Unit VII Project.docx - 1 New Construction Risk Assessment...

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New Construction Risk Assessment
Johnathan Berry
Columbia Southern University
OSH 5302: Safety Engineering
Professor Momani
05/24/2022

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New Construction Risk Assessment
Acme General Contractors has been hired by the city of Centerville to build a new 20-
story commercial building in the downtown area. The building will use a rigid-frame structure
and reinforced concrete construction. The Acme Roofing Company will be performing the
roofing, interior insulation, and drywall installation and has requested a risk assessment be
conducted to identify any safety hazards prior to the start of the job.
Technical Report
Hazard Identification
The table below indicates hazards that are associated with roofing, insulation installation,
and drywall installation. A quantitative risk assessment of each hazard was conducted and can be
located in Appendix A.
Table 1
Hazard Identification
Operation Hazard
Roofing hazard Falling from rooftop (185 ft)
Roofing hazard Slippery surface (slip, trip, and fall)
Roofing hazard Falling/dropping objects from roof
Insulation hazard Inhalation of insulation fibers
Insulation hazard Skin irritation from insulation
Insulation hazard Fibers in the eyes
Drywall hazard Back injury from overexertion
Drywall hazard Laceration from cutting tools
Drywall hazard Breathing in drywall dust
Quantitative Risk Assessment
A quantitative risk assessment is an extensive, systematic approach to identifying hazards
and determining risk levels in the evaluation of activities, processes, and systems (Molazemi
2022). This is the best approach for determining the severity of the risk associated with the
hazards that were identified during the inspection.

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Findings and Recommendations
Roofing Hazard
Falls from height are the major cause of death and injury when working on roofs (MBAV,
2020). The new building will be 20 stories or 185 feet tall, a fall from this height will result in
life threatening injuries and/or death. Utilizing the quantitative risk assessment this hazard has
been identified as being extremely high. Workers will be exposed to unprotected edges and
potential high winds. When working outside the environment can be very unpredictable and can
create hazards for employees. Rain, snow, morning frost and morning dew can create slippery
surfaces for employees working on roofs which presents the possibility of a slip, trip, or fall from