1. SCAFFOLDING SAFETY
29 CFR
29 CFR
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2. 14/3/2018

3. Topics to be discussed….
Scaffold Design Requirements
Scaffold Erection Requirements
Scaffold Alteration Requirements
Scaffold Dismantling Requirements
Safe Usage of Scaffolding
Tagging System
Scaffolding Inspection Checklist
Scaffolding Permit
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4. What is Scaffolding?
Scaffold is an elevated temporary work platform used for supporting workers (or) materials (or) both.
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5. Parts of Scaffolding Standard Ledger Transom Cross Bracing Top Rail
Mid Rail
Toe Board
Brick Guard
Base Plate & Sole Plate
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6. Basic Parts of Scaffolding
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8. Top Rail, Mid Rail & Toe Board
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9. Brick Guard
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10. Cross Bracing
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11. Base Plate
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12. Types of Scaffolding
There are three basic types of scaffolds: Supported scaffolds, which consist of one or more platforms supported by rigid, load- bearing members, such as poles, legs, frames, outriggers, etc.
Suspended scaffolds, which are one or more platforms suspended by ropes or other non-rigid, overhead support.
Other scaffolds, principally man lifts, personnel hoists, etc., which are sometimes thought of as vehicles or machinery, but can be regarded as another type of supported scaffold.
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14. Supported Scaffolds
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Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, posts, frames, or similar rigid support.
Frame (or) Fabricated Scaffold
Mobile Scaffold
Ladder Jack Scaffold
Pump Jack Scaffold
Tube & Coupler Scaffold
Pole Scaffold
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15. Frame (or) Fabricated Mobile
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16. Mobile Scaffold Braced to prevent collapse.
Casters and wheels locked to prevent movement while in a stationary position.
Platforms must not extend beyond the base supports of the scaffold, unless stability is ensured.
Not allowed to ride on scaffolds unless the surface on which scaffold is being moved is free of pits, holes and obstructions.
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17. Suspended Scaffolds Single Point Two Point Multi Point Catenary
Interior Hung
Needle Beam
Multi Level
Float
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18. Single Point Two point
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19. Multi Point Catenary
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20. Suspended Scaffold Safety
Counterweights secured, and not removed until scaffold disassembled
Tiebacks secured to sound anchorage on the building or structure
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21. Other Scaffolds – Aerial Lift
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22. Aerial Lift Ensure proper fall protection prior to using
Includes use of guardrails
Never exceed load capacity
Do not move lift truck with workers in basket unless adequately designed (upper controls – personnel carriers)
Brakes set for outrigger use (wheels chocked)
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23. Scaffold Competent Person
Inspect scaffolding and components prior to each work shift
Determine possibility of providing fall protection and access
Evaluate connections to support load
Determine structural soundness
Train erectors and dismantlers to recognize work hazards
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24. Scaffold Tagging System
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25. Red Tag….
Indicates the scaffold has not been inspected or is not safe for use
“DO NOT USE SCAFFOLD”
message must be visible
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26. Green Tag….
2/28/02
2/14/02
A. SULAIMAN
K. SALEH
Khaled Saleh
431056
3/14/02
3/28/02 6
TANK 105 a
233100
Ahmed Sulaiman 2
Indicates scaffold is complete, has been inspected, and is safe for use at the time of inspection
GREEN scaffold tag valid for a maximum of two weeks
Insert fits into holder
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27. Yellow Tag….
Indicates scaffold has been inspected and may be used only by workers wearing a properly anchored personal fall arrest system, including a full body harness and lanyard
YELLOW scaffold tag valid for two weeks maximum 2
4/10/02
A. SULAIMAN
K. SALEH
Khaled Saleh
431056 6
TANK 105 a
233100
Ahmed Sulaiman
Insert fits into holder
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28. Displaying of Tag….
RED scaffold tag (holder) to be built into scaffold, near each point of access, by scaffold craftsmen
Only qualified scaffold craftsmen are allowed on a scaffold with a RED scaffold tag
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29. If Scaffold EQUAL TO or LESS THAN 6 meters (20 feet) high:
Scaffold Supervisor signs GREEN or YELLOW scaffold tag(s) and prints date when next inspection is due
“Date of next inspection” must not be more than 2 weeks ahead
Supervisor inserts the signed GREEN or YELLOW tag(s) into the RED holder(s)
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30. If Scaffold MORE THAN 6 meters (20 feet) tall:
Scaffold Supervisor signs tag(s) and leaves “Date of Next Inspection” blank
Supervisor gives the signed GREEN or YELLOW tag(s) to a Scaffold Inspector
All Scaffold Inspectors and Scaffold Supervisors MUST BE CERTIFIED
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31. If Scaffold MORE THAN 6 meters (20 feet) tall:
Scaffold Inspector inspects scaffold
As soon as possible after Scaffold Supervisor’s inspection
Scaffold Inspector also fills in and signs separate “Scaffold Field Inspection Checklist”
Inspector gives this checklist to Work Permit Issuer’s unit, who will keep it until scaffold is taken down
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32. If Scaffold MORE THAN 6 meters (20 feet) tall:
If Scaffold Inspector agrees that scaffold is safe to use, he will:
Fill in and sign GREEN or YELLOW scaffold tag(s)
Previously given to him by Scaffold Supervisor
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33. Scaffold Erection Requirement
Only competent & experienced person must be permitted to erect & dismantle the scaffolding at site.
Guardrails, mid rails & toe boards must be placed on all open side of platforms more than 1.2 meters above ground (or) floor.
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34. Scaffold Erection Requirement
The top rail must be placed approximately mm high from the platform.
The mid rail must be placed approximately 600 mm high from the platform.
The toe board must be placed approximately 300 mm from the platform.
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35. Top Rail, Mid Rail & Toe Board
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36. Scaffold Erection Requirement
All scaffolds shall be provided with an access ladder that extends to at least 1 meter above the platform.
Platforms should be 220mm wide & 25mm thick and it should be tightened with scaffolding to prevent movements in high winds.
Scaffolds should be cleaned after the completion of work.
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37. Scaffold Erection Requirement
Should be on a firm foundation with base plates.
Should be properly braced & tied up.
Should have a properly tightened platform.
Should have guardrails over 1.2 meters.
Should have adequate means of ingress & egress.
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38. Ladder Safety

39. Scaffold Erection Requirement
Must be able to support its own weight and 4 times the maximum intended load.
Scaffolds must be designed by a qualified person.
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40. Scaffold Erection Requirement
Any scaffold damaged or weakened from any cause shall be immediately repaired and shall not be used until repairs have been completed.
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41. Planking
All planking or platforms shall be overlapped (minimum 12 inches) or secured from movement.
Scaffold planks shall extend over their end supports not less than 6 inches nor more than 18 inches.
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42. Platform Construction
No paint on wood platforms, except edges that may be marked for identification.
Fully planked.
No mixed components, unless compatible and integrity maintained.
No modification of mixed components unless approved by competent person.
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43. Common Scaffold Safety Tips
Never use scaffolds that do not have proper guardrails installed
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44. Common Scaffold Safety Tips
Must bear on adequate foundations
Unstable objects will not be used as working platforms
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45. Common Scaffold Safety Tips
Lifeline support must be checked for compatibility prior to use.
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46. Life Line
LIFE LINE
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47. Access Must have safe access
Cross-braces prohibited as means of access
Rest platforms required at 35 feet intervals
Slip-resistant on all steps and landings
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48. PFAS Workers must be trained how to properly use PFAS.
PFAS include anchorage, lifeline and full body harness with double lanyard.
Both Active & Passive Fall Protection.
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49. Restrictions Don’t overloaded. Don’t Erect & move near power lines .
Repair damaged components.
Restrict horizontal movement of workers unless provided with fall protection.
Prohibit work activities during high winds unless authorized.
Remove whole scaffold from service until repaired.
Note – Scaffolds must be erected 10 feet away of the overhead power line with 300 volts to 50KV.
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50. Over Head Power Lines Proper clearance near overhead lines
Keep 10 foot minimum unless de-energized,
Relocated, or installed protective covering installed!
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51. Restrictions No work on snow, or ice covered platforms
No barrels, boxes or ladders on top of scaffolds
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52. Training Required
Employees must receive training from qualified person that covers:
Nature of hazards, electrical, falls, and falling items
Use of scaffold / handling
Maximum intended load and load carrying capabilities of scaffold
Procedures for setup, dismantling or moving the system
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53. In General….
Follow the manufacturer's instructions when erecting the scaffold.
Do not work on scaffolds outside during stormy or windy weather.
Do not climb on scaffolds that wobble or lean to one side.
Initially inspect the scaffold prior to mounting it. Do not use a scaffold if any pulley, block, hook or fitting is visibly worn, cracked, rusted or otherwise damaged.
Do not use any scaffold tagged "Out of Service".
Do not work on platforms or scaffolds unless they are fully planked.
Do not use a scaffold unless guardrails and all flooring are in place.
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54. In General….
Do not walk or work beneath a scaffold unless a wire mesh has been installed between the top rail and the toe board or planking.
Use your safety belts and lanyards when working on scaffolding at a height.
Attach the lanyard to a secure member of the scaffold.
Do not climb the cross braces for access to the scaffold. Use the ladder.
Do not jump from, to, or between scaffolding.
Do not move a mobile scaffold if anyone is on the scaffold.
Chock the wheels of the rolling scaffold, using the wheel blocks, and also lock the wheels by using your foot to depress the wheel-lock, before using the scaffold.
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55. Resources
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cument?p_table=STANDARDS&p_id=9720
affoldinginfo.htm
Scaffold Safety Hand book – Saudi Aramco
ANY QUERIES???
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