DRY WALL, CONCEITO E VANTAGENS 
Autor: Edvard J. Nacur Martins - Consultor Imobiliário | Publicado: 2014-08-04T12:37:00-07:00






Dry
Wall,&nbsp;que
significa em português "parede seca", é uma&nbsp;tecnologia&nbsp;que substitui as vedações internas
convencionais (paredes,&nbsp;tetos&nbsp;erevestimentos)
de edifícios de quaisquer tipos, consistindo de&nbsp;chapas de gesso&nbsp;aparafusadas em estruturas de perfis
de&nbsp;aço&nbsp;galvanizado. Esta tecnologia já é
utilizada na Europa e nos Estados Unidos há mais de 100 anos e no Brasil este
sistema veio ganhando espaço nos últimos anos em função da instalação em nosso
país de três grandes fabricantes europeus do sistema: LAFARGE (francesa), PLACO
(francesa) e KNAUF (alemã).

O
sistema&nbsp;dry wall&nbsp;consiste numa edificação de paredes de
gesso que são mais leves e com espessuras menores que as das paredes de
alvenaria. São chapas fabricadas industrialmente mediante um processo de
laminação contínua de uma mistura de gesso, água e aditivos entre duas lâminas
de cartão. Tais sistemas são usados somente em ambientes internos das edificações,
para os fechamentos externos, o sistema deverá utilizar perfis de aço
estruturais (steel frame) e chapas cimentícias (resistentes à ação de ventos e
chuvas).

O método está sendo muito utilizado na
construção civil, principalmente para áreas comerciais. As paredes de gesso&nbsp;dry wall&nbsp;permitem instalações elétricas e
hidráulicas através do&nbsp;sistema de fixação a polvora&nbsp;em tetos ou aparafusadas em perfis de
aço galvanizado. Além disso, adaptam-se a qualquer estrutura, como aço,
concreto ou madeira.

A montagem do sistema&nbsp;dry wall&nbsp;é fácil, com redução de prazo de
entrega e, consequentemente, custos menores. Com o sistema, há um ganho de área
útil que pode chegar a 4% e as paredes têm superfície lisa e precisa,
diminuindo custos na preparação da superfície para a pintura.

Como as paredes são mais leves que o sistema
de alvenaria tradicional, o sistema de parede de&nbsp;dry wall&nbsp;mais simples (W-111 que corresponde a
uma linha de perfil e uma chapa de cada lado) pesa cerca de 25Kg contra
150&nbsp;kg de uma parede de alvenaria, consegue-se com a utilização deste
sistema uma redução no custo das fundações e estruturas da edificação.
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As chapas de gesso devem ser produzidas de
acordo com as seguintes Normas ABNT (Associação Brasileira de Normas Técnicas):
NBR 14715:2001, NBR 14716:2001 e NBR 14717:2001.



Fonte: Wikipedia