Handles, catches and child safety

Top handle

Standard on centre pivot windows. The handle is at the top of the sash, which means it can be operated from a window set high in the roof, and it is out of reach of small children.

That second point is the reason many people choose centre pivot for a child’s bedroom.

Bottom handle

Standard on top hung windows. Easier to reach and more natural to use, which is the point of a top hung unit, and correspondingly reachable by a child.

Ventilation position

Most handles have an intermediate position holding the sash slightly open for background ventilation while remaining latched. It is a useful setting and worth being shown at handover, because plenty of people never discover it.

Restrictors

A restrictor limits how far the sash opens. On a bottom handle window in a child’s room it is worth fitting, and most manufacturers offer one designed for their unit.

Important caveat: a restrictor on an escape window must be the type that can be released quickly without a key, or it defeats the escape function. Fitting a keyed restrictor to an escape window creates a serious problem.

Locks

Lockable handles are available and are worth having on a ground floor or garage roof window that is genuinely accessible from outside.

The same caveat applies. On an escape window, a keyed lock has to be openable from inside without hunting for a key. In practice that means the key stays in it, which limits how much security it actually provides.

Replacement parts

Handles and catches wear and are replaceable. A stiff handle usually means the hinges want lubricating rather than the handle failing, and forcing a stiff window is what breaks handles.

Where the handle sits, and why it matters

On most pitched roof windows the handle is at the top of the sash. That is deliberate: it puts the operating point within reach of a pole from floor level, and on a centre pivot window it is where the balanced action wants it.

It has a second consequence that is rarely discussed at the point of sale. A handle at the top of a sash, in a room where the eaves are low, may be at a height a child can reach from a bed, a chair or a windowsill.

Some manufacturers offer a bottom mounted handle instead, which is easier for an adult to reach in a low room and, depending on the room layout, may be more or less accessible to a child. Neither position is inherently safer: what matters is the relationship between the handle and whatever a child can climb on.

That is worth looking at in the actual room rather than assuming.

The ventilation position, which is the useful safety feature

Almost every roof window has an intermediate setting: the handle turns to a position where the sash is held slightly open on a catch, providing ventilation without the window being free to swing.

The sash cannot be pushed further open from that position without releasing the catch, which requires operating the handle deliberately.

On a pitched roof window in a child’s bedroom that is the setting to use routinely. It gives you background ventilation, it keeps the window secure against a casual push, and it does not require any additional hardware.

The trickle ventilator at the top of the sash, behind a removable strip, does a similar job at a lower level: background ventilation with the window fully closed and locked.

Locks and restrictors

Key operated locks are available on many roof windows, either factory fitted or as an accessory. They are the definitive answer where a window must not be opened by a child, and the usual objection applies: a locked window in a room that needs escape provision is a locked escape route.

Opening restrictors limit how far the sash can travel while still allowing ventilation. On a roof window they are less common than on wall windows, and they exist.

Where a restrictor or a lock is fitted to a window that carries a means of escape duty, it has to be openable without a key by somebody in the room. That is not a preference, it is how the escape provision works, and it rules out a permanently key locked escape window.

Escape, and the tension with child safety

Worth setting out plainly, because the two requirements pull against each other and people frequently deal with one and forget the other.

In a habitable loft room, Building Regulations frequently require the roof window to serve as a means of escape. That brings a minimum clear openable area, minimum opening dimensions, and a maximum height of the bottom of the opening above the finished floor, so a person can reach it.

A window low enough and openable enough to serve as an escape route is, by definition, a window a child can reach and open.

There is no product that resolves that contradiction. What resolves it is the room: keeping climbable furniture away from beneath the window, using the ventilation catch position rather than leaving the sash free, and where the child is very young, considering whether that room is the right one for them.

What is not a solution is a key lock on an escape window with the key kept elsewhere.

Glass, which is the part nobody asks about

More relevant than the handle in most cases.

Most quality roof windows have a toughened outer pane and a laminated inner pane as standard. That combination is what you want: the outer pane resists impact from outside, and the laminated inner pane, if broken, holds together on its interlayer rather than falling into the room.

On a rooflight, which is overhead, that matters more than on a wall window. Glass falling downward into a room is a different proposition from glass falling outward onto a path.

Confirm the glazing specification rather than assuming. Where a quotation does not state it, ask, and specifically ask whether the inner pane is laminated.

Motorised windows and children

Two considerations, and one of them is genuinely useful.

Remotes and switches. A handheld remote is a toy to a small child, and a wall switch at adult height is not. That is an argument for the wall switch beside the light switches at the room entrance, which is where it belongs anyway.

Most systems allow a remote to be paired or unpaired, and app control can be restricted to particular users.

The mechanism itself. A chain actuator closes slowly and with limited force, and reputable systems include an obstruction detection that stops or reverses if the sash meets resistance. That is worth confirming for the specific model.

The useful part is that a motorised window with a rain sensor can be left closed and operated deliberately, rather than left ajar on a catch, which removes the question of a child pushing it further open.

Blinds and cords

The genuine hazard people forget, and it applies to blinds rather than to windows.

Looped cords and chains on internal blinds are a recognised strangulation risk for young children. Blinds sold for roof windows are generally designed with this in mind, and the safest arrangement in a child’s room is a blind with no accessible loop at all: a spring operated blind, a pole operated one, or a motorised blind with no cord.

Where a corded blind is fitted, a cleat or a breakaway device at height keeps the cord out of reach, and it needs to be used rather than installed and forgotten.

What to specify for a child’s room

Confirm whether the window carries the escape duty, because that constrains everything else.

A laminated inner pane, which most quality units have as standard.

Use of the ventilation catch position as the routine setting rather than leaving the sash free.

A blind with no accessible cord loop, ordered with the window so it fits the model exactly.

A wall switch rather than a remote, where the unit is motorised.

And a look at the room itself: what is under the window, what can be climbed on, and whether the handle is within reach from any of it. That last check takes a minute and it is worth more than any of the hardware.

The control bar, and where it sits

Most centre pivot roof windows have a control bar across the top of the sash. It operates the window and usually the ventilation flap as well.

Its position at the head is deliberate. It comes down towards you as the sash rotates, which makes a high window operable from the floor. It also puts the control out of reach of a small child, which on a first floor or loft window is a real benefit.

Top hung windows have the handle at the bottom of the sash, within easy reach, which is better for an adult standing at the window and worse where children are concerned.

Limiting the opening

A restrictor limits how far the sash opens, allowing ventilation without an aperture a child could get through.

Some are integral to the mechanism, engaging at a set position. Others are separate fittings added to the frame. Either way they should be positive rather than frictional, meaning they physically stop the sash rather than relying on stiffness.

Where a restrictor is fitted on an escape window, it has to be releasable from inside without a key or a tool, because a window that cannot be opened in an emergency is not an escape window.

That tension between child safety and escape is a real one and it is resolved by the type of restrictor rather than by choosing one requirement over the other.

The cleaning catch

The barrel bolt or catch that holds a rotated sash in the cleaning position is a safety device rather than a convenience.

A sash rotated for cleaning and not locked can swing back with your hands and head through the opening. Engaging the catch takes a second and it is not optional.

Teach anyone else in the house who might clean the window, because it is not obvious to somebody who has not been shown.

Locking

Many roof windows have a locking position on the handle, and some accept a keyed lock.

On a ground floor or accessible rooflight that is worth using. On a bedroom escape window, a keyed lock is a hazard unless the key lives in the window, which rather defeats it.

Powered units and children

A powered rooflight with a wall switch at a reachable height is operable by a child. Most systems allow a switch to be locked out, or the unit can be controlled only by handset.

Worth thinking about at commissioning rather than after it becomes a game.