Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part R - MISCELLANEOUS CONSTRUCTION REQUIREMENTS › Section 296-155-755 - Roofing, insulating and waterproofing

Current through Register Vol. 24-14, July 15, 2024
(1) Roofers hoisting jack must be constructed
				to withstand the contemplated load to be hoisted. The beam from counter balance
				point to heel of jack must be at least 3/4 the length of the entire
				beam.
(2) You must counterweight
				hoisting jack with a minimum of 3 times the contemplated maximum load to be
				lifted. You must securely fasten counterweight to heel of jack to prevent
				displacement, or you must fasten the jack by means of lashing, bolting, or
				other means to prevent displacement.
(3) You must provide a steel collar or U-bolt
				and shackle on head of the hoisting jack for attachment of pulley.
(4) Hoisting pulleys must be of steel
				construction.
(5) Where materials
				are hoisted by hand the hoist line must be not less than 5/8 manila rope, or
				the equivalent. Where machine hoist is used the hoist line must be wire
				rope.
(6) Hoisting hooks must be of
				cast or forged steel heavy enough to prevent straightening under a
				load.
(7) Workers must not stand
				under load when material or hot asphalt is being hoisted.
(8) You must keep hot asphalt at a safe level
				in buckets for carrying and hoisting.
(9) Workers must not carry service buckets of
				hot asphalt up ladders.
(10)
				Service buckets must be standard safety bucket or flatbottom bucket with bails
				fastened to an offset ear firmly riveted to side of bucket. There must be a
				handle riveted near bottom of bucket for tipping purposes.
(11) Ladders must extend at least 3 feet
				above the platform or roof served and must be secured at top and bottom to
				prevent slipping.
(12) You must
				erect safeguards to prevent loads and lines contacting power lines where not
				possible to work in clear of power lines.
(13) You must not throw asphalt chunks into
				hot tar pot, but you must place it so as to prevent splashing of hot
				material.
(14) There must be means
				to smother fires at fired tar pots.
(15) Mop or spud bar handles over 3 feet long
				must be of wood or other nonconductive material.
(16) Persons working at kettles or handling
				hot tar must, wear gloves and have arms fully protected.
(17) You must keep open tar heating pots
				outside of buildings.
Note:
Electric type tar heating equipment may be
						  used inside of the working enclosure provided that exhaust fans in connection
						  with tubing, either rigid or flexible, capable of carrying fumes created by the
						  heating process to the outside air are installed and in constant use during
						  heating operations. The equipment should be provided with hinged lid or baffle
						  plate for the purpose of immediate smothering of a pot fire.
(18)
				While hot tar is being applied inside an enclosure, you must install exhaust
				fans to supplement natural ventilation to expedite removal of gaseous fumes
				from the building.
(19) Flame
				heated tar pots are prohibited on roofs of structures.
(20) Tar pots must have an attendant at all
				times while in operation.
Order 74-26, § 296-155-755, filed 5/7/74, effective
					 6/6/74.