| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulation structure of a roof easy in construction for forming a comfortable space by restraining a temperature change in an attic space while providing the superior heat insulation effect. SOLUTION: This heat insulation structure of the roof is constituted so that a cross-sectional I-shaped rafter 2 composed of upper-lower flanges 21 and 22 and a web 23 is respectively arranged in a plurality on both side of a ridge beam 1; a heat insulation board 3 is arranged between the webs 23 and 23 of the rafters 2 and 2 on both sides of the ridge beam 1 in a state of placing its both end parts 31 and 31 on the lower flange 22 of the rafter 2; a heat insulation material 34 of a small cross section is arranged between end parts 32 and 32 of the heat insulation board 3 of a part of the ridge beam 1; a heat insulation layer is formed for continuing over the other side from one side of the ridge beam 1; a ventilation layer 5 is formed between the heat insulation board 3 and a sheathing roof board 4 on the upper flange 1; and the ventilation layers 5 on both sides of the ridge beam 1 communicate with a ridge part ventilation structure 9 arranged in the part of the ridge beam 1. COPYRIGHT: (C)2007,JPO&INPIT |
