{"id":207462,"date":"2023-12-12T12:33:22","date_gmt":"2023-12-12T17:33:22","guid":{"rendered":"https:\/\/www.constructionspecifier.com\/?p=207462"},"modified":"2023-12-12T12:33:22","modified_gmt":"2023-12-12T17:33:22","slug":"mullion-free-glass-facade-shapes-d-c-s-modern-marvel","status":"publish","type":"post","link":"https:\/\/www.constructionspecifier.com\/mullion-free-glass-facade-shapes-d-c-s-modern-marvel\/","title":{"rendered":"Mullion-free glass facade shapes D.C.\u2019s modern marvel"},"content":{"rendered":"<div class=\"updated\">\n<div class=\"wonderpluginslider-container\" id=\"wonderpluginslider-container-334\" style=\"max-width:750px;margin:0 auto;padding-left:0px;padding-right:0px;padding-top:84px;padding-bottom:0px;\"><div class=\"wonderpluginslider\" id=\"wonderpluginslider-334\" data-sliderid=\"334\" data-width=\"750\" data-height=\"650\" data-skin=\"topcarousel\" data-usejsforfullbrowserwidth=\"false\" data-fullbrowserwidth=\"false\" data-playmutedandinlinewhenautoplay=\"false\" data-addextraattributes=\"false\" data-autoplay=\"false\" data-randomplay=\"false\" data-loadimageondemand=\"false\" data-transitiononfirstslide=\"false\" data-autoplayvideo=\"false\" data-isresponsive=\"true\" data-fullwidth=\"false\" data-isfullscreen=\"false\" data-ratioresponsive=\"false\" data-showtext=\"true\" data-showtimer=\"true\" data-showbottomshadow=\"false\" data-navshowpreview=\"false\" data-textautohide=\"false\" data-pauseonmouseover=\"false\" data-lightboxresponsive=\"true\" data-lightboxshownavigation=\"false\" data-lightboxshowtitle=\"true\" data-lightboxshowdescription=\"false\" data-texteffectresponsive=\"true\" data-donotinit=\"false\" data-addinitscript=\"false\" data-lightboxfullscreenmode=\"false\" data-lightboxcloseonoverlay=\"true\" data-lightboxvideohidecontrols=\"false\" data-lightboxnogroup=\"false\" data-shownav=\"true\" data-navthumbresponsive=\"false\" data-navshowfeaturedarrow=\"true\" data-inityoutube=\"true\" data-initvimeo=\"true\" data-navshowplaypause=\"true\" data-navshowarrow=\"false\" data-navshowbuttons=\"false\" data-lightboxshowsocial=\"false\" data-lightboxshowfacebook=\"true\" data-lightboxshowtwitter=\"true\" data-lightboxshowpinterest=\"true\" data-lightboxsocialrotateeffect=\"true\" data-showsocial=\"false\" data-showfacebook=\"true\" data-showtwitter=\"true\" data-showpinterest=\"true\" data-socialrotateeffect=\"true\" data-disableinlinecss=\"false\" data-triggerresize=\"false\" data-lightboxautoslide=\"false\" data-lightboxshowtimer=\"true\" data-lightboxshowplaybutton=\"true\" data-lightboxalwaysshownavarrows=\"false\" data-lightboxshowtitleprefix=\"true\" data-titleusealt=\"false\" data-outputtext=\"false\" data-titletag=\"h1\" data-descriptiontag=\"h2\" data-scalemode=\"fit\" data-arrowstyle=\"mouseover\" data-transition=\"fade\" data-loop=\"0\" data-border=\"0\" data-slideinterval=\"8000\" data-arrowimage=\"arrows-48-48-4.png\" data-arrowwidth=\"48\" data-arrowheight=\"48\" data-arrowtop=\"50\" data-arrowmargin=\"0\" data-ga4account=\"\" data-googleanalyticsaccount=\"\" data-navplaypauseimage=\"navplaypause-48-48-0.png\" data-navarrowimage=\"navarrows-28-28-0.png\" data-navstyle=\"thumbnails\" data-navimage=\"bullet-24-24-5.png\" data-navwidth=\"109\" data-navheight=\"72\" data-navspacing=\"4\" data-navmarginx=\"16\" data-navmarginy=\"-84\" data-navposition=\"top\" data-navthumbnavigationstyle=\"arrowinside\" data-navthumbnavigationarrowimage=\"carouselarrows-32-32-3.png\" data-navthumbnavigationarrowimagewidth=\"32\" data-navthumbnavigationarrowimageheight=\"32\" data-playvideoimage=\"playvideo-64-64-0.png\" data-playvideoimagewidth=\"64\" data-playvideoimageheight=\"64\" data-lightboxthumbwidth=\"90\" data-lightboxthumbheight=\"60\" data-lightboxthumbtopmargin=\"12\" data-lightboxthumbbottommargin=\"4\" data-lightboxbarheight=\"64\" data-lightboxtitlebottomcss=\"color:#333; 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color:#333;\" data-descriptioncss=\"display:block; position:relative; font:14px Georgia,serif,Arial; color:#333; margin-top:8px;\" data-buttoncss=\"display:block; position:relative; margin-top:8px;\" data-titlecssresponsive=\"font-size:12px;\" data-descriptioncssresponsive=\"display:none !important;\" data-buttoncssresponsive=\"\" data-jsfolder=\"https:\/\/www.constructionspecifier.com\/wp-content\/plugins\/wonderplugin-slider\/engine\/\" style=\"display:none;\" ><ul class=\"amazingslider-slides\"  style=\"display:none;\"><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Washington-District-of-Columbia_credit-Iwan-Baan-web.jpg\" alt=\"2050 M street in Washington, D.C. Its mullion-free facade creates a unique landmark in the capital.\" title=\"\" data-description=\"2050 M street in Washington, D.C. Its mullion-free facade creates a unique landmark in the capital. Photos by Iwan Baan\/Courtesy REX.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Corner-Horizontal-Layout_credit-Iwan-Baan-web.jpg\" alt=\"A closeup of the glass facade at the building\u2019s corner.\" title=\"\" data-description=\"A closeup of the glass facade at the building\u2019s corner.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Recessed-Columns-and-Tapered-Ceilings_credit-Iwan-Baan-web.jpg\" alt=\"The transparency of the facade that lets natural light in. The photo also shows the recessed columns and tapered ceilings.\" title=\"\" data-description=\"The transparency of the facade that lets natural light in. The photo also shows the recessed columns and tapered ceilings.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Office-Interior-Looking-West_credit-Iwan-Baan-web.jpg\" alt=\"The facade offers unobstructed views of the city, while its curved shape is repeated in the floor detail to lend a sense of aesthetic cohesion.\" title=\"\" data-description=\"The facade offers unobstructed views of the city, while its curved shape is repeated in the floor detail to lend a sense of aesthetic cohesion.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Lavatory_credit-Iwan-Baan-web.jpg\" alt=\"The curved pattern of the facade in a lavatory sink detail.\" title=\"\" data-description=\"The curved pattern of the facade in a lavatory sink detail.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Curtain-Wall-Plan-Detail_credit-REX-web.png\" alt=\"Image courtesy REX.\" title=\"\" data-description=\"A diagram showing the detail of an intersection of glass panels on the facade. The inherent rigidity of the curved glass eliminates the need for structural mullions\u2014leaving only a minimalist unitized frame which improves sightlines and increases usable floor area. Image courtesy REX.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Glass-Prototype_credit-Tishman-Speyer-web.jpg\" alt=\"The prototyping of the pre-purchased glass.\" title=\"\" data-description=\"The prototyping of the pre-purchased glass. Photo courtesy Tishman Speyer Properties.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Curtain-Wall-Panels_credit-Front-consultant-web.jpg\" alt=\"The finalized glass panels.\" title=\"\" data-description=\"The finalized glass panels. Photo courtesy Front Inc.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Lobby_credit-Iwan-Baan.jpg\" alt=\"The lobby area creates a weighty contrast with the lightness of glass in the exterior.\" title=\"\" data-description=\"The lobby area creates a weighty contrast with the lightness of glass in the exterior.  Photo courtesy Iwan Baan.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_DC-Aerial_credit-James-Kirkikis-Shutterstock-web.jpg\" alt=\"An aerial view of the capital city, showing similar-scaled buildings exhibiting historical architectural styles dominated by masonry and concrete forms.\" title=\"\" data-description=\"An aerial view of the capital city, showing similar-scaled buildings exhibiting historical architectural styles dominated by masonry and concrete forms.\" \/><\/li><\/ul><ul class=\"amazingslider-thumbnails\"  style=\"display:none;\"><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Washington-District-of-Columbia_credit-Iwan-Baan-web-300x196.jpg\" alt=\"2050 M street in Washington, D.C. Its mullion-free facade creates a unique landmark in the capital.\" title=\"\" data-description=\"2050 M street in Washington, D.C. Its mullion-free facade creates a unique landmark in the capital. Photos by Iwan Baan\/Courtesy REX.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Corner-Horizontal-Layout_credit-Iwan-Baan-web-300x200.jpg\" alt=\"A closeup of the glass facade at the building\u2019s corner.\" title=\"\" data-description=\"A closeup of the glass facade at the building\u2019s corner.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Recessed-Columns-and-Tapered-Ceilings_credit-Iwan-Baan-web-200x300.jpg\" alt=\"The transparency of the facade that lets natural light in. The photo also shows the recessed columns and tapered ceilings.\" title=\"\" data-description=\"The transparency of the facade that lets natural light in. The photo also shows the recessed columns and tapered ceilings.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Office-Interior-Looking-West_credit-Iwan-Baan-web-300x200.jpg\" alt=\"The facade offers unobstructed views of the city, while its curved shape is repeated in the floor detail to lend a sense of aesthetic cohesion.\" title=\"\" data-description=\"The facade offers unobstructed views of the city, while its curved shape is repeated in the floor detail to lend a sense of aesthetic cohesion.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Lavatory_credit-Iwan-Baan-web-300x200.jpg\" alt=\"The curved pattern of the facade in a lavatory sink detail.\" title=\"\" data-description=\"The curved pattern of the facade in a lavatory sink detail.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Curtain-Wall-Plan-Detail_credit-REX-web-300x232.png\" alt=\"Image courtesy REX.\" title=\"\" data-description=\"A diagram showing the detail of an intersection of glass panels on the facade. The inherent rigidity of the curved glass eliminates the need for structural mullions\u2014leaving only a minimalist unitized frame which improves sightlines and increases usable floor area. Image courtesy REX.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Glass-Prototype_credit-Tishman-Speyer-web-300x200.jpg\" alt=\"The prototyping of the pre-purchased glass.\" title=\"\" data-description=\"The prototyping of the pre-purchased glass. Photo courtesy Tishman Speyer Properties.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Curtain-Wall-Panels_credit-Front-consultant-web-300x294.jpg\" alt=\"The finalized glass panels.\" title=\"\" data-description=\"The finalized glass panels. Photo courtesy Front Inc.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_Lobby_credit-Iwan-Baan-300x129.jpg\" alt=\"The lobby area creates a weighty contrast with the lightness of glass in the exterior.\" title=\"\" data-description=\"The lobby area creates a weighty contrast with the lightness of glass in the exterior.  Photo courtesy Iwan Baan.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/12\/REX_2050-M-Street_DC-Aerial_credit-James-Kirkikis-Shutterstock-web-300x188.jpg\" alt=\"An aerial view of the capital city, showing similar-scaled buildings exhibiting historical architectural styles dominated by masonry and concrete forms.\" title=\"\" data-description=\"An aerial view of the capital city, showing similar-scaled buildings exhibiting historical architectural styles dominated by masonry and concrete forms.\" \/><\/li><\/ul><\/div><\/div><div id=\"amazingslider_customtexteffect_334\" style=\"display:none;\" data-texteffect=\"{&quot;Underneath center&quot;:{&quot;textstyle&quot;:&quot;static&quot;,&quot;textpositionstatic&quot;:&quot;bottomoutside&quot;,&quot;textautohide&quot;:false,&quot;textpositionmarginstatic&quot;:0,&quot;textpositiondynamic&quot;:&quot;bottomleft&quot;,&quot;textpositionmarginleft&quot;:24,&quot;textpositionmarginright&quot;:24,&quot;textpositionmargintop&quot;:24,&quot;textpositionmarginbottom&quot;:24,&quot;texteffect&quot;:&quot;slide&quot;,&quot;texteffecteasing&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration&quot;:600,&quot;texteffectslidedirection&quot;:&quot;left&quot;,&quot;texteffectslidedistance&quot;:30,&quot;texteffectdelay&quot;:500,&quot;texteffectseparate&quot;:false,&quot;texteffect1&quot;:&quot;slide&quot;,&quot;texteffectslidedirection1&quot;:&quot;right&quot;,&quot;texteffectslidedistance1&quot;:120,&quot;texteffecteasing1&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration1&quot;:600,&quot;texteffectdelay1&quot;:1000,&quot;texteffect2&quot;:&quot;slide&quot;,&quot;texteffectslidedirection2&quot;:&quot;right&quot;,&quot;texteffectslidedistance2&quot;:120,&quot;texteffecteasing2&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration2&quot;:600,&quot;texteffectdelay2&quot;:1500,&quot;textcss&quot;:&quot;display:block; padding:12px 0px; text-align:center; margin-top:4px;&quot;,&quot;textbgcss&quot;:&quot;display:none;&quot;,&quot;titlecss&quot;:&quot;display:block; position:relative; font:bold 16px Georgia,serif,Arial; color:#333;&quot;,&quot;descriptioncss&quot;:&quot;display:block; position:relative; font:14px Georgia,serif,Arial; color:#333; margin-top:8px;&quot;,&quot;buttoncss&quot;:&quot;display:block; position:relative; margin-top:8px;&quot;,&quot;texteffectresponsive&quot;:true,&quot;texteffectresponsivesize&quot;:640,&quot;titlecssresponsive&quot;:&quot;font-size:12px;&quot;,&quot;descriptioncssresponsive&quot;:&quot;display:none !important;&quot;,&quot;buttoncssresponsive&quot;:&quot;&quot;,&quot;addgooglefonts&quot;:false,&quot;googlefonts&quot;:&quot;&quot;,&quot;textleftrightpercentforstatic&quot;:40}}\"><\/div><script>function wonderslider_334_appendcss(csscode) {var head=document.head || document.getElementsByTagName(\"head\")[0];var style=document.createElement(\"style\");head.appendChild(style);style.type=\"text\/css\";if (style.styleSheet){style.styleSheet.cssText=csscode;} else {style.appendChild(document.createTextNode(csscode));}};wonderslider_334_appendcss(\"#wonderpluginslider-334 .star-rating { \tdisplay: inline-block; }\");<\/script>\n<\/div>\n<p>In the heart of Washington, D.C., the architectural landmark, 2050 M Street, stands as a pioneer transcending traditional norms with its distinctive design. Spanning 41,800 m\u00b2 (450,000 sf), this structure is a fusion of modern aesthetics and architectural tradition, redefining the city&#8217;s skyline.<\/p>\n<p>Washington, D.C., is characterized by a duality in architectural styles\u2014the heavy masonry structures reflecting Beaux Arts, neoclassical, Art Deco, and brutalist influences, and the sleek modern buildings with transparent glass facades. Although the structures have matching scales due to zoning codes, there is an aesthetic dissonance created between them.<\/p>\n<p>Designed by REX with Kendall\/Heaton Associates as the executive architect, 2050 M Street sets a new benchmark for premium office spaces. The building\u2019s curtain wall, devoid of obstructive mullions, achieves transparency with floor-to-ceiling glass, introducing a novel architectural paradigm that blends the advantages of an all-glass structure with the modulation of a high-relief facade.<\/p>\n<p>The exterior boasts 978 uniform insulated-glass panels, each with a subtle curvature using a bending tempering furnace. This curved glass eliminates structural mullions, reducing outer layer thickness and enhancing transparency. Perimeter columns are strategically recessed 3.8 m (12.5 ft) from the facade, and the ceiling narrows towards the exterior, accentuating the structure\u2019s airy quality. A reflective pyrolytic coating on the exterior and a low-e coating within the glass cavity manage solar heat gain, creating a kaleidoscopic effect.<\/p>\n<p>In stark contrast to the crystalline exterior, the lobby offers a luxurious retreat featuring warm-colored marble, wooden floors, and yacht-inspired aesthetics. The fluted geometry of the facade extends into floor treatments and lavatories, ensuring a cohesive design throughout the building.<\/p>\n<p>This architectural triumph was made possible through an innovative procurement approach. A pre-validated glass specification was shared with multiple fabricators, enabling the owner, Tishman Speyer Properties, to pre-purchase high-quality glass at a negotiated cost. This process ensured optical precision, technical viability, and cost control, allowing the creation of a highly customized curtain wall within budget constraints.<\/p>\n<p>The project has garnered acclaim, receiving awards such as the American Institute of Architects New York (AIA NY) Honor Award in 2023, the Council on Tall Buildings and Urban Habitat (CBTUH) Award of Excellence in 2023, and the Mies Crown Hall Americas Prize (MCHAP) Outstanding Projects award in 2022.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the heart of Washington, D.C., the architectural landmark, 2050 M Street, stands as a pioneer transcending traditional norms with its distinctive design. Spanning 41,800 m\u00b2 (450,000 sf), this structure is a fusion of modern aesthetics and architectural tradition, redefining the city&#8217;s skyline.<\/p>\n","protected":false},"author":29853,"featured_media":207463,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1029],"tags":[9093,3078,6042,6757,3340,9098,3851,9095,9096,6041,6722,9097,8991,9094,3309],"class_list":["post-207462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-2050-m-street","tag-art-deco","tag-beaux-arts","tag-brutalist","tag-d-c","tag-front-inc","tag-glass-facade","tag-kendall-heaton-associates","tag-low-e-coating","tag-neoclassical","tag-news","tag-pyrolytic-coating","tag-rex","tag-tishman-speyer-properties","tag-washington","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - 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