| 摘要 |
PROBLEM TO BE SOLVED: To improve heat insulation effect, soundproof effect and strength, and to produce long material by forming polygonal or circular hollow parts in building corrugated plate material. SOLUTION: This building corrugated plate material is formed with polygonal or circular hollow parts. Hereby, strength is improved, longer material can be produced to eliminate joints required hitherto for constructing a roof or a wall, and waterproof performance is improved. By forming the hollow parts of polygonal section, flat parts can be formed on the corrugated plate material to facilitate drilling. Further joint part of the materials can be more firmly joined together by the use of foaming assistant core material 1, hollow assistant core material, connecting washer or the like. Consequently, withstand load performance is improved, and construction in a fallen snow zone is facilitated. By providing hollow parts, heat insulation effect or soundproof effect can be improved.
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