{"id":12692,"date":"2025-02-25T15:35:48","date_gmt":"2025-02-25T14:35:48","guid":{"rendered":"https:\/\/sapor.pl\/?p=12692"},"modified":"2025-03-09T14:36:27","modified_gmt":"2025-03-09T13:36:27","slug":"review-of-aluminum-window-mb-86-st","status":"publish","type":"post","link":"https:\/\/sapor.pl\/en\/all\/review-of-aluminum-window-mb-86-st\/","title":{"rendered":"Review of Aluminum Window MB-86 ST"},"content":{"rendered":"<p class=\"whitespace-pre-wrap break-words\"><strong>Are you looking for an aluminum window system that offers good thermal insulation without excessive costs? Are you wondering if MB-86 ST actually provides an optimal balance between technical parameters and price, and whether it will work well in your project?<\/strong><\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12415\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-2.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Table of Contents<\/h2>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#introduction\">Introduction<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#technical-specifications-and-first-impressions\">Technical Specifications and First Impressions<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#practical-advantages\">Practical Advantages<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#disadvantages-and-limitations\">Disadvantages and Limitations<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#comparison-with-competition\">Comparison with Competition<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#applications-and-user-opinions\">Applications and User Opinions<\/a><\/li>\n<li class=\"whitespace-normal break-words\"><a class=\"underline\" href=\"#summary-and-recommendation\">Summary and Recommendation<\/a><\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap break-words\"><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12421\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-3.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"introduction\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Introduction<\/h2>\n<p class=\"whitespace-pre-wrap break-words\">In today&#8217;s architecture, aluminum window systems are becoming an increasingly popular choice, combining elegant appearance with durability and good technical parameters. One system that deserves attention is MB-86 ST \u2013 the basic variant from the family of advanced window and door systems MB-86 by Aluprof, a leading manufacturer of aluminum systems in Europe.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">The MB-86 system is available in three variants: ST (Standard), SI (Super Insulation), and AERO (with aerogel). MB-86 ST is the economical variant, designed for customers looking for a balance between good technical parameters and reasonable price.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">As specialists with many years of experience in the aluminum window systems industry, we have had the opportunity to work with various MB-86 variants, including the ST version. In this review, we will share our knowledge and experiences to help you assess whether MB-86 ST is the right choice for your project.<\/p>\n<p class=\"whitespace-pre-wrap break-words\"><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12427\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-4.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"technical-specifications-and-first-impressions\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Technical Specifications and First Impressions<\/h2>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST is a window and door system with a solid construction that provides a good foundation for various types of windows and doors. The system is characterized by the following parameters:<\/p>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\">Frame depth is 77 mm<\/li>\n<li class=\"whitespace-normal break-words\">Sash depth is 86 mm for windows and 77 mm for doors<\/li>\n<li class=\"whitespace-normal break-words\">Uses three-chamber profiles with thermal breaks of 32-42 mm width<\/li>\n<li class=\"whitespace-normal break-words\">Allows installation of glazing packages from 13.5 mm to 67.5 mm in windows and 4.5-58.5 mm in doors and fixed constructions<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12433\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-5.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<p class=\"whitespace-pre-wrap break-words\">The system allows for creating truly large constructions \u2013 windows can have a height of up to 3000 mm and width up to 1700 mm, with a maximum sash weight of up to 200 kg. These are significant capabilities that will satisfy most designers and investors.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">In terms of thermal insulation, MB-86 ST offers a heat transfer coefficient for the window (Uw) from 1.0 W\/(m\u00b2K) when using glass with Ug=0.5 W\/(m\u00b2K). The coefficient for the profile itself (Uf) is from 1.39 W\/(m\u00b2K). It&#8217;s worth noting that in the best configurations, the system meets the requirements of Technical Conditions 2021 (Uw \u2264 0.9 W\/(m\u00b2K)).<\/p>\n<p class=\"whitespace-pre-wrap break-words\">Acoustic insulation reaches Rw up to 42 dB (e.g., with a 4\/16\/4 package with argon), which is a good result, especially in the context of urban development.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">The first impression after familiarizing ourselves with the MB-86 ST system is positive. The profiles are slim and aesthetic, while at the same time giving the impression of being solid. The system uses standard Euro grooves, making it compatible with popular hardware from Roto, Maco, or GU.<\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12439\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-6.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"practical-advantages\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Practical Advantages<\/h2>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Good Thermal Insulation<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST, although it is the basic variant within the MB-86 system, offers really good insulation parameters. The Uw coefficient from 1.0 W\/(m\u00b2K) is sufficient for most residential and commercial buildings compliant with current standards. This is a significant advantage, especially in the context of rising energy prices and increased ecological awareness of investors.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Exceptional Durability<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">One of the biggest advantages of aluminum window systems, including MB-86 ST, is their longevity. Aluminum with thermal breaks and appropriate impregnation provides resistance to corrosion, moisture, and UV radiation, which translates into a lifespan of even 50-60 years. This is significantly longer than for PVC windows or even wooden windows.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">In practice, this means that the investment in the MB-86 ST system pays off in the long term, despite the higher initial price compared to PVC systems.<\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12469\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Design Flexibility<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST offers a wide selection of sizes and glazing possibilities (up to 67.5 mm), which allows for the installation of double and triple glazing, including specialized acoustic or anti-burglary glass. The system is available in a wide range of RAL colors (over 200 shades), as well as with the possibility of anodizing or using wood-like coatings.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">This flexibility makes MB-86 ST perfect for both modern and more classical architectural projects.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Favorable Price-to-Quality Ratio<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST as an economical variant within the MB-86 system offers a very good price-to-quality ratio. It is cheaper than the SI and AERO variants, but still provides high energy efficiency and durability.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Possibility of Creating Large Glazing<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">The high rigidity of aluminum profiles allows for the creation of much larger constructions than in the case of PVC systems. Windows with dimensions of 3 x 1.7 m are not a problem for MB-86 ST, which gives architects greater design freedom and allows for better lighting of rooms.<\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12445\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-7.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"disadvantages-and-limitations\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Disadvantages and Limitations<\/h2>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Lower Thermal Insulation Than Premium Variants<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">The basic disadvantage of MB-86 ST compared to more expensive variants of this system is lower thermal insulation. The Uf coefficient of 1.39 W\/(m\u00b2K) is significantly higher than in the SI variants (0.92 W\/(m\u00b2K)) or AERO (0.57 W\/(m\u00b2K)).<\/p>\n<p class=\"whitespace-pre-wrap break-words\">This difference may be noticeable especially in buildings with high energy requirements, such as passive or energy-efficient houses. In standard residential and commercial buildings, this difference will be less important, especially when using high-quality glazing packages.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Competitive Systems with Similar Parameters<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">Competitive systems with similar parameters are available on the market, which may be cheaper or offer certain additional advantages. Systems such as Yawal TM 74 (Uf=1.2 W\/(m\u00b2K)) or Sch\u00fcco AWS 70.HI (Uw=1.1 W\/(m\u00b2K)) offer similar parameters, sometimes at a lower price.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Greater Weight Than PVC Systems<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">Aluminum windows, including MB-86 ST, are heavier than PVC windows, which requires solid installation and appropriate load-bearing structure. This may increase installation costs and limit the possibilities of use in some existing buildings with weaker construction.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Limited Innovation<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">As the basic variant of the MB-86 system, the ST version does not offer advanced solutions available in more expensive models, such as aerogel (as in AERO) or additional thermal inserts (as in SI). It is a standard solution without distinguishing technological innovations.<\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12451\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-8.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"comparison-with-competition\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Comparison with Competition<\/h2>\n<p class=\"whitespace-pre-wrap break-words\">To better understand the position of MB-86 ST in the market, it is worth comparing it with competitive systems:<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">MB-86 SI (variant from the same family)<\/h3>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\">Better insulation: Uf=0.92 W\/(m\u00b2K) vs. 1.39 W\/(m\u00b2K) in ST<\/li>\n<li class=\"whitespace-normal break-words\">Higher price: about 20-30% more expensive than the ST version<\/li>\n<li class=\"whitespace-normal break-words\">Better choice for energy-efficient buildings<\/li>\n<\/ul>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Cortizo Cor 70<\/h3>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\">Similar insulation: Uf=1.4 W\/(m\u00b2K)<\/li>\n<li class=\"whitespace-normal break-words\">Lower price<\/li>\n<li class=\"whitespace-normal break-words\">Slightly less tightness<\/li>\n<\/ul>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Ponzio PE 68<\/h3>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\">Slightly better insulation: Uf=1.3 W\/(m\u00b2K)<\/li>\n<li class=\"whitespace-normal break-words\">Similar price<\/li>\n<li class=\"whitespace-normal break-words\">Wider choice of colors and finishes<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap break-words\">In industry rankings, such as Debesto 2023, MB-86 ST usually ranks in the middle of the pack, standing out with a good price-to-quality ratio. The system is particularly competitive in the mid-range segment, where the highest thermal parameters are not required, but durability and aesthetics count.<\/p>\n<p class=\"whitespace-pre-wrap break-words\"><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12457\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-9.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"applications-and-user-opinions\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Applications and User Opinions<\/h2>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Ideal Applications<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST works best in:<\/p>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\">Mid-range residential and office buildings<\/li>\n<li class=\"whitespace-normal break-words\">Modern-style single-family homes<\/li>\n<li class=\"whitespace-normal break-words\">Shop windows and smaller commercial facilities<\/li>\n<li class=\"whitespace-normal break-words\">Projects where the priority is a balance between cost and parameters<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap break-words\">The system is particularly popular in regions with a moderate climate, such as central Poland, where extreme thermal requirements are not necessary.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">User Opinions<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">User opinions of MB-86 ST are generally positive, albeit with certain reservations:<\/p>\n<p class=\"whitespace-pre-wrap break-words\">&#8220;The windows are quiet and durable, but on the coldest days, you can notice a difference compared to more expensive models with better insulation.&#8221;<\/p>\n<p class=\"whitespace-pre-wrap break-words\">&#8220;Simple, elegant design and easy handling \u2013 it&#8217;s hard to find a better choice in aluminum at this price.&#8221;<\/p>\n<p class=\"whitespace-pre-wrap break-words\">Users primarily appreciate the aesthetics, durability, and solidity of the system, while acknowledging that it is not a solution for the most demanding energy-efficient projects.<\/p>\n<p class=\"whitespace-pre-wrap break-words\"><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-12463\" src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10.jpg\" data-orig-src=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10.jpg\" alt=\"MB-86-st\" width=\"2048\" height=\"1150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272048%27%20height%3D%271150%27%20viewBox%3D%270%200%202048%201150%27%3E%3Crect%20width%3D%272048%27%20height%3D%271150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-200x112.jpg 200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-300x168.jpg 300w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-400x225.jpg 400w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-600x337.jpg 600w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-768x431.jpg 768w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-800x449.jpg 800w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-1024x575.jpg 1024w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-1200x674.jpg 1200w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10-1536x863.jpg 1536w, https:\/\/sapor.pl\/wp-content\/uploads\/2025\/03\/aluprof-MB-86-st-10.jpg 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<h2 id=\"summary-and-recommendation\" class=\"text-xl font-bold text-text-200 mt-1 -mb-0.5\">Summary and Recommendation<\/h2>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST is a solid, versatile window and door system that offers a good balance between technical parameters and price. With a rating of 7.5\/10, it is a solution that can be recommended with a clear conscience for most standard residential and commercial projects.<\/p>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">For Whom Will MB-86 ST Be the Best Choice?<\/h3>\n<ul class=\"[&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\">\n<li class=\"whitespace-normal break-words\"><strong>For architects<\/strong>: Looking for a durable, aesthetic system for mid-range projects, where the balance between budget and quality matters.<\/li>\n<li class=\"whitespace-normal break-words\"><strong>For distributors<\/strong>: The system is easy to sell, offers a good margin, and rarely generates after-sales problems thanks to its reliability.<\/li>\n<li class=\"whitespace-normal break-words\"><strong>For individual users<\/strong>: An ideal solution for people who value durability and aesthetics but do not require the highest thermal parameters.<\/li>\n<li class=\"whitespace-normal break-words\"><strong>For manufacturers<\/strong>: Easy to produce, not requiring advanced technologies, ideal for companies looking for stable orders.<\/li>\n<\/ul>\n<h3 class=\"text-lg font-bold text-text-200 mt-1 -mb-1.5\">Final Recommendation<\/h3>\n<p class=\"whitespace-pre-wrap break-words\">MB-86 ST is a system worth recommending for projects where durability, aesthetics, and good (though not the highest) thermal parameters are key. If you are looking for a solution for a passive house or a building with the highest energy requirements, it is worth considering the SI or AERO variants. For most standard applications, however, MB-86 ST will be the optimal choice, offering an excellent price-to-quality ratio.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">As a company specializing in high-quality aluminum solutions and custom-tailored projects, we can confirm that MB-86 ST is a system that works in practice and rarely disappoints customer expectations.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Are you looking for an aluminum window system that offers  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":12411,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[353],"tags":[],"class_list":["post-12692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Review of Aluminum Window MB-86 ST - 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