| 摘要 |
PROBLEM TO BE SOLVED: To prevent a deflection of a ceiling surface, wherein a surface member which forms a ceiling surface and a substrate member which is mounted on a rear surface of the surface member are adhered with each other by means of a double-sided foamed resin adhesive tape so that even when the substrate member and the surface member are elongated, the elongation difference between these tow members can be absorbed by the substrate material of the double-sided foamed resin adhesive tape. SOLUTION: A ceiling substrate frame 21 which is made of channel steel is mounted on a beam 20 which is made of H-steel. A panel engaging frame 23 which is made of a downwardly open lip-channel steel is suspended from the substrate frame 21 by means of a hanger bolt 21. A channel frame 14 which works as a substrate member of a ceiling radiant panel 23 is engaged with this panel engaging frame 23 so as to support the ceiling radiant panel 4. Then, a frame 14 of the ceiling radiant panel 4 and the radiation plate 11 which is made of a high thermal conductive material and forms a surface member are adhered with each other by means of a double-sided foamed resin adhesive tape 25. Due to such a construction, even when the frame 14 and the radiation plate 11 are elongated, the elongation difference between these tow members can be absorbed by the substrate material of the double-sided foamed resin adhesive tape 25 so that a deflection of the ceiling surface can be prevented. |
