[ Overview ](/products/windows/masterline-8/functional-window-0) [ Technical information ](/products/windows/masterline-8/functional-window-0/technical-info) [ Downloads ](/products/windows/masterline-8/functional-window-0/downloads) Open tab menu *MasterLine 8*# Functional Window ![MasterLine 8 Functional](/sites/default/files/public/styles/product_header/public/inriver/images/59226_Luciestraat%20Maasmechelen-7943-1019.jpg?h=56d0ca2e&itok=I23XJR4P) ![MasterLine 8 Functional](/sites/default/files/public/styles/product_header/public/inriver/images/59227_Luciestraat%20Maasmechelen-7942-1019.jpg?h=56d0ca2e&itok=GdgB57ZL) ![CS 77 Standard](/sites/default/files/public/styles/product_header_lifestyle/public/inriver/lifestyle_image/103465_REYNAERS_5.jpg?h=5cae7f33&itok=kHMgbPm7) MasterLine 8 is a high-quality window system that links countless design options to best-in-class performance and unrivalled production speed. The standard product offers a Functional design, which means it will fit any building style. ###### Need help? Search and compare products [ Get started ](/products-0?f%5B0%5D=product_group%3A493&f%5B1%5D=variant_type_variants%3A9849&f%5B2%5D=variant_type_variants%3A9850&f%5B3%5D=variant_type_variants%3A9855&s=MasterLine%208%20Functional "Get started") - ![Our flagship product, with a wide field of applicability](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116841_Performance.svg) Our flagship product, with a wide field of applicability - ![Excellent thermal and AWW performances](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116841_Performance.svg) Excellent thermal and AWW performances - ![Highly competitive price-quality ratio](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116846_Design.svg) Highly competitive price-quality ratio ## Technical details ### Thermal Insulation - **Super High** - Uw double = 0.23 Btu/hr.ft².°F - Uw triple = 0.16 Btu/hr.ft².°F ### Air-Water Tightness - Air = 0.01 cfm/ft³ - Water = 20 psf ### AAMA Rating - Class AW - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135118_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0006.png?itok=XoqRbpTF) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135119_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0007.png?itok=Hmy9aFqy) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135122_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0008.png?itok=aPrffoU3) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/images/135120_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0009.png?itok=s0MmoHee) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135128_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0010.png?itok=6_SV845v) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135129_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0011.png?itok=8O2AVZUC) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135130_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0012.png?itok=XF4Jj3I-) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135131_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0013.png?itok=MUlOybB5) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135132_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0014.png?itok=uKSPG14O) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135133_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0015.png?itok=4_2tD31z) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135134_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0016.png?itok=96VglqZd) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135135_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0017.png?itok=1vz2vwit) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135136_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0018.png?itok=o5aThplN) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135137_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0019.png?itok=uLYDH7b-) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135138_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0020.png?itok=uW_p2zhE) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135139_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0021.png?itok=5WqaFfQn) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135140_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0022.png?itok=lqMxwQfg) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135141_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0023.png?itok=8crqNLmr) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135142_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0024.png?itok=EacuBgNq) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135143_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0025.png?itok=DM4TUVUS) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135144_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0026.png?itok=PyZJzaC4) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135145_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0027.png?itok=lpCTVCab) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135146_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0028.png?itok=HyvfIxoC) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135147_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0029.png?itok=KcsO8EvL) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135148_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0030.png?itok=z7jV3MLr) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135149_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0031.png?itok=n1OCR1DF) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135150_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0032.png?itok=PhOlpepe) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135151_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0033.png?itok=jPnRX9RY) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135152_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0034.png?itok=skWy5If2) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135153_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0035.png?itok=Z42UekI0) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135154_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0036.png?itok=iYtjQdz8) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135155_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0037.png?itok=4YP3w_9l) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135156_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0038.png?itok=j2-Dt-eg) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135157_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0039.png?itok=CKe8SnZ5) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135158_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0040.png?itok=zf2Q-8vJ) - ![MasterLine 8 Functional](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/135159_invp-010967__ML_8_-_WINDOW_FUNCTIONAL_INWARD_OPENING_corr2_Final_Render_0041.png?itok=4VwcMyni) ### Acoustics - STC = 50 dB - OITC = 44 dB ### Height Vent - Min 23 5/8 inch - Max 110 1/4 inch ### Frame-Vent Width Open In - Min 3 13/16 inch 360° [ Full specifications ](https://www.reynaers.ca/products/windows/masterline-8/functional-window-0/technical-info) ## Product options Personalise MasterLine 8 Functional Window with the following options ![Concealed Hinges](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116964_Concealed%20Hinges.svg)### Concealed Hinges The details are the design, concealed hinges are the finishing touch. ![Concealed Drainage](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116963_Concealed%20Drainage.svg)### Concealed Drainage No more plastic cover caps, enjoy those clean lines. ![Flyscreen](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116983_Flyscreen.svg)### Flyscreen Enjoy cool summer evenings, without losing sleep. ![Balustrade](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116979_Balustrade.svg)### Balustrade Safety can equal beauty. ![Motorised](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116982_Motorised.svg)### Motorised Comfortable to use, even remotely. ![Glass Corner](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116978_Glass%20Corner.svg)### Glass Corner Glass to glass connection without profiles obstructing the view ![Clip on cover cap](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116967_Face%20Cap%20Variants.svg)### Clip on cover cap Choose the look that fits your project. The available options depend on profile and configuration choices. Please contact your Reynaers Aluminium representative. ## Labels & Certifications - ![Cradle to Cradle Bronze](https://www.reynaers.ca/sites/default/files/public/inriver/icons/144484_C2C_full_scope_bronze_version%205.0_rgb.svg) - ![](https://www.reynaers.ca/sites/default/files/public/inriver/icons/124826_Minergie_Logo.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