[ Overview ](/products/windows/conceptsystem-77/high-insulation) [ Technical information ](/products/windows/conceptsystem-77/high-insulation/technical-info) [ Downloads ](/products/windows/conceptsystem-77/high-insulation/downloads) Open tab menu *ConceptSystem 77*# High Insulation ![CS 77-HI+](/sites/default/files/public/styles/product_header/public/inriver/images/71015_Dominion%20Tower%2017.jpg?h=d73728dc&itok=EWKJiHBO) ![Paralline Low](/sites/default/files/public/styles/product_header_lifestyle/public/inriver/lifestyle_image/103468_REYNAERS_7.jpg?h=90384b19&itok=rasj4zXm) ConceptSystem 77 is a trusted aluminium window solution that has been fully optimised to match all your project needs. Improve your indoor comfort with this High Insulation system upgrade. ###### Need help? Search and compare products [ Get started ](/products-0?f%5B0%5D=product_group%3A493&f%5B1%5D=variant_type_variants%3A9850&s=CS%2077%20HI "Get started") - ![Increased thermal insulation](https://www.reynaers.africa/sites/default/files/public/inriver/icons/116841_Performance.svg) Increased thermal insulation - ![Versatile window solution to match any project needs](https://www.reynaers.africa/sites/default/files/public/inriver/icons/116846_Design.svg) Versatile window solution to match any project needs - ![Well-balanced price-performance-features mix](https://www.reynaers.africa/sites/default/files/public/inriver/icons/116840_Economics.svg) Well-balanced price-performance-features mix ## Technical details ### Thermal Insulation - **High** - Uf = 1.9 W/m²K ### Acoustics - Rw(C;Ctr) = 42(-2;-4) dB dB - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133263_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0006.png?itok=VNEaSSTc) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133262_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0007.png?itok=dZzqMPRa) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133270_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0008.png?itok=kKJLyzQi) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/images/133264_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0009.png?itok=pT8zcPAj) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133271_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0010.png?itok=ySF2l8Ts) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133273_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0011.png?itok=fgVySC0B) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133274_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0012.png?itok=Ec7CiF2T) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133275_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0013.png?itok=gpAXcW0F) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133276_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0014.png?itok=HixVsGjD) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133277_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0015.png?itok=BYSh4tl8) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133278_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0016.png?itok=SCzT4hwn) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133279_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0017.png?itok=1be7F6MB) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133280_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0018.png?itok=taVz8IVF) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133281_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0019.png?itok=sVm_aEns) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133282_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0020.png?itok=bmOyv8aV) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133283_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0021.png?itok=iuY3vK3g) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133284_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0022.png?itok=mviHjvyU) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133285_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0023.png?itok=hO241RyT) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133286_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0024.png?itok=muhrxayU) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133287_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0025.png?itok=wfm0df_H) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133288_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0026.png?itok=OUTqcwOZ) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133289_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0027.png?itok=8D2BYg4Z) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133290_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0028.png?itok=dMhBK2JW) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133291_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0029.png?itok=rHPjRpB9) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133292_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0030.png?itok=0ITgaX9U) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133293_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0031.png?itok=z8j5FR8m) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133294_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0032.png?itok=Nvcn4OWB) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133295_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0033.png?itok=H4dIz--9) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133296_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0034.png?itok=V067Xr08) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133297_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0035.png?itok=4SWgoz72) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133298_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0036.png?itok=ne9ZPWYX) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133299_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0037.png?itok=LTk5KcoT) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133300_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0038.png?itok=C9VsBI4J) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133301_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0039.png?itok=ZJaW9j4x) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133302_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0040.png?itok=KmZeV92G) - ![CS 77 HI](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/133303_INVA-309411_CS_77_-_WINDOW_HI_INWARD_OPENING_corr2_Final_Render_0041.png?itok=QaQVQn7Z) ### Height Vent - Min 600 mm - Max 2800 mm ### Frame-Vent Width Open In - Min 89 mm 360° [ Full specifications ](https://www.reynaers.africa/products/windows/conceptsystem-77/high-insulation/technical-info) ## Labels & Certifications - ![Cradle to Cradle Bronze](https://www.reynaers.africa/sites/default/files/public/inriver/icons/144484_C2C_full_scope_bronze_version%205.0_rgb.svg) ![DigiTrace step 4](/sites/default/files/public/styles/cta_block_left/public/2023-12/Reynaers%20Aluminium-DigiTrace_35.jpg?h=b5e777bf&itok=gD2ORvzx) Effortless access to your element’s digital product passport ## DigiTrace A unique element identifier provides you with a wealth of information in a matter of seconds, eliminating the need for any manual search. A quick scan allows immediate access to all system and technical details specific to your element as well as to documentation, certificates and contact details of your fabricator. [ Discover more about DigiTrace ](/digitrace "Discover more about DigiTrace") ![DigiTrace](/sites/default/files/public/styles/cta_block_right/public/2023-12/Reynaers%20Aluminium-DigiTrace_38.jpg?h=b193cbc8&itok=brhyrck7) Effortless access to your element’s digital product passport