Warning Label SAS-CRA Commercial Roof Anchor CRA ... · Specification of Use: A fall arrest anchorage device for single or multiple users. ... SAS-CRA Commercial Roof Anchor Instruction

Specification of Use:A fall arrest anchorage device for single or multiple users. May be used for horizontal line applications, provided the system is designed by a“qualified person”( OSHA definition). For engineering purposes, the CRA has a maximum strength of 10,000lb (4,536kg). May not be used to support scaffolding, window washing or hoisting equipment.

Single and Multiple User Specification / Fall Arrest:The CRA is rated for a single person with a maximum weight of 310lb (140kg) including tools and equipment. For single or multiple users OSHA1926:502(d)(15)(i)(ii) specifies that the anchorage device and structure to which it is attached, must be capable of supporting twice the intended fall protection load and designed by a qualified person. For example: the MAF (max. arrest force) for the shock absorber is 900lb (408 kg) x 2 workers= 1,800lb (816 kg). A safety factor of 2 = 3,600lb. (1,632 kg). The CRA is specified to withstand a 5,400lb (2,449kg) force load when attached to a wood structure or steel deck as shown in fig.4 and fig. 7. In this example the structure must be capable of supporting a 3,600lb load thus allowing two workers to be tied off to the anchor.

SAS-CRA Commercial Roof AnchorInstruction / Specification Manual 08

Description:Hot dip galvanized steel anchorage device with a 3”(77mm) tubular Riser welded onto a 3/8” (9.5mm) 16” x 16” (408 x 408mm) base plate, fig.1. The 1/2”d. (13mm) U-bar at the top of the riser accepts all types of lifeline connecting hardware. The Storm Cap, shown in fig. 3, has an inside diameter of 3.5” (90mm). The Flashing Base, shown in fig. 2, covers the anchor fasteners providing a smoother finished roofing surface. Each anchor includes: 40 ea. #14 x 2.5” (5.5 x 64mm) hex head screws.

CRA overWood Sheathing.

8-9/16”(14mm)Bolt Holes.

40-3/8”(10mm) Fastener Holes.

12”(305mm)Or

18”(457mm)

16”(406mm)Base Plate.

Riser.

Fig.1

Flashing Base.

21”(535mm)Square.

Connector Ring.

Fig.2

Fig.5

Page 1

WARning To UseR:Use Only Super Anchor Safety (SAS) Instruction/Specification manuals for SAS equipment. You must read this manual before you use this device. Improper use can result in serious injury or death. Consult SAS-07 English / Spanish manual for more information about fall protection.

Part #1032 12” Riser (305mm)Part #1033 18” Riser (457mm)

strength Rating:5,400lb (2,449kg)

Wood Framing with Plywood Sheathing:The anchor must be installed in the center of a plywood sheet that is 48”x 48” (1,220 x 1,220mm) and is secured to at least 3 top chords as shown in fig. 6. The primary sheathing must be fastened to the top chords and all perimeter edges, 8”(203mm) on center using at least 21 each 2”x#14 (5.5 x 50mm) deck screws. Secure a sheet of 3/4” x 48”(19 x 1,220mm) plywood backer board as shown in figs.4 and 6, cut to fit between the inside width of the top chord spacing. Attach the backer board to the primary sheathing using the same fastening pattern and screws. Note: deck screws are not supplied by SAS.

Anchor Fastening Specification:Attach the anchor using 40 -2.5”x #14 (5.5 x 64mm) hex head screws. The fasteners must penetrate the backer board. Do a visual inspection from the underside to verify. For top chords spaced 24”(610mm), center the anchor as shown in fig.4 and 6. For top chords less than 24” (610mm) two backerboards must be used and the anchor centered over the top chord as shown in fig. 5. Use only SAS factory supplied fasteners part# 2022, unless otherwise noted in this manual or manufacturers addendum.

Fig.6

Mfg. Super Anchor Safety 8522-216th St. SE, Woodinville, WA 98072 USA Phone: 425-488-8868 www.superanchor.com

Plywood Decking Minimum Thickness

1/2 “ (13mm) T&G Decking Minimum

1-1/2” ( 38mm)

2”#14 (5.5 x 50mm)Deck Screws.

3/4" x 24” x 48”(19 x 610 x 1,220mm)Plywood Backer Board.

When Top Chords areLess than 24”(610mm)Two Backer Boards are

Required as shown.

40-#14 x 2.5”(5.5 x 64mm)

Hex Head Screws.

8” 203mm

48”

(1,2

20m

m)

Fasten Backer Boardwith 2” #14 (5.5 x 50mm)

Deck Screws.(shown in red)

Every 8”

Every 203mm

Primary Sheathing.2” #14

(5.5 x 50mm) Deck Screws.(shown in gray)

Center Anchorover 24”x48”

(610 x 1,220mm)Plywood.

24” Spacing. 610mm Spacing.

16” (406mm)Backer Board. Backer Board.

Top Chord

*Not included.

Hand Hold.

Storm Cap.Cap Tether.

Lead Flashing.(shown in blue)ABS Flashing Base.

Fig.3

Warning Label

Fig.4

Part# Riser Ht. Base Plate Fastener Holes 1032 12” (305mm) 16”x16” (406 x 406mm) 40-3/8” (10mm)

1033 18” (457mm) 8-9/16” (14mm)

2007F* Storm Cap 3-1/2”d. x 8”ht. (89 x 203mm)

2000* ABS Flashing Base

2004* Lead Flashing 24”x 24”x 10”ht. (610 x 610 x 254mm)

2008F* Cap Leash

2022 Hex Screws 40 #14 x 2.5” (5.5mm x 64mm)

2023 Storm Cap, Flashing Base, Cap Leash

16”x16 (406 x 406mm)”

36"x 36" (915 x 915mm)Second Layer Width.

Fig. 11Less Than20 gauge

Metal Decking.

Second Layer Metal DeckingShown in Red.

#14Deck ScrewsShown in Red.

Fig. 10Sheathing BackedInsulation Board.

3/4”x 24”x 24”(19 x 610 x 610mm)PT-Plywood Backer Board.

1/2" (13mm)6- Grade 8 Bolts

or Grade 5 All Thread

Fig. 7CRA

Installed over 20 Gauge Metal Decking.

Raised Channel.

8 each 1/2” (13mm)Impediment Bolts

Rated for 6,000lb (2,721kg) Tensile strength.

Fig. 13Concrete Substrate

4”(102mm) Thick2,000 p.s.i.

Factory Supplied 36 #14 x 2.5” (64mm) Hex Head Screws.

Drill 3/32” (2.5mm) Pilot Holes..

Fig. 9Plywood or OSB over Metal Deck.

Fig. 8Center Fasteners

over Raised Channels.

Fig. 14

Suggested Spacing Between Anchors and Distance from Leading Edge.

Leading Edge

Lead

ing

Edge

6-10ft

20ft (6m) (2-3m)

20ft

(6m

)

6-10ft

Steel Decking Minimum 20 Gauge Required:Center the anchor base plate fastener holes over the raised channel of the steel decking as shown in fig. 8. Drill 3/32” (2.5mm) pilot holes. Attach the anchor to the metal deck using 36 #14 x 2.5”(5.5 x 64mm) hex head screws.Take care not to over tighten fasteners. Decking less than 20 gauge: Attach a second layer of metal decking 36” x 36” (915 x 915mm) as shown in fig.11 (in red color), over the primary metal decking shown in black. Attach the second layer to the primary using #14 deck screws, 8” (204mm) on center through all raised channels of the metal decking. Or attach a pressure treated plywood backer board to the underside of the steel decking as shown in fig.10 and secure with the specified grade 8 bolts. Metal decking over steel purlins or web trusses. Attach using the same method specified for Steel I Beams shown in fig.12. Drill through the metal decking and bolt the anchor base to a steel backer plate. Center the anchor riser over the top of the truss or purlin.

Steel Decking with Wood Sheathing:Using the fastening method shown in fig.8 and 9, position the anchor over the wood sheathing so the hex head screws penetrate the raised channel of the metal deck. Secure with 36 #14 x 2.5” (5.5 x 64mm) hex head screws.

Rigid Insulation Board with Wood Substrate:As shown in fig. 10, bolt the anchor base to a 3/4”x 24” (19 x 610mm) square PT-plywood backer board on the underside of the primary sheathing. Drill through the insulation board, primary sheathing, and backer board. Use 8 each 1/2” (13mm) grade 8 bolts of sufficient length and secure with lock nuts and washers. Position bolt holes over raised channels if possible.

Concrete Slab:Attach the CRA through the 9/16” (14mm) holes as shown in fig. 13, using 8 each 1/2” (13mm) 6,000lb (2,722kg) tensile strength bolts rated for concrete impediment. The concrete must be a minimum of 4” (102mm) thick, rated at 2,000 p.s.i.. A margin of 1/2”(13mm) between the bottom edge of the concrete slab and the bottom of the bolt, is required. The concrete must be cured sufficiently to withstand the intended fall protection load before using for fall protection.

Steel I-Beams / Wood Beams:As shown in fig. 12, the CRA, may be attached onto a steel or wood beam. Use 6 each 1/2” (13mm) grade 5 all thread or grade 8 bolts to attach the anchor base to a 3/8”(10mm) thick steel backer plate that is 16” x 16” (406mm) or larger, drilled to mirror the anchor base plate attachment holes being used. When using the 3/8”(10mm) holes, a minimum of 8 bolts are required. Contact SAS for factory fabricated backer plates.

Horizontal Line Rigging:The horizontal lines used between anchor points must be engineered to withstand the intended fall protection load. Do not use a lifeline that is rated for vertical personal fall protection as a horizontal line. Contact SAS for custom fabricated horizontal lines, rope grabs and connectors.

Anchor Location / Spacing:The recommended spacing between anchor locations as shown in fig. 14, is no more than 20ft (6m) apart and 6-10ft (2-3m) from the leading edge.

SAS-CRA Instruction / Specification Manual © SCN-08

Fall Protection System Specifications: Vertical Horizontal Number Designed by aMethod Specified Line Line of Workers Qualified Person Fall Arrest Yes Yes 1 Not RequiredFall Arrest Yes N/A 2 or more RequiredFall Restraint Yes Yes 4 maximum. Not RequiredFall Restraint Yes Yes More than 4 Required

Fig. 15

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1/2"(13mm)Grade 8 Bolts or Grade 5 All Thread.

Steel/Wood Beam or Metal Purlin.

Steel I-BeamBolt Head Flushwith Base Plate.

3/8” (10mm) Backer Plate.

Fig. 12

Purlin.