{"id":16657,"date":"2024-10-30T09:27:36","date_gmt":"2024-10-30T05:57:36","guid":{"rendered":"https:\/\/imenpol.com\/blog\/en\/?p=16657"},"modified":"2025-09-15T17:23:19","modified_gmt":"2025-09-15T13:53:19","slug":"proper-insulation-with-polyurethane-spray-foam","status":"publish","type":"post","link":"https:\/\/imenpol.com\/blog\/en\/educational\/proper-insulation-with-polyurethane-spray-foam\/","title":{"rendered":"Proper insulation with polyurethane spray foam"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16657\" class=\"elementor elementor-16657\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61edf14 e-flex e-con-boxed e-con e-parent\" data-id=\"61edf14\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7191e04 content-table elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"7191e04\" data-element_type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;container&quot;:&quot;.table-contents&quot;,&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h6 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of contents\t\t\t<\/h6>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__7191e04\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-62d24ad  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"62d24ad\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6889dc elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a6889dc\" 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><a title=\"Polyurethane\" href=\"\/en\/polyurethane\" target=\"_blank\" rel=\"noopener\">Polyurethane<\/a> spray foam insulation is a great way to insulate your home. It is versatile in its usage and is highly effective in shielding homes and businesses from thermal penetration. As you know, they are divided into open-cell and closed-cell insulation. Both types are effective for wall cavity insulation purposes.<\/p><p>When contractors install spray foam insulation, it is a liquid, but it expands quickly, solidifying and creating bubbles. In the following paper, some main points for properly insulating with spray foams are reviewed.<\/p><p>The properties of spray-applied <a title=\"polyurethane thermal insulation\" href=\"\/en\/product\/spray-insulation-heat\" target=\"_blank\" rel=\"noopener\">polyurethane thermal insulation<\/a> may vary depending on such factors as the thickness of the foam sprayed, the temperature and type of substrate, the ambient temperature and humidity, the number of spray passes, and the output of the equipment. The properties may also vary depending on different manufacturer\u2019s liquid components.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0e09f22 e-flex e-con-boxed e-con e-parent\" data-id=\"0e09f22\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7e0fc2a elementor-widget elementor-widget-image\" data-id=\"7e0fc2a\" 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=\"631\" height=\"387\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/spray.jpg\" class=\"attachment-full size-full wp-image-16661\" alt=\"Polyurethane spray insulation\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/spray.jpg 631w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/spray-300x184.jpg 300w\" sizes=\"(max-width: 631px) 100vw, 631px\" \/>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-411c01b  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"411c01b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f4dc460 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f4dc460\" 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<h2>Appropriate thickness for sprayed polyurethane foam<\/h2><p>R-Value is a measure of how well an object resists the flow of heat. Polyurethane spray foam insulation is rated in R-Value per inch, representing how effective each inch of thickness is. <br \/>. The actual thickness of foam is more dependent on the type of foam (closed-cell or open cell), formulation and temperature rise during the foaming process.<\/p><p>The thickness is perfectly controllable and can be modified by altering the application speed and\/or mixing chamber of the gun. It is worth mentioning that the lower the number of layers applied to achieve a certain thickness, will achieve a higher density foam, achieving better density distribution and consequently, better thermal properties. When applying a very large thickness, the applicator must apply in thinner layers rather than one thick layer, and must allow time for the spray foam applied to cool between adding each layer to prevent high exothermic reactions, which would influence the quality of the foam. In other words, If the foam is sprayed thicker than recommended for its type, excessive heat can result causing odors, cracks, shrinkage, or charring. To spray more than one layer, apply in layers allowing the foam to cure for at least 15 minutes between layers.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8a74c51 section pd-0 pb-0 pt-0 e-flex e-con-boxed e-con e-parent\" data-id=\"8a74c51\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3eeedcc e-con-full minimal-cta e-flex e-con e-child\" data-id=\"3eeedcc\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-8f94847 e-con-full e-flex e-con e-child\" data-id=\"8f94847\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9aacc85 section-subtitle elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"9aacc85\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" 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\">After sales service<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-771236c section-title elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"771236c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" 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\">For price inquiries and purchasing liquid polyurethane for polyurethane foam production, please contact Imen Polymer Chemie Company.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-938ca2f elementor-widget__width-initial elementor-absolute elementor-widget elementor-widget-image\" data-id=\"938ca2f\" data-element_type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;}\" 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\" src=\"https:\/\/imenpol.hinzaco.com\/wp-content\/uploads\/2024\/03\/hexagon-cta.svg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-efa6fc1 e-con-full button-minimal-cta e-flex e-con e-child\" data-id=\"efa6fc1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-32fabe9 button elementor-widget elementor-widget-button\" data-id=\"32fabe9\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/en\/contact\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send massage<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0142b5b button elementor-widget elementor-widget-button\" data-id=\"0142b5b\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"tel:%20+982157325\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Call Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-702ff1b e-flex e-con-boxed e-con e-parent\" data-id=\"702ff1b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9301801 elementor-widget elementor-widget-image\" data-id=\"9301801\" 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=\"902\" height=\"616\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/\u067e\u0627\u0634\u0634-\u0641\u0648\u0645.png\" class=\"attachment-full size-full wp-image-16662\" alt=\"Polyurethane spray foam thickness\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/\u067e\u0627\u0634\u0634-\u0641\u0648\u0645.png 902w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/\u067e\u0627\u0634\u0634-\u0641\u0648\u0645-300x205.png 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/10\/\u067e\u0627\u0634\u0634-\u0641\u0648\u0645-768x524.png 768w\" sizes=\"(max-width: 902px) 100vw, 902px\" \/>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-355b959  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"355b959\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e5a6574 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"e5a6574\" 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<h2>Optimized temperature before applying spray foam<\/h2><p>Knowing the ambient temperature, substrate temperature, and temperature of your components is key to using Polyurethane spray foam insulation properly. The ideal temperature for both the foam and the surface is between 65\u00b0 F and 90\u00b0 F. Surfaces that are colder will result in reduced yield because the cold surface extracts heat from the exothermic reaction resulting in a reduced rise. If the surface is 40\u00b0 or colder, the exotherm may also cause condensation, which would be like spraying foam onto a wet surface.<\/p><p>Surfaces that are too warm may result in the foam curing too fast. This would also result in a reduced yield because the foam would not have enough time to reach the full rise before a tack free state. In addition, extreme cases may result in loss of adhesion because the foam would cure so fast it could not develop a bond to the surface before it hardened.<\/p><h2>UV protection for sprayed foam<\/h2><p>Sprayed polyurethane foam applied in situ has an excellent behavior against atmospheric agents (water, extreme temperatures, wind, &#8230;). It is only attacked by long-term exposure to ultraviolet radiation, contained, for example, in direct sunlight. Although there is a layer of high density external skin,\u00a0 this attack causes the destruction of the polyurethane surface, resulting in a dusty appearance on the surface of the foam.<\/p><p>To avoid this action, exterior applications must be coated with specific materials such as polyurethane elastomers, polyurethanes, paints or any other specific coating for exterior use. These protections, like any other material, must be monitored for their conservation and maintenance. In the case of partially degraded foams, sanitizing must be carried out by means of a barbed brush or water under pressure and the subsequent application of a new layer of polyurethane foam and the suitable surface protection.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dbe0f62 section related-products e-con-full e-flex e-con e-parent\" data-id=\"dbe0f62\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7dafa0d section-subtitle elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"7dafa0d\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" 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\">Some of<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75a0f9a section-title elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"75a0f9a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" 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\">Polyurethane Products<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4528c49 e-con-full e-flex e-con e-child\" data-id=\"4528c49\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ab5c25 elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"1ab5c25\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/spray-insulation-heat\/\" target=\"_blank\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/imenpol.com\/blog\/wp-content\/uploads\/2024\/03\/\u0641\u0648\u0645-\u0639\u0627\u06cc\u0642-\u062d\u0631\u0627\u0631\u062a-1.jpg\" title=\"\" alt=\"\u0641\u0648\u0645 \u0639\u0627\u06cc\u0642 \u062d\u0631\u0627\u0631\u062a\" loading=\"lazy\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/spray-insulation-heat\/\" target=\"_blank\">Heat insulation spray<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ba6ee0 elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"5ba6ee0\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/spray-insulation-sound\/\" target=\"_blank\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/imenpol.com\/blog\/wp-content\/uploads\/2024\/03\/\u0641\u0648\u0645-\u0639\u0627\u06cc\u0642-\u0635\u0648\u062a-.jpg\" title=\"\" alt=\"\u0627\u0633\u067e\u0631\u06cc \u0641\u0648\u0645 \u067e\u0644\u06cc \u06cc\u0648\u0631\u062a\u0627\u0646 \u0639\u0627\u06cc\u0642 \u0635\u0648\u062a\u06cc\" loading=\"lazy\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/spray-insulation-sound\/\" target=\"_blank\">Sound insulation spray<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b53241e elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"b53241e\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/insulation-sandwich-panel\/\" target=\"_blank\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/imenpol.com\/blog\/wp-content\/uploads\/2024\/03\/\u0639\u0627\u06cc\u0642-\u067e\u0627\u0646\u0644.jpg\" title=\"\" alt=\"\u0639\u0627\u06cc\u0642 \u067e\u0627\u0646\u0644\" loading=\"lazy\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/insulation-sandwich-panel\/\" target=\"_blank\">Sandwich panel insulation<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a5f9eb9  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"a5f9eb9\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae37f37 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"ae37f37\" 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<h2>Prevention of cracking by expansion joints<\/h2><p>In Polyurethane spray foam insulation that is directly applied on expansion joints, cracks may occur due to the movement of the substrate by expansion or contraction. This effect can break the waterproofing property. It is easily avoidable if, at the time of the application, the proper precautions are taken by treating the joint properly.<\/p><p>Although polyurethane foam does admit some permanent deformation, the stresses generated by the effects of expansion-contraction on very wide joints, from 2 to 4 cm, cannot be absorbed by the foam. The way in which these stresses can be absorbed is to distribute them, minimizing their effects, by installing an elastic separating membrane, for example, made of synthetic rubber with a width of 30 cm, and applying polyurethane on top of it.<\/p><p>At last, it has to be reminded that one should hire professionals to install Polyurethane spray foam insulation, as well as <a title=\"Polyurethane spray foam sound insulation\" href=\"\/en\/product\/spray-insulation-sound\" target=\"_blank\" rel=\"noopener\">Polyurethane spray foam sound insulation<\/a>, because incorrect chemical makeup or improper application can lead to reduced efficiency, potential toxicity, and overall system failure.<\/p><h2>Imen Polymer Chemie, exporter of liquid polyurethane in Iran<\/h2><p><a title=\"Imen Polymer Chemie\" href=\"\/en\/\" target=\"_blank\" rel=\"noopener\">Imen Polymer Chemie<\/a> is a leading producer of liquid polyurethane in Iran, with a strong track record in the chemical manufacturing industry. The company offers high-quality products that meet international standards, using advanced equipment and a skilled team. Imen Polymer Chemikeh produces a wide range of liquid polyurethane solutions for various industries, including construction, automotive, flooring, and insulation. Not only is the company well-known in the domestic market, but it also exports its products worldwide, establishing a strong presence in international markets. The company&#8217;s products are known for their durability, excellent performance in various environmental conditions, and flexibility in producing custom solutions.<\/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\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Polyurethane spray foam is a great way to insulate your home. It is versatile in its usage and is highly effective in shielding homes and businesses from thermal penetration. <\/p>\n","protected":false},"author":4,"featured_media":16659,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[56],"class_list":["post-16657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-educational","tag-polyurethane-foam-spray"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Proper insulation with polyurethane spray foam - Imenpol blog<\/title>\n<meta name=\"description\" content=\"Polyurethane spray foam insulation seals leaks, boosts efficiency, reduces noise, and provides lasting thermal protection for buildings.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/imenpol.com\/blog\/en\/educational\/proper-insulation-with-polyurethane-spray-foam\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Proper insulation with polyurethane spray foam - 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