{"id":10579,"date":"2026-06-02T21:35:59","date_gmt":"2026-06-02T18:05:59","guid":{"rendered":"https:\/\/bidak-co.com\/%d8%ad%db%8c%d8%a7%d8%b7\/"},"modified":"2026-06-14T21:40:24","modified_gmt":"2026-06-14T18:10:24","slug":"yard","status":"publish","type":"post","link":"https:\/\/bidak-co.com\/en\/yard\/","title":{"rendered":"Why does the yard floor swell after rain"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10579\" class=\"elementor elementor-10579 elementor-10352\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aadd8ed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aadd8ed\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5a8ce63\" data-id=\"5a8ce63\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-48142e7 elementor-widget elementor-widget-heading\" data-id=\"48142e7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">That yard floor that humps every time it rains.<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41ef4ea elementor-widget elementor-widget-text-editor\" data-id=\"41ef4ea\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Have you ever experienced this, or seen it at a friend&#8217;s house?<\/span><\/strong><span class=\"\">\u00a0A beautiful yard paved with stone or <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/adhesive\/\">tile<\/a> <\/span><\/span>\u2014 everything neat and level. But when the first autumn rain falls, things change. Some stones suddenly rise up. Flowerpots that were sitting on the ground tilt and become unbalanced. You might even hear the sound of tiles cracking.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Many people think the problem lies with the <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tile\">tile<\/a> <\/span><\/span>or stone itself \u2014 but they&#8217;re wrong. The root cause is elsewhere. In this article, we want to understand how rainwater can hollow out the ground beneath a seemingly solid floor, what property of the soil beneath the yard causes it to swell when exposed to water, and \u2014 more importantly \u2014 if this has happened to your yard, how you can stop the damage from getting worse.<\/span><\/p><ul><li><p class=\"ds-markdown-paragraph\"><span class=\"\">Is the soil under your yard clay or sand?<\/span><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><span class=\"\">Through which paths does rainwater make its way under the paving?<\/span><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><span class=\"\">How can we prevent clay soil from swelling before laying the paving?<\/span><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><span class=\"\">Now that your yard has heaved, what&#8217;s the solution?<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-072d1f1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"072d1f1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9b00d67\" data-id=\"9b00d67\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dff5aff elementor-widget elementor-widget-heading\" data-id=\"dff5aff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Is the soil under your yard clay or sand? (Know the deadly difference between the two.)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7966969 elementor-widget elementor-widget-text-editor\" data-id=\"7966969\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Let&#8217;s get to the main issue.<\/span><\/strong><span class=\"\">\u00a0What causes your yard <span style=\"text-decoration: underline; color: #0000ff;\"><span><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/flooring\/\">floor<\/a> <\/span><\/span>to swell after rain, push itself upward, and make flowerpots tilt has nothing to do with the tiles or stones. The real culprit is the soil beneath the paving. Soils are different. Some behave normally when exposed to water, while others act strangely and dangerously.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">There are two main types of soil:\u00a0<\/span><strong><span class=\"\">sandy soils<\/span><\/strong><span class=\"\">\u00a0and\u00a0<\/span><strong><span class=\"\">clay soils<\/span><\/strong><span class=\"\">. Sandy soil works like a sieve. Water easily passes down between its particles. If the soil under your yard is sand, when it rains, the water quickly drains deep into the ground, and that&#8217;s it \u2014 nothing happens. The paving doesn&#8217;t rise.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">But clay soil is a completely different story. Clay particles are very fine and egg-shaped. These particles have a strange property. When they are dry, they remain compacted and stuck together. But as soon as water reaches them, they open up like a sponge. Water enters between the clay particles and pushes them apart. The result is that the volume of clay soil expands several times. In construction science, this phenomenon is called\u00a0<\/span><strong><span class=\"\">soil swelling<\/span><\/strong><span class=\"\">\u00a0or\u00a0<\/span><strong><span class=\"\">heave<\/span><\/strong><span class=\"\">.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Now imagine there is a layer of compacted clay soil beneath your yard floor. This layer has been dry for years, and nothing has happened. But then a heavy rain falls. Water seeps through the joints in the paving and penetrates below. The thirsty clay soil sees the water and begins to swell. Its volume increases. That extra volume has nowhere to go. So it pushes upward against the paving above. The tiles and stones bend, rise up, and the flowerpots on top become tilted.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><span class=\"\">This pressure is sometimes so strong that it can crack thick tiles.<\/span><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">So the first step to solving this problem is to find out what kind of soil lies beneath your yard. A simple way is to dig a small hole, take some soil, add a little water, and see what happens. If it becomes sticky like wet dough and cracks when it dries, it contains clay. If it acts like loose sand and water passes through it, then it&#8217;s sandy soil.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Now we move on to the next part: how water finds its way to reach beneath the paving.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c256fb4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c256fb4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d2503ef\" data-id=\"d2503ef\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6a8b4f2 elementor-widget elementor-widget-image\" data-id=\"6a8b4f2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor-1024x683-1.jpg\" class=\"attachment-large size-large wp-image-10360\" alt=\"\u062d\u06cc\u0627\u0637\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor-1024x683-1.jpg 1024w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor-1024x683-1-300x200.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor-1024x683-1-768x512.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor-1024x683-1-600x400.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-192efa3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"192efa3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1806f95\" data-id=\"1806f95\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0691da1 elementor-widget elementor-widget-heading\" data-id=\"0691da1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Through which paths does rainwater make its way under the paving?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0450d1f elementor-widget elementor-widget-text-editor\" data-id=\"0450d1f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">We said that clay soil by itself isn&#8217;t dangerous. As long as water doesn&#8217;t reach it, nothing happens. The problem starts when water finds a way to get under the paving and into the clay soil. Now let&#8217;s see what paths rainwater takes to infiltrate.<\/span><\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First: the joints between tiles and stones<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">No paving is completely seamless. Between every two tiles there is a thin gap that installers fill with grout or mortar. These grout lines are the first points that water attacks. Ordinary cement grouts develop micro-cracks over time. The human eye can barely see these micro-cracks, but water droplets pass through them like an open door. Rainwater sits on the surface, slowly seeps into these tiny cracks, and makes its way under the paving.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second: the edges and borders of the paving<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">The junction where the yard floor meets the wall or building foundation is usually the weakest point. Many contractors don&#8217;t seal these edges properly. Rainwater collects along the wall and penetrates beneath the paving from there. If there are flower beds or regularly watered planters around the yard, this problem multiplies.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Third: cracks in the paving itself<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Sometimes a tile or stone cracks. These cracks create a direct, unobstructed path for water to reach below the paving. Even a small hairline crack is enough for water to infiltrate. Water forces its way through these openings and reaches the underlying layers.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fourth: improper elevation of the yard floor relative to its surroundings<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">If the yard floor is higher than the surrounding garden, sidewalk, or street, rainwater drains away faster and has less time to infiltrate. But if the yard floor is lower or level with its surroundings, water pools on top. Standing water has plenty of time to seep into joints and cracks. This water remains on the surface for hours and gradually finds its way under the paving.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fifth: lack of drainage or faulty drainage<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Drainage is a system of underground pipes that collect excess water from beneath the soil and direct it away. If the yard has no drainage, or if clogs or damage impair its function, rainwater remains underground and keeps the clay soil wet. Each rainfall adds more moisture until the clay soil becomes fully saturated and swells.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Now that we understand the paths water takes to get under the paving, in the next section we&#8217;ll look at how to tell whether the problem in your yard is caused by clay soil or by something else.<\/span><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-456465b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"456465b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-04eec1e\" data-id=\"04eec1e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5e8d557 elementor-widget elementor-widget-image\" data-id=\"5e8d557\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c-1024x768.webp\" class=\"attachment-large size-large wp-image-10363\" alt=\"\u062d\u06cc\u0627\u0637\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c-1024x768.webp 1024w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c-300x225.webp 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c-768x576.webp 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c-600x450.webp 600w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/dalil-b-c.webp 1142w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c7b415c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c7b415c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-37f8012\" data-id=\"37f8012\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff7927c elementor-widget elementor-widget-heading\" data-id=\"ff7927c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How can we tell whether the problem in our yard is caused by clay soil or by something else?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dcb2a6 elementor-widget elementor-widget-text-editor\" data-id=\"7dcb2a6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"ds-virtual-list-items _6f2c522\"><div class=\"ds-virtual-list-visible-items\"><div class=\"_4f9bf79 d7dc56a8 _43c05b5\" data-virtual-list-item-key=\"26\"><div class=\"ds-message _63c77b1\"><div class=\"ds-markdown ds-assistant-message-main-content\"><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Many people, when they see their yard floor has heaved and flowerpots have tilted, first think the tiles or stones are to blame. Then they think maybe the contractor didn&#8217;t do the job properly. But as we&#8217;ve said, the real culprit is often the clay soil beneath the paving. So how can you tell whether the problem is the soil or something else? There are a few simple ways.<\/span><\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First: a test pit<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Choose a quiet spot in the yard. Dig a shallow hole, about 30 by 30 centimeters, until you reach the layer beneath the paving. Take a handful of soil from that depth. Add some water and knead it with your hand. If the soil becomes sticky like wet dough and sticks to your hand, it contains clay. If it remains loose and grainy like sand and water drips through it, it does not contain clay. Also, if the dried soil cracks after a few hours, that&#8217;s another sign of clay.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second: watch the timing of the heave<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Pay attention to exactly when the yard floor heaves. If the floor starts rising just a few hours after heavy rain or excessive watering, that&#8217;s a sign that the clay soil beneath has quickly absorbed water and swelled. If the problem were something else \u2014 like a broken pipe \u2014 the heaving would happen more gradually and slowly.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Third: recurrence of the problem after repair<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">If you&#8217;ve already removed and reinstalled the yard floor once, but after a while the same thing happened again, you can be almost certain the problem is with the soil beneath. If the issue were with the tiles or adhesive, a single redo would have fixed it. But if the clay soil swells, no matter how many times you replace the flooring, it will heave again after the next rain.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fourth: the pattern of tile cracking<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">When clay soil beneath the paving swells, it doesn&#8217;t apply pressure evenly to all tiles. Typically, tiles crack in the middle or their edges crumble. If the cracks look more like bending and rising than sudden breaking, that again points to the slow, gradual pressure of clay soil.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fifth: the smell or color of the soil<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Clay soil is usually reddish, brownish, or yellowish, and when wet it gives off a distinct smell like damp, musty earth. Sandy soil is lighter in <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/paint-and-patina\/\">color<\/a> <\/span><\/span>and has no particular smell. If you see such soil when digging up the floor, there&#8217;s no doubt left.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">But be careful \u2014 it&#8217;s not always the soil&#8217;s fault<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Sometimes the heaving has nothing to do with clay soil. It could be that a water pipe under the yard has burst and is constantly feeding water beneath the paving, or the groundwater table has risen, or the drainage is clogged and water is accumulating under the floor. The way to tell is to see whether the heaving happens only after rain, or whether the floor is rising all the time, even without rain. If it&#8217;s constant, look for a broken pipe or faulty drainage. If it&#8217;s only after rain, the culprit is clay soil.<\/span><\/p><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-39c8ab5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"39c8ab5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6cd88f1\" data-id=\"6cd88f1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e7698bb elementor-widget elementor-widget-image\" data-id=\"e7698bb\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"424\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor1.jpg\" class=\"attachment-large size-large wp-image-10369\" alt=\"\u062d\u06cc\u0627\u0637\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor1.jpg 850w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor1-300x159.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor1-768x407.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/cause-of-rising-ceramic-floor1-600x318.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-886fb9d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"886fb9d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-304d90b\" data-id=\"304d90b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d85f6f6 elementor-widget elementor-widget-heading\" data-id=\"d85f6f6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">How can we prevent clay soil from swelling before laying the paving?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-486d034 elementor-widget elementor-widget-text-editor\" data-id=\"486d034\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">If you are about to pave your yard for the first time, or if you&#8217;re building a new property&#8217;s yard, you have a golden opportunity to prevent the problem. There are a few simple measures that, if you do them now, you will never experience floor heaving or tilting flowerpots.<\/span><\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First: replace clay soil with sandy soil<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">The best and most reliable method is to remove the clay soil layer from beneath the yard. Excavate to a depth of thirty to forty centimeters from the surface and replace it with sandy, granular soil. Sand allows water to pass through and does not swell. This costs money, but you do it once and you&#8217;re worry-free for years.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second: lay a bed of gravel and crushed stone underneath<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">If you can&#8217;t replace all the soil, at least put down a twenty-centimeter layer of coarse gravel and crushed stone over the clay. This gravel layer acts as a buffer. Rainwater that seeps through the paving, instead of reaching the clay directly, spreads among the stones and has a chance to drain away.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Third: slope the floor properly<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Wherever water pools, problems arise. Build the yard floor with a gentle slope directing water toward one or two drainage points. The standard slope is about one to two centimeters per meter \u2014 meaning over a distance of ten meters, the floor should drop ten to twenty centimeters.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fourth: install subsurface drainage<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Drainage consists of perforated pipes laid deep beneath the surface. These pipes collect excess water and direct it to a dry well or outside the yard. Good drainage acts like a respiratory system for the soil beneath the yard. It removes water quickly from below and prevents the clay soil from becoming saturated and swelling.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fifth: fill the joints with waterproof grout<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Ordinary cement grout allows water to pass through over time. Use polymer or epoxy grouts instead. Once dry, these grouts create an impermeable layer between the <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/tiling-2\/\">tiles<\/a><\/span><\/span>. Water cannot seep through them and reach below the paving.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Now we move on to the final section.<\/span><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aeaeb72 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aeaeb72\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-87e2e43\" data-id=\"87e2e43\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-246ce5a elementor-widget elementor-widget-heading\" data-id=\"246ce5a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Now that our yard has heaved, what's the solution?<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f4cac0 elementor-widget elementor-widget-text-editor\" data-id=\"9f4cac0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Keep in mind that before any repairs, be sure to consult a specialist and confirm the problem!<\/span><\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">If the problem is mild<\/span><\/strong><span class=\"\">\u00a0and only a few <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/tile-repair\/\">tiles<\/a> <\/span><\/span>have risen, remove those sections, take out the clay soil, and fill the area with sand and gravel. Then put the tiles back in place.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">If the problem is moderate<\/span><\/strong><span class=\"\">, remove a few lines of paving and install a drainage pipe beneath them. The excess water will drain away, and the pressure on the clay soil will be reduced.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">If the problem is severe<\/span><\/strong><span class=\"\">\u00a0and most of the floor is damaged, there is no choice but to completely demolish it. Remove the entire floor. Excavate and discard the clay soil. Replace it with sand and gravel, then install new paving.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">One important note:<\/span><\/strong><span class=\"\">\u00a0before doing anything, wait until the ground is completely dry. If you work on wet soil, the floor will become uneven again once it dries.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Final word:<\/span><\/strong><span class=\"\">\u00a0find the root cause. If it&#8217;s clay soil, you must keep water away from it. Drainage, proper sloping, or soil replacement are the ways to solve this problem. Prevention is always cheaper than cure.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>That yard floor that humps every time it rains. Have you ever experienced this, or seen it at a friend&#8217;s house?\u00a0A beautiful yard paved with stone or tile \u2014 everything neat and level. But when the first autumn rain falls, things change. Some stones suddenly rise up. Flowerpots that were sitting on the ground tilt [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":10355,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[206],"tags":[],"class_list":["post-10579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-206"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.6 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Yard - Why does the yard floor swell after rain - Bidak Chemical Industries<\/title>\n<meta name=\"description\" content=\"What causes yard stones and tiles to rise and hump after rain? 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