| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lightweight roof material excellent in all of heat insulation performance, soundproofing performance, fireproof and fire-resistant performance and durability.SOLUTION: The present invention is a roof material 1 having a core material 3 between a pair of base materials 2. In the roof material 1, the core material 3 includes a foam resin 4 and an inorganic foam particle 5 uniformly dispersed in the foam resin 4 and having an average particle diameter of 1 mm or more, and a mass rate of the inorganic foam particle 5 to the foam resin 4 is 2.0 or more. The roof material 1 can impart design having a three-dimensional feeling by setting a thickness to 8 mm or more.</p> |
