| 摘要 |
PROBLEM TO BE SOLVED: To improve the working efficiency of an external construction method by reasonably forming a heat insulation covering and a ventilation layer using a ventilating heat insulation composite panel having a heat insulation layer and the ventilation layer in the external heat insulation structure of a wooden building. SOLUTION: A ventilation heat insulated roof composite panel 2 is formed by alternately vertically disposing ventilation line grooves G and installation wall-thickness parts 2C on the installation surface 2S of the heat insulation layer 2B of a foam plastic heat insulation material, and integrally installing a roof substrate material 2A of structural plywood on the installation surface 2S while laterally keeping a halving width a3. The roof panels 2 are joined to and disposed on sheathing rafters 23B vertically and horizontally, and the sheathing rafters 23B are fixed by driving long screws 11A therein from the surface of the panels 2. Consequently, a roof R is constructed of the roof panels 2 so that air a can flow from the eaves part 8 to the ridge part 7 of the roof through the group of line grooves G of the panels 2. COPYRIGHT: (C)2009,JPO&INPIT
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