{"id":204,"date":"2026-05-27T03:02:01","date_gmt":"2026-05-27T03:02:01","guid":{"rendered":"https:\/\/www.wire-meshes.net\/?post_type=wire-mesh&p=204"},"modified":"2026-05-29T08:04:01","modified_gmt":"2026-05-29T08:04:01","slug":"noise-barrier","status":"publish","type":"wire-mesh","link":"https:\/\/www.wire-meshes.net\/pt\/wire-mesh\/noise-barrier\/","title":{"rendered":"Barreira ac\u00fastica"},"content":{"rendered":"

A Barreira Ac\u00fastica \u00e9 um sistema de veda\u00e7\u00e3o ac\u00fastica para exteriores destinado a autoestradas, vias f\u00e9rreas, limites de zonas residenciais, f\u00e1bricas, pontes e per\u00edmetros de obras. \u00c9 composta por pain\u00e9is ac\u00fasticos de metal perfurado, material fonoabsorvente no interior e postes em H de a\u00e7o. O lado perfurado fica virado para a fonte de ru\u00eddo; a chapa traseira s\u00f3lida bloqueia o som transmitido pelo ar. As espessuras comuns dos pain\u00e9is s\u00e3o 80 mm, 100 mm e 120 mm. Os m\u00f3dulos de painel padr\u00e3o t\u00eam 500 mm de altura, com comprimentos de 2000 mm ou 2500 mm. As alturas totais t\u00edpicas da barreira variam entre 2 m e 5 m, concebidas de acordo com a disposi\u00e7\u00e3o do local, a altura da fonte de ru\u00eddo e os requisitos do projeto.<\/p>\n\n\n\n

Especifica\u00e7\u00f5es<\/h3>\n\n\n\n

Nomes dos produtos:<\/strong> Barreira ac\u00fastica, barreira de ru\u00eddo, barreira ac\u00fastica para autoestradas, barreira ac\u00fastica para vias f\u00e9rreas.<\/p>\n\n\n\n

Material do painel:<\/strong> A\u00e7o carbono, alum\u00ednio ou a\u00e7o inoxid\u00e1vel (o a\u00e7o carbono e o alum\u00ednio s\u00e3o os materiais padr\u00e3o em projetos rodovi\u00e1rios e ferrovi\u00e1rios).<\/p>\n\n\n\n

Dimens\u00f5es do painel:<\/strong> 500 mm (A) \u00d7 2000 mm (C), 500 mm (A) \u00d7 2500 mm (C).<\/p>\n\n\n\n

Altura total da barreira:<\/strong> 2 m \u2013 5 m (conforme avalia\u00e7\u00e3o de ru\u00eddo e planta do local).<\/p>\n\n\n\n

Espessura do painel:<\/strong> 80 mm, 100 mm, 120 mm.<\/p>\n\n\n\n

Espessura da chapa met\u00e1lica:<\/strong> 0,7 mm \u2013 1,2 mm.<\/p>\n\n\n\n

Dimens\u00f5es do poste H:<\/strong> Perfil em H de a\u00e7o com dimens\u00f5es de 100 \u00d7 100 mm, 125 \u00d7 125 mm e 150 \u00d7 150 mm.<\/p>\n\n\n\n

Constru\u00e7\u00e3o do painel:<\/strong> Face frontal perfurada, enchimento ac\u00fastico, face traseira s\u00f3lida.<\/p>\n\n\n\n

Lado perfurado:<\/strong> Exposto a fontes de ru\u00eddo (tr\u00e1fego, comboios, maquinaria).<\/p>\n\n\n\n

Preenchimento ac\u00fastico:<\/strong> L\u00e3 de rocha hidrof\u00f3bica ou l\u00e3 de vidro centrifugada.<\/p>\n\n\n\n

Coeficiente de Redu\u00e7\u00e3o de Ru\u00eddo (NRC):<\/strong> \u2265 0,70; normalmente entre 0,80 e 0,95.<\/p>\n\n\n\n

Isolamento ac\u00fastico (Rw):<\/strong> \u2265 25 dB; padr\u00e3o \u2265 29 dB.<\/p>\n\n\n\n

Tratamento de superf\u00edcies:<\/strong> Galvanizado por imers\u00e3o a quente + revestimento em p\u00f3 para uso exterior (a\u00e7o ao carbono); revestimento em p\u00f3 (alum\u00ednio).<\/p>\n\n\n\n

Cores:<\/strong> Verde, cinzento, azul, branco, preto ou RAL personalizado.<\/p>\n\n\n\n

Instala\u00e7\u00e3o:<\/strong> Pain\u00e9is inseridos entre os postes em H, fixados com parafusos, fitas de veda\u00e7\u00e3o e elementos de fixa\u00e7\u00e3o.<\/p>\n\n\n\n

Candidatura<\/h3>\n\n\n\n

Controlo do ru\u00eddo nas autoestradas e nas vias urbanas<\/strong><\/p>\n\n\n\n

\n
\"Barreira<\/a>
Barreira ac\u00fastica met\u00e1lica com 2 m de altura, painel perfurado<\/figcaption><\/figure>\n\n\n\n
\"Barreira<\/a>
Barreira ac\u00fastica verde transparente para autoestradas<\/figcaption><\/figure>\n\n\n\n
\"Barreira<\/a>
Barreira ac\u00fastica de metal perfurado com 4 m de altura<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

Instalados ao longo de autoestradas, vias r\u00e1pidas, viadutos e art\u00e9rias urbanas. Os pain\u00e9is com 100 mm de espessura s\u00e3o a norma para as sec\u00e7\u00f5es \u00e0 beira da estrada.<\/p>\n\n\n\n

Barreira ac\u00fastica para caminhos-de-ferro e metro<\/strong><\/p>\n\n\n\n

Utilizado junto a vias f\u00e9rreas, linhas de metro, esta\u00e7\u00f5es e dep\u00f3sitos. A dimens\u00e3o do poste em H corresponde \u00e0 altura e \u00e0 carga de vento.<\/p>\n\n\n\n

Limites residenciais e comunit\u00e1rios<\/strong><\/p>\n\n\n\n

Localizadas entre estradas e zonas residenciais, escolas ou hospitais. A cor e a altura cumprem os requisitos urban\u00edsticos locais.<\/p>\n\n\n\n

Redu\u00e7\u00e3o do ru\u00eddo em f\u00e1bricas e equipamentos<\/strong><\/p>\n\n\n\n

Inclui geradores, compressores, torres de refrigera\u00e7\u00e3o e delimita\u00e7\u00f5es da oficina. A localiza\u00e7\u00e3o e a altura necess\u00e1ria devem ser confirmadas antes da elabora\u00e7\u00e3o do or\u00e7amento.<\/p>\n\n\n\n

Especifica\u00e7\u00f5es do produto em stock<\/h3>\n\n\n\n

Painel met\u00e1lico de barreira ac\u00fastica \u2013 500 mm \u00d7 2000 mm, 80 mm de espessura<\/strong><\/p>\n\n\n\n

Painel ac\u00fastico padr\u00e3o com 80 mm de espessura para controlo de ru\u00eddo rodovi\u00e1rio, ferrovi\u00e1rio e industrial. Frente perfurada, n\u00facleo fonoabsorvente, parte traseira s\u00f3lida.<\/p>\n\n\n\n

Especifica\u00e7\u00f5es t\u00e9cnicas<\/strong><\/p>\n\n\n\n

    \n
  • Dimens\u00f5es do painel:<\/strong> 500 mm (A) \u00d7 2000 mm (C)<\/li>\n\n\n\n
  • Espessura do painel:<\/strong> 80 mm<\/li>\n\n\n\n
  • Chapa met\u00e1lica:<\/strong> 0,7 mm \u2013 1,0 mm<\/li>\n\n\n\n
  • Material:<\/strong> A\u00e7o carbono macio ou alum\u00ednio<\/li>\n\n\n\n
  • Estrutura:<\/strong> Frente perfurada, enchimento ac\u00fastico, parte traseira maci\u00e7a<\/li>\n\n\n\n
  • NRC:<\/strong> \u2265 0,80<\/li>\n\n\n\n
  • Assunto:<\/strong> \u2265 29 dB<\/li>\n\n\n\n
  • Conclus\u00e3o:<\/strong> Galvanizado + com revestimento em p\u00f3<\/li>\n\n\n\n
  • Cor:<\/strong> Verde, cinzento, azul<\/li>\n<\/ul>\n\n\n\n

    Aplica\u00e7\u00f5es<\/strong><\/p>\n\n\n\n

    Estradas urbanas, limites de bairros, estaleiros de constru\u00e7\u00e3o.<\/p>\n\n\n\n

    \n\n\n\n

    Painel de barreira ac\u00fastica para autoestradas \u2013 500 mm \u00d7 2500 mm, 100 mm de espessura<\/strong><\/p>\n\n\n\n

    Painel ac\u00fastico para autoestradas com 100 mm de espessura e 2500 mm de comprimento, unidade modular padr\u00e3o para barreiras ac\u00fasticas \u00e0 beira da estrada.<\/p>\n\n\n\n

    Especifica\u00e7\u00f5es t\u00e9cnicas<\/strong><\/p>\n\n\n\n

      \n
    • Dimens\u00f5es do painel:<\/strong> 500 mm (A) \u00d7 2500 mm (C)<\/li>\n\n\n\n
    • Espessura do painel:<\/strong> 100 mm<\/li>\n\n\n\n
    • Chapa met\u00e1lica:<\/strong> 0,8 mm \u2013 1,2 mm<\/li>\n\n\n\n
    • Material:<\/strong> A\u00e7o carbono macio ou alum\u00ednio<\/li>\n\n\n\n
    • Frente:<\/strong> Perfurado (na dire\u00e7\u00e3o do tr\u00e2nsito)<\/li>\n\n\n\n
    • Voltar:<\/strong> S\u00f3lido<\/li>\n\n\n\n
    • Assunto:<\/strong> \u2265 29 dB<\/li>\n\n\n\n
    • H-Post:<\/strong> 125 \u00d7 125 mm<\/li>\n\n\n\n
    • Conclus\u00e3o:<\/strong> Galvanizado + com revestimento em p\u00f3<\/li>\n<\/ul>\n\n\n\n

      Aplica\u00e7\u00f5es<\/strong><\/p>\n\n\n\n

      Autoestradas, vias r\u00e1pidas, viadutos, fachadas residenciais junto \u00e0 estrada.<\/p>\n\n\n\n

      Nota:<\/strong> Para a instala\u00e7\u00e3o de pontes, verifique a carga de vento e a carga permanente.<\/p>\n\n\n\n

      \n\n\n\n

      Barreira ac\u00fastica ferrovi\u00e1ria \u2013 500 mm \u00d7 2000 mm, 120 mm de espessura<\/strong><\/p>\n\n\n\n

      Painel ac\u00fastico de alta resist\u00eancia com 120 mm de espessura para linhas ferrovi\u00e1rias, tro\u00e7os de metro e limites de zonas industriais com elevado n\u00edvel de ru\u00eddo.<\/p>\n\n\n\n

      Especifica\u00e7\u00f5es t\u00e9cnicas<\/strong><\/p>\n\n\n\n

        \n
      • Dimens\u00f5es do painel:<\/strong> 500 mm (A) \u00d7 2000 mm (C)<\/li>\n\n\n\n
      • Espessura do painel:<\/strong> 120 mm<\/li>\n\n\n\n
      • Chapa met\u00e1lica:<\/strong> 1,0 mm \u2013 1,2 mm<\/li>\n\n\n\n
      • Material:<\/strong> Alum\u00ednio ou a\u00e7o carbono macio<\/li>\n\n\n\n
      • Preenchimento:<\/strong> L\u00e3 de rocha hidrof\u00f3bica \/ l\u00e3 de vidro<\/li>\n\n\n\n
      • Rosto:<\/strong> Perfurado para reduzir o ru\u00eddo ferrovi\u00e1rio<\/li>\n\n\n\n
      • Voltar:<\/strong> S\u00f3lido<\/li>\n\n\n\n
      • H-Post:<\/strong> 125 \u00d7 125 mm \/ 150 \u00d7 150 mm<\/li>\n\n\n\n
      • Cor:<\/strong> Cinza, verde, azul, RAL personalizado<\/li>\n<\/ul>\n\n\n\n

        Aplica\u00e7\u00f5es<\/strong><\/p>\n\n\n\n

        Linhas ferrovi\u00e1rias, dep\u00f3sitos de metro, zonas de maquinaria pesada, per\u00edmetros de f\u00e1bricas.<\/p>\n\n\n\n

        \n\n\n\n

        Sistema de barreira ac\u00fastica residencial \u2013 3 m de altura, painel de 100 mm<\/strong><\/p>\n\n\n\n

        Sistema completo de barreira ac\u00fastica residencial com 3 m de altura, utilizando pain\u00e9is modulares de 500 mm e postes em H de a\u00e7o.<\/p>\n\n\n\n

        Especifica\u00e7\u00f5es t\u00e9cnicas<\/strong><\/p>\n\n\n\n

          \n
        • Altura do sistema:<\/strong> 3 m<\/li>\n\n\n\n
        • M\u00f3dulo de painel:<\/strong> 500 mm (A)<\/li>\n\n\n\n
        • Espessura do painel:<\/strong> 100 mm<\/li>\n\n\n\n
        • Comprimento do painel:<\/strong> 2000 mm \/ 2500 mm<\/li>\n\n\n\n
        • H-Post:<\/strong> 125 \u00d7 125 mm<\/li>\n\n\n\n
        • Conclus\u00e3o:<\/strong> Galvanizado + com revestimento em p\u00f3 para uso exterior<\/li>\n\n\n\n
        • NRC:<\/strong> \u2265 0,80<\/li>\n\n\n\n
        • Instala\u00e7\u00e3o:<\/strong> Pain\u00e9is encaixados em postes em H com juntas e parafusos<\/li>\n<\/ul>\n\n\n\n

          Aplica\u00e7\u00f5es<\/strong><\/p>\n\n\n\n

          Limites entre vias e zonas residenciais, per\u00edmetros escolares, recuos de hospitais, barreiras ac\u00fasticas comunit\u00e1rias.<\/p>\n\n\n\n

          Nota:<\/strong> A altura final est\u00e1 sujeita a uma avalia\u00e7\u00e3o do impacto sonoro local.<\/p>\n\n\n\n

          \n\n\n\n

          Barreira ac\u00fastica industrial \u2013 5 m de altura, painel ac\u00fastico de 120 mm<\/strong><\/p>\n\n\n\n

          Barreira industrial de alta resist\u00eancia com 5 m de altura e pain\u00e9is de 120 mm de espessura, destinada a equipamentos de grandes dimens\u00f5es e ao controlo do ru\u00eddo no per\u00edmetro da f\u00e1brica.<\/p>\n\n\n\n

          Especifica\u00e7\u00f5es t\u00e9cnicas<\/strong><\/p>\n\n\n\n

            \n
          • Altura do sistema:<\/strong> 5 m<\/li>\n\n\n\n
          • Dimens\u00f5es do painel:<\/strong> 500 mm (A) \u00d7 2000 mm \/ 2500 mm (C)<\/li>\n\n\n\n
          • Espessura do painel:<\/strong> 120 mm<\/li>\n\n\n\n
          • Chapa met\u00e1lica:<\/strong> 1,0 mm \u2013 1,2 mm<\/li>\n\n\n\n
          • H-Post:<\/strong> 150 \u00d7 150 mm<\/li>\n\n\n\n
          • Estrutura:<\/strong> Lado da fonte perfurado, n\u00facleo ac\u00fastico, parte traseira s\u00f3lida<\/li>\n\n\n\n
          • Conclus\u00e3o:<\/strong> Galvanizado + com revestimento em p\u00f3<\/li>\n\n\n\n
          • Cor:<\/strong> Cinza, verde, RAL personalizado<\/li>\n<\/ul>\n\n\n\n

            Aplica\u00e7\u00f5es<\/strong><\/p>\n\n\n\n

            \u00c1reas de geradores, esta\u00e7\u00f5es de compress\u00e3o, zonas de torres de refrigera\u00e7\u00e3o, muros de delimita\u00e7\u00e3o da f\u00e1brica.<\/p>\n\n\n\n

            Nota:<\/strong> Forne\u00e7a o esquema de disposi\u00e7\u00e3o do equipamento, o alinhamento das barreiras e os dados relativos \u00e0 carga do vento antes da elabora\u00e7\u00e3o do or\u00e7amento.<\/p>","protected":false},"excerpt":{"rendered":"

            A barreira ac\u00fastica \u00e9 um sistema ac\u00fastico profissional para exteriores composto por pain\u00e9is met\u00e1licos perfurados, enchimento fonoabsorvente e postes em H de a\u00e7o. O lado perfurado est\u00e1 voltado para as fontes de ru\u00eddo, enquanto a parte traseira s\u00f3lida bloqueia a transmiss\u00e3o do som. Fornecemos pain\u00e9is com espessuras de 80 mm, 100 mm e 120 mm. Todos os produtos s\u00e3o galvanizados e revestidos a p\u00f3 para uma longa durabilidade em ambiente exterior. \u00c9 amplamente utilizado em autoestradas, vias f\u00e9rreas, zonas residenciais e instala\u00e7\u00f5es industriais.<\/p>","protected":false},"featured_media":205,"template":"","wiremesh":[9],"class_list":["post-204","wire-mesh","type-wire-mesh","status-publish","has-post-thumbnail","hentry","wiremesh-wire-mesh-fence"],"acf":[],"yoast_head":"\nNoise Barrier | Highway Railway Sound Barrier & Acoustic Fence<\/title>\n<meta name=\"description\" content=\"Modular noise barrier with perforated panels and sound absorption infill. Hot-dip galvanized & powder coated. 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