Latest innovations and products in the building fabric section of the construction industry.

CMS wins Aberdeen art gallery redevelopment contract

Leading window, door and curtain walling designer, fabricator and installer CMS Window Systems has been appointed to work on a £30 million project to redevelop the prestigious Aberdeen Art Gallery.

Working for main contractor McLaughlin & Harvey, CMS is tasked with providing curtain walling as part of the two year project designed by Hoskins Architects which will transform the city’s Art Gallery, Cowdray Hall and Memorial Hall. This will create new educational facilities, upgrade performance and reflection spaces and provide 21 new galleries in what was previously unused space.

A significant part of the project will be to alter the building envelope and create a new rooftop extension by removal of the existing pitched roofs and skylights, together with a new build extension to the rear. CMS will provide the solutions for this part of the project.

The company, which is based at Castlecary near Glasgow, will fabricate and install nearly 150 sq. m of curtain walling using Metal Technology’s System 17 SP (Silicon Pointed). This structural glazing system’s classic visual appearance provides a continuous and expansive external glass face to the façade in order to meet the contemporary design of the new building elements.

The curtain walling features 32mm insulating glass units (IGUs) which incorporate a 6mm SECURIT glass outer skin, a 6mm PLANITHERM low e glass inner pane and a 20mm cavity with warm edge spacer bar, silicon sealed with toggle glazing insert. The façade on the west elevation offers additional solar control with the inner pane on these IGUs being 6mm COOL‐LITE SKN 174 to manage solar gain in peak sunshine. The façade also features spandrel glazing created with a 6mm EMALIT ceramic painted inner skin insulated with 75mm foil faced rigid PIR.

Aberdeen Art Gallery was handed over to the main contractor in July and CMS is scheduled to begin installing the windows, doors and curtain walling in September. This comes as the gallery continues to raise the remaining one third of funds required for the project, which is already backed by The Heritage Lottery Fund and Aberdeen City Council who have each granted the project £10m.

A public fundraising campaign is helping to bridge the gap, which will see donors digitally acknowledged and anyone wishing to donate can visit: www.aagm.co.uk or call 01224 523670. Donations can also be made by texting AAGM001 to 70970 to donate £5, and AAGM001 to 70191 to donate £10.

Find out more about CMS at www.cmswindows.com.
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Polypipe Ventilation launches BIM library

Polypipe Ventilation, manufacturer of market leading energy saving Domus ducting and Silavent mechanical ventilation appliances, has set up a BIM (Building Information Modelling) Library, available free of charge.

BIM is a government driven shared knowledge resource, providing all of the information about every component of a building, in one easy to access place. It enables construction professionals to digitally model a building and examine its entire life-cycle, from inception and design to demolition and materials reuse. Using BIM data reduces the risk of mistakes or discrepancies at an early stage, making for more cost-effective, safe construction.

The Polypipe Ventilation BIM Library features an extensive array of products, including energy saving, whole house Silavent HRX Mechanical Ventilation with Heat Recovery (MVHR) appliances and Silavent CMX Mechanical Extract Ventilation (MEV) units, as well as award winning Domus Radial semi-rigid duct systems and its full range of Domus rigid ducting and accessories, which incorporates Domus Thermal duct insulation and duct sound attenuators.

BIM Object data on Polypipe Ventilation products includes detailed information such as product properties, geometry, visualisation data and functional data that enables the ?object? to be positioned and behave in the same manner as the product would in-situ. Airflow rates, for example, can be set at each grille or air valve, allowing engineers to easily and more accurately estimate pressure losses and velocities within the ductwork, which isn?t possible using other design packages, such as AutoCAD. Product dimensions are automatically calculated to ensure it fits into the desired design space and even the correct amount of product required is calculated within BIM to prevent product wastage. In addition, BIM enables parts to be automatically scheduled during the design process, for speed and maximum convenience.

UK BIM processes range from Maturity Level Zero to Level Three. Typically, a Level One project will use a mixture of 3D CAD and 2D work and is the level at which most private-sector companies now find themselves. Now required by law for centrally procured public sector projects, Level Two denotes projects where all parties use their own 3D CAD models (although these will not, necessarily, be working on a single, shared model) and design information is shared through a common file format, enabling any organisation within the project to combine the data with their own. It is considered only a matter of time before deadlines are put into place for the rest of the construction industry and beyond to meet Level Two.

Polypipe Ventilation has a well deserved reputation for quality, supported by excellent technical support, from a market leading manufacturer and designer. It is well placed to offer immediate, practical solutions to Building Regulations Parts F & L. The company continues to provide differentiated solutions in the private and social housing sectors, transforming the way developers, specifiers, installers, home owners and distributors meet emerging environmental standards.

For further information please go to www.polypipe.com/ventilation or call on 03443 715523.
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Young roofers to compete on National stage

From April to July, roofing apprentices from around the UK demonstrated their skills at regional heats to gain a place at this year’s SkillBuild Final, taking place on the 17th-19th November, at NEC Birmingham.

The competition, organised by the National Federation of Roofing Contractors (NFRC), saw fifty-five competitors taking part in one of eight heats, which were overseen by three judges, Matt Timby, Simon Dixon and Bob Coutts, who’s vast experience of roofing competitions range from a past SkillBuild winner to a recognised mentor for the international competition: World Championship for Young Roofers.

NFRC are pleased to announce that the following eight young roofers, who secured highest marks from across all the regional heats, will be heading to the final:

  • Andrew Emerton – Emerton Roofing (Western) Ltd
  • Harry Hillam – Thompson – Timby Traditional Roofing
  • Harry Pennock – J Chillingsworth Roofing Contractor
  • Lee Dowding – Dylan Faber Roofing Ltd
  • Liam Watson – West Country Tiling Co.
  • Sam Blount Graham – Barker Roofing Services
  • Tom Knight – Wheeler Roofing Services Limited
  • William Emerton – Emerton Roofing (Western) Ltd

The competition forms a part of the Skills Show, the nation’s largest skills and careers event, giving the competitors and the roofing industry a greater platform in which to showcase roofing.

Looking ahead to the final, Livia Williams, Head of Training for NFRC, said, “We are looking forward to this year’s final, where the best roof slating and tiling apprentices across the UK will be going head to head, to deliver the highest level of skill to claim the Gold Medal and to secure a coveted place in the UK Team for the Young Roofer World competition (IFD).”

“Over the years, NFRC has taken a leading role in organising the national SkillBuild roofing competition and working closely with roofing colleges, employers, Supplier manufacturing members and CITB. We have seen an immense value in encouraging and showcasing our best young talent and creating role models to inspire the next generation.”

“The Skills Show is, therefore, a great opportunity for the roofing industry, with the support from the regional roof training groups, in engaging with Year 11 school leavers, and their parents, in helping to address industry image, recruitment of new entrants and promoting careers in roofing.”

Throughout the heats, and for the final, special thanks must go to the three NFRC Supplier Members who have kindly provided materials; John Brash & Co. Limited, Klober Ltd and Wienerberger Ltd.

We wish all competitors the very best of luck for the final. Those interested in supporting the competitors, and to gain a better understanding of the competition, can book free tickets at www.worldskillsuk.org.

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Cembrit expands its sales team

Cembrit, the leading roofing and cladding specialist, has strengthened its UK sales force, with the appointment of two new regional sales managers. With experience in the roofing sector, Andrew Moore and Richard Evans will join the pitch roofing sales team, selling natural and fibre cement slates in the London and North Wales respectively.

Andrew Moore brings with him over thirty years of construction industry experience, having spent almost three years working with Monier Redland as an Account Manager and ten years with Jewsons as a National Account Manager. This wealth of experience will stand Andrew in good stead to increase Cembrit’s presence in the South East.

“Working for a company that has such a diverse product range is a great opportunity,” says Andrew Moore, Regional Sales Manager, Cembrit. “This vast product range means that Cembrit has a suitable solution for all building types. I look forward to meeting customers to explain the benefits of Cembrit roofing products and supporting them on new and existing projects.”

Richard joins the Cembrit team with over fifteen years of roofing experience. Having worked at Gordon H Richards, Clydesdale Roofing and SIG Roofing Supplies in the past, Richard understands the challenges that merchants and contractors face, and can bring this knowledge to Cembrit, to ensure we continue providing our customers with industry-leading products and services.

“I am excited to join a dynamic and well-established company,” says Richard Evans. “Cembrit has a fantastic range of natural and fibre cement slate products, so I look forward to discussing the benefits of these materials with existing customers and potential new clients. I am confident that I can use my industry knowledge to support the Cembrit team, and strengthen sales in the North Wales region.

For further information visit www.cembrit.co.uk, email sales@cembrit.co.uk or tel: +44 (0)20 8301 8900.
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Flat roof manufacturer Bauder extends BIM library

Following the arrival of the UK government’s BIM mandate back in April, which requires all centrally procured public sector building projects to be BIM Level 2 compliant, flat roof manufacturer Bauder has extended its BIM offering with the creation of 19 new waterproofing system objects that are available now for free download on its website.

The launch of Bauder’s new generic BIM models means its comprehensive library now includes objects for its bituminous, single ply, cold liquid applied, hot melt and green roof system options, which can easily be dropped into 3D models and plans. This allows architects, designers, specifiers and contractors to easily access and share all of the object information needed at the concept and design stage of a project. All of these BIM objects are available in Revit format, which according to NBS’ 2016 National BIM Report is by far the most popular tool used for producing drawings. In order to ensure that your BIM object meets the exact requirements of your building you will need to register your project with Bauder, who can in turn provide you with all the necessary technical support and resources.

Bauder’s Technical Director Nigel Blacklock commented: “A lot of the ideals that BIM is based upon, such as promoting the use of quality, long-lasting materials that deliver life-time value and getting things done properly first time on a project, align with our own principals as a market-leading manufacturer of flat roofing products. As a result, we will continue to invest our time and resources into BIM in order to extend our offering, as we see it as an integral part of the future of the built environment both in the public and private sector.”

For more information on BIM and to download your free objects now visit: www.bauder.co.uk.
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Transforming facades with silicone technology

An external wall insulation system is a thermally insulated, protective, decorative cladding procedure involving the use of an insulating material and a render finish. The most common insulating material is polystyrene, others such as mineral wool, polyurethane foam of phenolic foam may be used. The render finish usually consists of a reinforced base coat followed by a decorative mineral or synthetic finish.

The K Rend Silicone Thin Coat range is particularly suitable where lightweight render systems are required, such as an external wall insulation system (illustrated right).

K Rend Silicone Thin Coat products are available in an extensive colour range using the NCS System which helps customers visualise special colours for their project. NCS – Natural Colour System is a logical colour notation system which builds on how humans see colour.

K Rend Silicone TC 15 render holds the prestigious BBA certification, assuring you that vital product safety and performance requirements are met.

Benefits of Using External Wall Insulation:

  • Reduces heating bills by reducing heat loss through walls
  • Thermal efficiency of walls can be increased by up to 85%
  • Help to save the environment by reducing carbon emissions (as you burn less fossil fuel)
  • Reduce condensation (EWI raises temperature of internal walls)
  • Prevent damp & mould: EWI seals buildings from the elements
  • Improve acoustics: hi-density insulation reduces sound transfer
Contact our Technical Support Centre on 028 2826 0766 or email Sales@K-Rend.co.uk
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GRP or polycarbonate rooflights for industrial buildings?

Will you see the light?

Since the late 1950’s GRP has been a feature of many commercial, industrial and agricultural buildings across the UK, bringing the free resource of natural daylight into the workplace.
GRP is a strong thermoset material with good impact resistance and consists of, among other components, polyester resin which is reinforced by a glass strand mat.

The success of Filon rooflights resulted in several UK based manufacturers continuously producing GRP. Eventually, this involved the use of alternative plastic materials such as PVC. As a brittle material, this was at times subject to damage due to storms, foot traffic on the roof and UV degradation.

This didn’t stop the efforts of thermoplastic manufacturers to try to compete with ‘Filons’ and other GRP rooflights though and polycarbonate in-plane rooflights were born and have since steadily encroached on the GRP rooflight market. There are many positive attributes to polycarbonate such as it providing high levels of light transmission, being very strong and having a good fire rating. There are however, many aspects that should be considered in rooflight material choice for profiled roof applications and we shall discuss them now.

Thermal movement

A thermoplastic material such as polycarbonate has much greater thermal movement than GRP and over 5 times more than the surrounding steel sheets.

If no allowance has been made for this movement such as oversized fixing holes, it could create some problems particularly around the fasteners such as the sheet cracking and at the end laps with seals potentially failing. It is also possible for rooflights with an insulating box detail, such as those used in composite panel roofs, for the rooflight to expand but find resistance. The material will have no room to move as it will be constrained by the surrounding metal roof panels and so could belly out – bulge out of shape between the purlins.

Light Distribution

Another significant consideration is the type of illumination required in the building. GRP has high levels of light transmission and is also a naturally diffusing product. It will provide an even distribution of natural daylight across the area to create a balanced illumination reducing bright spots, shadows and hot spots.

Thermoplastics like polycarbonate, when used as in-plane rooflights however, tend to be clear or colour tinted. They are much less diffusing and allow more light to pass directly through the rooflight. This can create localised bright spots with solar glare and also hotspots due to the nature of direct sunlight.

The first images show two very similarly constructed equestrian centres but one is fitted with polycarbonate rooflights and the other with Filon GRP rooflights. The images clearly show a very different lighting pattern: the polycarbonate rooflights allow light to pass directly through so that their position is clearly replicated on the floor – even the purlins are casting shadows on the ground; the GRP rooflights in comparison provide a very even light distribution, so much so that there are not even any shadows visible around the horse and rider – the perfect conditions for easily spooked horses.

The second pair of photographs show a supermarket distribution centre, firstly with polycarbonate rooflights and secondly after the rooflights have been replaced with Filon GRP. Again, in the first picture, the position of the rooflights is clearly visible by the bright spots on the floor. The picture with new GRP rooflights has eliminated all of the bright spots and reduced localised internal temperatures without compromising lux levels – much more suitable conditions for storing some supermarket goods and foodstuffs.

The example projects highlight the importance of selecting the appropriate rooflight material. For your next industrial, commercial or agricultural building, please give careful consideration about the type of light distribution required. If an even spread of diffused light, without shafts of light, hotspots or dark corners is preferred, then GRP is likely to be the most appropriate choice.

Written by Mark Wilcox, Sales Director, Filon Products Ltd
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Refurb proves best for Fife flats transformation

When Fife Council consulted its residents at Broomhead flats in Dunfermline about the future of their homes, the options were pretty clear cut. The three 50-year old blocks of flats had reached the point where they either needed significant investment to bring them up to the current Scottish Housing Quality Standard, or needed to be demolished and replaced with new build properties.

The result of the residents’ consultation favoured refurbishment and, in May 2014, Fife Council’s Housing and Communities Committee gave the go-ahead for this project to begin. A key requirement was to deliver refurbished homes which offer a higher level of protection against fuel poverty.

The multimillion pound project has transformed 216 properties, housed within the three 12-storey blocks. The building fabric has been brought up to a higher thermal standard, utilising product technology which was simply not available in the 1960s. And that primarily involved the £5.1m contract with CMS Window Systems for the replacement of windows, doors and curtain walling, application of external wall insulation (EWI) and replacing balconies.

CMS was appointed as the main envelope contractor after winning the competitive cost and quality based tender. For Fife Council, this helped simplify the procurement process and supply chain from the outset. CMS was able to help develop a specification for the windows, and their appointment ensured consistent quality, trouble free interface integration and clear communication channels – all proving important to the success of this extensive refurbishment project.

Every flat benefits from A-rated, highly insulating windows which are manufactured with Sheerframe lead-free PVCu profiles and feature thermally superior low-e softcoat double glazed sealed units. With a low U-value, the energy rating (WER) of these fully UK-made windows represents a huge improvement in thermal performance.

CMS also manufactured and installed aluminium curtain walling which spans up to eleven floors on each block, enclosing all communal walkways – equating to more than 2,000m2 of curtain walling. This replaced existing steel balustrades and steel screens in communal areas to raise the quality and visual appeal, internally and externally.

A third component to the structural elements was the replacement of balcony enclosures. CMS installed more than 1,700m2 of enclosures created using Windoor System 1000 featuring ‘Light’ glazing systems. Their design gives tenants the freedom to use their balconies all year round.

Completing the transformation of the building fabric, CMS also over-clad the external walls with a mix of insulated render and render only, as required, using mast climbers for safe access and to ensure speedy delivery with minimum disruption. With total wall coverage of more than 11,000m2, this extensive over-cladding work has improved the insulation level of all walls to complement the performance of the windows, doors and curtain walling.

John Rodigan, Senior Manager of Building Services at Fife Council said: “The Housing and Neighbourhood Service of the Council demonstrated great foresight in their decision to invest in the energy efficient measures at Broomhead.

“It’s also no coincidence that one of our most environmentally committed companies won the contract, it’s been the perfect partnership with all stakeholders sharing the same objectives. The result for the Broomhead tenants will be significant in terms of reduced energy costs and increased comfort. These works have made a substantial contribution to Fife’s green agenda as well as supporting local employment and trade apprenticeships – the delivery of this project has been a real triumph for the Council.”

Find out more at www.cmswindows.com.
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Sika provides long-lasting solution to long-standing 
college roof drainage problem

The exceptional waterproofing and durability properties of Sika-Trocal single ply roofing membrane has proved its worth on a highly challenging project to refurbish a number of roofs at a busy college campus.

MidKent College is one of the largest further education and training providers in the South East with an estimated 8,500 students enrolled at its Maidstone and Medway-based campuses. The roofs on five buildings at its Maidstone campus, housing classrooms, workshops, kitchens, TV studios and staff rooms had reached a state of disrepair due to wear and tear.

With water ponding on the roofs, leading to water ingress, a solution was required. Sika-Trocal S provided the solution. A total of 4,200m2 of 2mm thick Sika-Trocal S was specified by contractor K&S Construction for the project which was carried out during term-time and with minimum disruption to buildings on site.

The application of Sika-Trocal S was designed to minimise the standing water risk and ensure correct falls towards appropriate outlets and hoppers. This was achieved by over-roofing existing roofs consisting of a number of different bases including felt and asphalt.

Sika-Trocal’s vapour permeable membrane was mechanically fastened at the perimeters and around penetrations using the product’s innovative laminated metal disc system. This system sees the membrane fixed to the roof in a single process, ensuring a fast installation, minimising components required and reducing overall project costs. A 120mm thick, high performance rigid thermoset insulation was also applied to improve the thermal efficiency of the buildings. 

Stuart Marris, Manager at K&S Construction commented: “The MidKent College project is one of the biggest in the firm’s history so it was imperative we specified the most reliable product for the job. Because Sika-Trocal S is amazingly versatile and easy to apply it meant we could carry out the work with little disruption and without the need for people to move out of the building.

“Of its many outstanding features, Sika Trocal’s reliability scores most highly with us.

It is vapour permeable so if there is any water trapped in the system it is possible to over-roof the building without having to worry about things such as condensation.”

Offering exceptional waterproofing, durability and a simple installation process, the cold-applied Type S roofing membrane from Sika-Trocal is approved by the British Board of Agrément (BBA) to have a life expectancy of up to 30 years. As well as providing a single, comprehensive solution to the roofs’ drainage issue, it has brought a pleasing, aesthetic uniformity to the campus buildings. 

Combined with an efficient installation that ensures an improved seal, the Type S waterproofing membrane delivers excellent performance and will provide buildings at MidKent College with safe, reliable all-weather protection for many years to come.

For more information please visit http://gbr.sika.com/.
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Ibstock showcases innovative special shapes range in new brochure

Ibstock, the UK’s largest brick maker, has launched the latest edition of its Ibstock-Kevington Special Shapes brochure, exhibiting its extensive range of specially designed bricks and solutions for creating stand-out designs and speeding up builds every day.

IBSTOCK

The magazine showcases the popular Ibstock-Kevington range of products for delivering stunning architectural visual effects and a ‘special’ edge to projects from either manufactured or cut and bonded brick shapes. Readers of the brochure will discover the endless design possibilities achievable through a combination of technical information and diagrams, and high resolution photography.

The products displayed in the new brochure include bullnose bricks; used for creating vertical and horizontal curves, spiral bricks; a completely unique design which uses a simple shape to create a complex and intricate finished result and Caplock; a capping and coping system that resists vandalism and improves the durability of the wall.

Andrew Halstead-Smith, Group Marketing Manager at Ibstock, says: “The new Special Shapes brochure not only makes the selection process easy, but delivers real design inspiration to support creativity across the industry. While brick has, for centuries, provided the traditional cladding for the UK’s buildings, its ability to move with the times and embrace changing trends and styles means it remains the construction material of choice. This brochure allows tradespeople to make informed decisions on how to meet the aesthetic and structural requirements of a building.

“The new brochure also outlines the CAD services available from Ibstock to ensure products fit bespoke specifications from customers.”

Available free of charge, the 2016 Special Shapes brochure can be ordered through the Ibstock Samples and Literature Hotline on 0844 800 4578 or visit the website at www.ibstock.com/literature.
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