Refurbishment and Restore Issue 21 2020 | Page 55

ROOFING & CLADDING SIKA SARNAFIL EXPLOSIVE SUCCESS FOR ROYAL GUNPOWDER MILLS HERITAGE ROOF REFURBISHMENT The high-quality roofing system was chosen after the project’s main contractors Courtenay Builders Limited were impressed with the results from similar Sika Sarnafil projects. They also entrusted Contour Roofing with the specification and installation after seeing its award-winning track record with Sika Sarnafil. The Royal Gunpowder Mills heritage site had Sika Sarnafil products installed to guarantee a stunning aesthetic and durable roofing solution. A historic and archaeological treasure, the Royal Gunpowder Mills heritage site in Waltham Abbey, Essex, has been given a new lease of life with a stunning and sympathetic roof refurbishment. ü low maintenance The ideal low maintenance, rot-free alternative to traditional cladding material that will give your home a timeless facade. ü factory applied colour ü easy to install more at cedral.co.uk ‘Aluprof Unitised Systems Transforms Existing Belfast Building’ Cedral refurb ad v3.indd 1 Consisting of listed buildings, ancient monuments and natural aspect features, the site is a well-loved attraction. A busy hub of activity, it attracts thousands of visitors every year, with exhibitions and a programme of hands-on activities for school groups. With previous roof coverings across the site’s buildings close to derelict, a new roofing system was needed that would both guarantee a durable solution and fit with the aesthetic of the heritage buildings. To meet those needs, Sika Sarnafil G410-15EL FSA Lead Grey was specified alongside Sarnavap 1000E air and vapour control layer. As a site once home to tonnes of explosives and with visitors in throughout the refurbishment, the project proved challenging, requiring extensive attention to health and safety. A strict ban on naked flames and hot works meant that the plywood boards had to be primed immediately after installation and before exposure to any wet weather. The specification therefore considered this and the original system, which would have needed a completely dry substrate, was switched to a loose laid polyethylene air and vapour control layer that was more equipped for a faster installation in the expected conditions. Securing a 20-year Sarnafil guarantee, the newly refurbished roofs have not only met the client’s need for a stunning aesthetic, but have also provided a durable weatherproof roofing system – upholding the heritage charity’s mission to conserve the site for the benefit of the general public. gbr.sarnafil.sika.com 29/01/2019 16:22 Unitised curtain wall is normally associated with new high rise building, but in Belfast, Aluprof systems are being used to help transform an existing office block with a completely new building envelope. Located at Wellington Place in the heart of Belfast, the Merchant Square Office Development will offer over 200,000 sq.ft. of Grade A office accommodation. The existing seven storey office block was designed by McAlister Armstrong & Partners and completed in 1975. The new £18.5 million redevelopment will add two further floors and will consist of a new Corten steel and aluminium high performance facade. The external envelope was originally specified in traditional stick construction curtain wall, but Clarke Facades worked with Aluprof to put forward a superior offer using a unitised option. Crucial to this specification change with Like Architects of Belfast and their client, the Oakland Group, is that the proposal had to fall within the original facade budget. This was achieved using Aluprof’s MB-SE75 Capped Unitised Curtain Wall system. With the rise in use of unitised curtain wall systems in medium sized projects, the option of unitised systems is becoming a real alternative to a traditional curtain wall, especially as costs are becoming much more competitive. It is well known that unitised systems can offer up to a 50% time saving on installation which can offer significant savings on the project programme. Aluprof’s MB-SE75 Capped Unitised Curtain Wall system was then specified in an anodised finish, which then contrasts in accordance with the architects design, with the external Corten steel used in a vertical column emphasis. Facade installation started in early March and is expected to be completed in a matter of weeks, ensuring that the building envelope meets the tight installation programme. www.aluprof.co.uk Durable, compliant and guaranteed flat roofing and waterproofing system Langley Waterproofing System Ltd’s TA-30 Flat Roofing System is a premium quality and durable solution for the commercial, education, healthcare and housing sectors, suitable for both new build and refurbishment projects. It is compliant to the highest fire rating classification; Broof(t4) and has been extensively tested with varying insulation types, thicknesses and roof decks, for a system that is compliant yet versatile, to suit the client’s requirement. This has been independently tested by the BBA (British Board of Agrément) and further certified by LABC with LABC Assured accreditation. The system is only installed by Langley’s vetted Approved Contractor network to ensure a high quality installation. Once installed, it carries an independent insurance-backed guarantee of 30 years for materials, design and workmanship. It is a long-term solution with a life expectancy of at least 40 years. This system is also available as a BIM object on the NBS BIM library. E: [email protected] W: https://bit.ly/3bMgfub www.refurbandrestore.co.uk - 55