Window restrictors can help you to meet legal requirements to reduce the risk of falling from a window they work by preventing a window from opening far enough for a person to fall through.
Window opening restrictors.
Hello chippingmark the opening gap is the distance from the edge of the frame to the inner edge of the window and can be adjusted dependant on where the restrictor is mounted.
Window restrictors allow the opening of a window to be restricted which is useful from both a security view point and the safety of residents within a property particularly children.
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A window child lock restrictor is purely to reduce the risk of falling out of a window.
This is to prevent someone either entering or exiting and the opening gap is typically 10 cm.
They allow a window to be partially opened for ventilation purposes whilst preventing it being opened wide enough for a person to climb through.
We have a wide range of features incorporated into our products including egress restrictors key locking upvc window restrictors and cable window restrictors.
Ebay lists a vast array of devices which can be simply fitted to suit all windows.
100mm is the industry standard fit as it is estimated that a baby could not fit through a 100mm opening and fall out the window.
Typically sash restrictors are fitted 100mm above the mid rail so that the window can only be opened by 100mm.