Exterior insulation fireproof outer wall structure of wooden building

摘要

PROBLEM TO BE SOLVED: To provide exterior insulation fireproof wall structure for wood building which has excellent insulation efficiency and fireproof efficiency and realizes easy and low cost operation.SOLUTION: The exterior insulation fireproof wall structure comprises: structure surface material attached on outside of structural member constructed with wood; phenol form heat retaining plate which is attached on outside of the structure surface material and has thickness of 12 mm or more to 80 mm or less; incombustible drum edge material attached on outside surface of the phenol form heat retaining plate; and light bubble concrete panel attached on outside surface of the drum edge material. In the light bubble concrete panel, density d is 200 kg/mor more to 550 kg/mor less, thickness is 45 mm or more to 100 mm or less, ignition loss value α is 5 wt% or more to 15 wt% or less, and value of d(kg/m)×t(mm)×α(wt%)÷100000 is 6000 or more to 30000 or less.SELECTED DRAWING: Figure 1