Roof Safety Tips for Facilities Managers

01/02/2020 | By Janelle Penny

Roof safety practices can be easy to overlook for building owners who aren’t dealing with the roof every day the way a roofing contractor would. Recent OSHA rule changes have brought roof safety issues back to the forefront, explains Kirk Dighton, safety manager for roofing contractor D. C. Taylor Co.

Many building owners simply don’t know what the OSHA requirements are. Now that the rules are changing, it’s a great time to refresh your memory on roof safety.

 “We’ll do a roof bid and do a pre-construction meeting with the project manager, and inevitably before I leave, we’re talking about permanent fall protection and starting a roof safety survey,” Dighton says. “A lot of times they’ll go ‘You’re right, we need to do this, because my HVAC guys go up there.’ The problem is basically not realizing they have a hazard.”

Keeping people safe on your roof requires a work culture that respects the OSHA requirements. Colleagues should look out for each other and make sure everyone is observing the requirements.
Photo: Construction safety inspector wearing fall safety harness walking on the roof by clipping safety rope on fall arrest, fall restraint horizontal safety line while inspecting fixed roof anchor points. Credit: Shutterstock

Make sure you’re protecting your crew on the roof and observing the OSHA roof safety requirements with these tips.

Understand These 6 Common Roof Hazards

Keeping people safe on your roof starts with understanding the six most common hazards that can put their safety at risk.

1. Skylights

“Skylights are deadly,” Dighton says. “They look really nice, they’re pretty from the inside and they let in natural light, but that area is extremely deadly. If you’re working on an HVAC system within 5 feet of a skylight, and you pull on something and suddenly lose your balance, you’re going through it.” Skylights should be covered with netting or cages to protect roof workers in case they fall on the skylight, Dighton explains.

[From IRE: Is It Time to Replace Your Skylight?]

2. Soft decks

You may or may not be aware of soft spots in the roof deck. They’re caused by long-term water damage and can buckle when someone walks on them, creating the conditions for a fatal fall injury.

3. Steep slope roofs

Workers on roofs with a high pitch can fall off the edge if they lose their footing.

4. Lack of edge protection

It’s easy to lose track of how close you are to the edge of the roof, especially when you’re concentrating on looking for roof damage or you’re busy servicing rooftop equipment. Put up a warning line system marking a distance of 15 feet from the roof edge so people know when they’re getting close. Walk pads are another option—they not only mark the perimeter, but also protect the roof from foot traffic damage. However, it’s up to you to make sure people are staying on the walk pad or inside the marked perimeter if you choose not to use warning lines or guard rails.

5. Roof access

A new OSHA requirement eliminates the old ladder cages and specifies mandatory safety measures for fixed ladders.A new OSHA roof safety requirement mandates fall protection systems for fixed roof access ladders that are more than 24 feet tall. It could be a self-retracting lifeline from above, a center cable for a harness or another strategy. Propping an extension ladder through the roof hatch isn’t safe, Dighton explains.

OSHA’s revised requirements no longer recognize the classic cage around the ladder as a safe option. Building owners have until November 2036 to comply with this requirement. (Photo: A new OSHA requirement eliminates the old ladder cages and specifies mandatory safety measures for fixed ladders.)

6. Hatch and vent covers

Roof hatches and automatic smoke vents sometimes have translucent covers so they can double as skylights, notes Steve Weyel, product specialist for roof hatch manufacturer The BILCO Company. If your roof hatch fits this description, Weyel recommends making sure it can handle impact in case someone falls onto the dome.

“These products must pass an impact test to ensure that they meet the structural requirements to prevent someone from falling through the dome,” Weyel explains. “There are two types of materials used to construct domes for roof hatches and smoke vents: acrylic and polycarbonate. The acrylic material does not pass the impact test on its own, so a secondary metal security screen or mesh must be placed over the dome after the product is installed. The polycarbonate material is strong enough to pass the test, so no secondary screen is required.”

[On topic: Rooftop Management: Eliminate Injury Risk]

Have the Right Roof Fall Protection

The right roof fall protection for your crew depends on many factors, including the slope of your roof, the specific fall hazards on your roof and how well your personnel adhere to roof safety best practices. A roof safety survey is a great place to start—it can identify gaps in your workers’ knowledge and places where you need to beef up protective equipment. (See “Roof Safety Surveys” below.)

Roof Safety Surveys

Identify the hazards on your roof to determine what kind of protection you need. Kirk Dighton, safety manager for roofing contractor D. C. Taylor Co., recommends starting with this list of potential sources of danger. Reach out to an expert to learn more about your fall protection options to mitigate these hazards.

  • How high is the roof?
  • How does your crew access the roof?
  • When and why do personnel access the roof? How often?
  • What fall hazards are there?
  • Are there any existing roof anchors, guard rails or tie-off points for fall restraint or arrest systems?
  • Does the roof have skylights or other penetrations?
  • What is the roof slope?
  • What is the deck type? If it’s metal, what is the deck gauge?

All roof fall protection falls into two categories: passive and active.

1. Passive roof fall protection, such as a guardrail system, doesn’t require anyone to interact with it or wear it—it just sits on your roof and does its job.

2. Active roof fall protection is designed to be actively used by your personnel on the roof. It includes harnesses, lanyards, anchor points and horizontal lifeline systems that workers connect themselves to whenever they go on the roof.

Horizontal safety lines let workers walk across the roof to work without having to disconnect their harnesses.
Photo: Horizontal safety lines let workers walk across the roof to work without having to disconnect their harnesses. Credit: Shutterstock

You need both types of systems “any time you’re working outside the guardrail system,” Dighton says. “People will need to adjust or change a light or a camera system on the edge of the building, and they’ll have to reach through the guardrail. Any time you put your body through the guardrail, you need to have an anchor point and tie off.”

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Remember OSHA’s Roof Safety Requirements

There are several OSHA rules that protect your personnel when they’re on your roof. Here are four of the key requirements to remember, though this is not an exhaustive list. Check out OSHA’s official resources at osha.gov/stopfalls for training tips, videos and more.

1. When to use fall protection

Your crew needs fall protection any time they’re at least 4 feet above the ground unless they’re professional roofers, in which case the requirement starts at 6 feet. If they’re on a scaffold, the rule is 10 feet of height. This protection could be passive or active. Anyone doing roofing trade work needs either 100% tie-off protection (meaning that they’re tethered to the roof at all times), or a set of warning lines 6 feet from the edge of the roof with fall protection any time workers go outside those boundaries.

People doing non-roofing trades on the roof (for example, a facilities manager working on the rooftop HVAC unit) must obey a 15-foot boundary, in which they need fall protection any time they come within 15 feet of an edge or fall hazard.

2. Roof hatches

People who are working on roofs often leave the roof hatch open so they won’t get locked out and stuck on the roof, but the open hatch is a safety hazard.Leaving the roof hatch open creates an instant fall protection violation, but many workers don’t close the hatch for fear that they’ll be locked out or stuck on the roof, Weyel says. “Roof hatch manufacturers now offer a fixed railing system that guards the opening when the roof hatch is in the open position,” he adds. “Systems are available with removeable chains to guard the egress opening or with a self-closing gate to ensure continuous fall protection.” (Photo: People who are working on roofs often leave the roof hatch open so they won’t get locked out and stuck on the roof, but the open hatch is a safety hazard.)

3. Designated work areas

OSHA allows you to delineate parts of a low slope roof as designated work areas. They can be 6-15 feet from the edge and must be marked with warning lines. Employees can do work in these areas without additional fall protection as long as their work is both infrequent and temporary—for example, changing a belt on a piece of equipment. Otherwise, fall protection is required.

4. Ladders

OSHA no longer allows cages or wells as acceptable fall protection for fixed ladders taller than 24 feet if they were installed on or after Nov. 19, 2018. You have to install a ladder safety system or a personal fall arrest system. Step-through ladders can have flare extensions of up to 36 inches if you install a ladder safety system, and it must have grab bars that extend 42 inches above the access or landing platform.

Creating a Culture of Roof Safety

The requirements can only protect your workers if they use roof safety equipment and best practices every time they’re supposed to. It only takes one accident without fall protection for someone to be seriously injured—or worse.


Look out for each other on the roof.
Photo: Keeping people safe on your roof requires a work culture that respects the OSHA requirements. Colleagues should look out for each other and make sure everyone is observing the requirements. Credit: Shutterstock

Dighton recommends auditing personnel to make sure everyone’s doing the right thing when no one is looking. Mistakes may not trigger a firing, but should be learning experiences for everyone. D. C. Taylor maintains a zero-tolerance policy for safety requirements, and people who make mistakes help teach everyone else. On the roof, workers should look out for each other and make sure everyone is following the requirements.

“You have to take care of your people. It’s not about profit over safety or profit over people,” Dighton says. “You have to do the right thing.”

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