{"id":11719,"date":"2026-09-18T16:13:10","date_gmt":"2026-09-18T13:13:10","guid":{"rendered":"https:\/\/aplast.ro\/?p=11719"},"modified":"2026-09-18T16:20:34","modified_gmt":"2026-09-18T13:20:34","slug":"pvc-windows-guide-number-of-chambers-construction-depth-and-the-difference-between-class-a-b-and-c-pvc-profiles","status":"publish","type":"post","link":"https:\/\/aplast.ro\/en\/pvc-windows-guide-number-of-chambers-construction-depth-and-the-difference-between-class-a-b-and-c-pvc-profiles\/","title":{"rendered":"PVC Windows Guide: Number of Chambers, Construction Depth and the Difference Between Class A, B and C PVC Profiles"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"11719\" class=\"elementor elementor-11719\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2492b38f e-flex e-con-boxed e-con e-parent\" data-id=\"2492b38f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-40b289ff e-con-full e-flex e-con e-child\" data-id=\"40b289ff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-178884f4 elementor-widget elementor-widget-image\" data-id=\"178884f4\" data-element_type=\"widget\" data-e-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=\"1024\" height=\"572\" src=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-1024x572.webp\" class=\"attachment-large size-large wp-image-11153\" alt=\"mostra profil pvc color ferestre termopan aplast\" srcset=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-1024x572.webp 1024w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-300x167.webp 300w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-768x429.webp 768w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-1200x670.webp 1200w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast.webp 1376w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\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 class=\"elementor-element elementor-element-3aedb887 elementor-widget elementor-widget-heading\" data-id=\"3aedb887\" data-element_type=\"widget\" data-e-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-xl\">PVC Windows Guide: Number of Chambers, Construction Depth and the Difference Between Class A, B and C PVC Profiles<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57f423ab elementor-widget elementor-widget-text-editor\" data-id=\"57f423ab\" data-element_type=\"widget\" data-e-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>If you have ever requested a quote for windows, you have certainly come across terms such as \u201c6-chamber profile\u201d, \u201c70 mm profile\u201d, \u201cClass A\u201d or \u201c3 seals\u201d. These are real and relevant specifications, but when presented separately, they can give you an incomplete picture of a window\u2019s overall performance.<\/p><p>A PVC window is not high-performing simply because it has more chambers or a deeper profile. The final performance is the result of several components working together: the PVC profile, its geometry, the number and positioning of the chambers, the construction depth, the sealing gaskets and, perhaps surprisingly, its colour.<\/p><p>In this article, we will explain why each specification of a PVC profile matters, so that when comparing two windows, you can look at the system as a whole rather than focusing on a single figure in the quotation.<\/p>\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-5d3ac75c elementor-widget elementor-widget-heading\" data-id=\"5d3ac75c\" data-element_type=\"widget\" data-e-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\">What does \u201cnumber of chambers\u201d mean in a PVC profile?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a14beb4 elementor-widget elementor-widget-text-editor\" data-id=\"1a14beb4\" data-element_type=\"widget\" data-e-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>The internal chambers of a profile act as small barriers of still air, reducing heat and sound transfer. The more chambers there are, and the greater the construction depth of the profile, the longer and more fragmented the path that heat or sound has to travel from the outside to the inside.<\/p><p>Although a PVC profile with multiple insulating chambers is desirable, to achieve maximum efficiency the chambers need to be proportionally dimensioned to the installation depth. Therefore, a 76 mm profile with 6 chambers can achieve better thermal and acoustic performance than a 60 mm profile with the same number of chambers, because the former has wider and more efficient compartments.<\/p><p>General guideline:<\/p><ul><li>approx. 60 mm \/ 4 chambers \u2013 solutions intended for construction and renovation projects with standard requirements and an optimised budget;<\/li><li>approx. 70 mm \/ 5\u20136 chambers \u2013 solutions suitable for a wide range of residential applications;<\/li><li>approx. 76 mm \/ 5\u20136 chambers \u2013 systems offering higher thermal performance and greater flexibility for advanced glazing units;<\/li><li>approx. 82 mm \/ 7 chambers \u2013 systems designed for very high levels of energy efficiency, depending on the selected configuration.<\/li><\/ul>\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-6c3ff0c0 elementor-widget elementor-widget-heading\" data-id=\"6c3ff0c0\" data-element_type=\"widget\" data-e-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\">PVC profile class (EN 12608)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b3ff491 elementor-widget elementor-widget-text-editor\" data-id=\"5b3ff491\" data-element_type=\"widget\" data-e-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>The European standard EN 12608 classifies PVC-U profiles according to the wall thickness of their main profile sections. The current classification distinguishes Classes A, B and C based on the thickness of the visible and non-visible walls.<\/p><p>For main profiles:<\/p><ul><li>Class A: \u22652.8 mm on visible surfaces and \u22652.5 mm on non-visible surfaces;<\/li><li>Class B: \u22652.5 mm on visible surfaces and \u22652.0 mm on non-visible surfaces;<\/li><li>Class C: no minimum wall-thickness requirement for these classification criteria.<\/li><\/ul><p>The difference in wall thickness may seem small, but profile design and wall thickness can contribute to structural rigidity and the way components are secured.<\/p><p>Structural rigidity<\/p><p>A Class A profile has thicker main walls, which can provide increased resistance to repeated opening and closing, the weight of the glazing unit and wind loads, depending on the complete window configuration.<\/p><p>Better component fixing<\/p><p>The thicker walls of a Class A profile can provide better anchoring for fixing screws and contribute to the long-term stability of the window and its hardware.<\/p>\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-ec4aed1 elementor-widget elementor-widget-heading\" data-id=\"ec4aed1\" data-element_type=\"widget\" data-e-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\">Sealing gaskets<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-165a49a0 elementor-widget elementor-widget-text-editor\" data-id=\"165a49a0\" data-element_type=\"widget\" data-e-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>Sealing gaskets are synthetic rubber elements, commonly made from materials such as EPDM, that ensure a tight contact between the moving sash and the frame.<\/p><p>A high-performance profile can use three perimeter sealing gaskets: one on the inner side, one in the central sealing plane and one on the outer side. This three-level configuration creates successive barriers against air, water and noise.<\/p><ul><li>3 seals: enhanced air, water and acoustic sealing;<\/li><li>2 seals: standard sealing performance.<\/li><\/ul><p>Sealing gaskets require periodic maintenance. Annual treatment with dedicated silicone-based products helps maintain their elasticity and extend their service life. A neglected gasket can become the weak link in an otherwise high-performing window system.<\/p>\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-3d199ac7 elementor-widget elementor-widget-heading\" data-id=\"3d199ac7\" data-element_type=\"widget\" data-e-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\">PVC profile colour and thermal effects<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ad5e81 elementor-widget elementor-widget-text-editor\" data-id=\"8ad5e81\" data-element_type=\"widget\" data-e-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>The range of colours and finishes available for PVC profiles has expanded considerably in recent years. Beyond classic white, you can choose from anthracite grey, matt black, brown or wood-effect finishes.<\/p><p>White PVC reflects most solar radiation and can heat up to approximately 40\u201350\u00b0C on hot days. A dark-coloured profile, such as anthracite grey or black, can absorb significantly more solar radiation on a south-facing fa\u00e7ade and reach temperatures of 70\u201380\u00b0C. At these temperatures, thermal expansion of the profile becomes significant.<\/p><p>The consequences of an installation that does not account for this phenomenon appear gradually: the profile may deform slightly, the sash may no longer close perfectly and airtightness can progressively decrease. These problems can be avoided when installation is carried out correctly from the beginning, with the necessary expansion tolerances and strategically positioned fixing points.<\/p><p>There is also a second complementary measure, independent of installation: external solar shading systems. External roller shutters, blinds or awnings reduce the temperature reached by the profile on days with intense solar radiation \u2014 increasingly common in Europe in recent years \u2014 protecting both the profile and the interior of the home from overheating.<\/p>\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-e9a6b54 elementor-widget elementor-widget-heading\" data-id=\"e9a6b54\" data-element_type=\"widget\" data-e-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\">A strategic advantage of deeper PVC profiles: future flexibility<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6192c4c8 elementor-widget elementor-widget-text-editor\" data-id=\"6192c4c8\" data-element_type=\"widget\" data-e-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 less frequently discussed argument for choosing a profile with greater construction depth, such as 76 mm or 82 mm, is the flexibility it can provide in the future.<\/p><p>Deeper profiles can accommodate a wider range of glazing units, from conventional double glazing to specialised triple-glazed units exceeding 50 mm in total thickness. This means that if you choose a standard glazing configuration today for budget reasons, the profile may be able to accommodate a higher-performance glazing unit later if your needs or financial possibilities change \u2014 without replacing the entire window, but only the glazing unit.<\/p>\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-1a25f47 elementor-widget elementor-widget-heading\" data-id=\"1a25f47\" data-element_type=\"widget\" data-e-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\">How do you choose the right PVC profile?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39234cf6 elementor-widget elementor-widget-text-editor\" data-id=\"39234cf6\" data-element_type=\"widget\" data-e-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>There is no single profile that is suitable for every project.<\/p><p>Your choice should take into account the type of building, window dimensions, fa\u00e7ade orientation, desired comfort level, glazing unit and budget.<\/p><p><strong>For renovations and projects with an optimised budget<\/strong><\/p><p>A system of approximately 60 mm \/ 4 chambers can be a suitable solution when energy-efficiency requirements are moderate and the window configuration is standard.<\/p><p><strong>For modern residential homes<\/strong><\/p><p>Systems of approximately 70 mm \/ 5\u20136 chambers offer a good balance between energy efficiency, flexibility and cost and can accommodate high-performance glazing configurations.<\/p><p><strong>For energy-efficient homes<\/strong><\/p><p>76 mm \/ 5\u20136 chamber profiles, combined with three seals, triple glazing and appropriate reinforcement, can be used to achieve high thermal performance.<\/p><p><strong>For projects with very high performance requirements<\/strong><\/p><p>For homes with specific energy-efficiency standards, including passive house projects, the entire window system and its performance in the actual configuration should be assessed.<\/p>\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-1537b5ee elementor-widget elementor-widget-heading\" data-id=\"1537b5ee\" data-element_type=\"widget\" data-e-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\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-692b6f4 elementor-widget elementor-widget-text-editor\" data-id=\"692b6f4\" data-element_type=\"widget\" data-e-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>Choosing a PVC window profile should not be based solely on the number of chambers or the construction depth. These are important criteria, but the actual performance of a window results from the way all system components work together.<\/p><p>When comparing two quotations, look beyond phrases such as \u201c6 chambers\u201d or \u201c70 mm profile\u201d. Check the construction depth, profile class, number and configuration of the seals. Do not overlook the colour of the profile either: dark colours installed on sun-exposed fa\u00e7ades absorb more heat and can reach temperatures of 70\u201380\u00b0C, while thermal expansion can lead to deformation over time if the window is not installed correctly.<\/p><p>At the same time, a deeper profile can provide greater flexibility for using high-performance glazing units, while Class A profiles offer important advantages in terms of structural robustness and stability.<\/p><p>Need help choosing your windows?<\/p><p>At Aplast, every window is configured according to the profile, glazing unit, hardware and requirements of the project.<\/p><p>Tell us what you need, and we will help you identify the right configuration for your home.<\/p>\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-4504dfb9 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"4504dfb9\" data-element_type=\"widget\" data-e-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-md\" href=\"https:\/\/aplast.ro\/en\/contact\/\" id=\"btn-cerere-oferta-intro\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request a Free Quote<\/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<div class=\"elementor-element elementor-element-29a7b3f7 e-con-full e-flex e-con e-child\" data-id=\"29a7b3f7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bdd88c5 elementor-grid-1 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-posts--thumbnail-top elementor-widget elementor-widget-posts\" data-id=\"bdd88c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_columns&quot;:&quot;1&quot;,&quot;classic_columns_tablet&quot;:&quot;2&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:35,&quot;sizes&quot;:[]},&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-11719 post type-post status-publish format-standard has-post-thumbnail hentry category-pvc-windows-guide\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/aplast.ro\/en\/pvc-windows-guide-number-of-chambers-construction-depth-and-the-difference-between-class-a-b-and-c-pvc-profiles\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast.webp\" class=\"attachment-full size-full wp-image-11154\" alt=\"mostra profil pvc color ferestre termopan aplast\" srcset=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast.webp 1376w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-300x167.webp 300w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-1024x572.webp 1024w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-768x429.webp 768w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/08\/mostra-profil-pvc-color-ferestre-termopan-aplast-1200x670.webp 1200w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/aplast.ro\/en\/pvc-windows-guide-number-of-chambers-construction-depth-and-the-difference-between-class-a-b-and-c-pvc-profiles\/\" >\n\t\t\t\tPVC Windows Guide: Number of Chambers, Construction Depth and the Difference Between Class A, B and C PVC Profiles\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\tSeptember 18, 2026\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/aplast.ro\/en\/pvc-windows-guide-number-of-chambers-construction-depth-and-the-difference-between-class-a-b-and-c-pvc-profiles\/\" aria-label=\"Read more about PVC Windows Guide: Number of Chambers, Construction Depth and the Difference Between Class A, B and C PVC Profiles\" tabindex=\"-1\" >\n\t\t\tREAD MORE &gt;\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-9211 post type-post status-publish format-standard has-post-thumbnail hentry category-pvc-windows-guide tag-insulating-glass tag-pvc-windows tag-double-glazing tag-energy-efficiency\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/aplast.ro\/en\/guide-how-to-choose-the-right-pvc-windows-for-your-home-based-on-facade-and-location\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img decoding=\"async\" width=\"900\" height=\"592\" src=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/05\/locuinta-eficienta-energetic-cu-ferestre-termopan-aplast.webp\" class=\"attachment-full size-full wp-image-10080\" alt=\"locuinta eficienta energetic cu ferestre termopan aplast\" srcset=\"https:\/\/aplast.ro\/wp-content\/uploads\/2026\/05\/locuinta-eficienta-energetic-cu-ferestre-termopan-aplast.webp 900w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/05\/locuinta-eficienta-energetic-cu-ferestre-termopan-aplast-300x197.webp 300w, https:\/\/aplast.ro\/wp-content\/uploads\/2026\/05\/locuinta-eficienta-energetic-cu-ferestre-termopan-aplast-768x505.webp 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/aplast.ro\/en\/guide-how-to-choose-the-right-pvc-windows-for-your-home-based-on-facade-and-location\/\" >\n\t\t\t\tGuide: How to Choose the Right PVC Windows for Your Home Based on Facade and 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