That guidance requires a minimum of 1 20thfloor area of the room served in openable window height x width of opening part where the window opens 30 degrees or more.
Window opening restrictor regulations.
Check the packaging on the locks or contact the seller or manufacturer for more information.
Safety restrictors should restrain the window sufficiently to prevent such falls.
A screen pop riveted to the window frame so it cannot be unlocked overridden or is very difficult to remove without for example a drill.
When replacing any window the opening should be sized to provide at least the same potential for escape as the window it replaces.
If the original window that is being replaced was larger than necessary for the purpose of escape then the new window opening could be reduced down to the minimum as specified in the criteria below.
However if you do require window restrictors the hse advise that windows that are large enough to allow people to fall out should be restrained sufficiently to prevent such falls.
Access may need to be restricted to balconies that are not.
In order to ensure fire safety provision must be made to allow emergency escape via a window or door in habitable rooms.
All educational establishments especially those that cater to children for safety reasons must restrict the opening of a window to no greater than a 100mm.
Where the window opens between 15 and 30 degrees that area needs to be doubled i e.
The opening should be restricted to 100 mm or less.
Besides restricting the window from opening more than 12 5 cm or more the device must also be able to withstand a force equal to 25 kilograms.
1 10thfloor area of room served.
Do i need a certified professional to install the window safety device.
In dwellings where a window has an opening section through which a person may fall having particular regard to children under five years old and is more than 1400 mm above external ground level suitable safety restrictors should be provided.
The opening should be restricted to 100 mm or less.
To comply the window should have an unobstructed openable area that at least 0 33mm2 and at least 450mm high and or wide.
Window restrictors should only be able to be disengaged using a special tool or key.
Part f ventilation.
A window restrictor is purely to reduce the risk of falling out of a window.
Window openings more than 1 7m off the floor do not need to be restricted unless their construction contains a sill or a transom that is located between 150mm 750mm from the floor which constitutes a climbable zone for a child.