| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame-less heat-insulated double ventilation layer panel used for the rooftruss of a building capable of transforming a sheathing panel into a lightweight heat-insulated panel with ventilation layer without using frame member such as wood, capable of coping with dimensional change due to the contraction of wood by drying by fitting a sloped beam and a rafter by the elastic deformation performance of a heat insulated material, enabling a reduction in weight to eliminate the defect of a panel with wood frame and airtightness and heat insulation performance by the wood frame without stresss against deformation, and capable of preventing dew condensation from occurring due to a temperature difference by a ventilation layer on the rear surface of a rafter material and a ventilation layer on the rear surface of a roof rear finish surface material. SOLUTION: The sheathing plate 5 is transformed into a surface material such as a plywood. The ventilation layer 7 is formed on the rear surface thereof and the resin heat-insulation material 2 is mounted thereon to form a wood panel without frame. A heat-insulated double ventilation layer panel without frame is fitted to the rough surface of wood by its elastic deformation performance when fitted between the sloped beams 1 (rafters). Accordingly, the airtight heat insulation construction of the surface of a roof can be completed without applying an airtight seal to the panel. COPYRIGHT: (C)2007,JPO&INPIT
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