074 RCI 0417

RCI April 2017

Zink FLAT ROOFING & WATERPROOFING 01992 801927 www.almhm.co.uk Caring for the community in County Down Rapid delivery at Waterside Development The CT&CC combines a range of health services from adult day care and community outpatient departments to therapy services for children, young people and mental health patients A top performance achieved at LIPA Contractor keeps quiet with Magply 074 APRIL 2017 RCIMAG.COM Copper Stainless Residents have been able to occupy a set of sustainable apartments at a new waterside housing development ahead of schedule, thanks in part to the quick installation of Sika- Trocal’s waterproofing roof system. To facilitate time-effective construction without compromising on quality, roofing sub-contractors Seeco specified Sika-Trocal Type S. It does not require a separate fastening system for the thermal insulation as the Sika-Trocal disc system utilises the same disc and fastener for securing the insulation and the waterproofing membrane, thus improving speed of install. Seeco applied the Type S system to a 3,000m² area consisting of flat and pitched roofs. The homogeneous single-ply sheet membrane contains ultra violet stabilisers and fire retardants and is highly resistant to ageing and industrial pollutants. After installation, the product requires no further surface treatments or maintenance throughout its service life. The high elasticity of Sika-Trocal S allows it to absorb all movements that occur on a roof without failing, and to reduce stress on fasteners from the dynamic forces of wind loads. To provide stronger support in areas such as roof balconies and terracing where foot traffic was potentially high, a sheet of waterproof Sika- Trocal SGmA was installed, followed by a layer of Sika-Trocal SFelt Type T polyester fleece for additional protection. A multi-layer, synthetic roof waterproofing sheet based on premium quality polyvinyl chloride (PVC), Sika-Trocal SGmA contains an inlay of non-woven glass fibres. As well as offering quality, longterm protection against physical stresses, SGmA – if covered with a minimum 50mm depth of gravel ballast – is deemed to achieve an FAA fire rating. Fully-installed, the system also offers a high degree of sound reduction. www.sika.co.uk The prestigious new Banbridge Community Treatment & Care Centre (CT&CC) in County Down, Northern Ireland, has an effective long-term waterproofing solution, after 2,500m² of Alumasc’s Hydrotech waterproofing systems, covered by an Intensive Alumasc Blackdown green roof and Derbigum, was installed on the roofs, balconies and terraces. Run by the Southern Health & Social Care Trust, Banbridge CT&CC in County Down, Northern Ireland, is part of the new £16m Banbridge Health & Care Centre, and combines a range of health services from adult day care and community outpatient departments to therapy services for children, young people and mental health patients. Approved local Alumasc installer Jameson Roofing Services was appointed to install 1,000m² of Alumasc Derbigum, with an extended warranty of 40 years, and 1,500m² of Alumasc Hydrotech waterproofing, which has an extended warranty of 50 years. After the concrete deck had been primed with bitumen, a layer of Euroroof Mastergold vapour barrier was applied and covered with Euroroof PU Insulation adhesive. 120mm Alumasc BGT Rigid Polyisocyanurate Insulation was then laid to achieve a target U-value of an average 0.20W/m²K before Mastergold underlay and finally the Derbigum Cap Sheet. Jameson Roofing then applied the Hydrotech hot melt waterproofing system, which comprised a Hydrotech MM6125 membrane incorporating a Hydrogard 40 protection sheet, onto which an intensive Alumasc Blackdown Green Roof was installed. www.alumascroofing.co.uk The world famous Liverpool Institute for Performing Arts (LIPA) has seen a major refurbishment and redevelopment contract carried out by Kier; with three different systems from Icopal’s range having been selected to ensure the old and new roof areas will remain fully protected from the city’s wet weather. The roofing works, which are now fully complete, were carried out by Liverpool-based member of Icopal’s national installer network Mac Roofing. The larger, high level of roof, over an existing office building, had some 600m² of Icopal Monarplan GF single ply membrane installed as a warm roof build-up. Then the lower, new-build section of the structure to house the new LIPA Sixth Form College was treated with Monarplan FM, while Parabit Solo hot melt was employed as part of an inverted roof build-up where heavy plant was to be installed. Icopal conducted a detailed survey of the existing roof; as well as tying this into a viable specification for the new-build work, to achieve a cost effective package for the entire scheme. Across the main roof, the Monarplan GF was fully bonded down across 140mm of board insulation and the vapour control layer. Then when it came to the plant room area of the lower roof, the specification arrived at a featured 225mm of EPS insulation and ballast as well as slabs, laid over the Parabit Solo hot melt, applied directly to the concrete deck. Mac Roofing’s team of operatives were involved on the LIPA project throughout the late spring and summer months of last year, concluding their work in 2016. The buildings have been completed and handed over to the famous education establishment to serve as the new LIPA Sixth Form College, which opened in September 2016. www.icopal.co.uk Colchester-based RT Roofing Services has been using Magply Recovery boards as part of a high specification build-up, which provided its operatives with a relatively quiet as well as safe means of carrying out re-roofing works to school classrooms during lesson times. While much maintenance work around school and college campuses has to be scheduled for the long summer holidays, the pressure this puts on the re-roofing works means some operations have to carry on during term time, as long as noise and disruption are kept to an absolute minimum. As a result, instead of scabbling smooth the old covering of asphalt and chippings on the Bishops Stortford buildings, RT Roofing proposed to simply sweep away any loose material and then begin the over-roofing with a layer of 6mm thick Magply, bonded down in hot bitumen. This then offered a sound flat surface on which to install a Langley built-up felt system. RT Roofing Services owner Richard Tebbutt commented: “At the Bishops Stortford School we wanted to avoid the noise and dust of scabbling the existing asphalt Magply carries internationally recognised accreditations confirming the boards’ ability to deliver fire resistance and insulation under test conditions surface and chippings, so instead the team just brushed off the loose material and thoroughly prepped the surface before bonding the Magply sheets down in hot bitumen. Because Magply is non-combustible, any excess bitumen can simply be burned off before the vapour barrier is installed as part of a Langley approved system.” As its contract at the Herts and Essex High School has progressed, RT Roofing Services has laid some 600m² plus of 6mm thick, 1200mm x 1200mm Magply boards. Magply is manufactured from an MgO formulation and carries a Euroclass A1 Non-Combustible Fire Rating. www.magply.co.uk


RCI April 2017
To see the actual publication please follow the link above