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Trincamento em forro de gesso acartonado não é fatalidade: na grande maioria dos casos, é falha de rigidez e travamento estrutural por desconhecimento normativo. Na montagem da malha , fazer a união entre a estrutura superior e a inferior com parafuso ponta agulha causa dois problemas graves: 1. Ponto de tensão concentrada: A cabeça do parafuso gera uma saliência no dorso do perfil.
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