FIRE RESISTANT EXTERNAL CORNER OUTER WALL CONSTRUCTION METHOD AND BACKING MATERIAL OF ITS EXTERNAL CORNER OUTER WALL MATERIAL

摘要

PROBLEM TO BE SOLVED: To prevent corrosion of an inner wall and an internal facing material by infiltration of rainwater with easy execution work by constituting an external corner outer wall of an external corner outer wall material and an L-shaped backing material having the same shape as this. ;SOLUTION: This external corner outer wall is composed of an external corner outer wall material 4 and an L-shaped backing material 1 having the same shape as this. That is, the backing material 1 composed of a corrosion resistant/heat resistant metallic thin plate or a synthetic resin thin plate which is rich in adhesion and joins to an L-shaped corner top part 2 easily causing a crack of the outer wall material 4, is arranged inside the projected corner wall material 4. The backing material 1 is adhered to and integrally fixed to the inside of the outer wall material 4 by protrusively arranging a calking material 3 or applying an adhesive to the L-shaped corner top part 2 of the backing material 1. Therefore, corrosion of an inner wall and an internal facing material by infiltration of rainwater can be prevented with easy execution work.;COPYRIGHT: (C)1999,JPO