EPDM Roofing Installation JHA (Job Hazard Analysis / Activity Hazard Analysis)
Updated 2026-06-23
An EPDM Roofing Installation JHA (Job Hazard Analysis / Activity Hazard Analysis) is the plan that keeps the crew installing EPDM roofing from falling off the roof, being exposed to the adhesives and solvents, or strained handling the large membrane sheets. EPDM roofing installation lays and seams the rubber single-ply membrane that waterproofs low-slope roofs — combining the fall hazards of roof work, the adhesive and solvent hazards of the seam and bonding adhesives, and the large-sheet handling. This guide walks through building an EPDM Roofing Installation JHA that names the fall, adhesive/solvent, and material-handling hazards and assigns the fall-protection, chemical, and handling controls that hold up in the field.
Why EPDM roofing installation needs its own JHA
EPDM (ethylene propylene diene monomer) roofing installation lays and seams the single-ply EPDM rubber membrane on low-slope roofs — rolling out the large rubber sheets over the insulation/cover board, mechanically fastening, adhering, or ballasting them, and seaming with seam tape and adhesives (EPDM is a thermoset rubber, so seams are adhered/taped, not heat-welded). The defining installation feature is the adhesives and solvents. The hazards combine the falls (the fall hazards of low-slope roof work — the leading roof hazard), the adhesives and solvents (EPDM uses bonding adhesives, splice/seam adhesives, primers, and solvents — chemical exposure, flammability, and fume hazards, the defining EPDM hazard), the large-sheet handling (EPDM comes in large, heavy sheets/rolls — handling, wind-catching, and the ergonomic hazards), and the general roof hazards. The falls and the adhesive/solvent hazards justify a dedicated JHA.
Breaking EPDM roofing installation into steps
The steps for an EPDM Roofing Installation JHA follow the installation:
- Establish fall protection on the roof
- Stage and handle the membrane sheets/rolls
- Roll out and position the large sheets
- Apply bonding adhesive and adhere the membrane
- Prime and adhere/tape the seams
- Manage the adhesive, solvent, and fume hazards
- Detail the penetrations, edges, and flashings
- Inspect and verify the seams
Each step carries a hazard, and the falls, the adhesives/solvents, and the large-sheet handling are where the most significant risks concentrate.
The hazards step by step
Falls
The fall hazards of low-slope roof work — from the edges, through openings, and the leading roof hazard. The controls are fall protection appropriate to the roof (guardrails, personal fall arrest/restraint, warning lines and safety monitor where permitted), protecting edges and openings, and the working-at-height controls. (These follow the roof-work and working-at-height fundamentals.)
Adhesives and solvents
EPDM uses bonding adhesives, splice/seam adhesives, primers, and solvents (including solvent-based products) — chemical exposure (skin, inhalation), flammability (solvent-based adhesives and primers are flammable — a fire hazard on the roof), and fume hazards. The controls are chemical PPE (gloves, eye protection) for the adhesives and solvents, ventilation and fume management (managing the solvent vapors), eliminating ignition sources around flammable adhesives/primers (no smoking, no hot work near the vapors), reviewing the SDS, and the chemical/flammable controls. The adhesives and solvents are the defining EPDM hazard — chemical and flammable. (These follow the roof-membrane-adhesive fundamentals.)
Large-sheet handling
EPDM comes in large, heavy sheets and rolls, handled and rolled out, with handling, wind-catching (large sheets catch wind — a struck-by and loss-of-control, and off-the-roof hazard), and ergonomic hazards. The controls are team handling of the large sheets, managing the sheets in wind (large EPDM sheets are like sails in wind), controlled roll-out, and the material-handling controls. The large wind-catching sheets are a specific handling hazard. (These follow the material-handling and temporary-roof-protection fundamentals.)
General roof hazards
The general roof hazards (heat, weather). The controls are heat-illness prevention and the weather controls.
A simple EPDM Roofing Installation JHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Establish fall protection | Fall | Fall protection per roof, protect edges/openings | OSHA 1926.501 |
| Handle sheets | Struck-by / wind / strain | Team handling, manage sheets in wind, controlled roll-out | OSHA 1926.250 |
| Apply adhesive | Chemical / flammable | Chemical PPE, ventilation, no ignition sources | OSHA 1926.59 |
| Adhere/tape seams | Chemical / fume | Chemical PPE, fume management, SDS | OSHA 1926.59 |
| Manage solvents | Fire / fume | Eliminate ignition sources, ventilation, flammable controls | OSHA 1926.152 |
| Detail penetrations | Chemical / fall | Adhesive and fall controls at details | OSHA 1926.501 |
Fall protection and adhesive/solvent control
An EPDM Roofing Installation JHA centers on fall protection and adhesive/solvent control. The fall protection addresses the leading hazard — falls from the low-slope roof — controlled by fall protection appropriate to the roof, protecting edges and openings. The adhesive/solvent control addresses the defining EPDM installation feature — the bonding adhesives, seam adhesives, primers, and solvents that are chemical and flammable — controlled by chemical PPE, ventilation and fume management, and eliminating ignition sources around the flammable products. A JHA built on fall protection and adhesive/solvent control, with large-sheet handling controls, addresses the hazards that define EPDM roofing installation.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, EPDM roofing shares the fall hazards of low-slope roof work but has a defining installation feature that sets it apart from heat-welded membranes like TPO and PVC: EPDM is adhered and taped, not welded, so it relies heavily on adhesives and solvents. EPDM uses bonding adhesives, splice and seam adhesives, primers, and solvents — many of them solvent-based — and these bring chemical exposure (skin and inhalation), flammability, and fume hazards. The flammability is a specific concern: solvent-based adhesives and primers are flammable, and their vapors on a roof can ignite, so eliminating ignition sources (no smoking, no hot work near the vapors), ventilation, chemical PPE, and managing the solvent fumes are the controls. The adhesives and solvents are what define EPDM installation safety.
The falls and the large-sheet handling are the other defining hazards. The falls are the leading hazard of the low-slope roof work, controlled by fall protection appropriate to the roof. And EPDM comes in large, heavy sheets — larger than many other membranes — which catch wind like sails, so a large EPDM sheet in wind can pull a worker off balance or off the roof, or be lost off the roof. On the projects I have run, the controls are team handling of the large sheets, managing them in wind, and controlled roll-out. The roof heat and weather round out the hazards. The JHA built on fall protection and adhesive/solvent control, with large-sheet handling, is the one that protects the EPDM crew.
The bottom line
An EPDM Roofing Installation JHA names the fall, the adhesive/solvent, and the material-handling hazards with specific controls — fall protection appropriate to the low-slope roof with edges and openings protected, chemical PPE with ventilation and ignition-source elimination for the adhesives and solvents (flammable and fume hazards), and team handling with wind management for the large sheets. The falls and the adhesives/solvents are the defining hazards. The JHA that manages both is the one that protects the crew.
Frequently asked questions
Why are adhesives and solvents the defining EPDM hazard?
EPDM is a thermoset rubber that is adhered and taped rather than heat-welded, so it relies on bonding adhesives, splice/seam adhesives, primers, and solvents (many solvent-based) — bringing chemical exposure (skin, inhalation), flammability (solvent-based products are flammable), and fume hazards. Controls are chemical PPE, ventilation and fume management, eliminating ignition sources around the flammable products, reviewing the SDS, and the chemical/flammable controls.
Why is flammability a specific EPDM concern?
Solvent-based adhesives and primers used with EPDM are flammable, and their vapors on a roof can ignite from smoking, hot work, or other ignition sources — a fire hazard. Controls are eliminating ignition sources around the flammable adhesives and primers (no smoking, no hot work near the vapors), ventilation to manage the vapors, and the flammable-material controls.
What are the large-sheet handling hazards?
EPDM comes in large, heavy sheets and rolls (larger than many membranes), handled and rolled out, with handling, wind-catching (large sheets catch wind like sails, a struck-by, loss-of-control, and off-the-roof hazard), and ergonomic hazards. Controls are team handling of the large sheets, managing the sheets in wind, controlled roll-out, and the material-handling controls.
How does EPDM differ from TPO and PVC installation?
EPDM is a thermoset rubber that is adhered and taped (relying on adhesives and solvents), while TPO and PVC are thermoplastics whose seams are heat-welded. This means EPDM's defining hazard is the adhesives and solvents (chemical, flammable, fume), whereas TPO/PVC's defining hazard is the hot-air welding (burns). All three share the fall and handling hazards of low-slope roof work.
Related JHAs
- Roof Membrane Adhesive Application JHA — the adhesive application fundamentals
- TPO Roofing Installation JHA — the heat-welded single-ply alternative
- Roof Work JHA — the general roof-work fundamentals
- Roof Insulation Installation JHA — the insulation beneath the membrane
Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.