Escape ladders sit outside the normal fire safety approach, which is to provide a protected route people can walk down. They appear where that route does not exist or cannot be relied on, and the honest position is that they are a last resort with real limitations rather than an alternative to a proper escape strategy.
What the building should have instead
Building Regulations guidance provides for escape by protected stairways and by openable windows in some circumstances, not by ladders. If a building relies on a ladder for escape, the question the fire risk assessment has to answer is why the normal means of escape is inadequate and whether that can be fixed. A ladder is rarely the cheapest answer once that question is asked honestly.
Who can actually use one
Climbing out of a window onto a ladder, in the dark, in smoke, possibly carrying a child, is beyond many people and effectively impossible for some. A means of escape that a proportion of occupants cannot use is not a means of escape for them. That is the central limitation, and it applies to fixed external ladders and portable hook over ladders alike.
Fixed external escape stairs
Where an external escape route is genuinely required, an external escape stair rather than a ladder is the normal solution, designed with the protection, guarding and fire separation from the building that the guidance sets out. External stairs bring their own issues, chiefly weather, security and the need for the openings near them to be fire resisting, and those are design questions rather than product questions.
Smoke hoods
A fire escape hood is a filtering device intended to give a person a few minutes of breathable air while leaving. They are used by some fire and rescue services as rescue equipment and are sold to households. They are not a means of escape, they do not provide oxygen, and they have a limited service life. Treating one as a reason to delay leaving is the misuse to avoid.
Questions people ask about fire escape ladder
Are fire escape ladders required by law?
No. Building Regulations guidance provides for escape by protected stairways and, in some cases, openable windows. A ladder is a last resort that a fire risk assessment would normally try to design out.
Are escape ladders a good idea for a house?
They are better than nothing in a house with a genuinely inadequate escape route, but many people cannot use one in the dark and in smoke. Working interlinked alarms and a practised plan protect far more households.
Does a fire escape hood help?
It filters some combustion products for a short period. It supplies no oxygen, has a limited life, and is not a means of escape. It should never be a reason to delay leaving.