A ladder hook is a hook fitted to the top end of a ladder that grips over the ridge or onto a roof anchor, so the ladder cannot slide down or tip sideways on a pitched roof. The hook secures the ladder at the only point where that is possible on a roof slope: the top.

Do not confuse it with a roof anchor (or safety roof hook), which is fixed to the roof structure itself and provides a point from which a ladder or a fall arrest system can be hung.

Types

Using it safely

  1. Roll the ladder up on its wheels — place the hook wheels-down on the tiles, push it up, and only turn it over the ridge once the hook has cleared it
  2. Check the ridge tile — a loose or cracked ridge tile carries nothing. If the ridge is only bedded in mortar and is already old, choose another arrangement
  3. Secure the foot as well — the hook prevents sliding at the top, not the ladder swinging at the bottom
  4. Spread the load — never walk directly on the tiles; use a roof ladder or a crawl board, otherwise tiles break and the structure beneath is damaged
  5. Do not treat the hook as your only protection — for roof work at height, a scaffold with edge protection or a personal fall arrest system with a sound anchor point remains the standard

When a ladder hook is not enough

If you are working on the roof for more than a short spell, or the roof slope is more than a few metres up, a ladder with a hook is not an adequate working place. In that case use a mobile tower, a scaffold with edge protection, or a powered access platform. For work on a chimney or a dormer at height that is in practice almost always the safest and quickest choice.

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