| 摘要 |
<p>PURPOSE:To provide a heat insulating material for roof surface having the structure, of which width can be adjusted in response to an error of a space between rafters and which can easily form a passage for circulating air without hindering the essential function as a heat insulating material. CONSTITUTION:Fitting pieces 2A, 2B are projected from nonconnection sides of a pair of foaming resin members 1A, 1B, of which both sides are formed with thick parts 3A, 3B and of which central parts in the longitudinal directions are formed with ventilating grooves 4A, 4B. The member 1A arranged in the connection side is formed with a fitting projecting part 5, and the other member 1B is formed with a fitting recessed part 6, and the fitting projecting part 5 and the fitting recessed part 6 are engaged with each other to connect the pair of foaming resin members 1A, 1B to form single plate 1. Width of the single plate 1 is changed for coincidence with the width of rafters by changing the engagement depth of the fitting projecting part 5 and the fitting recessed part 6. Since ventilation holes are formed between the top surfaces of the ventilating grooves 4A, 4B and a roof board laid thereon and a clearance is formed at a contact point of the lower surface of the ventilating grooves 4A, 4B and a purline, flow of the air is not hindered.</p> |
