Asphalt Shingles AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
An Asphalt Shingles AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew installing asphalt shingles safe from the steep-slope roof fall, from the nail gun and tools, and around the material handling and heat. Asphalt shingles installs asphalt-shingle roofing — combining the steep-slope-roof-fall hazard, the nail-gun and tool hazard, and the material-handling and heat hazard. This guide walks through building an Asphalt Shingles AHA that names the steep-slope-roof-fall, nail-gun/tool, and material-handling/heat hazards and assigns the fall, tool, and handling controls that hold up in the field.
Why asphalt shingles needs its own AHA
Asphalt shingles is the installation of asphalt-shingle roofing — the asphalt/composition shingles installed on sloped roofs (underlayment, starter course, field shingles, hip/ridge) as a steep-slope roofing system. This heads the steep-slope roofing group. The defining feature is steep-slope roof work, where the fall hazard is dominant and distinct from low-slope roofing: workers are on a pitched/sloped surface (a slip-and-slide-off hazard as well as an edge-fall hazard), so fall protection on the steep slope is the central concern, along with the nail gun (pneumatic roofing nailers — a serious puncture hazard) and the material handling and roof heat. The hazards combine the steep-slope-roof-fall (working on the pitched roof — the fall hazard (slope slip-off, eave/edge falls, and falls through/off the roof)), the nail-gun and tool (the pneumatic roofing nailer and tools — the nail-gun puncture and tool hazards), the material-handling and heat (handling the shingle bundles and the roof heat — the handling and heat-stress hazards), and the eye. The steep-slope-roof-fall and the nail-gun/tool justify a dedicated AHA.
Breaking asphalt shingles into steps
The steps for an Asphalt Shingles AHA follow the work:
- Assess the roof (slope, edges, access, weather)
- Set up steep-slope fall protection and safe roof access
- Load and stage the shingle bundles (handling, roof loading)
- Install underlayment and starter course
- Nail the field shingles (nail gun)
- Install hip/ridge and detail
- Manage the fall, nail-gun, and heat hazards
- Complete
Each step carries a hazard, and the steep-slope-roof-fall, the nail-gun/tool, and the material-handling/heat are where the most significant risks concentrate.
The hazards step by step
Steep-slope-roof-fall
Working on the pitched roof — the fall hazard (slope slip-off, eave/edge falls, and falls through/off the roof). The controls are steep-slope fall protection (asphalt shingles are installed on sloped/pitched roofs, where the fall hazard is dominant and specific: the sloped surface itself is a slip-and-slide-off hazard (a worker can slip and slide down and off the roof), plus the eave/edge and any openings, so fall protection appropriate to steep- slope roofing (personal fall arrest with properly anchored lifelines, roof brackets/jacks and toe boards on steeper slopes, guardrails/warning systems as applicable), safe roof access (ladders per the ladder requirements, roof access setup), and slip-resistant footwear/traction), and the fall controls. The steep-slope-roof-fall is the primary defining hazard — pitched-roof work has the slope slip-off hazard plus edge falls. (These follow the steep-slope fall-protection fundamentals.)
Nail-gun and tool
The pneumatic roofing nailer and tools — the nail-gun puncture and tool hazards. The controls are nail-gun and tool controls (asphalt shingles are fastened with pneumatic roofing nailers, which are a serious puncture hazard (nail-gun injuries — nails driven into hands/feet/body, especially with contact/bump-fire triggers) — so safe nail-gun use (sequential trigger where appropriate, keeping the non-firing hand clear, not bypassing safety devices, disconnecting air before clearing jams), and the utility-knife cutting of shingles (cut hazard)), and the nail-gun/tool controls. The nail-gun/tool is a defining hazard — roofing nailers cause serious puncture injuries. (These follow the nail-gun fundamentals.)
Material-handling and heat
Handling the shingle bundles and the roof heat — the handling and heat-stress hazards. The controls are material- handling and heat controls (asphalt shingle bundles are heavy (manual handling and getting them onto the roof — the handling/lifting hazard, and roof loading/staging so bundles are distributed and secured, not concentrated or sliding), and roof work is hot (the roof surface and sun — heat stress, so hydration, breaks, and heat-stress management, and the shingles/asphalt get hot)), and the handling/heat controls. The material-handling/heat is a defining hazard. (These follow the material-handling and heat-stress fundamentals.)
Eye
The eye (shingle cutting, nail-gun debris, roofing granules) carries the eye hazard. The controls are eye protection (shingle cutting, nail-gun debris, and roofing granules/dust), and the eye controls. (These follow the eye-protection fundamentals.)
A simple Asphalt Shingles AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Assess | Fall | Assess the roof (slope, edges, access, weather) | project |
| Fall protection | Fall | Set up steep-slope fall protection and safe roof access | OSHA 1926.501 |
| Load | Strain | Load and stage the shingle bundles (handling, roof loading) | project |
| Underlayment | Fall | Install underlayment and starter course | project |
| Nail shingles | Puncture | Nail the field shingles (nail gun) | OSHA 1926.302 |
| Ridge | Fall | Install hip/ridge and detail | project |
Steep-slope fall protection and nail-gun/tool control
An Asphalt Shingles AHA centers on steep-slope fall protection and nail-gun/tool control. The steep-slope fall protection addresses the pitched-roof work — controlled by steep-slope fall protection (personal fall arrest, roof brackets/jacks and toe boards, safe access, slip-resistant footwear). The nail-gun/tool control addresses the roofing nailer — controlled by nail-gun and tool controls (safe nail-gun use, keeping the non-firing hand clear, safe cutting). And the handling, heat, and eye get handling/heat and eye controls. An AHA built on steep-slope fall protection and nail-gun/tool control, with handling/heat controls, addresses the hazards that define asphalt shingles.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, asphalt shingles installs asphalt/ composition shingle roofing on sloped roofs, and it heads the steep-slope roofing group with the hazard that defines all steep-slope roofing: the fall. The steep-slope-roof-fall hazard is the primary defining concern — asphalt shingles are installed on sloped/pitched roofs, where the fall hazard is dominant and specific in a way that low-slope roofing is not: the sloped surface itself is a slip-and-slide-off hazard (a worker who slips can slide down and off the roof, not just trip near an edge), plus the eave/edge and any roof openings, so fall protection appropriate to steep-slope roofing is central — personal fall arrest with properly anchored lifelines, roof brackets/jacks and toe boards on steeper slopes to give footing and catch a slide, guardrails or warning systems as applicable, safe roof access (ladders per the ladder requirements, roof access setup), and slip- resistant footwear for traction on the slope. The steep-slope fall, with its slip-off character, is the defining hazard.
The nail-gun/tool and the material-handling/heat are the other defining hazards. On the projects I have run, asphalt shingles are fastened with pneumatic roofing nailers, which are a serious puncture hazard — nail-gun injuries (nails driven into hands, feet, or body) are among the most common serious roofing injuries, especially with contact/bump-fire triggers, so safe nail-gun use matters (using the sequential trigger where appropriate, keeping the non-firing hand clear of the firing path, not bypassing safety devices, and disconnecting the air before clearing jams), along with the utility-knife cutting of shingles. And the material-handling/heat hazard is that asphalt shingle bundles are heavy (manual handling and getting them onto the roof, plus roof loading and staging so bundles are distributed and secured rather than concentrated or sliding) and roof work is hot (the roof surface and sun cause heat stress — hydration, breaks, and heat-stress management — and the shingles and asphalt get hot). The eye hazard rounds it out. The AHA built on steep-slope fall protection and nail-gun/tool control is the one that protects the shingle crew.
The bottom line
An Asphalt Shingles AHA names the steep-slope-roof-fall, the nail-gun/tool, and the material-handling/heat hazards with specific controls — steep-slope fall protection (personal fall arrest with anchored lifelines, roof brackets/ jacks and toe boards, safe access, slip-resistant footwear), nail-gun and tool controls (safe nail-gun use, keeping the non-firing hand clear, safe cutting), and material-handling and heat controls (safe bundle handling and roof loading, heat-stress management). The steep-slope fall protection and the nail-gun/tool control are the defining concerns. The AHA that manages both is the one that protects the crew.
Frequently asked questions
Why is the steep-slope fall the dominant hazard?
Asphalt shingles are installed on sloped/pitched roofs, where the fall hazard is dominant and specific: the sloped surface itself is a slip-and-slide-off hazard (a worker who slips can slide down and off the roof), plus the eave/edge and openings. Controls are steep-slope fall protection (personal fall arrest with properly anchored lifelines, roof brackets/jacks and toe boards on steeper slopes, guardrails/warning systems as applicable, safe roof access, slip-resistant footwear), and the fall controls.
Why is the nail gun a serious hazard?
Asphalt shingles are fastened with pneumatic roofing nailers, which cause serious puncture injuries (nails driven into hands, feet, or body), especially with contact/bump-fire triggers — among the most common serious roofing injuries. Controls are nail-gun and tool controls (safe nail-gun use — sequential trigger where appropriate, keeping the non-firing hand clear, not bypassing safety devices, disconnecting air before clearing jams; safe utility-knife cutting), and the nail-gun/tool controls.
What handling and heat hazards apply?
Asphalt shingle bundles are heavy (manual handling and getting them onto the roof, plus roof loading/staging), and roof work is hot (roof surface and sun — heat stress). Controls are material-handling and heat controls (safe bundle handling and roof loading with bundles distributed/secured, heat-stress management — hydration, breaks), and the handling/heat controls.
What is asphalt shingles?
Asphalt shingles is the installation of asphalt-shingle roofing — the asphalt/composition shingles installed on sloped roofs (underlayment, starter course, field shingles, hip/ridge) as a steep-slope roofing system. Because steep-slope roofs have the dominant slip-off/edge fall hazard, the pneumatic roofing nailer is a serious puncture hazard, and the bundles are heavy in hot roof conditions, those hazards apply.
Related AHAs and JHAs
- Slate Shingles AHA — the related slate-shingle roofing
- Roof Tiles AHA — the related roof-tile roofing
- Preparation for Re-Roofing AHA — the re-roofing preparation
- Roof Work JHA — the roof-work 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.