Cal. Code Regs. Tit. 8, § 1724 - Roofing-General
(a) Roof Jack
Systems (Includes Jacks, Planks and Appurtenances.)
(1) Roof jacks shall be constructed to fit
the slope of the roof and be designed, fabricated and installed in such a
manner that they will sustain all expected loads. The supported plank shall be
positioned at some angle from perpendicular to the roof to horizontal. For
suggested installation, see Appendix Plate C-19.
(2) Intervals (spans) between roof jacks
shall not exceed 10 feet.
(3) When
rope supports are used, they shall consist of first-grade Manila rope of at
least ¾ -inch diameter or other material of equivalent
strength.
(4) Wooden supporting
members that span between jacks, as illustrated in Appendix Plate C-19, shall
be selected lumber as defined in Section
1504(a), or
equivalent and be of at least 2-inch by 6-inch material. Where supporting
members other than wood are used they shall be of at least the equivalent
strength.
(b) Crawling
Boards.
(1) Crawling boards shall be not less
than 10 inches wide and 1-inch thick, and shall have cleats of at least 1-inch
by 1 ½ -inch material. The cleats shall be equal in length to the width
of the board and spaced at equal intervals not to exceed 24 inches. Nails shall
be driven through and clinched on the underside of the board.
(2) Where building design permits, the
crawling boards shall extend from the ridge pole to the eaves.
(3) A firmly fastened line of at least
¾ -inch diameter Manila rope, or equivalent, shall be laid beside each
crawling board for use as a handhold.
(4) Crawling boards shall be secured to the
roof by adequate ridge hooks or other effective means.
(c) Catch Platforms.
(1) When catch platforms are used, they shall
be installed in close proximity below the eaves below roof work areas, extend
at least 2 feet horizontally beyond the projection of the eaves, and be
provided with standard railings and toeboards (See Article 16).
(2) The platforms shall be fully
planked.
(d) Scaffold
Platforms.
(1) When built-up scaffold
platforms are used to protect workers from falls from the edges of roofs, they
shall be installed and maintained in accordance with the provisions of Article
22, Scaffolds.
(2) A fully planked
platform shall be provided near the eave level.
(e) Eave Barriers.
(1) When a system of eave barriers is
provided to prevent falls from roofs, the barrier, unless of solid
construction, shall be in accordance with the provisions of Article 16,
Standard Railings.
(2) The barrier
system shall be securely anchored at eave level or supported by ropes securely
tied to substantial anchorages on the roof.
(3) If the barrier system is to be moved from
one work area to another, employees performing the moving operation shall be
protected by the use of safety belts and lines.
(f) Personal Fall Protection.
(1) Where used to prevent workers from
falling off roofs, personal fall arrest systems, personal fall restraint
systems and positioning devices shall be installed and used in accordance with
the provisions of Article 24, Fall Protection.
(2) Safety lines shall be attached in a
secure manner to substantial anchorages on the roof.
(g) High-Lift Material Trucks. Standard
railings and toeboards shall be provided on the open sides of the platforms of
high-lift material trucks when the platform is used as a work surface, except
when it is not feasible during loading or unloading operations at elevations 7
½ -feet or more above ground, floor or level underneath.
(h) Ramps and Runways.
(1) Ramps or runways erected and used
exclusively for the purpose of loading or unloading roofing materials at
elevations above ground, or other level below, not exceeding 20 feet in height
shall be at least 40 inches in width. At those elevations exceeding 20 feet in
height, standard guardrails shall be installed and maintained on both sides of
the ramp or runway.
NOTE: A 10-inch wide horizontal opening is permitted between the railing and the ramp or runway platform.
Notes
2. Amendment of subsection (g) filed 10-30-81; effective thirtieth day thereafter (Register 81, No. 44).
3. Amendment of subsection (a) filed 3-29-82; effective thirtieth day thereafter (Register 82, No. 14).
4. Amendment of subsections (a), (b), (d), (e) and (h) filed 12-15-86; effective thirtieth day thereafter (Register 86, No. 51).
5. Amendment of subsection (f)(1) filed 7-2-98; operative 8-1-98 (Register 98, No. 27).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Amendment of subsection (g) filed 10-30-81; effective thirtieth day thereafter (Register 81, No. 44).
3. Amendment of subsection (a) filed 3-29-82; effective thirtieth day thereafter (Register 82, No. 14).
4. Amendment of subsections (a), (b), (d), (e) and (h) filed 12-15-86; effective thirtieth day thereafter (Register 86, No. 51).
5. Amendment of subsection (f)(1) filed 7-2-98; operative 8-1-98 (Register 98, No. 27).
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