{"id":65473,"date":"2026-02-20T12:12:00","date_gmt":"2026-02-20T11:12:00","guid":{"rendered":"https:\/\/pruszynski.com.pl\/warto-wiedziec\/how-to-choose-a-coating-for-roofing-metal-sheets-based-on-climate-conditions-and-corrosion-environment-roofing-knowledge\/"},"modified":"2026-07-13T09:27:37","modified_gmt":"2026-07-13T07:27:37","slug":"how-to-choose-a-coating-for-roofing-metal-sheets-based-on-climate-conditions-and-corrosion-environment-roofing-knowledge","status":"publish","type":"warto-wiedziec","link":"https:\/\/pruszynski.com.pl\/en\/good-to-know\/how-to-choose-a-coating-for-roofing-metal-sheets-based-on-climate-conditions-and-corrosion-environment-roofing-knowledge\/","title":{"rendered":"How to Choose a Coating <i>for<\/i> Roofing Metal Sheets Based on Climate Conditions and Corrosion Environment? | <i>Roofing Knowledge<\/i>"},"content":{"rendered":"\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"is-style-lead wp-block-paragraph\">Choosing the right roofing metal sheets is crucial for the durability and aesthetic appeal that the roof will provide over many years of use. Changing weather conditions, humidity levels, UV radiation, and the degree of exposure to corrosion directly affect whether an investment in metal roof coverings will prove cost-effective. The right choice of roof coverings should take into account both the climate and the investor\u2019s individual needs.  <\/p>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02.jpg\" alt=\"REN Panel roof tile, Project in Wola Rz&#x119;dzi&#x144;ska\" class=\"wp-image-36687\" srcset=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02.jpg 2000w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-300x200.jpg 300w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-1024x682.jpg 1024w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-768x512.jpg 768w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-1536x1024.jpg 1536w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-1920x1280.jpg 1920w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-1200x800.jpg 1200w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/10\/blachodachowka-REN-pruszynski-02-280x187.jpg 280w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/figure>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#f1f1f1f2\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>In this post, you&#8217;ll learn about the most common problems:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-medium-font-size\">\n<li><a href=\"#czym-jest-powloka-blachy-dachowej\">What is a coating for roofing metal sheets, and why is it so important?<\/a><\/li>\n\n\n\n<li><a href=\"#klasa-srodowiska-korozyjnego\">Corrosive Environment Classes \u2013 How to Interpret the C1\u2013C5 Designations<\/a><\/li>\n\n\n\n<li><a href=\"#wplyw-klimatu-na-trwalosc-powlok-ochronnych\">The Effect of Climate on the Durability of Roofing Materials<\/a><\/li>\n\n\n\n<li><a href=\"#gwarancja-powloki-co-obejmuje\">Coating Warranty \u2013 What Does the Manufacturer Actually Cover?<\/a><\/li>\n\n\n\n<li><a href=\"#powloki-dachowe-a-warunki-uzytkowania\">Roof Coverings and Conditions of Use<\/a><\/li>\n<\/ul>\n<\/div><\/div>\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading is-style-heading-32\">Blog and How-To Series &#8211; &#8220;All About Roofing&#8221;<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-background wp-block-paragraph\" style=\"background-color:#014d9452\"><strong>The \u201cKnowledge Around the Roof\u201d series<\/strong> is a practical guide to roof maintenance and renovation. The articles go beyond simply discussing material selection, offering solutions to real-world problems faced by homeowners. The series covers <strong>legal formalities, budget planning<\/strong>, and modern technologies such as <strong>Photovoltaics and energy efficiency<\/strong>. <strong>Safety<\/strong> is a key focus\u2014from protection against storms and martens to roof access systems. The series is rounded out with advice on <strong>aesthetics and durability<\/strong>, ensuring thermal comfort for decades to come.    <\/p>\n\n\n\n<p class=\"has-background wp-block-paragraph\" style=\"background-color:#014d9452\">This article discusses <strong>how to select a coating for roofing metal sheets based on climatic conditions and the corrosive environment<\/strong>, explaining the significance of corrosion classes C1\u2013C5 and the impact of humidity, UV radiation, precipitation, and sea salt on the roof covering\u2019s durability. It compares available protective coatings\u2014from PS and TOPMAT\u00ae polyester coatings, through the hybrid PURMAX\u00ae, to PURLAK\u00ae and PURMAT\u00ae polyurethane coatings\u2014outlining their thickness, aesthetic and technical warranties, and recommended conditions of use. It points out that the selection of an appropriate coating should take into account the building\u2019s location, the type of roof, and the degree of exposure to weather conditions, emphasizing that investing in a higher-grade coating directly translates to long-term protection, consistent aesthetics, and lower roof operating costs.  <\/p>\n<\/div><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" id=\"czym-jest-powloka-blachy-dachowej\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">What is a coating for roofing metal sheets, and why is it so important?<\/h2>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pruszynski.com.pl\/en\/produkt\/protective-coatings\/\">The coating on roofing metal sheets<\/a> is a special layer that protects the steel sheet from external factors. Sheet metal coated with a protective layer is resistant to moisture, sunlight, temperature fluctuations, and mechanical damage. It is this protective coating that ensures high durability, aesthetic appeal, and corrosion resistance\u2014corrosion being one of the main causes of roof deterioration.  <\/p>\n\n<p class=\"wp-block-paragraph\">Modern solutions use sheet metal coated with a protective layer of varying thickness and chemical composition, which allows the material to be tailored to specific weather conditions. The right material ensures that the roof retains its technical performance and elegant appearance even after several decades of use. <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" id=\"klasa-srodowiska-korozyjnego\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Corrosive Environment Classes \u2013 How to Interpret the C1\u2013C5 Designations<\/h2>\n\n<p class=\"wp-block-paragraph\">Corrosivity classes determine the degree of aggressiveness of the environment in which roof coverings are used:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>C1<\/strong> \u2013 dry, low-aggressive environment<\/li>\n\n\n\n<li><strong>C2<\/strong> \u2013 rural areas with low pollution levels<\/li>\n\n\n\n<li><strong>C3<\/strong> \u2013 urban areas, single-family housing<\/li>\n\n\n\n<li><strong>C4<\/strong> \u2013 Industrial and Coastal Areas<\/li>\n\n\n\n<li><strong>C5<\/strong> \u2013 environments with very high aggressiveness<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">When selecting roofing metal sheets, it is important to consider the environmental class in order to effectively reduce corrosion and extend the life of the roof coverings.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" id=\"wplyw-klimatu-na-trwalosc-powlok-ochronnych\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">The Effect of Climate on the Durability of Roofing Materials<\/h2>\n\n<h3 class=\"wp-block-heading\">High humidity (above 80%)<\/h3>\n\n<p class=\"wp-block-paragraph\">Constant moisture promotes oxidation, which is why roofs in such conditions require roofing metal sheets with high resistance to damage. Low-quality coatings can reduce the service life by as much as 30\u201340%. <\/p>\n\n<h3 class=\"wp-block-heading\">Frequent rain and snowfall<\/h3>\n\n<p class=\"wp-block-paragraph\">Heavy precipitation causes snow, ice, and water to accumulate on roof surfaces. Rain and snow pose a particular threat to trapezoidal sheets, roof panels, and large-format roofing materials that are of poor quality or have a damaged coating. The quality of the coating and the thickness of the metal sheet are of key importance here.  <\/p>\n\n<h3 class=\"wp-block-heading\">UV radiation and solar radiation<\/h3>\n\n<p class=\"wp-block-paragraph\">Prolonged exposure to UV radiation causes the color to fade and reduces the elasticity of the coatings. Dark-colored roofs can heat up to as high as 70\u00b0C, which puts a strain on the coating and the roof structure. <\/p>\n\n<h3 class=\"wp-block-heading\">Large temperature fluctuations<\/h3>\n\n<p class=\"wp-block-paragraph\">Changing weather conditions cause the sheet metal to expand due to thermal expansion. This can lead to microcracks, which in turn can cause corrosion and reduce the material&#8217;s durability. <\/p>\n\n<h3 class=\"wp-block-heading\">Coastal Climate and Pollution<\/h3>\n\n<p class=\"wp-block-paragraph\">Sea salt and industrial pollutants accelerate corrosion. In such locations, metal roof tiles and trapezoidal sheets with a premium, highly resistant coating are ideal. <\/p>\n\n<h2 class=\"wp-block-heading\">How do you choose a coating for specific operating conditions?<\/h2>\n\n<p class=\"wp-block-paragraph\">When choosing <a href=\"https:\/\/pruszynski.com.pl\/en\/produkt\/roofs\/panel-modular-roof-tile\/\">a roof covering<\/a>, you should consider the following:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>the building&#8217;s location,<\/li>\n\n\n\n<li>type of roof,<\/li>\n\n\n\n<li>angle of inclination,<\/li>\n\n\n\n<li>roof framing,<\/li>\n\n\n\n<li>weather conditions.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Metal roofing is the most commonly chosen material for the roofs of single-family homes, as it is significantly lighter than cement roof tiles and traditional ceramic roof tiles. <a href=\"https:\/\/pruszynski.com.pl\/en\/produkt\/roofs\/custom-made-steel-tiles\/\">Metal roof tiles fit perfectly <\/a>into a modern architectural style, offering a minimalist design and a contemporary look.<\/p>\n\n<p class=\"wp-block-paragraph\">Trapezoidal sheets, roofing metal sheets, and standing seam roofing are often used in industrial construction projects, as they are easy to assemble and highly durable.<\/p>\n\n<h3 class=\"wp-block-heading\">Types of Roof Coverings: Aesthetics and Functionality<\/h3>\n\n<p class=\"wp-block-paragraph\">Among the most popular types are:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Tailored roof tiles and modular roof tiles,<\/li>\n\n\n\n<li><a href=\"https:\/\/pruszynski.com.pl\/en\/produkt\/trapezoidal-sheets\/roof-trapezoids\/tp26super\/\">Trapezoidal sheets<\/a>,<\/li>\n\n\n\n<li><a href=\"https:\/\/pruszynski.com.pl\/en\/produkt\/roofs\/panel-with-standing-seam\/\">roof panels<\/a>,<\/li>\n\n\n\n<li>stand-up hem,<\/li>\n\n\n\n<li>ceramic roof tiles.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Modern roof coverings are available in a standard color palette (over 20\u201330 shades), in glossy and matte finishes. They retain their color intensity even under harsh weather conditions. Thanks to matte coatings (e.g., TOPMAT, PURMAT), roofing metal sheets can have a deep, uniform color, making it possible to match the roof to modern, minimalist architectural designs.  <\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-1024x574.webp\" alt=\"Metal Roof Tiles in the Rain\" class=\"wp-image-60853\" srcset=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-1024x574.webp 1024w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-300x168.webp 300w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-768x430.webp 768w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-1536x861.webp 1536w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-1920x1076.webp 1920w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-1200x673.webp 1200w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski-280x157.webp 280w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2026\/02\/deszcz-warunki-atmosferyczne-pogoda-odpornosc-blachy-pruszynski.webp 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<div style=\"height:50px\" aria-hidden=\"true\" id=\"gwarancja-powloki-co-obejmuje\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Coating Warranty \u2013 What Does the Manufacturer Actually Cover?<\/h2>\n\n<p class=\"wp-block-paragraph\">The warranty typically covers resistance to corrosion perforation, color retention, and coating durability. The warranty is valid only if the product is assembled correctly, taking into account the roof\u2019s construction and exposure to weather conditions. <\/p>\n\n<p class=\"wp-block-paragraph\">A new roof made of roofing metal sheets\u2014which are aesthetically pleasing, durable, and relatively inexpensive per square meter\u2014is the ideal solution for both residential and industrial construction.<\/p>\n\n<p class=\"wp-block-paragraph\">Thanks to their wide range of products, manufacturers allow customers to choose roof coverings tailored to climatic conditions, roof construction, and optimal application.<br\/>The manufacturer\u2019s Warranty period may vary depending on the selected model of metal roof tiles, trapezoidal sheets, and the type of coating used. The Warranty is valid only if the product is assembled correctly (in accordance with the assembly instructions) and used properly. <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" id=\"powloki-dachowe-a-warunki-uzytkowania\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Roof Coverings and Conditions of Use<\/h2>\n\n<p class=\"wp-block-paragraph\">If you\u2019re looking for the right coating for your roof, the table below will help you compare the options available from the Blachy Pruszy\u0144ski Company. It includes information on the Warranty period, intended use, and recommended conditions for each coating. It\u2019s worth noting that PURLAK\u00ae and PURMAT\u00ae are two separate polyurethane coatings with identical thickness and Warranty terms, differing only in their finish\u2014PURLAK\u00ae has a glossy finish, while PURMAT\u00ae has a matte finish with higher UV resistance. This makes it easier for you to choose a roofing coating that will ensure high durability, protection against damage, and an elegant appearance for your roof.   <\/p>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Pow\u0142oka<\/th><th>Grubo\u015b\u0107 pow\u0142oki<\/th><th>Aesthetic Warranty<\/th><th>Technical Warranty (Corrosion Protection)<\/th><th>Purpose<\/th><th>Recommended Conditions of Use<\/th><\/tr><tr><td><strong>Glossy polyester (PS)<\/strong><\/td><td>25 \u00b5m<\/td><td>up to 10 years<\/td><td>up to 30 years<\/td><td>Single-family housing, standard structures<\/td><td>C2\u2013C3 environment, moderate weather conditions<\/td><\/tr><tr><td><strong>Coarse-grained matte polyester (PMG35)<\/strong><\/td><td>35 \u00b5m<\/td><td>up to 15 years<\/td><td>up to 35 years old<\/td><td>Single-family housing, projects with a matte finish<\/td><td>C2\u2013C3, moderate weather conditions<\/td><\/tr><tr><td><strong>TOPMAT\u00ae<\/strong><\/td><td>35 \u00b5m<\/td><td>up to 20 years<\/td><td>up to 35 years old<\/td><td>Single-family homes, aesthetically pleasing projects<\/td><td>C2\u2013C3, variable weather conditions, moderate UV<\/td><\/tr><tr><td><strong>PURMAX\u00ae (hybrid: polyurethane + polyester)<\/strong><\/td><td>40 \u00b5m<\/td><td>up to 20 years<\/td><td>up to 40 years old<\/td><td>Roofs with higher aesthetic and mechanical requirements<\/td><td>C3\u2013C4, urban and industrial areas, higher levels of sunlight<\/td><\/tr><tr><td><strong>PURLAK\u00ae (polyurethane, gloss)<\/strong><\/td><td>50 \u00b5m<\/td><td>up to 30 years<\/td><td>up to 50 years<\/td><td>Buildings in harsh environments, glossy finish<\/td><td>C4\u2013C5, high humidity, industrial areas, coastal regions<\/td><\/tr><tr><td><strong>PURMAT\u00ae (polyurethane, matte)<\/strong><\/td><td>50 \u00b5m<\/td><td>up to 30 years<\/td><td>up to 50 years<\/td><td>Modern architecture, premium roofs, matte finish<\/td><td>C4\u2013C5, harsh environment, strong UV exposure, highest resistance to fading<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">When selecting the appropriate coating for a given type of roofing, one should consider not only the length of the Warranty but also the operating conditions and the degree to which the roof is exposed to external factors. The harsher the operating environment, the more advanced the protective coating should be, ensuring long-lasting protection and maintaining the roof\u2019s aesthetic appeal. <\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions &#8211; FAQ<\/h2>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<details class=\"wp-block-details has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>What type of roofing metal sheets are best for a single-family home?<\/strong> \ud83d\udd3d<\/summary>\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"is-style-default wp-block-paragraph\">For a single-family home, PURLAK\u00ae or PURMAT\u00ae polyurethane coatings are the best choice, as they offer the highest durability, corrosion and UV resistance, and a technical warranty of up to 50 years. If your budget is limited, PURMAX\u00ae or TOPMAT\u00ae are good options\u2014they provide reliable protection at a lower price. <\/p>\n<\/details>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<details class=\"wp-block-details has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong><strong>How is PURLAK\u00ae different from PURMAT\u00ae?<\/strong><\/strong> \ud83d\udd3d<\/summary>\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"is-style-default wp-block-paragraph\">Both coatings are polyurethane, are 50 \u00b5m thick, and have identical warranty periods (up to 30 years for aesthetic warranty, up to 50 years for technical warranty). The only difference is in the finish\u2014PURLAK\u00ae has a glossy finish, while PURMAT\u00ae has a matte finish with higher UV resistance. <\/p>\n<\/details>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<details class=\"wp-block-details has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong><strong>Which coating should you choose near the sea or in an industrial area?<\/strong><\/strong> \ud83d\udd3d<\/summary>\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"is-style-default wp-block-paragraph\">In environments with corrosion classes C4\u2013C5, PURLAK\u00ae or PURMAT\u00ae polyurethane coatings are recommended. They provide the highest resistance to moisture, seawater, and aggressive air pollutants. <\/p>\n<\/details>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<details class=\"wp-block-details has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong><strong>What do corrosion classes C1\u2013C5 mean?<\/strong> \ud83d\udd3d<\/strong><\/summary>\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"is-style-default wp-block-paragraph\">Corrosivity classes define the aggressiveness of the environment in which the roof coverings are used\u2014ranging from C1 (dry, low-aggressiveness environment) to C5 (industrial and coastal environments with very high aggressiveness). The higher the class, the more advanced the protective coating required. <\/p>\n<\/details>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<details class=\"wp-block-details has-medium-font-size is-layout-flow wp-block-details-is-layout-flow\"><summary><strong><strong>Does the thickness of the roofing metal sheets affect the roof&#8217;s durability?\ud83d\udd3d<\/strong><\/strong><br><\/summary>\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"is-style-default wp-block-paragraph\">Yes\u2014the thicker the coating, the higher the resistance to corrosion, UV radiation, and mechanical damage. Polyester coatings are 25\u201335 \u00b5m thick, the hybrid PURMAX\u00ae coating is 40 \u00b5m thick, and the polyurethane PURLAK\u00ae and PURMAT\u00ae coatings are as thick as 50 \u00b5m, which translates to a technical warranty of up to 50 years. <\/p>\n<\/details>\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-1024x768.jpg\" alt=\"REGLE Roof Panels, Project in Bia&#x142;ystok\" class=\"wp-image-36229\" srcset=\"https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-1024x768.jpg 1024w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-300x225.jpg 300w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-768x576.jpg 768w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-1536x1152.jpg 1536w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-1920x1440.jpg 1920w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-1200x900.jpg 1200w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02-280x210.jpg 280w, https:\/\/pruszynski.com.pl\/wp-content\/uploads\/2023\/09\/Panel-dachowy-REGLE-pruszynski-02.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"featured_media":60857,"parent":0,"menu_order":69,"template":"","warto-wiedziec-groups":[793,792],"warto-wiedziec-categories":[1975],"warto-wiedziec-tags":[2044,2076],"class_list":["post-65473","warto-wiedziec","type-warto-wiedziec","status-publish","has-post-thumbnail","hentry","warto-wiedziec-groups-contractors-guide-en","warto-wiedziec-groups-investors-guide-en","warto-wiedziec-categories-roof-covering-en","warto-wiedziec-tags-warranty-en","warto-wiedziec-tags-protective-coatings-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Choose a Coating for Roofing Metal Sheets Based on Climate Conditions and Corrosion Environment? | Roofing Knowledge - Pruszy\u0144ski<\/title>\n<meta name=\"description\" content=\"Learn how to choose the right coating for roofing metal sheets for your climate and corrosion class. 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