Not a big fan of waterproofing goop being sprayed into stone screenings either. That number will improve, over the months, as stones settle in. Take a look at some of the polymer sealers out there, Gator Dust, by Alliance, works with patio installs. Devin, Thank you for this blog and great info. Some areas actually need it more than once a year… I live in Connecticut, and parts of my patio and walkways don’t get much sunlight. I am pretty sure bluestone screening is available in my area. Sorry, never used it! -Many other ground covers to choose from. I hope that helps. Yes I have run experiments oin differenat areas of the patio and have used different amts of water with the same results. When you re-lay you need to fit them bricks tighter. There are some joints approaching 1 inch. Polymeric sand is basically sand mixed with an acrylic binder. But sand won’t help and if you do not want to do it “proper” to begin with–then what you already have is probably fine. We have to install the permeable pavers because it was required by the city. The reason for a well compacted foundation of road base or something similar is this–road base can be compacted and yet remains well draining. I think you use what you have available. Tamp it like crazy. Any ideas? Also, very impressive stone sculptures! Also, I just placed about 4 of them to see how it might work. So IDK, rip out that old drain, and install your new drain correctly. I am sure this is what the person who installed our flagstone patio 8 years ago said to use to fill the cracks. $("#local-search-location").val($("#local-search-location-req").val()); Pea gravel provides countless opportunities to transform your landscape into the one that is beautiful and easy to maintain. So I use a 4 foot level. Hate it? From reading the MSDS it appears to be a resin that forms a binding polymer unpon activation. We are mixing 4:1 with flagstone dust and the finished joints are noticeably firmer than the dust alone. or if you are doing it yourself you can find suppliers local to you. 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 stones tend to get lodged on your shoes and are dragged into the house. Do you think it would work for a sitting area around a fire pit? Now in the above drawing, on the left is 3/4″ to 1″ clean gravel. Also, are their any loose flagstones? And I also offer DIY phone consultations, in case my articles are not enough to help you with your flagstone questions. Just make sure to do the project at a time inwhich the weather is not expected to get below freezing for a good 48 hours or longer. Hey, I just remembered, d-limonene (an extract of orange peels, and an all natural solvent) happens to be something that you need to be careful around plastics with, as it may dissolve them. Thanks for the instructions and tips…love your supervisor, too! One on one help is available. Jim. Can I still use the screening and will moss grow in it? Your work looks great! I’d go with the stone dust/decomposed granite. The mallet can only do minor adjustments, as far as leveling flagstones is concerned. I’ll post some pictures when we’re done. Shoot me an email if you think you’ll need personal guidance, otherwise goodluck and I hope I’ve been helpful . -moss. Looks great, easy to maintain... weed 2007: would use concrete- can always be scrubbed and washed down easily. It is easy to apply, environmentally friendly and allows water to percolate. I find cleaning up the solids simple with a disposable glove and plastic bag. Your plants look great too. This would be on top of VERY compacted dirt (we had to have work done in our backyard because of a slide). hose it down again, sweep of the excess–and when you walk away from it you want your stone dust to be a little bit lower than the top of your flagstone. Devin, Before my enlightenment – my aha! Thanks for your help, George. You mix it with the fines and sweep into the cracks, moisten. Then tamp. Having said that, it’s a gamble–sometimes you can lay a few flagstones on sand and not have them taken over by ants….so such a small amount of sand in between your flagstones may not be an issue. This also helps to pack it down. return; Not too wet–just wet enough to be sticky. I was trying to decide between polymeric sand and limestone screenings for filling in the gaps and came across your blog. I’ve never known a patio to be be pressure washed more often then maybe once a decade or so…Most home owners never once pressure wash their flagstones, so it is usually a non-issue. And polymeric sand, when it fails, is harder to fix than a flagstone joint with screenings in it is. Another material I had considered was decomposed granite, which I recall seeing a lot in California. 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. Tell a friend and stuff. The cut down the sides and compacted "A gravel" at the bottom, but nothing more. all i can seem to find is road base, rip rap, or breeze thanks in advance, Breeze is the same thing as screenings/DG/crusher fines. Main problem I see so far is that those are pretty thin flagstones for dry laid. The area is shady and I imagine the main part of the area will grow moss but the pathway off the larger area might get a little sun so maybe not there. How has the path held up? To lay your flagstone patio 1) set out yours tones like a puzzle, as you said. Will patio furniture have trouble with the joints between your flagstone. 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. Most areas are failing, so I plan on filling the gaps with stone dust. What I use is stone dust AKA screenings. You can do it. And I’ve had to repair and replace many such patios….same effect happens when someone decides to cement together the cap of a dry stone wall. To be fair I’ve seen exceptions! I am not a fan of leafblowers and don’t have the patience to pick out leaves and other detritus by hand, so I’m glad I finally found a way to make pea gravel work. Good luck! Sorry for the type O’s…..obviously “Flagstone” and Stone Dust” sorry…. Perhaps you could take a smaller piece of stone, create a mosaic up top of that…and use the resultant piece as a smaller paving stone, set on stone dust, among your dry laid flagstones. Providing adequate depth will ensure that the pea gravel will completely cover the desired location and provide the desired appearance. Send photos and info to devin@devineescapes.com. 1. plastic grid tiles. If so…well, that’s a whole ‘nother question entirely. Digging and tamping and raking–hard work!). Hi I wish I could afford to hire you! Often, gator dust is used by contractors who set the stones 3 or 4 inches apart, and that usually causes problems. 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. Widen the cracks. Devin, What a great article. Expect to be topping off the stone dust trenches a couple times a year, first year or 2.

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