Roof curb frame with adjacent sides connected by drive cleat; and drive cleat for connecting adjacent walls; with interlocking sets of paired tabs and paired slots

摘要

Drive cleat 16 has two (or three) vertically spaced tab pairs 48a, (48b), 48c which engage with slots S on adjacent walls to interconnect sides of a roof curb frame. The drive cleat having 3 sets of tab pairs are also claimed.