capital safety inc–confidential cna roofer’s summit

Capital Safety Inc–Confidential

CNA Roofer’s Summit


Current Roof Anchor Offerings for Commercial Applications

2105683

• Metal Deck Swiveling Roof Anchor (Mounting Options)– Attaches to corrugated steel

decking with a minimum thickness of 22 gauge.

– If 22 gauge, does not have to attach to purlin.

– If not 22 gauge, have to hit a purlin with at least 8 fasteners

– Uses 16 ¼”-14 x 2-1/2” self drilling Tek screw

– Rated for 5,000 lbs when using this fastener.


Current Roof Anchor Offerings for Commercial Applications

2103676 or AJ730A

Standing Seam Swiveling Roof Anchor Metal Deck -Attaches to the standing seams of structural roof panels

-Can accommodate 24, 30, 32 and 36 inch seam spacings

2103675Reusable Roof Anchor

--This anchor may be installed on steel decking with a minimum material thickness of 22 gauge (.030 inch) over Z-purlins with a minimum material thickness of 16 gauge (.064 inch).

- Twelve 1/4"-14 screws are required to fasten the anchor.


New Roof Anchor Offerings

• Roof Top Anchor (Top 3 features)– Load distributing design – the post

tips over when loaded transferring the load to the base and structure

– Can be mounted to most commercial roof structures (corrugated metal, wood, rubber membrane)

– When mounted does not have to be attached to structural member.

– Part numbers – 2100070, 71– Price: $250.00 list



• Roof Top Anchor (Mounting Options)– Corrugated steel decking

• Type B wide Rib• Type F Intermediate Rib• 1-1/2” Composite• 2” Composite• R Panel• Type A Deck• Type B Inverted Form• Type S Deck

– Using 8mm Aluminum Rivet• Water proof when using

mastic, rivet has seal• Installed with rivet gun• 12 fasteners needed






– Using Fab-Lok Fac 10 fastener, SS screw, Aluminum body

• Water proof when using mastic, rivet has seal

• Installed with box wrench and cordless drill

• 16 fasteners needed– Rated for 5,000 lbs when

using this fastener.


New Roof Anchors Offerings



– Using ¼” Tek Screw fastener

• 16 fasteners needed




• Roof Top Anchor (Mounting Options)– Plywood

• 5/8” or larger CDX Plywood

– Using ¼” diameter lag screws, SAE Grade 2

• 16 fasteners needed




• Roof Top Anchor (Mounting Options)– Single Ply or Built up

Type Roof– XXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXX



Horizontal Lifeline Systems Portable

7600502 Synthetic Sayfline™

7602020 Cable Sayfline™


Horizontal Lifeline Systems OHSA Standards

What do they really mean?

OSHA states that any HLL shall be designed, installed, and used under the supervision of qualified person, as part of a complete personal fall arrest system, which maintains a safety factor of at least two or 2 to 1 safety factor.

Do I have a “qualified person” on my staff?

Does the 5,000 lb rule apply?

Do loads have to be known every time the system is installed?


Horizontal Lifeline Systems DIY versus Pre-Engineered

Ask yourself the following three questions:

Do I want to assume the liability?

Do I have the testing capabilities to meet the requirements?

Can I go home every night knowing I have my crews in compliance with OSHA standards?


Horizontal Lifeline Systems DIY System Problems

What are the biggest problems with DIY systems:

- Understanding end load of anchorages

- Understanding fall clearances

- “Qualified person” is either not involved or not qualified.

- If not, chances are the system does not meet OSHA requirements.


Horizontal Lifeline SystemMost Common Mistakes?

• Most Common Mistakes:– Under designed end anchors



• Most Common Mistakes:– Under designed cable terminations



• Most Common Mistakes:– Pretension in the lifeline

• Too much tension• Too little tension• Constantly changing tension



• Most Common Mistakes:– No inline shock absorbers incorporated



• Most Common Mistakes:– Calculating fall clearances



• Most Common Mistakes:– User equipment


Horizontal Lifeline SystemHLL Loads

• HLL Loads, how do they work?– HLLs may depending on their geometry

and angle of sag, be subjected to greater loads than the impact load imposed by an attached component. When the angle of a HLL sag is less than 30 degrees, the impact force imparted to the lifeline by an attached lanyard is greatly amplified. For example, with a sag angle of 15 degrees, the force amplification is about 2:1 and at 5 degrees sag it is about 6:1



• HLL Loads, how do they work, cont?– HLL end loads are dependent on horizontal

distance or span, vertical force, and pretension in the cable.



• HLL Loads, how do they work, cont?



• HLL Loads, how do they work, cont?– For example, you are designing a two user

system and you are utilizing 900 lb arresting force lanyards. Assume that your pretension yields a 10 degree vertical deflection during a maximum arresting force. The result is an end load amplification 2.9 times the arresting force or (900 lbs x 2 users x 2.9) = 5,220 lbs. Your end anchors or stanchions have to be designed for 10,440 lbs when applying the OSHA standard of 2:1.



• HLL Loads, how do they work, cont?– For example, you are designing a two user

system and you are utilizing 900 lb arresting force lanyards. Assume that your pretension yields a 5 degree vertical deflection during a maximum arresting force. The result is an end load amplification 5.7 times the arresting force or (900 lbs x 2 users x 5.7) = 10,260 lbs. Your end anchors or stanchions have to be designed for 20,520 lbs applying the OSHA standard of 2:1.


Horizontal Lifeline SystemHLL Loads Summary

• Every time a HLL system is installed the following must be known:– End loads must be calculated and documented by a

qualified person for end anchorage design requirements.

– Pretension in the HLL must be known and maintained at the same level throughout the job, if not, the end loads could increase dramatically.

– Number of users on the system has to be controlled and maintained throughout the job.

– The appropriate user equipment that the personnel is using has to be controlled and known throughout the job.


Horizontal Lifeline SystemHLL Loads Summary

• How can I make figuring the end loads out easier?


Horizontal Lifeline SystemInline Shock Absorbers

• Inline shock absorbers– Controls the end anchor

forces to a pre-determined value, every time

– Pretension on the system is not a huge factor when using in-line shocks.

– Number of users can range up to the capacity of the in-line shock absorber.

– Adds deflection of the cable which adds to your total fall distance.


Horizontal Lifeline SystemFall Clearances

• How are they calculated:– Five main

considerations:• Cable deflection• Braking distance of

user equipment• Body extension• Pendulum effect• Free fall



• Factors that should be considered when using a shock absorbing lanyard.



• Pendulum effect will add to your total fall distance.


Horizontal Lifeline System

• You may be saying:– “I am more confused now than before I

came.”– “I need easier solutions.”


Horizontal Lifeline SystemPre-Engineered HLLs

• The manufacturer is the qualified person for the design portion of the standard.

• Usually incorporate inline shock absorbers.

• Fall clearance charts are provided.• Detailed installation instruction manual is

provided.• Qualified person still has to supervise the

installation and use of the system.


Pilot Program – Commercial Roofer’s Kit

DBI/SALA would develop a commercial roofers kit consisting of the following:

2 Roof Top anchors

1 HLL either cable or synthetic (length TBD)

2 Harnesses (type TBD)

2 User equipment (type TBD)


Pilot Program – Commercial Roofer’s Kit

Discussion


Horizontal Lifeline Systems Permanent

Multi-span Sayfline™

Evolution™Sayfglida®

capital safety inc–confidential cna roofer’s summit

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