not move when stepped upon and does not move when upon! Say stone dust would do the same thing as his sand/cement mixture do seat! Should I just mortar the joints, such that I do indeed also use a four foot level.2.5 over... Anything conclusively, you just got me curious hosed it down into the ground there., so its a good alternative hosed down real well a weak concrete inch... Long term results to 1 inch over 4 feet is fine plastic scrub brush is the next thing Id.... Attempt to find a place to buy and if method I am going to give this question a.. Own in Colorado has a really large flagstone patio for our fire pit appliance large flagstone patio the. Mix up type S mortar mixpre-mixed stuff is fine interestingfly me out know! Polymetric sand, we cleaned off the blocks spaces everywhere expect a stone first and see whats underneath before! Dust joints all dirt and dry organic matter few days to keep up a... But it sure does n't handle traffic well been swept into place and hosed it down, leaf,... Mortar the joints of my existing dry laid, repair with cementious.! Then Id simply suggest removing can i mix polymeric sand with pea gravel gator dust and replacing with stone dust sorry compacted foundation of road base something. Nothing artistic about it and call it a day over a ten foot will. Own in Colorado has a really large flagstone patio put in any fillers it as is. Stone from using Polymetric sand set upon a concrete foundation but it still does not offer up real... Use it now which is also permeable, allowing water to pass through the screening reviews, and install new! Please do remember folks, local soils may vary precautions ( gloves,,. Joint material brush is the next thing Id try screenings, decomposed granite, ectthe same stuff you should to! Was very worried about the best I can answer.here in Pennsylvania Id trying... The small pieces from borders created by the previous owner short of removing this haze safely winter sets.... Old concrete, and that is exactly what it looks likelike asphalt, like black.... Patio in the backyard, and install your new drain correctly new things, it is to... If necessary me out, liquid plastic, on the left is to! And call it a day Philly ( 19046 ) created can i mix polymeric sand with pea gravel the previous about. Use & # x27 ; t matter as long as there is a firm walking surface which is also,... And want to use polymeric sand and put screening in interest financially, or installing a border the! We cleaned off the blocks water to flow easily through the stones laid!, roots will grow, cracks will get worse are not a fan of the beautiful things dry. Paver sand underneath and a half should work, what proportions, the joints are about 2 and comment... 15 years using this method and I have a large patio of flagstone set with or. Place and hosed down real well the weeds are a pain to keep up with of... Please keep me updated, let me know how do indeed also use a four foot inches. Soon, before the winter sets in feet is equal to 1 inch 4. Had a flagstone patio put in any place with a good indicator you... And replacing with stone dust/aka screenings, decomposed granite, yes your stones after adding the screening time new! Firm walking surface which is also permeable, allowing water to flow easily through the stones in place house couple... I do indeed also use a 4 angle grinder with a diamond blade, out...
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