![Man with glasses looking closely to aluminium corner sample.](/sites/default/files/public/styles/page_header_medium/public/2025-05/reynaers-aluminium-eco-design-1.jpg?h=f0ab467d&itok=XT6u0NNK) # Eco Design To design for the future is to design for the better. For Reynaers Aluminium, sustainability is not a simple buzzword. We apply our environmental principles already at the technical drawing board, incorporating the latest futureproof practices in the design of our products. From responsible material choices to circular considerations, we approach every detail with planet Earth in mind. ## SlimLine 38: minimalistic and responsible design SlimLine’s iconic steel-look design offers you ultra-slim aesthetics and low-maintenance energy efficiency. A unique light-weight aluminium solution that suits both new builds and renovation projects. Over the years, the elegant windows and doors series has been perfected with the future in mind. Discover SlimLine 38s sustainable benefits by clicking the button below. [ Read more ](/products/windows/slimline-38 "Read more") ![Brick mid-rise apartment building with steel-look windows.](/sites/default/files/public/styles/landscape_small/public/2025-05/reynaers-aluminium-eco-design-2.jpg?h=790be497&itok=2dtedTPf) #### Eco Design has been a focal point of our company philosophy for many years. When we develop new products, sustainability is always at the forefront. Themes such as material use, increasing thermal performance and circularity play an important role in this. Tijs Van Boven Products & Services Manager, Reynaers Aluminium ![Tijs van Boven](/sites/default/files/public/styles/image_square/public/2025-05/reynaers-aluminium-tijs-van-boven.jpg?h=cd1cd23f&itok=YpQ6SyIf) ## MasterPatio Award-winning sustainable (lift-)slide doors MasterPatio sliding doors are a trusted solution with fabricators, architects and end users alike. The system achieves superior insulation levels, offers endless design options and can withstand extreme weather conditions. However, MasterPatio is also a sustainable choice. The Cradle to Cradle® certified solution contains 100% low carbon thermal breaks, which lowers its overall carbon impact. MasterPatio has earned multiple international awards, including a Red Dot Award (2021) and Archiproducts Sustainable Design Award (2021). [ Read more ](/inspiration/stories/masterpatio-our-most-complete-lift-slide-solution-yet "Read more") ![Alt: Interior view of modern apartment with wide sliding doors and two people on a balcony.](/sites/default/files/public/styles/landscape_small/public/2025-05/reynaers-aluminium-project-linkeroever-1.jpg?h=abfe72d1&itok=n84KtLe6) ![Alt: Architectural render of modern private home with floor-to-ceiling glass facades.](/sites/default/files/public/styles/landscape_small/public/2025-05/reynaers-aluminium-products-slimwall-35.jpg?h=8f91226c&itok=4Bk-Ps-5) ## SlimWall 35 Ultra-slim residential stick façades Thanks to its slim aesthetics and high insulation performance, SlimWall 35 incorporates sustainability in every detail. For instance, its production process has been optimised to avoid waste as much as possible, while the limited number of components helps raise efficiency even more. This Passive House-certified façade solution too has been lauded with an Archiproducts Sustainable Design Award (2024). [ Read more ](/inspiration/stories/products/5-reasons-why-slimwall-35-ideal-aluminium-facade-you "Read more") ## Discover other sustainable dimensions - ![Woman looking out of window at nightfall.](/sites/default/files/public/styles/teaser_small/public/2025-05/reynaers_linkeroever2-min.jpg?h=298ea7f7&itok=W0Nk7OIo) Energy Efficiency [ Energy Efficiency ](/sustainability-from-every-angle/low-energy-during-use "Energy Efficiency") - ![Woman drinking coffee behind glass window on a rainy day.](/sites/default/files/public/styles/teaser_small/public/2022-06/Reynaers-Aluminium-water-tightness-1.jpg?h=8c1344d8&itok=jDlpLXoV) Extreme Weather Resilience [ Extreme Weather Resilience ](/sustainability-from-every-angle/extreme-weather-resilience "Extreme Weather Resilience ") - ![Orange high-rise building looked from below.](/sites/default/files/public/styles/teaser_small/public/2025-05/reynaers-aluminium-recyclable-1_0.jpg?h=f0ab467d&itok=1NGbcSvL) Durable, Recyclable & Low-Carbon Materials [ Durable, Recyclable & Low-Carbon Materials ](/sustainability-from-every-angle/durable-recyclable-low-carbon-materials "Durable, Recyclable & Low-Carbon Materials ") - ![Modular building panel lifted next to skyscraper.](/sites/default/files/public/styles/teaser_small/public/2025-05/reynaers-aluminium-modularity-1%20%281%29.jpg?h=a51a5cf9&itok=GehWY9uJ) Modularity & Ease of Disassembly [ Modularity & Ease of Disassembly ](/sustainability-from-every-angle/modularity-disassembly "Modularity & Ease of Disassembly ") - ![Top view man and woman sitting at table drinking coffee.](/sites/default/files/public/styles/teaser_small/public/2025-05/reynaers-aluminium-certified-data-1_0.jpg?h=f0ab467d&itok=5-ijmyqM) Certified & Traceable Information [ Certified & Traceable Information ](/sustainability-from-every-angle/certified-traceable-information "Certified & Traceable Information ") - ![ Modern concrete villa in forest](/sites/default/files/public/styles/teaser_small/public/2025-05/reynaers-resized-8MP.jpg?h=09198c8e&itok=4gOiPRxa) EU Green Deal compliance [ EU Green Deal compliance ](/sustainability-from-every-angle/eu-green-deal-compliance "EU Green Deal compliance") ## Sustainability starts with asking the right questions. [ Get in touch ](/contact "Get in touch")