Trap for building debris, has plastic strip or tarpaulin held by pair of retainers on top of slanting roof, in which a part of tarpaulin resting on roof top is arranged without extending over bearing surfaces of retainers

摘要

The trap (2) has a plastic strip or a tarpaulin (6) held by a pair of retainers (8) on top of a slanting roof (4). The part of the tarpaulin resting on the roof top is arranged without extending over the bearing surfaces of the retainers.