{"id":3306,"date":"2026-10-20T08:00:00","date_gmt":"2026-10-20T08:00:00","guid":{"rendered":"https:\/\/biomattone.it\/?p=3306"},"modified":"2026-10-20T15:26:49","modified_gmt":"2026-10-20T15:26:49","slug":"trasmittanza-del-biomattone-come-leggere-u-e-rt-per-ogni-formato","status":"publish","type":"post","link":"https:\/\/biomattone.it\/pt\/trasmittanza-del-biomattone-come-leggere-u-e-rt-per-ogni-formato\/","title":{"rendered":"Transmit\u00e2ncia do Biomattone\u00ae: como ler U e Rt de cada formato"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A transmit\u00e2ncia do Biomattone mede quanto calor passa atrav\u00e9s da parede e diminui com a espessura: de U 0,5 W\/m\u00b2K no BA8 a U 0,09 W\/m\u00b2K no BA50. A resist\u00eancia t\u00e9rmica Rt, por sua vez, aumenta de 1,99 a 11,53 m\u00b2K\/W.<\/p><h2 class=\"wp-block-heading\">Em resumo<\/h2><ul class=\"wp-block-list\"><li>Transmit\u00e2ncia U: quanto calor passa; quanto mais baixa, melhor o isolamento.<\/li><li>Resist\u00eancia t\u00e9rmica Rt: quanto a parede se op\u00f5e \u00e0 passagem do calor.<\/li><li>Valores: U de 0,5 a 0,09 W\/m\u00b2K; Rt de 1,99 a 11,53 m\u00b2K\/W.<\/li><li>Material: condutividade t\u00e9rmica de 0,044 W\/mK.<\/li><li>Fonte: ficha t\u00e9cnica Biomattone\u00ae NOV25.<\/li><\/ul><p class=\"wp-block-paragraph\"><em>Atualizado em 5 de outubro de 2026. Fonte dos dados: ficha t\u00e9cnica Biomattone\u00ae NOV25.<\/em><\/p><h2 class=\"wp-block-heading\">Neste artigo<\/h2><ul class=\"wp-block-list\"><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#cos-e\">O que s\u00e3o transmit\u00e2ncia e resist\u00eancia t\u00e9rmica<\/a><\/li><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#formati\">A transmit\u00e2ncia do Biomattone por formato<\/a><\/li><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#leggere\">Como ler os valores da ficha<\/a><\/li><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#progetto\">Transmit\u00e2ncia e projeto<\/a><\/li><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#territorio\">Transmit\u00e2ncia do Biomattone em Brescia e em Bolzano<\/a><\/li><li><a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"#faq\">Perguntas frequentes sobre a transmit\u00e2ncia<\/a><\/li><\/ul><h2 class=\"wp-block-heading\" id=\"cos-e\">O que s\u00e3o transmit\u00e2ncia e resist\u00eancia t\u00e9rmica<\/h2><p class=\"wp-block-paragraph\">U indica quanta pot\u00eancia passa por cada metro quadrado de parede e \u00e9 medida em W\/m\u00b2K. Um valor baixo significa um isolamento melhor.<\/p><p class=\"wp-block-paragraph\">Rt mede quanto a parede se op\u00f5e \u00e0 passagem do calor e \u00e9 medida em m\u00b2K\/W. Os dois valores est\u00e3o relacionados: U \u00e9 aproximadamente o inverso de Rt.<\/p><h2 class=\"wp-block-heading\" id=\"formati\">A transmit\u00e2ncia do Biomattone por formato<\/h2><p class=\"wp-block-paragraph\">Na ficha t\u00e9cnica, voc\u00ea encontra U e Rt para cada formato. Por exemplo, o BA30 tem U de 0,14 W\/m\u00b2K e Rt de 6,99 m\u00b2K\/W.<\/p><figure class=\"wp-block-table\"><table><thead><tr><th>Formato<\/th><th>Espessura (cm)<\/th><th>U (W\/m\u00b2K)<\/th><th>Rt (m\u00b2K\/W)<\/th><\/tr><\/thead><tbody><tr><td>BA8<\/td><td>8<\/td><td>0,5<\/td><td>1,99<\/td><\/tr><tr><td>BA12<\/td><td>12<\/td><td>0,34<\/td><td>2,9<\/td><\/tr><tr><td>BA20<\/td><td>20<\/td><td>0,21<\/td><td>4,71<\/td><\/tr><tr><td>BA25<\/td><td>25<\/td><td>0,17<\/td><td>5,85<\/td><\/tr><tr><td>BA30<\/td><td>30<\/td><td>0,14<\/td><td>6,99<\/td><\/tr><tr><td>BA36<\/td><td>36<\/td><td>0,12<\/td><td>8,35<\/td><\/tr><tr><td>BA40<\/td><td>40<\/td><td>0,11<\/td><td>9,01<\/td><\/tr><tr><td>BA50<\/td><td>50<\/td><td>0,09<\/td><td>11,53<\/td><\/tr><\/tbody><\/table><\/figure><p class=\"wp-block-paragraph\">A transmit\u00e2ncia melhora a cada salto de formato: a U do BA50 \u00e9 mais de cinco vezes inferior \u00e0 do BA8.<\/p><h2 class=\"wp-block-heading\" id=\"leggere\">Como ler os valores da ficha<\/h2><p class=\"wp-block-paragraph\">Para ler a ficha, comece pela U do formato, depois confira a Rt e, por fim, verifique a qual estratigrafia os valores se referem.<\/p><ul class=\"wp-block-list\"><li>o formato e a espessura do bloco;<\/li><li>o eventual reboco e os acabamentos;<\/li><li>a fonte e a data do dado.<\/li><\/ul><p class=\"wp-block-paragraph\">A transmit\u00e2ncia, por\u00e9m, n\u00e3o basta: conta tamb\u00e9m o <a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"https:\/\/biomattone.it\/pt\/sfasamento-termico-del-biomattone-valori-per-ogni-formato\/\">atraso t\u00e9rmico do Biomattone<\/a>, que mede o retardo do calor.<\/p><h2 class=\"wp-block-heading\" id=\"progetto\">Transmit\u00e2ncia e projeto<\/h2><p class=\"wp-block-paragraph\">Os limites legais dependem da zona clim\u00e1tica e do tipo de interven\u00e7\u00e3o, por isso quem os verifica \u00e9 o projetista. O formato certo tamb\u00e9m depende da estratigrafia completa.<\/p><h2 class=\"wp-block-heading\" id=\"territorio\">Transmit\u00e2ncia do Biomattone em Brescia e em Bolzano<\/h2><p class=\"wp-block-paragraph\">Em Bolzano, voc\u00ea encontra o <a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"https:\/\/biomattone.it\/pt\/biomattone-em-bolzano-prestazioni-termiche-per-climi-rigidi\/\">desempenho para climas rigorosos<\/a>, com U de 0,09 W\/m\u00b2K para o BA50. Em Brescia, por sua vez, h\u00e1 <a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"https:\/\/biomattone.it\/pt\/biomattone-em-brescia-formatos-precos-e-dados-tecnicos\/\">formatos, pre\u00e7os e dados t\u00e9cnicos<\/a>.<\/p><p class=\"wp-block-paragraph\">Os conceitos b\u00e1sicos do produto est\u00e3o no guia <a style=\"color:#9e5931;text-decoration:underline;font-weight:600;\" href=\"https:\/\/biomattone.it\/pt\/cose-il-biomattone-composizione-formati-e-come-funziona\/\">o que \u00e9 o Biomattone<\/a>.<\/p><h2 class=\"wp-block-heading\" id=\"faq\">Perguntas frequentes sobre a transmit\u00e2ncia<\/h2>\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1791548916473\"><strong class=\"schema-faq-question\">O que \u00e9 a transmit\u00e2ncia t\u00e9rmica?<\/strong> <p class=\"schema-faq-answer\">\u00c9 a quantidade de calor que atravessa um metro quadrado de parede, em W\/m\u00b2K. Um valor baixo indica um isolamento melhor.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791548916474\"><strong class=\"schema-faq-question\">Qual \u00e9 a transmit\u00e2ncia do Biomattone?<\/strong> <p class=\"schema-faq-answer\">Depende do formato: de 0,5 W\/m\u00b2K no BA8 a 0,09 W\/m\u00b2K no BA50. Diminui com a espessura.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791548916475\"><strong class=\"schema-faq-question\">Qual \u00e9 a diferen\u00e7a entre U e Rt?<\/strong> <p class=\"schema-faq-answer\">A Rt mede quanto a parede se op\u00f5e ao calor; a U \u00e9 aproximadamente o seu inverso. Quanto mais alta a Rt, mais baixa a U.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791548916476\"><strong class=\"schema-faq-question\">Qual formato tem a transmit\u00e2ncia mais baixa?<\/strong> <p class=\"schema-faq-answer\">O BA50, com U de 0,09 W\/m\u00b2K e Rt de 11,53 m\u00b2K\/W. \u00c9 tamb\u00e9m o formato mais espesso, com 50 cm.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791548916477\"><strong class=\"schema-faq-question\">A transmit\u00e2ncia basta para escolher o formato?<\/strong> <p class=\"schema-faq-answer\">N\u00e3o. Conta tamb\u00e9m o atraso t\u00e9rmico, junto com o espa\u00e7o, a estratigrafia e a zona clim\u00e1tica. \u00c9 preciso avaliar o projeto completo.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Transmit\u00e2ncia do Biomattone\u00ae: U de 0,5 a 0,09 W\/m\u00b2K e Rt de 1,99 a 11,53 m\u00b2K\/W. Tabela por formato e guia de leitura dos valores.<\/p>\n","protected":false},"author":2,"featured_media":3127,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69],"tags":[65,64],"class_list":["post-3306","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-desempenho-e-dados-tecnicos","tag-bolzano","tag-brescia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transmit\u00e2ncia do Biomattone: como ler U e Rt por formato<\/title>\n<meta name=\"description\" content=\"Transmit\u00e2ncia do Biomattone de 0,5 a 0,09 W\/m\u00b2K: tabela de U e Rt para cada formato do BA8 ao BA50 e como ler os valores da ficha.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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t\u00e9rmica?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u00c9 a quantidade de calor que atravessa um metro quadrado de parede, em W\\\/m\u00b2K. Um valor baixo indica um isolamento melhor.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/biomattone.it\\\/pt\\\/trasmittanza-del-biomattone-come-leggere-u-e-rt-per-ogni-formato\\\/#faq-question-1791548916474\",\"position\":2,\"url\":\"https:\\\/\\\/biomattone.it\\\/pt\\\/trasmittanza-del-biomattone-come-leggere-u-e-rt-per-ogni-formato\\\/#faq-question-1791548916474\",\"name\":\"Qual \u00e9 a transmit\u00e2ncia do Biomattone?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Depende do formato: de 0,5 W\\\/m\u00b2K no BA8 a 0,09 W\\\/m\u00b2K no BA50. 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