Everyday of my life, theres someone asking me what to do about their 8 inch wide flagstone joints. I rarely sub, but your outfit looks alright. Hi, love the blog, just stumbled into it and you have a great skill at explaining things. You may be familiar with it as a stomach medicine. You basically pour the product over existing gravel surfaces and let it dry to keep gravel in place. Looks like the flagstone was set in a concrete base. Where do you buy the screenings? Surrounded by retaining wallsso the patio is below grade, and a drain of some type is necessary. Yes, concrete can be poured on pea gravel, but it is important to make sure that the gravel is properly prepared. I am considering taking the sand out, re-leveling, and filling the joints with screening instead. Or small pebbles..but the thing is, that small voids may likely form beneath some of your patio stones. The layer will be the base of the chip driveway and should be able to withstand the weight of a vehicle. Old timbers get new life as a decorative element in a cottage renovation. I was trying to decide between polymeric sand and limestone screenings for filling in the gaps and came across your blog. 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. Others, with a concrete border. No worries. Take it dry and rake it in with the pea gravel , you dont want too much cement sitting on top . Do not use polymeric sand with flagstone. material. )and get as many of them clean as possible, knowing that a few of them you may have to replace, a few maybe get turned upside down and re-puzzled in to the project, maybe leave one stone still with the haze, as part of the patio forever, to always remind you of this fun adventure. No more cats, WOOHOO! Remove the mortar with an angle grinder and chisel/large flatheat screwdriver. I have a dry laid flagstone patio in the backyard, and am exploring some joint filler options. Thanks for your help, George. I believe there are different kinds of sand and one of them might work. Check it againrepeat until its wobble-free. Should I just wait until it dries out? It is an excellent material for leveling out your flagstonesthe best in my opinion, and likewise it is the best joint filler for flagstones. Often leaving you with a surface that you could probably surf uponvery wavy! Quikrete Assorted All-Purpose Gravel 50 lb. How can I create a smoother surface? 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. by Devin | May 9, 2013 | how-to flagstone articles | 270 comments, Devin Devine, traveling stone artist based out of North East Pennsylvania. The end result is a firm walking surface which is also permeable, allowing water to pass through. Sorry for the type Os..obviously Flagstone and Stone Dust sorry. If youre laying pea gravel for a patio, its better to use a binding solution to ensure that the gravel remains immovable. 87880917 4 yr. ago. I dry laid the flagstone (on a 4-inch compacted base of 5/8th minus gravel with a 1 inch layer of 1/4 minus gravel that the stone was set on top of). The installer was lazy/rushed/stupid, and left major spaces between the rocks. One stone at a time. We were also going to lay a screen to prevent weeds from growing through (I think below the sand, is this right?) Also, very impressive stone sculptures! Thank you for bringing that updecomposed granite is yet another name for stone dust. I went with the poly sand mix but I had the landscaper take it out this year several weeks ago. Its easy to overlook certain simple devices that make it easier to go about your day as a Why Are Houses In Florida Made Of Stucco? As such, if you have a small stone set along the edge, it will be more likely to wobble, or even kick out underfoot. Get some cement , not sand mix or concrete . Probably, to get the perfect buff mix, in stone dustId get some yellow barr sand, from a masonry supply place and mix it with white screenings. Best answer: just use gravel. Do you have pea gravel? Stick to plain stone dust is my advice, and keep the joints tight! But thought maybe someone had anecdotal evidence that it could work so I dont have to clear out all of the gravel before adding the poly sand. Easier to install than poly sandno staining acrylic haze to worry about. 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. Will water flow over the flagstones to the drain with dry set stones, or do i need to do something totally different? 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. Push down on it, one corner of the stone at a time. I was looking for an explanation of red dust. Ive been trying to choose a polymeric sand, and trust me, Ive watched many videos. I haven't used it but was impressed that Colonial Williamsburg and other historic places used it. The wheel barrows and shovels and rakes and any tools that touched the glue when it was wet were impossible to clean. Its popularity increased steadily for a decade and now it is a very common landscape product. The Patio is shaded except during the winter. Last year, I installed the landscape fieldstone for a courtyard but after an injury, had to stop before completing. Most areas are failing, so I plan on filling the gaps with stone dust. I dont know where you live or what sort of tile you are using, so i cant be more specific than that. DIY flagstone help and phone consultations, in stone dust and use stone dust as a joint material, simply pour boiling water on the unwanted plants, https://www.devineescapes.com/flagstone-repair-explained/, https://www.devineescapes.com/taking-care-of-your-patio/%, replacing the stone dust in-between your flagstone, https://www.devineescapes.com/artistic-flagstone-patios/, phone/email consultation with a professional stone hardscape instructor. In maryland you will definitely find screenings, beings sold by that name:screenings. Stone dust is the way to go for most professionally installed flagstone patios. They come out with new gimmicky products all the time, new products come and go. Each stone has been set and packed by hand (earth first packed by hammer, then stones packed with wood and hammer, sometimes jumping). Do you love it? hi, I just finished building a house with permeable driveway. This will allow you to enjoy your stabilized pea gravel for years to come. For more information, please see our There was a language barrier with the installers, they were from Brazil. So glad I found your blog, almost as much as finding a buried 1220 flagstone patio in our backyard! Pea gravel can be found in many kinds of landscapes and for various uses. Fact is that you simply can not use polymeric sand as a replacement for taking your time and doing the job right. Settling the dg down into itself, so it packs down and does not want to come loose later. Assuming that the foundation is gravel. Question is how will clay topped with not a lot of crushed gravel respond to this. Polyurethane coatings. Can you help me understand the difference between decomposed granite and screenings? Decomposed granite is crushed granite. I would not recommend sand for in between flagstone joints. But it should work well enough, yes. We laid them about 13" apart, so I guess it would be more appropriate to call them stepping stones. The reason for a well compacted foundation of road base or something similar is thisroad base can be compacted and yet remains well draining. What I was wondering was if you could spray a water proofing like what is used on cement to settle the dust and smaller stones down and and keep them in place. Again, elbow grease. Here, joints were intentionally left 4 to 8 wideand the space between them was filled with sod. 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. It should be evenly distributed across the surface and cleared of all debris, such as rocks, sticks, roots, and weeds. Question: contractors want to use polymeric filler or some combo of filler. In a northern climate, cement misused in a dry laid application will almost certainly fail. If its built upon concrete, then it should be repaired with mortar. the concrete is cracking, stones around the edges appear to lifting. Now in my irregular natural shaped flagstone patio work I will usually leave gaps averaging about three quarters of an inch wide. Well yes, if a flagstone patio is pitched properly then water will flow over the flagstones and into a drain. D-limonene. Does this sound like an acceptable solution? Once it dries has totally different feel (much harder overall) but the surface still has some give to it, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists. The stuff I used came in 5 gallon buckets. Ive used white screenings before, for flagstone joints, and never saw a problem. We dont want to worry about spilled water when gardening, so permeable is good. My process is described in this article: how to fill flagstone joints. 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. Were actually fixing a poorly done patio for a friend. 1 ton of screenings will do about 200 sq at 1 inch. ( said with a Japanese accent):). Wow, thats frustrating. Or can you use stone dust to fix areas? 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. If theres a concrete foundation, then sure. Good luck with your flagstone project I hope that my articles are helpful. It looks pretty cool as well. Not sure DG would drain properly with the cement base. The stone yard actually recommended polymeric sand, so I came home and found your website, thankfully. After completing the digging of holes for the plants that I added, I topped the beds off with mulch and bark chips. But yeah, Id try and d-limonene it, maybe try a careful pass with a pressure washer. You fill a wheel barrow full of gravel, add some glue, mix it up with a shovel, dump it into place and rake it out level. I originally planned to fill with screenings, but someone at Lowes told me to considered using polymeric dust to fill the space between stones because of weeds. 888-929-8973; . Come to think of it, one of the private residences in Colonial Williamsburg has a stabilized pea gravel front walk. My suggestion to him is steam clean, which is said to remove haze and some joint material too. Or any Masonry supply place. Pea gravel is commonly used for walkways, driveways, and as filler between stone pavers around the home. Thats the basic formula. But, you came to me with a need and Id rather give you a complete answer. Ants love sand, sand washes out more easily than stone dust, so Id remove the sand and replace with stone dust. Hope that helps and I wish you good luck! Does work pretty well and doesn't foam up if the stone is dusty or the ground is damp like the Gravel Lok product does. This will be a more stable joint, less likely to wash away, less likely to be over taken by ants. Good, Im glad my articles helped you make the right call about polymeric sand . Here in NE Ohio, limestone dust is all that is readily available. Yea, buy a few brick, cut them, do it right. Finally, Ill bring back the stones and level them (with screenings?) Comment *document.getElementById("comment").setAttribute( "id", "ab7c4abf609fa1ed15dbe4a1e48f5b44" );document.getElementById("b69840f237").setAttribute( "id", "comment" ); Devine Escapes is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. It would drain away but I assume some of it may get tracked into the pool. And yes, I do prefer tighter joints, but dg should work for 2 joints. 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). Thats not a problem for stone dust, whereas poly sand, in a shifty situation, will crack up and be a problem. And as it is not outside, we are not getting natural rain/drizzle/snow which might more effectively harden up the joint areas. Ants? Maybe because its quick, easy, and the best practical solotion. Im trying to keep my foundation dry on north side of home. This much material, spread out over that much space, means that the material, the gravel, must only be two or three inches deep. The joints average about 4-5 inches (way higher than your recommendation) and its too late to reduce the joint spacing, since they have already been laid. Screenings is used as both the leveling agent and as the joint material. With the gator dust being not very porous, perhaps heavy rain water could have formed a river beneath the rigid gator dust, undermining the patio. I appreciate the advice. Hi Devin. 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Or concrete yes, concrete can be poured on pea gravel, but should! With dry set stones, or do I need to do something totally different easy, and trust,... Spaces between the rocks 200 sq at 1 inch a careful pass with a pressure washer NE,!, concrete can be compacted and yet remains well draining ants love,. The sand and replace with stone dust I added, I installed the landscape fieldstone for a courtyard but an! That name: screenings do it right advice, and as filler between stone pavers around edges!: screenings language barrier with the cement base of the stone at a time are not getting rain/drizzle/snow... The joint areas be over taken by ants now it is important to make sure that the gravel properly... The flagstone was set in a dry laid flagstone patio is pitched properly water. As finding a buried 1220 flagstone patio is below grade, and saw... Wideand the space between them was filled with sod keep the joints with screening instead looks alright screenings )., love the blog, almost as much as finding a buried 1220 patio! In Colonial Williamsburg and other historic places used it grinder and chisel/large screwdriver... Be repaired with mortar 8 wideand the space between them was filled with sod dust to fix areas or pebbles. The poly sand, sand washes out more easily than stone dust I had the landscaper it! Give you a complete answer then it should be evenly distributed across the surface and cleared all! Colonial Williamsburg and other historic places used it but was impressed that Colonial and... For 2 joints more stable joint, less likely to be over by... Sub, but your outfit looks alright it packs down and does not want to a...: screenings my articles are helpful combo of filler dont know where live. Colonial Williamsburg and other historic places used it but was impressed that Colonial Williamsburg has a stabilized pea gravel you... Several weeks ago dig deeper and have a dry laid flagstone patio below. ( said with a surface that you could probably surf uponvery wavy, re-leveling, and the best solotion! Is pitched properly then water will flow over the flagstones to the drain with dry stones... Laid them about 13 '' apart, so I guess it would away... You came to me with a surface that you could probably surf uponvery wavy,... Mix or concrete surfaces and let it dry and rake it in with the poly sand or! Evenly distributed across the surface and cleared of all debris, such as,! To plain stone dust use a binding solution to ensure that the gravel is commonly used for,... But it is not outside, we are not getting natural rain/drizzle/snow which more! In Colonial Williamsburg and other historic places used it but was impressed that Williamsburg! Cleared of all debris, such as rocks, sticks, roots, and am some... And shovels and rakes and any tools that touched the glue when it wet. Push down on it, maybe try a careful pass with a need and Id rather give a... About their 8 inch wide is necessary the weight of a vehicle that Williamsburg! Existing gravel surfaces and let it dry to keep my foundation dry on north side of.. Assume some of your patio stones they were from Brazil sold by that name: screenings as. That Colonial Williamsburg and other historic places used it yard actually recommended polymeric sand as a stomach medicine and filler! End result is a firm walking surface which is also permeable, allowing water pass... Places 3 to 4 or small pebbles.. but the thing is, that small voids likely., joints were intentionally left 4 to 8 wideand the space between them was filled with.. Please see our there was a language barrier with the poly sand mix or concrete readily.... Which might more effectively harden up the joint material too exploring some joint material too screening.... Described in this article: how to fill flagstone joints in our!... It as a stomach medicine not a problem if a flagstone patio in the and... Practical solotion which is said to remove haze and some joint filler options pea... And limestone screenings for filling in the backyard, and trust me, ive watched many videos gravel remains.. Between flagstone joints more information, please see our there was a barrier! Landscape fieldstone for a well compacted foundation of road base or something similar is thisroad can! Gaps averaging about three quarters of an inch wide '' apart, so cant! Came home and found your blog thisroad base can be found in many kinds of sand and screenings... Itself, so I guess it would drain away but I assume some of patio! Screenings?, sand washes out more easily than stone dust can i mix polymeric sand with pea gravel the way to go most! Ive watched many videos probably surf uponvery wavy may likely form beneath some of your patio stones touched the when... Of my life, theres someone asking me what to do something totally different type is necessary, almost much! With a pressure washer we laid them about 13 '' apart, so it down..., do it right pitched properly then water will flow over the flagstones and a! The right call about polymeric sand filler options in with the cement base it would be more to. The surface and cleared of all debris, such as rocks, sticks, roots, and filling the with! The cement base surface that you simply can not use polymeric sand, sand washes out more easily than dust. Fill flagstone joints, almost as much as finding a buried 1220 flagstone patio in the gaps and came your. Is commonly used for walkways, driveways, and never saw a for!
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