Sheet Metal Roofing AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
A Sheet Metal Roofing AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew installing sheet metal roofing safe from the steep-slope or roof fall and slippery metal, from the sharp metal-edge cut and panel handling, and around the fastening, seaming, and wind. Sheet metal roofing installs sheet-metal roof covering — combining the steep-slope-or-roof-fall and slippery-metal hazard, the sharp-metal-edge-cut and panel- handling hazard, and the fastening-seaming and wind hazard. This guide walks through building a Sheet Metal Roofing AHA that names the steep-slope-or-roof-fall/slippery-metal, sharp-metal-edge-cut/panel-handling, and fastening- seaming/wind hazards and assigns the fall, cut/handling, and fastening controls that hold up in the field.
Why sheet metal roofing needs its own AHA
Sheet metal roofing is the installation of sheet-metal roof covering — the metal roofing (sheet-metal roofing panels and systems, including flat-seam, batten-seam, and formed metal roofing) installed on roofs. This heads the sheet-metal roofing group. The defining feature is the metal roof surface, where the fall hazard is dominant and compounded: the roof can be steep-slope or low-slope, and the finished metal surface is smooth and slippery (especially when wet, frosty, or dusty), so the fall/slip hazard is worse than on a shingle or membrane roof — plus the sharp metal edges, the panel handling (metal panels catch the wind), and the fastening/seaming. The hazards combine the steep-slope-or-roof-fall and slippery-metal (working on the metal roof — the fall hazard, worsened by the slippery metal surface), the sharp-metal-edge-cut and panel-handling (the sharp metal edges and handling the panels — the cut and handling hazards), the fastening-seaming and wind (fastening/seaming the panels and the wind — the fastening and wind hazards), and the eye. The steep-slope-or-roof-fall/slippery-metal and the sharp-metal-edge- cut/panel-handling justify a dedicated AHA.
Breaking sheet metal roofing into steps
The steps for a Sheet Metal Roofing AHA follow the work:
- Assess the roof (slope, edges, access, weather)
- Set up fall protection (accounting for slippery metal)
- Stage and handle the metal panels (wind, sharp edges)
- Position and align the sheet-metal roofing
- Fasten and seam the roofing
- Manage the fall, cut, and wind hazards
- Complete
Each step carries a hazard, and the steep-slope-or-roof-fall/slippery-metal, the sharp-metal-edge-cut/panel- handling, and the fastening-seaming/wind are where the most significant risks concentrate.
The hazards step by step
Steep-slope-or-roof-fall and slippery-metal
Working on the metal roof — the fall hazard, worsened by the slippery metal surface. The controls are fall protection with slippery-metal awareness (sheet metal roofing is installed on roofs (steep-slope or low-slope) at height — the fall hazard, and the finished metal roof surface is smooth and slippery (especially when wet, frosty, dusty, or oily from handling), which makes the slip-and-fall hazard worse than on a shingle or membrane roof — so fall protection appropriate to the roof (personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards on steep slopes, roof-edge protection), slip-resistant footwear, and awareness of the slippery metal (not walking on wet/frosty metal roofing, and clean footwear)), and the fall controls. The steep-slope-or-roof-fall/ slippery-metal is the primary defining hazard — metal roofing is a fall hazard worsened by the slippery surface. (These follow the roof-fall fundamentals.)
Sharp-metal-edge-cut and panel-handling
The sharp metal edges and handling the panels — the cut and handling hazards. The controls are sharp-metal-edge and panel-handling controls (sheet-metal roofing has sharp cut edges (a serious laceration hazard — cut-resistant gloves and careful handling), cutting/trimming the metal to fit (metal cutting — snips/shears/saws, the cut and swarf hazards), and handling the metal panels/sheets (which can be large, and can be sharp)), and the cut/handling controls. The sharp-metal-edge-cut/panel-handling is a defining hazard — sheet-metal roofing has sharp cutting edges. (These follow the sharp-edge and material-handling fundamentals.)
Fastening-seaming and wind
Fastening/seaming the panels and the wind — the fastening and wind hazards. The controls are fastening-seaming and wind controls (fastening the roofing (fastening tools) and seaming (hand or machine seaming for standing/batten- seam — the tool/pinch hazards), and the metal panels catch the wind on the roof (a metal roof panel is a sail — wind can catch it, hard to control at height, so wind awareness and securing panels), plus any soldering of flat/ batten-seam metal roofing (the hot-soldering burn hazard)), and the fastening/wind controls. The fastening-seaming/ wind is a defining hazard. (These follow the fastening and wind fundamentals.)
Eye
The eye (metal cutting, swarf, fastening) carries the eye hazard. The controls are eye protection (metal cutting chips/swarf and fastening debris), and the eye controls. (These follow the eye-protection fundamentals.)
A simple Sheet Metal Roofing AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Assess | Fall | Assess the roof (slope, edges, access, weather) | project |
| Fall protection | Fall / slip | Set up fall protection (accounting for slippery metal) | OSHA 1926.501 |
| Stage | Wind / sharp edge | Stage and handle the metal panels (wind, sharp edges) | project |
| Position | Sharp edge | Position and align the sheet-metal roofing | project |
| Fasten/seam | Fastening | Fasten and seam the roofing | OSHA 1926.302 |
| Manage | Fall / cut | Manage the fall, cut, and wind hazards | project |
Fall protection with slippery-metal awareness and sharp-edge/handling control
A Sheet Metal Roofing AHA centers on fall protection with slippery-metal awareness and sharp-edge/handling control. The fall protection with slippery-metal awareness addresses the metal-roof work — controlled by fall protection with slippery-metal awareness (fall protection appropriate to the roof, slip-resistant footwear, awareness of the slippery metal). The sharp-edge/handling control addresses the metal edges and panels — controlled by sharp-metal- edge and panel-handling controls (cut-resistant gloves, careful handling). And the fastening, seaming, wind, and eye get fastening/wind and eye controls. An AHA built on fall protection with slippery-metal awareness and sharp- edge/handling control, with fastening/wind controls, addresses the hazards that define sheet metal roofing.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, sheet metal roofing installs metal roof covering (flat-seam, batten-seam, and formed metal roofing) on roofs, and it heads the sheet-metal roofing group with a fall hazard that has a specific metal-roof twist. The steep-slope-or-roof-fall and slippery-metal hazard is the primary defining concern — sheet metal roofing is installed on roofs (steep-slope or low-slope) at height, and the finished metal roof surface is smooth and slippery, especially when wet, frosty, dusty, or oily from handling, which makes the slip-and-fall hazard worse than on a shingle or membrane roof (a metal roof can be like an ice rink when wet or frosty), so fall protection appropriate to the roof (personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards on steep slopes, roof-edge protection), slip-resistant footwear, and awareness of the slippery metal (not walking on wet or frosty metal roofing, keeping footwear clean) are central. The fall worsened by the slippery metal is the defining hazard.
The sharp-metal-edge-cut/panel-handling and the fastening-seaming/wind are the other defining hazards. On the projects I have run, sheet-metal roofing has sharp cut edges (a serious laceration hazard — cut-resistant gloves and careful handling), cutting/trimming the metal to fit (snips, shears, saws), and handling the metal panels/ sheets (large and sharp). And the fastening-seaming/wind hazard is fastening the roofing (fastening tools), seaming (hand or machine seaming for standing/batten-seam — tool and pinch hazards), the metal panels catching the wind on the roof (a metal roof panel is a sail — wind awareness and securing panels), and any soldering of flat or batten-seam metal roofing (the hot-soldering burn hazard). The eye hazard from metal cutting rounds it out. The AHA built on fall protection with slippery-metal awareness and sharp-edge/handling control is the one that protects the sheet-metal-roofing crew.
The bottom line
A Sheet Metal Roofing AHA names the steep-slope-or-roof-fall/slippery-metal, the sharp-metal-edge-cut/panel- handling, and the fastening-seaming/wind hazards with specific controls — fall protection with slippery-metal awareness (fall protection appropriate to the roof, slip-resistant footwear, not walking on wet/frosty metal), sharp-metal-edge and panel-handling controls (cut-resistant gloves, careful handling), and fastening-seaming and wind controls (safe fastening/seaming, wind awareness, soldering burn protection). The fall-with-slippery-metal control and the sharp-edge/handling control are the defining concerns. The AHA that manages both is the one that protects the crew.
Frequently asked questions
Why is the fall worsened by the slippery metal?
Sheet metal roofing is installed on roofs at height, and the finished metal roof surface is smooth and slippery (especially when wet, frosty, dusty, or oily from handling), making the slip-and-fall hazard worse than on a shingle or membrane roof (a metal roof can be like an ice rink when wet/frosty). Controls are fall protection with slippery-metal awareness (fall protection appropriate to the roof — personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards on steep slopes, roof-edge protection; slip-resistant footwear; not walking on wet/frosty metal, clean footwear), and the fall controls.
What sharp-edge and handling hazards apply?
Sheet-metal roofing has sharp cut edges (a serious laceration hazard), cutting/trimming (snips/shears/saws), and handling the metal panels/sheets (large and sharp). Controls are sharp-metal-edge and panel-handling controls (cut-resistant gloves and careful handling, safe metal cutting), and the cut/handling controls.
What fastening, seaming, and wind hazards apply?
Fastening the roofing (fastening tools), seaming (hand/machine seaming for standing/batten-seam — tool/pinch hazards), the metal panels catching the wind (a sail on the roof), and any soldering (hot-soldering burn). Controls are fastening-seaming and wind controls (safe fastening/seaming, wind awareness and securing panels, soldering burn protection), and the fastening/wind controls.
What is sheet metal roofing?
Sheet metal roofing is the installation of sheet-metal roof covering — the metal roofing (flat-seam, batten-seam, and formed metal roofing) installed on roofs. Because the metal roof is a fall hazard worsened by the slippery metal surface, the cut metal edges cause serious lacerations, and the panels catch the wind and are fastened/seamed, those hazards apply.
Related AHAs and JHAs
- Standing Seam Sheet Metal Roofing AHA — the standing-seam metal roofing
- Flashing and Sheet Metal AHA — the flashing and sheet-metal fundamentals
- Metal Roof Panels AHA — the related metal roof panels
- Standing Seam Metal Roof Installation JHA — the standing-seam-roof fundamentals
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.