Roof Tiles AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
A Roof Tiles AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew installing roof tiles safe from the steep-slope roof fall, from the heavy tile handling and load, and around the tile cutting dust and breakage. Roof tiles installs roof-tile roofing — combining the steep-slope-roof-fall hazard, the heavy-tile- handling and load hazard, and the tile-cutting-dust and breakage hazard. This guide walks through building a Roof Tiles AHA that names the steep-slope-roof-fall, heavy-tile-handling/load, and tile-cutting-dust/breakage hazards and assigns the fall, handling/load, and cutting controls that hold up in the field.
Why roof tiles needs its own AHA
Roof tiles is the installation of roof-tile roofing — the roof tiles (concrete tiles, clay tiles, and similar heavy tile roofing) installed on sloped roofs as a heavy, durable steep-slope roofing. This continues the steep- slope roofing group, focused on tile. The defining feature is the same steep-slope fall hazard, sharpened by the heavy tile: roof tiles (concrete or clay) are heavy (a significant handling and roof-load concern, like slate), brittle (breakage and sharp broken edges), and cutting them generates dust (concrete/clay tile dust — a silica- dust concern). The hazards combine the steep-slope-roof-fall (working on the pitched roof — the fall hazard, sharpened by the heavy tiles and slippery tile surface), the heavy-tile-handling and load (handling the heavy tiles and the roof load — the handling and structural-load hazards), the tile-cutting-dust and breakage (cutting the tiles and the tile breakage — the silica-dust and breakage hazards), and the eye. The steep-slope-roof-fall and the heavy-tile-handling/load justify a dedicated AHA.
Breaking roof tiles into steps
The steps for a Roof Tiles AHA follow the work:
- Assess the roof (slope, load capacity, access)
- Set up steep-slope fall protection and safe roof access
- Load and stage the heavy tiles (roof-load distribution)
- Cut the tiles as needed (silica dust)
- Install and fasten the roof tiles
- Manage the fall, load, and dust/breakage hazards
- Complete
Each step carries a hazard, and the steep-slope-roof-fall, the heavy-tile-handling/load, and the tile-cutting- dust/breakage are where the most significant risks concentrate.
The hazards step by step
Steep-slope-roof-fall
Working on the pitched roof — the fall hazard, sharpened by the heavy tiles and slippery tile surface. The controls are steep-slope fall protection (roof tiles are installed on sloped/pitched roofs — the fall hazard is dominant (slope slip-off, eave/edge falls), sharpened because the tiles are heavy (handling heavy material on a slope) and the tile surface can be slippery (especially when wet), so fall protection appropriate to steep-slope roofing (personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards, staging), safe roof access, and slip-resistant footwear), and the fall controls. The steep-slope-roof-fall is the primary defining hazard — pitched-roof work, sharpened by heavy/slippery tiles. (These follow the steep-slope fall-protection fundamentals.)
Heavy-tile-handling and load
Handling the heavy tiles and the roof load — the handling and structural-load hazards. The controls are heavy-tile- handling and load controls (roof tiles (concrete or clay) are heavy (a significant manual-handling hazard getting the heavy tiles onto and around the roof — an ergonomic/lifting concern), and the roof load is a concern (the concentrated weight of staged tiles must be distributed and the structure must support the heavy tile roof), so safe lifting/handling of the heavy tiles, mechanical assistance/hoisting where possible, and roof-load management/ distribution so staged tiles are not concentrated), and the handling/load controls. The heavy-tile-handling/load is a defining hazard — tiles are heavy, a handling and roof-load concern. (These follow the material-handling and structural-load fundamentals.)
Tile-cutting-dust and breakage
Cutting the tiles and the tile breakage — the silica-dust and breakage hazards. The controls are tile-cutting-dust and breakage controls (cutting concrete or clay roof tiles generates dust containing crystalline silica (concrete and clay tiles are silica-containing — a silica-dust inhalation hazard), so silica dust controls (wet cutting or dust extraction where power-cutting, respiratory protection appropriate to silica), and the tile breakage (tiles are brittle — broken tiles create sharp edges and falling-tile hazards, and a broken tile underfoot is a slip/trip hazard — handling to minimize breakage, cleanup of broken tiles)), and the cutting-dust/breakage controls. The tile-cutting-dust/breakage is a defining hazard — cutting tiles is a silica-dust hazard and tiles are brittle. (These follow the silica and material fundamentals.)
Eye
The eye (tile dust, chips, breakage) carries the eye hazard. The controls are eye protection (tile cutting dust, flying tile chips, and breakage debris), and the eye controls. (These follow the eye-protection fundamentals.)
A simple Roof Tiles AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Assess | Fall / load | Assess the roof (slope, load capacity, access) | project |
| Fall protection | Fall | Set up steep-slope fall protection and safe roof access | OSHA 1926.501 |
| Load | Strain / load | Load and stage the heavy tiles (roof-load distribution) | project |
| Cut | Silica | Cut the tiles as needed (silica dust) | OSHA 1926.1153 |
| Install | Fall | Install and fasten the roof tiles | project |
| Manage | Fall / dust | Manage the fall, load, and dust/breakage hazards | project |
Steep-slope fall protection and heavy-tile-handling/load control
A Roof Tiles AHA centers on steep-slope fall protection and heavy-tile-handling/load 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 heavy-tile-handling/load control addresses the heavy tiles — controlled by heavy-tile-handling and load controls (safe lifting, mechanical assistance, roof-load distribution). And the cutting dust, breakage, and eye get cutting-dust/breakage and eye controls. An AHA built on steep-slope fall protection and heavy-tile-handling/load control, with cutting-dust controls, addresses the hazards that define roof tiles.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, roof tiles installs heavy tile roofing (concrete or clay tiles) on sloped roofs, and its hazards are the steep-slope roofing profile sharpened by the heavy tile — closely paralleling slate. The steep-slope-roof-fall hazard is a primary defining concern — roof tiles are installed on sloped/pitched roofs, where the fall hazard is dominant (slope slip-off, eave/edge falls), sharpened because the tiles are heavy (handling heavy material on a slope) and the tile surface can be slippery (especially when wet), so fall protection appropriate to steep-slope roofing (personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards, staging), safe roof access, and slip-resistant footwear are central. The steep-slope fall is the defining hazard.
The heavy-tile-handling/load and the tile-cutting-dust/breakage are the other defining hazards. On the projects I have run, roof tiles (concrete or clay) are heavy, so there is a significant manual-handling hazard getting the heavy tiles onto and around the roof (an ergonomic and lifting concern), and the roof load is a real concern (the concentrated weight of staged tiles must be distributed, and the structure must support the heavy tile roof), so safe lifting and handling, mechanical assistance or hoisting where possible, and roof-load management matter. And the tile-cutting-dust/breakage hazard is that cutting concrete or clay roof tiles generates dust containing crystalline silica (both concrete and clay tiles are silica-containing — a silica-dust inhalation hazard), so silica dust controls (wet cutting or dust extraction where power-cutting, respiratory protection appropriate to silica) apply, along with the tile breakage (tiles are brittle — broken tiles create sharp edges and falling/ sliding-tile hazards, and a broken tile underfoot is a slip/trip hazard). The eye hazard from tile dust and chips rounds it out. The AHA built on steep-slope fall protection and heavy-tile-handling/load control is the one that protects the roof-tile crew.
The bottom line
A Roof Tiles AHA names the steep-slope-roof-fall, the heavy-tile-handling/load, and the tile-cutting-dust/breakage hazards with specific controls — steep-slope fall protection (personal fall arrest, roof brackets/jacks and toe boards, safe access, slip-resistant footwear), heavy-tile-handling and load controls (safe lifting, mechanical assistance, roof-load distribution for the heavy tiles), and tile-cutting-dust and breakage controls (silica dust controls — wet cutting/dust extraction and respiratory protection, breakage management). The steep-slope fall protection and the heavy-tile-handling/load 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?
Roof tiles are installed on sloped/pitched roofs (dominant slope slip-off and eave/edge fall hazard), sharpened because the tiles are heavy (handling heavy material on a slope) and the tile surface can be slippery (especially when wet). Controls are steep-slope fall protection (personal fall arrest with anchored lifelines, roof brackets/jacks and toe boards, staging, safe access, slip-resistant footwear), and the fall controls.
Why is heavy-tile handling and load a defining hazard?
Roof tiles (concrete or clay) are heavy, so there is a significant manual-handling/lifting hazard getting them onto and around the roof, and the roof load is a concern (concentrated staged weight must be distributed, and the structure must support the heavy tile roof). Controls are heavy-tile-handling and load controls (safe lifting, mechanical assistance/hoisting where possible, roof-load distribution), and the handling/load controls.
Why is cutting tiles a silica-dust and breakage hazard?
Cutting concrete or clay roof tiles generates dust containing crystalline silica (both are silica-containing — a silica-dust inhalation hazard), and tiles are brittle (broken tiles create sharp edges, falling/sliding-tile hazards, and slip/trip hazards underfoot). Controls are tile-cutting-dust and breakage controls (silica dust controls — wet cutting or dust extraction, respiratory protection; breakage management and cleanup), and the cutting-dust/breakage controls.
What is roof tiles?
Roof tiles is the installation of roof-tile roofing — the roof tiles (concrete tiles, clay tiles, and similar heavy tile roofing) installed on sloped roofs as a heavy, durable steep-slope roofing. Because steep-slope roofs have the dominant fall hazard (sharpened by heavy/slippery tiles), the tiles are heavy (handling and roof load), and cutting them generates silica dust with breakage, those hazards apply.
Related AHAs and JHAs
- Clay Roof Tiles AHA — the clay-tile roofing
- Slate Shingles AHA — the related slate roofing
- Asphalt Shingles AHA — the related asphalt-shingle roofing
- 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.