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{ SPECIAL CONSIDERATIONS <br /> Some trades such as roofing,overhand bricklaying and related work have special considerations. <br /> ROOFING <br /> Low slope roofs (4 to 12 or less in pitch): Each employee engaged in roofing activities on low slope roofs <br /> with unprotected sides and edges 6 feet(Federal),(10 feet for Washington State,20 feet unless steeper than a <br /> 7/12 for California) or more above lower levels should be protected from falling by any motion-stopping <br /> system,warning fine system,safety monitoring system or a combination thereof. <br /> Steep roofs(any pitch greater than 4 to 12): Each employee on a steep roof with unprotected sides and edges <br /> 6 feet (Federal), (10 feet for Washington State 20 feet unless steeper than a 7/12 for California) or more <br /> above lower levels should be protected from falling by guardrail systems with toeboards,safety net systems, <br /> scaffolds or platforms,or personal fall-arrest systems. <br /> OVERHAND BRICKLAYING <br /> This refers to the process of laying bricks and masonry units such that the surface of the wall to be jointed is <br /> oil the opposite side of the wall fi-om the mason, requiring the mason to lean over the wall to complete the <br /> work. Related work includes mason-tending and electrical installation incorporated into the brick wall during <br /> f the overhand bricklaying process. <br /> Each employee performing overhand bricklaying and related work 6 feet or more above lower levels must be <br /> protected from falling by guardrail systems,safety net systems,personal fall-arrest systems or should work in <br /> a controlled access zone. <br /> Employees reaching more than 10 niches below the level of the walking/working surface on which they are <br /> working should be protected from falling by a guardrail system,safety net or personal fall-arrest system. <br /> Controlled Access Zone (CAZ) is an area in which certain work such as overhand bricklaying or precast <br /> concrete erection may take place without the use of guardrail systems, personal fall-arrest systems or safety <br /> net systems,and access to the zone is controlled. <br />