Air circulation board for cavity wall construction

Details Air circulation board for cavity wall construction Air circulation board for cavity wall construction

E - Fixed Constructions

04

F

E04F 17/00 (2006.01)

Patent

CA 2476793

A corrugated board ((32) is secured to the inner wall (12) of a cavity wall construction (10) to establish a defined spacing (25) between the inner and outer walls (12, 13) and prevent excess mortar from bridging (28) to the inner wall (12). The corrugated board (32) has a series of spaced channels, furrows or grooves (34) into which an anchor (24) projects into the studs (16) of the inner wall (12) to secure the outer wall (13). The corrugated board (32) is installed prior to the construction of the outer wall (13) and establishes a minimum spacing or gap (25) between the walls (12, 13) based upon the thickness of the board (32). The outer wall (13) is constructed immediately adjacent to the outer face of the corrugated board (32). The grooves or channels (34) of the corrugated board (32) create a chamber for vapor and air circulation. The board (32) eliminates bridging by the mortar (22) and provides an air conduit to exhaust even the minimal amounts of vapor that will occur in the cavity (25).

Une plaque ondulée (32) est fixée sur la paroi intérieure (12) d'un mur creux (10) pour définir un espacement déterminé (25) entre les parois intérieure et extérieure (12, 13) et empêcher l'excédent de mortier de s'accumuler (28) sur la paroi intérieure (12). La plaque ondulée (32) comporte une série de canaux, de sillons ou de rainures (34) dans lesquels un ancrage (24) se projette dans les goujons (16) de la paroi intérieure (12) pour fixer la paroi extérieure (13). La plaque ondulée (32) est installée avant la construction de la paroi extérieure (13) et définit un espacement ou un intervalle minimum (25) entre les parois (12, 13) en fonction de l'épaisseur de la plaque (32). La paroi extérieure (13) est construite au voisinage le plus immédiat de la face extérieure de la plaque ondulée (32). Les rainures ou les canaux (34) de la plaque ondulée (32) créent une chambre utile pour la circulation de la vapeur et de l'air. La plaque (32) élimine la liaison avec le mortier (22) et assure un conduit d'évacuation de l'air même pour les quantités minimales de vapeur qui peuvent exister dans la cavité (25).

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