Maintenance & Refurbishment
Doors, Windows & Glazing Feature
• Does the supplier have test reports or figures to back of their claims of performance? With noise it is best to check the sample size tested. If relatively small, it is likely to pass a test, however it may not perform well when used in a large opening. With security, test certificates may be required by insurers
• How are the frames fixed? Ideally you want the secondary glazing fixed to a discreet timber sub frame as this will ensure all gaps that air can pass through are closed providing maximum benefit
• Operation of sliding sashes – does the secondary glazing allow full access to the primary windows when opened? Best practice is to install a system which
facilitates this to ensure the original windows can be easily reached for future maintenance and cleaning
• Can a sample be provided to see how it looks aesthetically? These will often be corner samples or carry size samples, which can be sat in the reveal to show the size of the sections and give an idea of the sightlines
• Do the systems need to be removed in summer months? If so, you then have the added issue of finding storage.
Zoe Williams is head of marketing at Selectaglaze Profile 22 transform housing project Door closer’s fire credentials enhanced
Samuel Heath’s commitment to ensuring that its Powermatic controlled, concealed door closers provide the ultimate assurance in quality and performance has been further underlined with the successful completion of additional full-sized fire testing on both timber and steel fire doors at renowned testing laboratory, Exova Warrington Fire. 30-minute testing in accordance with BS EN 1634-1 was undertaken on a timber fire door constructed with a Halspan core to replace Powermatic’s current small-scale indicative testing for the BS476 assessment. The door set easily achieved the 30-minute test requirements, continuing until final failure occurred at 42 minutes. Significantly, where most timber door fire tests fail due to failure of the hinge/timber joint, which causes the door to drop and intumescent seal to break at the top of the door, Powermatic was actually shown to hold the door in place after the hinge/timber joint failure. This is attributed to the design, strength and location of Powermatic, which fits in a similar position to hinges, between the door and door frame. The uninsulated steel door passed the four- hour test comfortably. As a result, the test evidence will allow certification to cover both insulated and non-insulated doors at any fire rating up to and including four hours.
0121 766 4200
www.concealeddoorclosers.com 46 | HMM August/September 2019 |
www.housingmmonline.co.uk
Profile 22 Fully Reversible Windows were specified in the refurbishment of 15 tower blocks in Bristol. The legacy PVC-U windows, doors and curtain walling at 15 high and low-rise blocks needed to be replaced to improve thermal efficiency, security and aesthetics. An experienced company was required to carry out the complex, high profile, multi-phase works. The contract was awarded to longstanding Profile 22 Approved Window Manufacturer Emplas Window Systems, who recommended Profile 22’s Optima system. The Optima system provides high security locking, child resistant safety catches and achieves a weather performance of 2400pa for wind, 1500pa for water and 600pa for air.
www.profile22.co.uk Senior’s PURe® range moves forward
Senior Architectural Systems has added further flexibility to its innovative PURe® range of ultra-low U-value aluminium windows with the development of a new parallel push option. Designed to offer balanced air flow and ventilation with maximum safety, the restricted opening of the PURe® parallel push aluminium windows make them ideally suited to a wide range of sectors including education, healthcare, and high-rise commercial and residential developments. Benefitting from a patented thermal barrier manufactured from expanded polyurethane foam, the PURe® parallel push aluminium window, like the rest of the range, offers exceptional low U-values and high thermal performance.
www.seniorarchitectural.co.uk/architectural-systems/pure-window
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