the worker screws the snow retaining s to the roof with a screwdriver

snowcutting elements work height snowblowers screwdriver cold worker gloves winter hat jacket roof roofing tool construction site house home man construct cover workman structure frame build builder sky contractor residential tile timber row industry exterior equipment wood built detail repairman shingle plywood manual wooden professional repair texture steel sheeting drill hammer carpenter nail architecture screws snow retaining master season works roof attaches snow-shattering elements carefully applying galvanized behaves carefully height house