Well, the simple answer is ‘when the door closer isn’t working’.
If a door closer has been damaged by vandalism or tampering, the fire door will not perform the function for which it is designed and specified, namely keeping the door closed.
Renowned for its ability to assure a clean, unhindered appearance to doors and interiors, Samuel Heath’s Powermatic controlled, concealed door closer is also used extensively in flats, apartments, hotels and social housing projects thanks to the safety, reliability and low maintenance benefits that the door closer delivers
Unlike surface-mounted door closers, Powermatic is completely concealed when the door is closed, and not easily visible when open. This can significantly reduce the opportunity for the door closer to be vandalised, tampered with or removed.
Together with maintenance-free service and closing speed and latching action which can be adjusted without removal from the door, this can result in a reduced maintenance burden for building owners and managers.
From a performance perspective, Powermatic boasts third-party certification together with a plethora of national and European technical performance accreditations. These include UKCA and CE marking, fire testing on half-hour and one-hour fire doors to BS EN 1634, opening forces that comply with BS8300 and the ability to enable doors to meet the requirements of Approved Document M. It is also the only Certifire jamb-mounted door closer.