{"id":1325,"date":"2026-09-14T18:13:03","date_gmt":"2026-09-14T22:13:03","guid":{"rendered":"https:\/\/research.gsd.harvard.edu\/grg\/?page_id=1325"},"modified":"2026-09-30T18:55:12","modified_gmt":"2026-09-30T22:55:12","slug":"upscaling-wool-ecologies","status":"publish","type":"page","link":"https:\/\/research.gsd.harvard.edu\/grg\/upscaling-wool-ecologies\/","title":{"rendered":"Upscaling Wool Ecologies"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-group alignwide\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"has-medium-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:500\">Grinham Research Group<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Harvard University Graduate School of Design<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity\" \/>\n<\/div><\/div>\n\n\n\n<h1 class=\"wp-block-heading alignwide has-large-font-size\" id=\"h-vesma\" style=\"font-style:normal;font-weight:300\">Upscaling Wool Ecologies<\/h1>\n\n\n\n<h1 class=\"wp-block-heading alignwide has-small-font-size\" style=\"font-style:normal;font-weight:300\">Reconfiguring wool&#8217;s industrial ecology<\/h1>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image alignwide size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"652\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_8-1.jpg\" alt=\"Photograph of wool panel installation in Oslo, Norway\" class=\"wp-image-1424\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_8-1.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_8-1-300x196.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_8-1-768x501.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">The Stock Tank exhibited at the 2026 Oslo Architecture Triennale<\/p>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 id=\"h-project-overview\" class=\"wp-block-heading has-medium-font-size\">Project Overview<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Nature has already invented the world&#8217;s most sophisticated plastics. Long before petrochemicals, organisms developed structural polymers\u2014cellulose, lignin, chitin, collagen, and keratin\u2014that combine mechanical performance, repairability, biodegradability, and carbon storage through millions of years of evolution. Rather than inventing new synthetic materials, this project asks what becomes possible when architecture begins with nature&#8217;s plastics first.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 id=\"h-project-journey\" class=\"wp-block-heading has-medium-font-size\">Project Journey<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Upscaling Wool Ecologies is currently on exhibit at the <a href=\"https:\/\/www.oslotriennale.no\/\" data-type=\"link\" data-id=\"https:\/\/www.oslotriennale.no\/\">2026 Oslo Architecture Triennale<\/a> <\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-embed alignwide is-type-video is-provider-vimeo wp-block-embed-vimeo wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"GRG_Upcycling_Wool_Ecologies\" src=\"https:\/\/player.vimeo.com\/video\/1227106083?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"alignwide has-medium-font-size wp-block-paragraph\" id=\"h-innovation\">Find the paper: <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0921344926002326\" data-type=\"link\" data-id=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0921344926002326\">Upcycling waste wool for regenerative building retrofits: A biocomposite approach<\/a><\/p>\n\n\n\n<p class=\"alignwide has-medium-font-size wp-block-paragraph\" id=\"h-innovation\">Contact the team: <a href=\"mailto:Jgrinham@gsd.harvard.edu\">Jgrinham@gsd.harvard.edu<\/a><\/p>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<h1 id=\"h-project-team\" class=\"wp-block-heading has-small-font-size\" style=\"font-style:normal;font-weight:400\">Project Team<\/h1>\n\n\n\n<p class=\"color: #f542f5 has-black-color has-text-color has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Jonathan Grinham<br>Leonard Palmer<br>Jack Alvarenga<br>James Langford<br>Sophie Hutter<\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator alignwide has-alpha-channel-opacity\" \/>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h2 class=\"wp-block-heading has-medium-font-size\">Wool<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Wool has historically connected landscapes of grazing with regional systems of shearing, collection, grading, scouring, spinning, weaving, manufacturing, and trade. During the twentieth century, synthetic fibers increasingly displaced wool in many applications. At the same time, government reserve-price systems that had helped stabilize wool markets collapsed in major producing countries.<sup>1<\/sup> Global sheep-wool production nevertheless remains substantial. Approximately 1.95 billion kilograms of raw wool are produced annually by roughly 1.2 billion sheep.<sup>2<\/sup> Yet contemporary textile markets use only part of this resource. Approximately 60 percent is used in wool apparel manufacturing, while medium- and coarse-grade fibers face significantly weaker demand.<sup>3<\/sup> Wool that cannot be sold may be stockpiled, burned, buried, or otherwise discarded.<sup>4, 5<\/sup><br><br>Describing this material simply as waste obscures the nature of the problem. The fiber remains a highly organized biological material composed primarily of keratin, a natural protein polymer. Keratin comprises approximately 90\u201395 percent of wool fiber and is stabilized by hydrogen bonds, ionic interactions, hydrophobic forces, and disulfide bridges.<sup>6<\/sup> At the fiber scale, a protective cuticle surrounds the cortex, while the air-filled medulla of coarse fibers provides additional thermal resistance.<sup>7<\/sup> Wool can absorb substantial quantities of moisture, self-extinguish rather than readily propagate flame, and provide useful acoustic absorption.<sup>8<\/sup><br><br>The material has not lost its properties. It has lost its position within an economic and industrial system.<br><br><em>Upcycling Wool Ecologies<\/em> treats waste not as an intrinsic material category but as evidence of a broken relationship among biological production, industrial infrastructure, and economic markets. The design problem becomes one of reconstructing those relationships: Developing new functions for fibers rejected by textile markets while reconnecting agricultural production, regional manufacturing, and architecture.<br><br>The wool used in this exhibition is preconsumer waste from the American Woolen Company in Stafford Springs, Connecticut. First established in 1842, it is one of the few remaining integrated woolen mills in the United States that can spin yarn, weave cloth, and finish fabric. The wool originates with U.S. sheep producers and has been scoured and processed for textile manufacturing. Its varied colors record both naturally colored and dyed fibers, preserving visible traces of the material\u2019s previous industrial life.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"652\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_1.jpg\" alt=\"Photograph of sheep\" class=\"wp-image-1372\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_1.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_1-300x196.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_1-767x500.jpg 767w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Millpost, Southern Tablelands of New South Wales, Australia. Image courtesy of The Woolmark Company<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"652\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_2.jpg\" alt=\"Photograph of weaving equipment\" class=\"wp-image-1375\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_2.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_2-300x196.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_2-767x500.jpg 767w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">American Woolen Company, Stafford Springs,Connecticut, U.S.A. Image courtesy of Avantika Velho<\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1-819x1024.jpg\" alt=\"U.S. map of textile mills and paper mills\" class=\"wp-image-1402\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1-819x1024.jpg 819w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1-240x300.jpg 240w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1-768x960.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1-1229x1536.jpg 1229w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board1.jpg 1500w\" sizes=\"auto, (max-width: 819px) 100vw, 819px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-medium-font-size\">New Chemistry<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Rebuilding waste wool\u2019s industrial ecology begins by reconfiguring the molecular structure of its keratin-rich fibers into a biocomposite in which wool serves as both reinforcement and binder. Chemical, mechanical, and thermal inputs partially disassemble and reorganize the fiber\u2019s existing structure, producing a new material state from the same biological feedstock. These inputs do not simply preserve the fiber in another form; they establish a new configuration suited to architectural performance. Upcycling, therefore, means more than reuse. It is the controlled reorganization of an undervalued material into a higher-quality, longer-lived configuration using the chemical potential already present within its biological structure. We call this configurational stewardship.<br><br>The alkaline treatment disrupts the keratin structure, hydrolyzing peptide bonds and degrading disulfide cross-links to produce smaller keratin fragments. Mechanical homogenization further separates the material, exposing cortical cells and producing a keratin-rich aqueous dispersion.<sup>9<\/sup> The addition of citric acid promotes a second transformation. Acting as a comparatively benign crosslinker, it forms covalent linkages among reactive groups in the keratin chains.<sup>10<\/sup> When the wool-derived keratin and citric acid are heated together, they form a continuous polymeric matrix capable of binding residual and unprocessed wool fibers into a rigid composite without a petrochemical resin.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"652\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_3.jpg\" alt=\"Photograph of gel substance in laboratory setting\" class=\"wp-image-1382\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_3.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_3-300x196.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_3-767x500.jpg 767w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Keratin-rich gel<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM1-1024x689.png\" alt=\"\" class=\"wp-image-1383\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM1-1024x689.png 1024w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM1-300x202.png 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM1-767x516.png 767w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM1.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Scanning electron microscopy (SEM) images of wool at different stages of processing. Scoured, unprocessed wool fiber<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM2-1024x689.png\" alt=\"\" class=\"wp-image-1384\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM2-1024x689.png 1024w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM2-300x202.png 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM2-767x516.png 767w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM2.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Wool fiber after 24h alkaline treatment<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM3-1024x689.png\" alt=\"\" class=\"wp-image-1385\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM3-1024x689.png 1024w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM3-300x202.png 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM3-767x516.png 767w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM3.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Keratin-rich gel<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM4-1024x689.png\" alt=\"\" class=\"wp-image-1386\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM4-1024x689.png 1024w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM4-300x202.png 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM4-767x516.png 767w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/Figures_Revisions_FF_SEM4.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Keratin biopolymer film<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-medium-font-size\">Wool Mills to Paper Mills<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Laboratory material science operates in grams and centimeters. Architecture operates in kilograms, tonnes, square meters, and, ultimately, millions of buildings. Scaling requires more than enlarging a recipe. It requires coordinating the machinery, labor, logistics, energy systems, and regional industries needed to process heterogeneous biological materials reliably and economically.<br><br>Laboratory-scale development by the Grinham Research Group at the Harvard Graduate School of Design in collaboration with the Aizenberg Group at the Harvard John A. Paulson School of Engineering and Applied Sciences first characterized the structure\u2013property relationships of the wool biocomposite.<br><br>The work presented at the Oslo Architecture Triennale translates this chemistry into a new industrial ecology by connecting wool processing with another mature but contracting fiber industry: pulp and paper. Working with the Pulp and Paper Pilot Plant at North Carolina State University, the team demonstrated that equipment and methods developed for one fiber system could be redirected toward another. Industrial pulping machinery provides the high-volume agitation and homogenization needed to combine alkaline treatment with mechanical fiber refinement. Equipment designed for screening, dewatering, pressing, and kiln-drying fibrous slurries offers additional pathways for scaling architectural material production. The team consequently transferred a process once measured in hundreds of grams to a pilot-scale demonstration at the scale of hundreds of kilograms.<br><br>The proposition is not simply to construct a larger, specialized machine for wool. It is to co-locate and reconnect existing industrial capabilities that have become economically and geographically disconnected. Sheep producers provide a renewable biological feedstock. Scouring and textile operations aggregate, clean, grade, and preprocess the wool. Pulp and paper facilities contribute high-volume fiber-processing machinery and expertise. Panel manufacturers contribute to forming, pressing, drying, and finishing technologies. Architecture becomes the meeting point where these disconnected systems are brought back into a productive relationship.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_4.jpg\" alt=\"Photograph of pulp and paper plant\" class=\"wp-image-1388\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_4.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_4-300x225.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_4-768x576.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Pulp and Paper Pilot Plant, North Carolina State University, Raleigh, North Carolina, U.S.A.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_5.jpg\" alt=\"Photograph of hydrolyzed wool\" class=\"wp-image-1394\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_5.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_5-300x225.jpg 300w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_5-768x576.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Hydrolyzed wool drained from pulper at Pulp and Paper Pilot Plant, North Carolina State University, Raleigh, North Carolina, U.S.A<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2-819x1024.jpg\" alt=\"Map of Northeast U.S.\" class=\"wp-image-1403\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2-819x1024.jpg 819w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2-240x300.jpg 240w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2-768x960.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2-1229x1536.jpg 1229w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board2.jpg 1500w\" sizes=\"auto, (max-width: 819px) 100vw, 819px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-medium-font-size\">Fiber to Buildings<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Building-envelope materials can perform several functions simultaneously. An exterior retrofit system operates as an environmental interface, mediating moisture, heat, mechanical loads, weathering, and carbon flows while remaining manufacturable at an architectural scale. These combined requirements shifted the research away from a single ideal formulation and toward a family of related wool biocomposites.<br><br>Processing variables\u2014including fiber refinement, keratin content, citric acid concentration, pressure, and temperature\u2014can be adjusted to produce substantially different material behaviors. High-density formulations prioritize stiffness and moisture resistance, achieving performance comparable to or better than that of wood products: a flexural modulus of 1,906 \u00b1 194 MPa and water absorption of 24 \u00b1 2.1 percent after 24 hours.9 Low-density formulations omit the final heat-pressing stage, retaining more insulating air within the fiber network and achieving a thermal conductivity of 0.045 \u00b1 0.015 W\u00b7m-\u00b9\u00b7K-\u00b9, comparable to expanded polystyrene insulation.<sup>9<\/sup><br><br>The exhibition structure, nicknamed The Stock Tank, gives physical expression to this material family as a prototype for a retrofittable insulation-and-cladding assembly. Ninety low-density panels form the thermal and acoustic layer, while ninety high-density panels create the exterior cladding surface. Fluting gives the rigid panels additional depth and stiffness while recalling the folded garments that Vitruvius associated with the Ionic column. The open rear of the installation allows visitors to enter the enclosure and experience the sudden attenuation of ambient sound produced by the low-density wool composite.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1046\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_6.jpg\" alt=\"Photograph of wool panels\" class=\"wp-image-1397\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_6.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_6-287x300.jpg 287w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_6-979x1024.jpg 979w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_6-768x803.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Retrofittable insulating-and-cladding assembly<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1046\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_7.jpg\" alt=\"Photograph of wool panel installation\" class=\"wp-image-1398\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_7.jpg 1000w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_7-287x300.jpg 287w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_7-768x803.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_7-979x1024.jpg 979w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">The Stock Tank<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"760\" height=\"1024\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_9-760x1024.jpg\" alt=\"\" class=\"wp-image-1414\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_9-760x1024.jpg 760w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_9-223x300.jpg 223w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_9-768x1034.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_9.jpg 1000w\" sizes=\"auto, (max-width: 760px) 100vw, 760px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Interior of the Stock Tank<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4-819x1024.jpg\" alt=\"Diagram of exterior wool cladding system\" class=\"wp-image-1407\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4-819x1024.jpg 819w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4-240x300.jpg 240w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4-768x960.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4-1229x1536.jpg 1229w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board4.jpg 1500w\" sizes=\"auto, (max-width: 819px) 100vw, 819px\" \/><\/figure>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Wool cladding system for exterior retrofits<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-medium-font-size\">Carbon<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">The environmental value of wool cannot be understood through a single carbon number. It depends on how sheep ranching, wool production, waste allocation, land management, biogenic carbon, and product longevity are defined within the life-cycle system boundary. When wool is treated as a primary industrial agricultural product, a portion of the impacts associated with sheep production\u2014including enteric methane and feed production\u2014is allocated to the fiber. Under this accounting method, agricultural emissions can dominate wool\u2019s life-cycle carbon profile. When discarded or pre-consumer wool is treated as a residual material with little or no economic value, a smaller share of those upstream impacts may be assigned to the new product. Neither approach changes the material itself; each describes a different accounting relationship between wool and the industrial agriculture system that produced it.<br><br>Land-based ecologies provide a richer dimension for understanding wool as a state of transformation within the carbon cycle. Regenerative grazing practices can improve soil health, vegetation cover, water retention, biodiversity, and, under appropriate conditions, soil-carbon storage. These benefits are highly dependent on climate, soil type, stocking density, previous land use, and management duration. Wool fiber is approximately 50 percent carbon by mass.<sup>11, 12<\/sup> Plants first fix this carbon from the atmosphere through photosynthesis; grazing then transfers a portion of it into the keratin produced by the sheep. Retaining this biogenic carbon in a durable building product delays its return to the atmosphere for the service life of the assembly. In the project\u2019s life-cycle assessment, manufacturing the upcycled panel produced approximately 0.42 kg CO\u2082eq per kg of material. When stored biogenic carbon was reported separately, the resulting balance was approximately \u22121.41 kg CO\u2082eq per kg of material.<sup>9<\/sup> A land-based understanding provides a more pluralistic account of carbon\u2014one that recognizes storage across multiple, interconnected systems rather than reducing environmental value to a single product-level balance. Under appropriate grazing and conservation practices, sheep can participate in carbon cycles that increase soil-carbon storage. One cited study reported net soil-carbon storage of approximately 0.33 tons CO\u2082eq per hectare per year.<sup>13<\/sup><\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3-819x1024.jpg\" alt=\"Diagram of carbon footprint comparison between wool panel and EIFS\" class=\"wp-image-1406\" srcset=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3-819x1024.jpg 819w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3-240x300.jpg 240w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3-768x960.jpg 768w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3-1229x1536.jpg 1229w, https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_Board3.jpg 1500w\" sizes=\"auto, (max-width: 819px) 100vw, 819px\" \/><\/figure>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:300\">Comparative LCA between exterior wool cladding system (left) and EIFS (right)<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-medium-font-size\">References<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\"><strong>[1]<\/strong> Abbott, M., Merrett, D. (2019). \u201cCounting the cost: the reserve price scheme for wool 1970\u20132001.\u201d Australian Journal of Agricultural and Resource Economics. <strong>[2]<\/strong> International Wool Textile Organisation (IWTO) (2024). Wool Supply Chain and Market Information. <strong>[3]<\/strong> Gowane, G.R., Gadekar, Y.P., Prakash, V., Kadam, V., Chopra, A., Prince, L.L.L. (2017). Climate change impact on sheep production: growth, milk, wool, and meat. In: Sheep Production Adapting to Climate Change. <strong>[4]<\/strong> Rajabinejad, H., Buciscanu, I.-I., Maier, S.S. (2019). Current approaches for raw wool waste management and unconventional valorization: a review. Environ. Eng. Manag. J. <strong>[5]<\/strong> Parlato, M.C.M., Porto, S.M.C., Valenti, F. (2022). \u201cAssessment of sheep wool waste as new resource for green building elements.\u201d Building and Environment. <strong>[6]<\/strong> Senthilkumar, N., Chowdhury, S., Sanpui, P. (2023). Extraction of keratin from keratinous wastes: current status and future directions. J. Mater. Cycles Waste Manag. <strong>[7]<\/strong> Giteru, S.G. et al. (2023). \u201cWool keratin as a novel alternative protein: A comprehensive review of extraction, purification, nutrition, safety, and food applications.\u201d Comprehensive Reviews in Food Science and Food Safety. <strong>[8]<\/strong> Zach, J., Korjenic, A., Petr\u00b4anek, V., Hroudov\u00b4a, J., Bednar, T. (2012). Performance evaluation and research of alternative thermal insulations based on sheep wool. Energy Build. <strong>[9]<\/strong> Palmer, L., Oloruntobo, D., Alvarenga, J., Grinham, J. (2026). \u201cUpcycling waste wool for regenerative building retrofits: A biocomposite approach.\u201d Resources, Conservation &amp; Recycling. <strong>[10]<\/strong> Dudeja, I. et al. (2023). \u201cCitric acid: An ecofriendly cross-linker for the production of functional biopolymeric materials.\u201d Sustainable Chemistry and Pharmacy. <strong>[11]<\/strong> Blignaut, James, Paul Swan, and Lemuel Blignaut. (2026). \u201cA Biogenic Life Cycle Approach towards Estimating the Carbon Intensity of Wool Production: Evidence from Six Australian Case Studies.\u201d Agricultural Systems.<strong> [12]<\/strong> International Wool Textile Organization. (2026). \u201cThe Green Book: Building Wool\u2019s Environmental Story | IWTO.\u201d <strong>[13]<\/strong> Valliere, Samuel W., David E. Prado-Tarango, Jennifer M. Moore, Serkan Ates, and Ricardo Mata-Gonz\u00e1lez. (2026). \u201cConservation Management on an Oregon Livestock Ranch Supports Net Soil Carbon and Nitrogen Storage.\u201d Agriculture, Ecosystems &amp; Environment. <strong>[14]<\/strong> Fibershed, \u201cNational Mill Inventory: An Exploratory Representation of US Fiber Processing.\u201d 2016. <strong>[15]<\/strong> U.S. Department of Agriculture, National Agricultural Statistics Service. (2024). 2022 Census of agriculture: United States summary and state data. <strong>[16]<\/strong>ArcGIS StoryMaps. \u201cDiscover US Sheep &amp; Wool Trends\u201d(2026). <strong>[17]<\/strong> Phillips, Richard B. (2026) \u201cGlobal Dynamics of the Pulp and Paper Industry &#8211; 2026,\u201d North Carolina State University Department of Forest Biomaterials. <strong>[18]<\/strong> U.S. Environmental Protection Agency. (2025). TRI basic data files: 2024 national data file.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-medium-font-size\">Sponsors<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Harvard University Office of the Vice Provost for Research<br>Autodesk Research<br>Harvard University Salata Institute for Climate Change and Sustainability<br>Harvard Center for Green Buildings and Cities<br>Harvard Graduate School of Design<br>American Woolen Company<br>Textile Waste Supply Company<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-medium-font-size\">Collaborators<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"alignwide has-small-font-size wp-block-paragraph\" style=\"font-style:normal;font-weight:400\">Joanna Aizenberg and the Aizenberg Lab, Harvard John A. Paulson School of Engineering and Applied Sciences<br>American Wool Council<br>The Woolmark Company<br>Draper Knitting Company<br>R.H. Lindsay Company<br>Dr. Richard A. Venditti, Professor, North Carolina State University, Department of Forest Biomaterials<br>Connor Geraghty, North Carolina State University, Department of Forest Biomaterials<br>Thomas Schroeder, Assistant Professor, North Carolina State University, Wilson College of Textiles<br>Lee McDonald, Tools for Paper<br>Nicky Rhodes, Harvard Graduate School of Design<br>Donald Oloruntobo, Harvard Graduate School of Design<br>Mia Montrose, Harvard College<br>Burton LeGeyt, Harvard Graduate School of Design<br>Stephen Spodaryk, Harvard Graduate School of Design<br>Rachel Vroman, Harvard Graduate School of Design<br>Gustov Fagerstrom, Walter P. Moore<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grinham Research Group Harvard University Graduate School of Design Upscaling Wool Ecologies Reconfiguring wool&#8217;s industrial ecology The Stock Tank exhibited [&hellip;]<\/p>\n","protected":false},"author":176,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1325","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.10 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Upscaling Wool Ecologies - Grinham Research Group<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Upscaling Wool Ecologies\" \/>\n<meta property=\"og:description\" content=\"Grinham Research Group Harvard University Graduate School of Design Upscaling Wool Ecologies Reconfiguring wool&#8217;s industrial ecology The Stock Tank exhibited [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/research.gsd.harvard.edu\/grg\/upscaling-wool-ecologies\/\" \/>\n<meta property=\"og:site_name\" content=\"Grinham Research Group\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-30T22:55:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/research.gsd.harvard.edu\/grg\/files\/2026\/09\/UpscalingWool_8-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"652\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"14 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/research.gsd.harvard.edu\\\/grg\\\/upscaling-wool-ecologies\\\/\",\"url\":\"https:\\\/\\\/research.gsd.harvard.edu\\\/grg\\\/upscaling-wool-ecologies\\\/\",\"name\":\"Upscaling Wool Ecologies - 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