High performance stucco to optimum moisture management in wood-frame stucco wall

This paper presents the results of experimental and numerical modeling studies examining the overall moisture management capacity of wood-frame walls clad with stucco. The research sought to identify high performance stucco materials having low liquid diffusivity but high water vapor permeability. The research measured and compared the liquid water and water vapor transmission properties of several commercial/conventional stucco materials and some newly formulated compositions.Ce document pr\ue9sente les r\ue9sultats d?\ue9tudes de mod\ue9lisations exp\ue9rimentales et num\ue9riques portant sur la capacit\ue9 de contr\uf4le de l?humidit\ue9 globale des murs \ue0 ossature de bois \ue0 rev\ueatement de stucco. La recherche visait l?identification des mat\ue9riaux \ue0 base de stucco \ue0 hautes performances qui pr\ue9sentent un coefficient de diffusion des liquides faible mais une perm\ue9abilit\ue9 \ue0 la vapeur d?eau \ue9lev\ue9e. On a mesur\ue9 et compar\ue9 les propri\ue9t\ue9s de transmission de l?eau \ue0 l?\ue9tat liquide et \ue0 l?\ue9tat de vapeur de plusieurs mat\ue9riaux de stucco commerciaux de type classique et de certaines compositions nouvellement formul\ue9es.Peer reviewed: YesNRC publication: Ye