Ventilation structure in exterior wall body

Abstract

A ventilation structure in an exterior wall body incorporates: a pair of wooden column members erected spaced away from each other; a wooden beam member installed across on the pair of wooden column members and having a first ventilation groove at an exterior face; a wooden base member installed across lower ends of the pair of wooden column members and having a second ventilation groove at an exterior face; and a base plywood fixed to an exterior face of each of the pair of wooden column members, the wooden beam member, and the wooden base member, and serving as a base of a decorative exterior wall member, wherein a plurality of the first ventilation grooves and a plurality of the second ventilation grooves are formed away from each other in a horizontal direction.

1 . A ventilation structure in an exterior wall body, the ventilation structure comprising:
 a pair of wooden column members erected spaced away from each other;   a wooden beam member installed across on the pair of wooden column members and having a first ventilation groove at an exterior face;   a wooden base member installed across lower ends of the pair of wooden column members and having a second ventilation groove at an exterior face; and   a base plywood fixed to an exterior face of each of the pair of wooden column members, the wooden beam member, and the wooden base member, and serving as a base of a decorative exterior wall member,   wherein a plurality of the first ventilation grooves and a plurality of the second ventilation grooves are formed away from each other in a horizontal direction.   
     
     
         2 . The ventilation structure in the exterior wall body according to  claim 1 , wherein an exterior face of the base plywood is away from an interior face of the decorative exterior wall member. 
     
     
         3 . The ventilation structure in the exterior wall body according to  claim 2 , further comprising:
 an intermediate column member erected between the pair of wooden column members; and   a reinforcement plywood installed at an interior side relative to the base plywood and fixed to the intermediate column member,   wherein the reinforcement plywood has an upper end installed spaced away from a lower end face of the wooden beam member, and a lower end installed spaced away from an upper end face of the wooden base member.