E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
E04D 1/00 (2006.01) E04D 1/26 (2006.01)
Patent
CA 2056027
A plate roofing material is divided into an exposure portion which is exposed to the exterior when a roof is covered with plate roofing materials and an overlapped portion canceled under an exposure portion of a plate roofing material superimposed on the above plate roofing material. At least one longitudinal groove is formed on the surface of the exposure portion. The longitudinal groove has wide parts alternating with narrow parts, has sidewalls formed of a plurality of stepped portions, has a linear bottom part, has an approximately constant depth, and is approximately V-shaped in cross section.
Akiyama Tadashi
Hashimoto Mitsuji
Nagano Tomomi
Sakamoto Kazuhiro
Takai Hirofumi
Daiken Kogyo K.k.
Marks & Clerk
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