The bricks are on now stable 1-2 dry sand beds. Lay the 2x down on top of the trench and hammer down to tamp. Thank you for your very fast response and for taking the time to answer my question. Thanks for pointing this out. Which is ideal for large joints? Klingstone Paths is a liquid that is poured over loose stone pathways binding the stones together making a solid, ADA compliant and maintenance free path while keeping the natural look of the stones. Theres no type of soap that will help, wirebrush does nothing at all. It also allows for drainage, which can be beneficial in areas with heavy rainfall, as it prevents water from pooling on the surface. Because the attractiveness of the pea-gravel surface is lessened by epoxy resin or polyurethane coatings, we found the best method was (1) above. Do you have pea gravel? The gaps range from 1/4 1 between stones. Devin, have you tried NATRACIL as a stabilizer? Love the info. Clean off dust and lightly dampen the old cracked polymeric sand. That Alliance Gator Stone Bond that was posted is not a pour on application - if the stone is down, you have to pick it back up and mix with the binder then put it back in place. Very useful information. Anyway, I like to set flagstone on a foundation of road base, also-known-as 2A/modified gravel. Not to be pendantic! I have to explain to them that I dont just go to the freezer and get food, I actually have expenses, commitments and work that they dont have and if they want free food, they can go out and buy a farm and do all the work for free! It is good to know that pros have to take it stone-by-stone and be patient. Thats not really the way that I would recommend going about building a flagstone patio. Scroll down to the heading that says How to install stone dust in between your flagstones. I have raw edged slate from a slate fall in the woods, so its a puzzle to fit, but super relaxing and good exercise. Absolutely. Ive heard and read about some concerns about the limestone breaking down the flag over time, as well as concerns for efflorescence. Secondly, never been afraid of a little work!! I have an Arizona flagstone patio & sidewalk with mortar over concrete pad and live in Colorado. 3. https://images.homedepot-static.com/productImages/8f8e41ef-21f0-4fba-beda-fcb652335ff0/svn/quikrete-masonry-mortar-mix-a003a-64_1000.jpg. The thing is.I dont think sealing the joints would really help much. So, I gave up on that. Great article Devin. Me, I usually go 6+ in northern regions, 4+ in warmer places. Its been working for me. Check it againrepeat until its wobble-free. I really don't know what I'm doing so any tips are appreciated. I hope for your sake, and the contractors sake too, that such a fate can be avoided. Do I start with stone dust and then add a top layer of topsoil? My wife and I are interested in a new brown wave patio. (P.S. Any suggestions? Theres some way to clean the stuff of your flagstones! I have 4 large, thick stones for the 4 corners and many med-large stones interspersed for stability. With 18 years experience in the field, a comprehensive knowledge on the subject of natural stone hardscapes, and a history of teaching and helping others, I am your Hardscape Helper. Orange oil. On impulse, I created a design, using a few large pieces of flagstone, in the centre of the patio. Assuming that the foundation is gravel. Ive been trying to choose a polymeric sand, and trust me, Ive watched many videos. But screenings are only used in dry laid application. I have thought of using the polymeric sand to keep out both as much as possible. Thank you very much. I was wondering I have put all my random flagstone down on the screening. Sounds like a lot of work and I have no place to dump the pea gravel. Do you have any thought on how to make the surface more solid so particles do not get blown or washed out? In fact, Ive seen many hardscapes home owner installations, where natural dirt, I mean local soil, was used for the foundation. 6 Reviews. For urine & feces odor control I spray the kennels occasionally with yard odor killer, which works great.I don't use cement because it is damaging to the dogs pads.To address my problem:I have a long driveway made with reject ab. All the flagstones should be lifted up, the sand replaced with screenings. A friend recommended polymeric stone dust so I did a search. That depends. For more information, please see our We have a large patio of flagstone set with concrete or mortar. Related Content: How Much Does Pea Gravel Cost? Ive never heard of anything like that. Againdo not spray round-up or any other poison unto your patio. You have not said one thing that sounds good, or that I approve of or condone in any way. In my experience however, that was a rare exception to the rule. Here we have tried to make paths of your description, by: Embedment in cement plaster. Take a look at some of the polymer sealers out there, Gator Dust, by Alliance, works with patio installs. work the soil to a depth of approximately 5 to 6 inches, How To Keep Gravel In Place In A Driveway. 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. It is easy to apply, environmentally friendly and allows water to percolate. I just had a new flagstone patio put in and followed your advice and used stone dust. Related content: dry stone spheres by Devin Devine. The flagstones, having not perfectly flat surfaces, means that if you fill the joints all the way flush with the tops of the flagstones, then that joint material will spill out. Your thoughts please? Add another substrate like sand, dry cement (not concrete), stone dust. Sweep in, hose down on shower setting, repeat.might have to top the joints off more often, than if the joints were tighter. You can get rid of weeds easily by boiling up a pot of water in the pouring water on them. 2) level out the stones, one at a time, using the crushed stone to raise them up, as needed. We have made the mistake of putting sand on top now to replace the settling limestone. Gods peace. 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. Boil a pot of water, to kill weeds. I just used stone dust (screenings) as a leveler and in between stones. I havent been able to find much info about it so I really hope it really is a natural alternative to polymers. Sweeping sand into the joints is one way to go about it.read the article, for other suggestions , Or, check out this great article here: https://www.devineescapes.com/flagstone-what-to-use-sand-cement-or-gravel/. Is it well compacted? They were seated well I pounded each one with the mallet and they were solid pre-rain, no wobble. Voles, moles, or mice were causing the damage. Any suggestions on how to keep it from washing downhill? Just shy of the top. (a careful pass with the pressure washer shouldnt damage the stones. The flagstones probably arent perfectly smooth on top and so its basically impossible to get the stone dust flush with the top of the stones anyway, so go an 1/8 to a 1/4 shy of the top. Hi Devin. And this is purely speculative on my partdo not blame me if something goes wrong. Visible from the road, near blue Mountain Ski Resort. Polymeric sand is sand with an acrylic binder added. I plan to do a flagstone patio. In short: sweep the stone dust into the joints, hose down. However, it will reduce permeability, causing water runoff. Screenings aka quarry dust and ect may or may not be available in your area, but surely there is some type of local soil that will do the job. I was told to lay my flag stone like a puzzle with a 3/4 in space in between, and use a mallet to get the flagstones to be level with one an other. Thank you for the responses. The advantages of gravel. Ill probabvly be emailing you soon, to set up a consultation, as we have some questions about cutting, dealing with elevations and drainage issues, just some stuff particular to our project, and it would be good for someone to hold our hand walk us through the process, make us feel more confident about what we need to do. A customer installed 46 tons (4000 sf) of to decorative type stone, fairly rounded with minimal fines on their driveway. Then the top inch or 2 with the stone dust. These will be an acrylic polymer epoxy resign stuff.essentially, liquid plastic. Metal is more durable, but no matter what border you choose, it should be at least 1/2 inch above the ground outside the perimeter. He also suggested going to a cement company and asking about their sand. Technisoil.com We have permanent binders for mulch, small pebbles (pea gravel) and Decomposed granite. Its popularity increased steadily for a decade and now it is a very common landscape product. But it should work well enough, yes. A bit of a philosophical question, really. The pea gravel is stable if it does not move when stepped upon and does not feel slippery. Maybe lay 2 inches and tamp that, lay the top layer and leave that loose. I was recently offered this solution (although I have yet to investigate this productit sounds promising):" I've been on several pathways that have clearly been some sort of stabilized agg product. Just finished laying a patio of large natural stone2-4 thick in a shaded area. 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. I wonder if mixing the top layer of pebbles with stone dust might not stabilize your pea gravel somewhat, kind of like crusher run?. The end result is a firm walking surface which is also permeable, allowing water to pass through. 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. Just say no to polymeric jointing sand. I have a dry laid flagstone patio in the backyard, and am exploring some joint filler options. Seriously, how much rain did you get? If you want you can promote moss in the shady areaput some moss in the blender with old beer/buttermilk (perhaps this is what you mean by the yogurt method?) If you wish to pressure wash a patio that has screenings for the joints, then you will have to sweep the material back into place after pressure washing. Re-lay on stone dust/pathway fines/DG.they sell it in your area, but since I dont know your area I can not tell you the local name. It did say that clean up was with ammonia, so isit stray cat proof? Since the stones fit back nicely into place, only the seal between the mortar and the stone has brokenI recommend using pl loctite premium: https://amzn.to/3z9FWTi They sell it at depot and lowes, in the caulk isle. Read the Instructions. Then, letting the patio air dryand repeating. Question: contractors want to use polymeric filler or some combo of filler. Stone dust/decomposed granite would work well in the dry months, but in North Californias rainy season..Im just concerned that the trenches have concrete at the bottom, so the stone dust would have no way to dry out, for months at a time. This second method doesnt clean up quite as easily as the powdery-dry method. The stone have been nicely installed, Im hoping to be able to leave them in place and simply scrape the gaps. It commonly ranges from 0.63 to 1.26" in diameter and is commonly sold by the ton or truck-load. and you want to come up with a dry joint, that has the same color. Using decomposed granite will help the pea gravel set and not move when people walk on it. Hello Devin, I live in Ottawa, Canada and we have an old flagstone pathway. Fact is, if natracil wanted some publicity.theyd send me a free sample. Im thinking you could take a concrete saw and just run one cut down the middle of the trench. Youre welcome. I recently laid down a flagstone patio in sand and used sand to fill the joints. So glad I found your blog, almost as much as finding a buried 1220 flagstone patio in our backyard! After excavating the area, pour in about three inches of a base layer of crushed rock. This, I believe, answers your need for a walkway where most of the gravel stays in place, yet is still permeable. Would appreciate your advice. I have a circle design using left-over holland pavers; so there are cracks. Effort PA. Southern Poconos. Also, are their any loose flagstones? Very stylistic and attractive stone fitting, very beautiful and interesting contoursI know its a bummer having to re-do some of your work, but this patio is going to be amazing, and real soon too. After only 2 months the patio has developed a cavity probably 12-18 deep with an oblong hole in the sand about 6 long.
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