| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dwelling environment being cool in summer and warm in winter by controlling a hot air in an attic space part of a building using an air flow passage between a double roof and an external wall. <P>SOLUTION: The air flow passages 17 and 19 communicating between the attic space part 3 and an underfloor part are formed inside the building 1. The building 1 is formed with the double roof 7 and a clearance between the double roof 7 is communicated with appropriate parts of the attic space. Electric fans 11, 23, and 25 are disposed in the communication parts between the attic space part 3 and the clearance between the double roof 7 and appropriate parts of the air flow passages. An upper-part enveloping plate is provided with a hole 29 for exhausting the air to the outside or taking the outside air therein. The electric fans are driven in the normal direction to exhaust the hot air in the attic space part 3 through the hole 29 or lead the underfloor cold air to the attic space part 3, thereby enhancing the cooling effect. The electric fans are driven in the reverse direction to lead the hot air to the attic space part 3 or the underfloor part, thereby enhancing the heating effect. <P>COPYRIGHT: (C)2003,JPO |
