Two-handed restrictor
Our two-handed operation window restrictor is designed to avoid accidental disengaging. There are no keys required for this restrictor and the device automatically re-engages when the window is closed. The added feature of green button enhancement signifies a fire exit. This restrictor fits inline with your friction hinges and also incorporates a run-up block to bring the opening window in line with the frame when closing.
With the restrictor fitted between the frames there are no unsightly attachments to be seen on the main surfaces of the window.
To disengage, simply slide the green buttons to the side.
Technical: The restrictors are tested to 50,000 cycles and resist an impact of 600N outward force.
Spring Loaded Restrictor
A simple spring loaded window restrictor that if fitted correctly will re-locate to its restricted position each time the window is closed. To disengage the catch, to open the window fully, just requires a simple ‘flick’ of the restrictor arm. With the restrictor fitted between the frames there are no unsightly attachments to be seen on the main window surfaces. Can be used on aluminium, PVC or timber windows.
Technical: Resists an impact of 600N outward force.
Safety Regulations
Posted by Belkin in law, regulations, window catch, window latch, window restrictor 
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Q: Are window restrictors permitted under fire safety regulations?
A: Escape windows from dwellings are an important secondary means of escape from bedrooms in the event of fire. Minimum dimensions were revised in under Part B (Fire Safety) building code in 2006 to require an unobstructed opening area of at least 0.33m2, with a minimum width and height of 450mm.
In the amended regulations the fitting of restrictors is recommended to restrict the initial opening of escape windows, in the interest of child safety, as recommended by the National Safety Council.
To comply with the code our window safety restrictors limit the initial opening of the window to 100mm such that exit cannot be gained by small children.
NB: Under section 1.5.6 (e) of the regulations the use of locking mechanisms is prohibited.
“Lockable handles or restrictors, which can only be released by removable keys or other tools, should not be fitted to window opening sections.”
Frequently Asked Questions
Posted by Belkin in law, regulations, window catch, window latch, window restrictor Comments Off 4
Q: Are window safety restrictors permitted under building regulations?
A: Yes. In fact they are recommended. Learn more about this on our fire safety page.
Q: Will they affect my house insurance?
A: We do not know of any insurer that has an issue with window restrictors. Most would welcome that they are fitted where small children are present.
Q: Are they easy open in an emergency?
A: Yes. However we advise that home owners familiarise themselves with their use. Remember to make your guests aware of them also.
Q: My child is very bright. Will she will figure out how to open them?
A: The spring loaded window safety latch requires a level of dexterity beyond the ability of most small children. The two-handed one requires both dexterity and a degree of strength. So, no, it is highly unlikely.
Q: Which is better? Spring loaded or two-handed?
A: That depends on your preferences and circumstances. Our fitters will be happy to advise you.
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