{"id":9966,"date":"2026-04-07T19:14:58","date_gmt":"2026-04-07T15:44:58","guid":{"rendered":"https:\/\/bidak-co.com\/%d8%b1%d8%b7%d9%88%d8%a8%d8%aa\/"},"modified":"2026-06-14T21:08:45","modified_gmt":"2026-06-14T17:38:45","slug":"moisture","status":"publish","type":"post","link":"https:\/\/bidak-co.com\/en\/moisture\/","title":{"rendered":"How to prevent water and moisture from penetrating the back of tiles? Review of basic methods"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"9966\" class=\"elementor elementor-9966 elementor-9884\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9a05658 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9a05658\" 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-fcfccc3\" data-id=\"fcfccc3\" 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-c111267 elementor-widget elementor-widget-heading\" data-id=\"c111267\" 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\">How to prevent water and moisture from penetrating to the back of the tile? A review of principled methods<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f991f8d elementor-widget elementor-widget-text-editor\" data-id=\"f991f8d\" 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>Water and moisture penetration to the back of the tile<\/strong>\u00a0is one of the most common problems in\u00a0<strong><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\/waterproof\/\">bathrooms<\/a><\/span><\/span>, toilets, <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\/kitchen\/\">kitchens<\/a><\/span><\/span>, and even balconies.<\/strong>\u00a0This problem usually manifests itself through signs such as\u00a0<strong>darkened grout lines, efflorescence, loosening of tiles, or a musty smell.<\/strong><\/p><p class=\"ds-markdown-paragraph\">In this article, we will specifically examine:<\/p><ul><li><p class=\"ds-markdown-paragraph\">Through what paths\u00a0<strong>water penetrates to the back of the tile<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\">What\u00a0<strong>mistakes<\/strong>\u00a0cause this problem<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Principled methods of preventing water penetration before and after tiling<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\">What\u00a0<strong>materials and tools<\/strong>\u00a0are required and how they should be used<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">The goal is that after reading the article, you will know exactly\u00a0<strong>what to do to prevent water penetration<\/strong>\u00a0and\u00a0<strong>what materials to use.<\/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-4186484 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4186484\" 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-f7018fe\" data-id=\"f7018fe\" 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-417cc30 elementor-widget elementor-widget-heading\" data-id=\"417cc30\" 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\">From where exactly does water penetrate to the back of the tile?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25ef2a3 elementor-widget elementor-widget-text-editor\" data-id=\"25ef2a3\" 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>Many people think that water only passes through the gaps between <span style=\"text-decoration: underline; color: #0000ff;\"><span style=\"text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/moroccan-tile\/\">tiles<\/a><\/span><\/span>. However, in practice, the paths of water penetration are more diverse, and sometimes even intact grouting still allows moisture to reach the back of the tile. Therefore, understanding these paths is very important for preventing water from penetrating to the back of the tile.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>One of the most important paths is the gaps and grouting.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>For example, regular grouting<\/strong>\u00a0gradually becomes slightly porous over time due to washing, detergents, and temperature changes. When this happens,\u00a0<strong>water gradually reaches the underlying layer.<\/strong>\u00a0As a result, to\u00a0<strong>prevent water penetration to the back of the tile,<\/strong>\u00a0we must care for and maintain the grouting properly. This penetration is not visible at first, but after a while\u00a0<strong>its effects appear.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>Another important path is improper substrate preparation.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>Specifically, if we do not properly prepare the surface underneath<\/strong>\u00a0before tile installation, the mortar 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\/tile-glue\/\">adhesive<\/a> <\/span><\/span>cannot adhere uniformly to the surface. In this case,\u00a0<strong>tiny empty spaces<\/strong>\u00a0remain behind the tile, and these spaces become places where\u00a0<strong>moisture accumulates.<\/strong>\u00a0Consequently,\u00a0<strong>principled substrate preparation<\/strong>\u00a0represents the first step in\u00a0<strong>preventing water penetration to the back of the tile.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>The next factor is very fine cracks in the wall or floor.<\/strong><\/h6><p class=\"ds-markdown-paragraph\">These cracks are sometimes\u00a0<strong>invisible to the naked eye;<\/strong>\u00a0nevertheless,\u00a0<strong>water easily passes through them.<\/strong>\u00a0When moisture reaches the underlying layers, it gradually causes the tile to\u00a0<strong>detach<\/strong>\u00a0or become\u00a0<strong>hollow (drummy).<\/strong>\u00a0Therefore, we must also\u00a0<strong>repair small cracks<\/strong>\u00a0to block the path of water penetration to the back of the tile.<\/p><p class=\"ds-markdown-paragraph\"><strong>In addition, failing to use waterproofing materials in humid environments<\/strong>\u00a0is one of the main causes of this problem. For instance, in spaces such as\u00a0<strong>bathrooms or toilets,<\/strong>\u00a0<strong>constant moisture<\/strong>\u00a0exists, and if we use only\u00a0<strong>regular mortar or adhesive,<\/strong>\u00a0these materials alone\u00a0<strong>cannot sufficiently prevent<\/strong>\u00a0water penetration to the back of the tile.<\/p><p class=\"ds-markdown-paragraph\"><strong>Finally, we should mention the deterioration of materials over time.<\/strong>\u00a0Even if we do the job\u00a0<strong>completely correctly<\/strong>\u00a0in the beginning, after several years the grouting or protective layers may\u00a0<strong>lose their original properties,<\/strong>\u00a0and thus the path of water penetration may\u00a0<strong>open up.<\/strong>\u00a0Hence,\u00a0<strong>regular maintenance and periodic inspection of materials<\/strong>\u00a0play an\u00a0<strong>essential<\/strong>\u00a0role in preventing water penetration to the back of the tile.<\/p><p class=\"ds-markdown-paragraph\"><strong>Understanding these paths is important<\/strong>\u00a0because we can choose the right solution only when we know\u00a0<strong>exactly where water enters from<\/strong>\u00a0and what measures we should take to\u00a0<strong>prevent water penetration to the back of the tile.<\/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-af20354 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"af20354\" 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-5f8672a\" data-id=\"5f8672a\" 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-7f9802c elementor-widget elementor-widget-image\" data-id=\"7f9802c\" 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=\"655\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210049_Chrome.jpg\" class=\"attachment-large size-large wp-image-9892\" alt=\"\u0631\u0637\u0648\u0628\u062a\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210049_Chrome.jpg 998w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210049_Chrome-300x246.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210049_Chrome-768x629.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210049_Chrome-600x491.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-fdb7546 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fdb7546\" 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-c638ded\" data-id=\"c638ded\" 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-247e70b elementor-widget elementor-widget-heading\" data-id=\"247e70b\" 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\">What mistakes cause the tiling to not withstand water?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2856d10 elementor-widget elementor-widget-text-editor\" data-id=\"2856d10\" 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>In many projects, the problem of water penetration to the back of 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\/tile-repair\/\">tile<\/a> <\/span><\/span>occurs because several important points are overlooked during execution. These mistakes are usually not visible at first; however, they reveal themselves after a few months or a few years.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>One of the most common mistakes is not properly preparing the surface before tiling.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>Specifically, the surface underneath must be clean, dust-free, grease-free, and as uniform as possible. When we do not take this step seriously, 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\/tile-adhesive-2\/\">adhesive<\/a> <\/span><\/span>or mortar does not bond well to the surface, and small empty spaces remain between the tile and the wall or floor. Consequently, these spaces gradually become places where moisture accumulates.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>Another important mistake is using unsuitable mortar or adhesive for humid environments.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>For example, some materials are designed for dry spaces and do not have sufficient resistance to constant moisture. Therefore, using such materials in bathrooms, toilets, or terraces causes water to gradually pass through the layers.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>The next issue is the lack of a waterproofing layer before tile installation.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>Many people think that the tile and grouting themselves prevent water from passing through. However, in principled work, we apply a protective layer on the surface before tile installation so that if water passes through the grout, it does not reach the underlying layers. As a result, omitting this step is one of the main causes of dampness behind the tile walls.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>Another mistake is weak or unprincipled grouting.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>If we do not completely fill the grout lines or use unsuitable materials, water very easily enters through this path. Moreover, in some cases, the grouting also cracks over time, and these cracks open up the path of water penetration.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>In addition, not respecting the drying time of the layers is a common error. If we do the tiling before the substrate or protective layers are completely dry, moisture becomes trapped in the layers and will gradually cause the tile to detach or become hollow (drummy).<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>Another point that receives less attention is improper sloping of floors.<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>When we do not properly direct water toward the floor drain, it accumulates in certain areas and finds more opportunity to penetrate.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>These mistakes seem simple on the surface; nevertheless, each one can cause even a brand-new tiling job to develop problems within a short period of time.<\/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-b43d441 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b43d441\" 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-fa85599\" data-id=\"fa85599\" 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-0052dfc elementor-widget elementor-widget-image\" data-id=\"0052dfc\" 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=\"785\" height=\"1024\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome-785x1024.jpg\" class=\"attachment-large size-large wp-image-9918\" alt=\"\u0631\u0637\u0648\u0628\u062a\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome-785x1024.jpg 785w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome-230x300.jpg 230w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome-768x1001.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome-600x782.jpg 600w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210352_Chrome.jpg 853w\" sizes=\"(max-width: 785px) 100vw, 785px\" \/>\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-c54c35a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c54c35a\" 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-774be07\" data-id=\"774be07\" 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-b66a4f9 elementor-widget elementor-widget-heading\" data-id=\"b66a4f9\" 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\">Exactly how to prevent water from penetrating behind the tile? (Principled step-by-step method)<\/h3>\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-3262e9c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3262e9c\" 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-50 elementor-top-column elementor-element elementor-element-dfd8449\" data-id=\"dfd8449\" 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-3815b93 elementor-widget elementor-widget-text-editor\" data-id=\"3815b93\" 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>This section is the most important part of the article. If the following steps are executed properly, the path of water penetration will be effectively closed, and the likelihood of dampness, <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\/\">tile<\/a> <\/span><\/span>loosening, and substrate deterioration will be minimized. Here, I explain the process in a principled and practical manner\u2014neither oversimplified nor vague.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>1. Take the substrate seriously; everything starts here<\/strong><\/h6><p class=\"ds-markdown-paragraph\">Before any waterproofing or tiling, the condition of the surface must be inspected. The wall or floor must be:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Completely clean<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Free of dust, grease, and loose particles<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Free of active cracks<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Free of free moisture<\/strong><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">If the\u00a0<strong>cementitious or concrete surface has cracks,<\/strong>\u00a0the cracks must be repaired with\u00a0<strong>appropriate repair mortar or cement-based repair fillers.<\/strong>\u00a0If there are\u00a0<strong>hollow or loose sections,<\/strong>\u00a0that area must be\u00a0<strong>removed and repaired again.<\/strong>\u00a0Applying waterproofing over a\u00a0<strong>loose surface<\/strong>\u00a0is practically useless.<\/p><p class=\"ds-markdown-paragraph\">In\u00a0<strong>bathroom and toilet floors,<\/strong>\u00a0checking the\u00a0<strong>sloping<\/strong>\u00a0is very important. Water must move toward the\u00a0<strong>floor drain without stopping.<\/strong>\u00a0If the proper slope does not exist, it must be\u00a0<strong>corrected first,<\/strong>\u00a0and then proceed to the waterproofing stage.<\/p><h6 class=\"ds-markdown-paragraph\"><strong>2. Applying the waterproofing layer; the most important step of the job<\/strong><\/h6><p class=\"ds-markdown-paragraph\">If you are going to do\u00a0<strong>only one section completely properly,<\/strong>\u00a0it is this step. In\u00a0<strong>humid environments,<\/strong>\u00a0tiles should not be installed directly over\u00a0<strong>regular mortar.<\/strong>\u00a0First, a\u00a0<strong>specialized waterproofing layer<\/strong>\u00a0must be applied over the substrate.<\/p><p class=\"ds-markdown-paragraph\">For this purpose, one of the following options is typically used:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Cementitious waterproofing membranes (two-component or one-component)<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Polymer waterproofing coatings<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Liquid waterproofing membranes specifically for toilets and bathrooms<\/strong><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">After application, these materials create a\u00a0<strong>water-impermeable layer.<\/strong>\u00a0The important point is that this layer must:<\/p><ul><li><p class=\"ds-markdown-paragraph\">Be applied\u00a0<strong>uniformly over the entire surface<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Corners and wall-to-floor junctions<\/strong>\u00a0must be carefully covered<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Be applied in\u00a0<strong>at least two layers<\/strong>\u00a0(the second layer\u00a0<strong>perpendicular to the first layer<\/strong>)<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">In\u00a0<strong>corners and around pipe penetrations,<\/strong>\u00a0it is better to use\u00a0<strong>waterproofing tape or reinforcement<\/strong>\u00a0to reduce the likelihood of cracking.<\/p><p class=\"ds-markdown-paragraph\">After application, the layer must be allowed to\u00a0<strong>dry and cure completely.<\/strong>\u00a0<strong>Rushing this step<\/strong>\u00a0will undo all the effort.<\/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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f71316c\" data-id=\"f71316c\" 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-e042052 elementor-widget elementor-widget-text-editor\" data-id=\"e042052\" 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<h6 class=\"ds-markdown-paragraph\"><strong>3. Using tile adhesive suitable for humid environments<\/strong><\/h6><p class=\"ds-markdown-paragraph\">After applying the\u00a0<strong>waterproofing layer,<\/strong>\u00a0it is time for\u00a0<strong>tile installation.<\/strong>\u00a0In environments such as\u00a0<strong>bathrooms or terraces,<\/strong>\u00a0using\u00a0<strong>traditional mortar<\/strong>\u00a0is not recommended. It is better to use a\u00a0<strong>moisture-resistant tile <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\/porcelain-tile-adhesive\/\">adhesive<\/a><\/span><\/span>.<\/strong><\/p><p class=\"ds-markdown-paragraph\">The adhesive should have the following properties:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>High adhesion<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Resistance to constant moisture<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Appropriate flexibility<\/strong>\u00a0to prevent cracking<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Compatibility<\/strong>\u00a0with the underlying\u00a0<strong>waterproofing layer<\/strong><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">The adhesive should be applied using a\u00a0<strong>notched trowel<\/strong>\u00a0to achieve a\u00a0<strong>uniform thickness.<\/strong>\u00a0Also, it is better for the\u00a0<strong>back of the tile<\/strong>\u00a0to have a\u00a0<strong>thin layer of adhesive<\/strong>\u00a0if needed, so that no\u00a0<strong>empty space<\/strong>\u00a0remains.<\/p><p class=\"ds-markdown-paragraph\">The presence of\u00a0<strong>empty space behind the tile<\/strong>\u00a0is one of the main causes of\u00a0<strong>water accumulation.<\/strong>\u00a0The tile must\u00a0<strong>fully bond to the substrate.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>4. Water-resistant grouting<\/strong><\/h6><p class=\"ds-markdown-paragraph\">Grouting is\u00a0<strong>not just about aesthetics.<\/strong>\u00a0This step is one of the\u00a0<strong>defensive lines<\/strong>\u00a0against\u00a0<strong>water penetration.<\/strong><\/p><p class=\"ds-markdown-paragraph\">In\u00a0<strong>humid environments,<\/strong>\u00a0it is better to use:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Water-resistant polymer grouts<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\">Or\u00a0<strong>epoxy grouts<\/strong>\u00a0in\u00a0<strong>very humid spaces<\/strong><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">The grout must be\u00a0<strong>fully injected into the depth of the joints.<\/strong>\u00a0<strong>Leaving empty space in the grout lines<\/strong>\u00a0means creating a\u00a0<strong>path for water penetration.<\/strong>\u00a0After application,\u00a0<strong>sufficient time<\/strong>\u00a0must also be allowed for\u00a0<strong>complete drying.<\/strong><\/p><p class=\"ds-markdown-paragraph\">When using\u00a0<strong>epoxy grout,<\/strong>\u00a0the resistance to\u00a0<strong>water penetration<\/strong>\u00a0will be much higher, although its application requires more\u00a0<strong>precision and experience.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>5. Sealing sensitive joints with silicone or suitable sealant<\/strong><\/h6><p class=\"ds-markdown-paragraph\">The\u00a0<strong>wall-to-floor junction,<\/strong>\u00a0areas around\u00a0<strong>faucets,<\/strong>\u00a0around the\u00a0<strong>floor drain,<\/strong>\u00a0and the\u00a0<strong>edge of the bathtub<\/strong>\u00a0are\u00a0<strong>very sensitive points.<\/strong>\u00a0These areas typically experience the\u00a0<strong>highest rate of water penetration.<\/strong><\/p><p class=\"ds-markdown-paragraph\">In these areas,\u00a0<strong>flexible moisture-resistant sealants<\/strong>\u00a0should be used. These materials have\u00a0<strong>elasticity<\/strong>\u00a0and do not crack due to\u00a0<strong>temperature changes<\/strong>\u00a0or\u00a0<strong>minor structural movements.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Neglecting these areas<\/strong>\u00a0will cause water to penetrate through these very points, even with\u00a0<strong>complete waterproofing.<\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong>6. Final test before use<\/strong><\/h6><p class=\"ds-markdown-paragraph\">After finishing the work, it is better to perform a\u00a0<strong>simple test<\/strong>\u00a0before fully using the space. For example, on the\u00a0<strong>bathroom floor,<\/strong>\u00a0the surface can be kept\u00a0<strong>moist for several hours<\/strong>\u00a0and checked to see whether\u00a0<strong>leakage or dampness<\/strong>\u00a0is observed in\u00a0<strong>adjacent areas.<\/strong><\/p><p class=\"ds-markdown-paragraph\">In\u00a0<strong>professional projects,<\/strong>\u00a0a\u00a0<strong>water hold test<\/strong>\u00a0is performed before project handover. This prevents\u00a0<strong>future demolition costs.<\/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-5a61824 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5a61824\" 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-078b89c\" data-id=\"078b89c\" 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-f891dba elementor-widget elementor-widget-image\" data-id=\"f891dba\" 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=\"434\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210431_Chrome.jpg\" class=\"attachment-large size-large wp-image-9898\" alt=\"\u0631\u0637\u0648\u0628\u062a\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210431_Chrome.jpg 841w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210431_Chrome-300x163.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210431_Chrome-768x416.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210431_Chrome-600x325.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-4318535 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4318535\" 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-be4284e\" data-id=\"be4284e\" 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-806e97f elementor-widget elementor-widget-heading\" data-id=\"806e97f\" 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\">Practical solutions for preventing water penetration to the back of the tile<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba2a3e0 elementor-widget elementor-widget-text-editor\" data-id=\"ba2a3e0\" 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<h5 class=\"ds-markdown-paragraph\"><strong>\u00a0Surface preparation<\/strong><\/h5><p class=\"ds-markdown-paragraph\"><strong>The first step for any waterproofing project is preparing the surface. However, even the best materials will not perform as needed if we do not prepare the surface properly.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Checking cracks and weak points:<\/strong>\u00a0Before anything else,\u00a0<strong>carefully inspect the wall or floor.<\/strong>\u00a0We must\u00a0<strong>repair any crack or cavity with mortar.<\/strong>\u00a0For example,\u00a0<strong>deep cracks require a thick layer of mortar,<\/strong>\u00a0while\u00a0<strong>surface cracks need thin repair materials.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Cleaning the surface:<\/strong>\u00a0<strong>Dust, oil, grease, or dry mortar<\/strong>\u00a0will reduce\u00a0<strong>adhesion.<\/strong>\u00a0Therefore,\u00a0<strong>clean the surface with a brush or sponge and water,<\/strong>\u00a0and then\u00a0<strong>wait for it to dry completely.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Smoothing the surface:<\/strong>\u00a0We must fill\u00a0<strong>any roughness or protrusion with mortar or special paste<\/strong>\u00a0to make the surface\u00a0<strong>even.<\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong>\u00a0Selecting and applying waterproofing<\/strong><\/h5><p class=\"ds-markdown-paragraph\"><strong>Proper waterproofing is the main step in preventing water penetration.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Waterproofing materials:<\/strong>\u00a0We recommend using\u00a0<strong>liquid or paste-type waterproofing<\/strong>\u00a0specifically for\u00a0<strong>humid environments.<\/strong>\u00a0After drying, these materials create a\u00a0<strong>uniform, impermeable layer.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Application method:<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Apply the first layer<\/strong>\u00a0over the entire surface using a\u00a0<strong>brush or trowel.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\">After the first layer\u00a0<strong>dries,<\/strong>\u00a0<strong>apply the second layer perpendicular<\/strong>\u00a0to the direction of the first layer.<\/p><\/li><li><p class=\"ds-markdown-paragraph\">We must waterproof\u00a0<strong>corners, wall-to-floor junctions, and areas around floor drains<\/strong>\u00a0with\u00a0<strong>extra care.<\/strong><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Important note:<\/strong>\u00a0The waterproofing layers\u00a0<strong>need at least 24 hours to dry<\/strong>\u00a0to achieve the necessary\u00a0<strong>resistance.<\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong>\u00a0Using suitable tile adhesive<\/strong><\/h5><p class=\"ds-markdown-paragraph\"><strong>After waterproofing, it is time for <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\/repair-and-tying\/\">tile<\/a> <\/span><\/span>installation. Choosing the right adhesive plays a critical role.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Properties of suitable adhesive:<\/strong>\u00a0It must be\u00a0<strong>specifically for humid environments,<\/strong>\u00a0have\u00a0<strong>flexibility,<\/strong>\u00a0and provide\u00a0<strong>high adhesion.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Application method:<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\">We should use a\u00a0<strong>notched trowel<\/strong>\u00a0for\u00a0<strong>even spreading<\/strong>\u00a0of the adhesive.<\/p><\/li><li><p class=\"ds-markdown-paragraph\">For\u00a0<strong>large tiles,<\/strong>\u00a0we should also apply a\u00a0<strong>thin layer of adhesive<\/strong>\u00a0to the\u00a0<strong>back of the tile.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Press the tiles<\/strong>\u00a0and ensure that\u00a0<strong>no empty spaces<\/strong>\u00a0remain behind them.<\/p><\/li><\/ul><h5 class=\"ds-markdown-paragraph\"><strong>\u00a0Grouting and sealing joints<\/strong><\/h5><p class=\"ds-markdown-paragraph\"><strong>Grouting is one of the main barriers against water penetration. Therefore, in humid environments, you must use moisture-resistant materials.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Suitable materials:<\/strong>\u00a0Use\u00a0<strong>polymer or epoxy grout,<\/strong>\u00a0which have\u00a0<strong>high resistance to water.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Application method:<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Completely fill the joints<\/strong>\u00a0and ensure the\u00a0<strong>depth<\/strong>\u00a0is observed.<\/p><\/li><li><p class=\"ds-markdown-paragraph\">After applying the grout,\u00a0<strong>clean the surface with a sponge.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\">We must seal\u00a0<strong>areas around faucets, shower enclosures, or pipes<\/strong>\u00a0with a\u00a0<strong>flexible sealant.<\/strong><\/p><\/li><\/ul><h5 class=\"ds-markdown-paragraph\"><strong>\u00a0Allowing drying time<\/strong><\/h5><p class=\"ds-markdown-paragraph\"><strong>One of the common mistakes is using the bathroom or toilet too soon after tile and grout installation.<\/strong><\/p><p class=\"ds-markdown-paragraph\"><strong>Specifically, the waterproofing layer and tile adhesive need sufficient time to dry. Moreover, the grouting should dry for at least 24 to 48 hours.<\/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-0d8960b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0d8960b\" 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-cb6a542\" data-id=\"cb6a542\" 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-a3ea772 elementor-widget elementor-widget-image\" data-id=\"a3ea772\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"693\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210204_Chrome.jpg\" class=\"attachment-large size-large wp-image-9908\" alt=\"\u0645\u0631\u0637\u0648\u0628\u062a\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210204_Chrome.jpg 979w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210204_Chrome-300x260.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210204_Chrome-768x665.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210204_Chrome-600x520.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-548830b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"548830b\" 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-9ace514\" data-id=\"9ace514\" 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-e4ad3f3 elementor-widget elementor-widget-heading\" data-id=\"e4ad3f3\" 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\">Tools and materials required for waterproofing the back of the tile<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7d500e elementor-widget elementor-widget-text-editor\" data-id=\"f7d500e\" 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<h6 class=\"ds-markdown-paragraph\"><strong>1. Basic tools<\/strong><\/h6><p class=\"ds-markdown-paragraph\">For\u00a0<strong>proper waterproofing<\/strong>\u00a0and\u00a0<strong>tile installation,<\/strong>\u00a0having the\u00a0<strong>right tools<\/strong>\u00a0is essential:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Notched trowel:<\/strong>\u00a0For\u00a0<strong>evenly spreading<\/strong>\u00a0the\u00a0<strong>tile <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\/product\/porcelain-powder-tile-adhesive\/\">adhesive<\/a><\/span><\/span><\/strong><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\/product\/porcelain-powder-tile-adhesive\/\">\u00a0<\/a><\/span><\/span>on the surface and on the\u00a0<strong>back of the tile.<\/strong>\u00a0The\u00a0<strong>notch size<\/strong>\u00a0is selected according to the\u00a0<strong>tile size.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Brush or roller:<\/strong>\u00a0For applying the\u00a0<strong>liquid waterproofing layer<\/strong>\u00a0to the\u00a0<strong>wall or floor surface.<\/strong>\u00a0Using a\u00a0<strong>roller<\/strong>\u00a0for\u00a0<strong>large surfaces<\/strong>\u00a0increases work speed.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Sponge and water bucket:<\/strong>\u00a0For\u00a0<strong>cleaning excess adhesive and grout<\/strong>\u00a0and maintaining a\u00a0<strong>smooth tile surface.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Putty knife and small trowel:<\/strong>\u00a0For\u00a0<strong>precisely filling cracks and corners<\/strong>\u00a0with\u00a0<strong>repair mortar or sealant.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Level or spirit level:<\/strong>\u00a0To ensure the\u00a0<strong>surface is flat<\/strong>\u00a0and the\u00a0<strong>floor has proper slope,<\/strong>\u00a0especially in\u00a0<strong>toilets and bathrooms.<\/strong><\/p><\/li><\/ul><h6 class=\"ds-markdown-paragraph\"><strong>2. Required materials<\/strong><\/h6><p class=\"ds-markdown-paragraph\"><strong>Suitable waterproofing materials<\/strong>\u00a0guarantee the\u00a0<strong>quality of the work:<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Liquid or paste-type waterproofing:<\/strong>\u00a0These materials make the surface\u00a0<strong>impermeable<\/strong>\u00a0after drying. It is better to choose a product that has\u00a0<strong>high resistance to moisture and water vapor.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Tile adhesive suitable for humid environments:<\/strong>\u00a0It should be\u00a0<strong>flexible<\/strong>\u00a0and have\u00a0<strong>high adhesion.<\/strong>\u00a0If you are installing\u00a0<strong>large tiles,<\/strong>\u00a0the adhesive must be able to\u00a0<strong>withstand the tile&#8217;s weight<\/strong>\u00a0and prevent\u00a0<strong>empty spaces behind the tile.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Waterproof grout or sealant:<\/strong>\u00a0<strong>Polymer or epoxy<\/strong>\u00a0that is\u00a0<strong>resistant to moisture and stains.<\/strong>\u00a0Match the\u00a0<strong>grout color<\/strong>\u00a0with the\u00a0<strong>tile or wall color.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Repair mortar:<\/strong>\u00a0For filling\u00a0<strong>cracks or cavities<\/strong>\u00a0in the surface\u00a0<strong>before applying the waterproofing.<\/strong>\u00a0The mortar should be\u00a0<strong>cement-based<\/strong>\u00a0and have sufficient\u00a0<strong>strength after drying.<\/strong><\/p><\/li><\/ul><h6 class=\"ds-markdown-paragraph\"><strong>3. Product purchasing and selection tips<\/strong><\/h6><ul><li><p class=\"ds-markdown-paragraph\"><strong>Reputable brand:<\/strong>\u00a0Always use\u00a0<strong>high-quality products<\/strong>\u00a0from a\u00a0<strong>reputable brand<\/strong>\u00a0to ensure\u00a0<strong>durability and resistance.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Read technical specifications:<\/strong>\u00a0On the\u00a0<strong>product packaging,<\/strong>\u00a0check the\u00a0<strong>water resistance level,<\/strong>\u00a0<strong>drying time,<\/strong>\u00a0<strong>flexibility,<\/strong>\u00a0and\u00a0<strong>compatibility with humid environments.<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Sufficient quantity:<\/strong>\u00a0Before starting work,\u00a0<strong>calculate the product consumption<\/strong>\u00a0based on\u00a0<strong>square meters<\/strong>\u00a0so you do not\u00a0<strong>run out<\/strong>\u00a0during the job.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Production date:<\/strong>\u00a0An\u00a0<strong>expired product<\/strong>\u00a0will not have the necessary\u00a0<strong>quality and effectiveness.<\/strong><\/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-7c42835 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7c42835\" 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-1195270\" data-id=\"1195270\" 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-1a3ce7e elementor-widget elementor-widget-image\" data-id=\"1a3ce7e\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"433\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210309_Chrome.jpg\" class=\"attachment-large size-large wp-image-9912\" alt=\"\u0631\u0637\u0648\u0628\u062a\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210309_Chrome.jpg 861w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210309_Chrome-300x162.jpg 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210309_Chrome-768x416.jpg 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210309_Chrome-600x325.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-4ca4746 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4ca4746\" 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-2910095\" data-id=\"2910095\" 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-72ad94e elementor-widget elementor-widget-text-editor\" data-id=\"72ad94e\" 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<ul><li><p class=\"ds-markdown-paragraph\"><strong>How can I tell whether water penetration is from the back of the tile or from the plumbing?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Is darkened grout always a sign of water penetration?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>If only one tile has loosened, does that mean the entire substrate has a problem?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Can a musty smell without visible stains also be a sign of water penetration?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>How can I tell if there is empty space under the tile?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Does efflorescence on the wall behind the tile mean complete failure of the waterproofing?<\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>If only the wall shared with the neighbor is damp, where is the problem coming from?<\/strong><\/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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>How to prevent water and moisture from penetrating to the back of the tile? A review of principled methods Water and moisture penetration to the back of the tile\u00a0is one of the most common problems in\u00a0bathrooms, toilets, kitchens, and even balconies.\u00a0This problem usually manifests itself through signs such as\u00a0darkened grout lines, efflorescence, loosening of tiles, [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":9887,"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":[251,297],"tags":[],"class_list":["post-9966","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tile","category--en"],"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>Moisture has penetrated to the back of the tile - Bidak Chemical Industries<\/title>\n<meta name=\"description\" content=\"Moisture - Also, the lack of use of waterproofing materials in humid environments is one of the main reasons for this problem...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bidak-co.com\/en\/moisture\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Moisture has penetrated to the back of the tile - Bidak Chemical Industries\" \/>\n<meta property=\"og:description\" content=\"Moisture - Also, the lack of use of waterproofing materials in humid environments is one of the main reasons for this problem...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bidak-co.com\/en\/moisture\/\" \/>\n<meta property=\"og:site_name\" content=\"Bidak Chemical Industries\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-07T15:44:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-14T17:38:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/04\/Screenshot_20260215_210413_Chrome.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"985\" \/>\n\t<meta property=\"og:image:height\" content=\"852\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/bidak-co.com\/en\/moisture\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/bidak-co.com\/en\/moisture\/\"},\"author\":{\"name\":\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\",\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/person\/d0aab86887d28d4fbeb0a3949f39e571\"},\"headline\":\"How to prevent water and moisture from penetrating the back of tiles? 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