{"id":263,"date":"2015-11-08T15:05:23","date_gmt":"2015-11-08T15:05:23","guid":{"rendered":"http:\/\/www.seed.abc.polimi.it\/?p=263"},"modified":"2015-11-16T11:02:38","modified_gmt":"2015-11-16T11:02:38","slug":"a-robust-estimation-of-aged-solar-reflectance-astm-d-7897-15","status":"publish","type":"post","link":"https:\/\/www.seed.abc.polimi.it\/?p=263","title":{"rendered":"A robust estimation of aged solar reflectance? ASTM D 7897-15"},"content":{"rendered":"<a href=\"https:\/\/www.seed.abc.polimi.it\/wp-content\/uploads\/2015\/11\/weathering_soiling_seed.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-268\" src=\"https:\/\/www.seed.abc.polimi.it\/wp-content\/uploads\/2015\/11\/weathering_soiling_seed-300x208.jpg\" alt=\"weathering_soiling_seed\" width=\"300\" height=\"208\" srcset=\"https:\/\/www.seed.abc.polimi.it\/wp-content\/uploads\/2015\/11\/weathering_soiling_seed-300x208.jpg 300w, https:\/\/www.seed.abc.polimi.it\/wp-content\/uploads\/2015\/11\/weathering_soiling_seed-1024x710.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>\n<p>For\u00a0building energy simulations, micro- and meso- climate modelling, environmental\u00a0rating schemes, structural applications, etc. everybody needs a sound value for the aged optical-radiative properties of built surfaces. Product development needs it too.<\/p>\n<p>Getting the answer from natural ageing might take years&#8230; so what? One may get a reliable and sound estimate with the accelerated weathering and soiling procedure given in <a href=\"http:\/\/www.astm.org\/Standards\/D7897.htm\">ASTM D 7897-15<\/a> &#8211;\u00a0Standard Practice for Laboratory Soiling and Weathering of Roofing Materials to Simulate Effects of Natural Exposure on Solar Reflectance and Thermal Emittance.<\/p>\n<p>Here&#8217;s the Interalboratory study we joined that allowed to test the repeatability and reproducibility of the test method.<\/p>\n<p>Sleiman, M., Chen, S., Gilbert, H.E., Kirchstetter, T.W., Berdahl, P., Bruckman, L.S., Cremona, D., French, R.H., Gordon, D.A., Emiliani, M., Herrera, E., Kable, J., Ma, L., Martarelli, M., Paolini, R., Prestia, M., Renowden, J., Revel, G.M., Rosseler, O., Shiao, M., Terraneo, G., Yang, T., Yu, L., Zinzi, M., Akbari, H., Levinson, R., Destaillats, H., 2015. <strong>Soiling of building envelope surfaces and its effect on solar reflectance \u2013 Part III: Interlaboratory study of an accelerated aging method for roofing materials<\/strong>. <em>Sol. Energy Mater. Sol. Cells<\/em> 143, 581\u2013590. <a href=\"http:\/\/dx.doi.org\/10.1016\/j.solmat.2015.07.031\">http:\/\/dx.doi.org\/10.1016\/j.solmat.2015.07.031<\/a>.\u00a0Free access till Dec 2015 <a href=\"http:\/\/authors.elsevier.com\/a\/1RvzL3In-8ozWq\">http:\/\/authors.elsevier.com\/a\/1RvzL3In-8ozWq<\/a><\/p>\n<p>Now the test method is validated for roofing materials. We&#8217;re working on a version that will allow to reproduce\u00a0soiling and weathering also for fa\u00e7ade materials, calibrated on European urban areas.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For\u00a0building energy simulations, micro- and meso- climate modelling, environmental\u00a0rating schemes, structural applications, etc. everybody needs a sound value for the aged optical-radiative properties of built surfaces. Product development needs it too. Getting the answer from natural ageing might take years&#8230; so what? One may get a reliable and sound estimate with the accelerated weathering and&#8230;  <a class=\"excerpt-read-more\" href=\"https:\/\/www.seed.abc.polimi.it\/?p=263\" title=\"Read A robust estimation of aged solar reflectance? ASTM D 7897-15\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":268,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/posts\/263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=263"}],"version-history":[{"count":8,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/posts\/263\/revisions"}],"predecessor-version":[{"id":279,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/posts\/263\/revisions\/279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=\/wp\/v2\/media\/268"}],"wp:attachment":[{"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.seed.abc.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}