E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
72/43
E04D 3/02 (2006.01) E04D 11/00 (2006.01) E04D 11/02 (2006.01)
Patent
CA 1228744
Abstract of the Disclosure A roof construction comprising ballast blocks each having two parallel edges beveled at substantially identical angles of 12° to 23° from the vertical, the remaining two edges being substantially vertical, the blocks being laid in a pattern adjacent each rectangular corner of the roof so that downwardly and outwardly beveled edges are adjacent each roof edge at the corner.
460066
Roofblok Limited
Smart & Biggar
LandOfFree
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