Latest innovations and products in the external works section of the construction industry.

Sika Liquid Plastics solution allows Asda store to remain open during roof refurb

A popular Scunthorpe supermarket has recently benefited from a complete roof refurbishment using a Sika Liquid Plastics Built-Up Roof waterproofing system. The Asda store had to remain open throughout the project, requiring expert planning by Northampton-based contractor Ice Roofing.

The building, originally constructed in 1976, was suffering from water ingress and the roof was in urgent need of repair. To ensure that the store could remain trading throughout the project, the client required a cold applied waterproofing option. Managed by Uplands Retail Ltd, the contract involved a tight timescale to refurbish several of the supermarket’s large roof areas, totalling 2000sq m.

Ice Roofing, a Sika Liquid Plastics Quality Assured contractor, already had a good reputation with Asda thanks to a number of previous jobs and were the obvious choice for the job.

Gareth Davies, Ice Roofing, explained: “We knew that our partnership with Sika Liquid Plastics would give us the advantage of additional expertise when specifying a product for the project.

“The team at Sika conducted a detailed survey, including thermal imaging using the latest technology, allowing us to see where the real problem patches where. This enabled us to reduce the area of roof we would have to completely strip back to the steel deck, which was really significant in keeping disruption to a minimum.”

A further challenge presented itself when asbestos was found in areas of the felt that needed to be stripped away. Ice Roofing brought in the experts to remove the existing substrate containing asbestos, while maintaining the integrity of the store’s waterproofing and complying with strict HSE standards.

Completed in just 10 weeks, two teams of three first increased the height of the roof by increasing the insulation thickness around various complex details. Sika Liquid Plastics’ Decothane Gamma 20 roof coating system in Slate Grey was then applied over the entire roof area. The cold applied, zero flame, zero heat Built-Up Roof system allowed the store to remain operational throughout the works; a key benefit for the local community.

A mineralised walkway was also installed to enable ease of access for future maintenance work.

Gareth added: “We worked fast and smart to deliver a seamless finish on the roof, with the liquid system offering ease of application around plant and penetrations. The superior 20-year guarantee, signed off by Sika Liquid Plastics when works were completed, sealed the deal for the client.”

Decothane is available in the UK from Sika Liquid Plastics. For further information visit http://gbr.liquidplastics.sika.com or call the inquiry line on 0800 112 3826.

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Sika Liquid Plastics protects National Sailing Academy from the elements

Sat on the seafront in Pwllheli, North Wales, the Welsh National Sailing Academy and Events Centre boasts stunning architecture and design, but was a challenging build. Anglesey-based Weatherwell Roofing was contracted to waterproof the roof and walls, during a winter project that required the skilful application of a variety of Sika Liquid Plastics products.

Due to the location of the sailing academy, standing between the dunes and marina of Pwllheli, the main requirement of Ellis Williams Architects was to achieve a striking design that could withstand the elements. Any products used on the project would have to offer a flawless finish alongside durability and strength, backed by guarantees.

Sika Liquid Plastics’ liquid applied waterproofing systems fitted the bill and were specified across the building envelope. On the gabion walls, a Decothane Gamma 20 system was used, and on the concrete walls, a Sikalastic 618 15 year coating. All of the gabion walls were waterproofed down to the foundations of the building, with the liquid system seamlessly joining the walls to the roof areas. This created a 100% waterproof junction between the two, an extremely important factor for a building that must weather the coastal environment. In addition, Decothane has excellent elastic properties, making it UV stable and tolerant of thermal movement.

For the cold roofs, warm roofs and green roof area, totalling over 1000sq m, Decothane Delta 25 with applied on to various primed surfaces, from concrete deck to a mix of flat board and tapered Decotherm insulation. All the roof areas were covered by timer decking for use as viewing galleries and cafe seating areas, where a Sika Liquid Plastics protective layer was also used.

Kristian Lewis, Weatherwell company manager, said “We completed our portion of the project in 14 weeks, despite working through winter in very difficult conditions. Even in low temperatures we were able to expertly apply the Sika Liquid Plastics waterproofing membranes. The liquid applied nature of the products allowed us to get a great finish, even around the more complex detailing.

“It’s great to be involved in a project that will give so much back to the local community and open the door for new sailors in the area.”

The Sika Liquid Plastics technical team were on hand throughout the project to offer expert guidance, from initial design and specification to quality control during installation and final inspection, resulting in the issue of single point guarantees.

The National Sailing Academy, commissioned by Gwynedd County Council, secured funding of over £8m for its construction, in order to increase opportunities for the surrounding community and boost the local economy. The facility has been constructed to BREEAM ‘Excellent’ standards with sustainable features including biomass heating, solar panels and rainwater harvesting. Officially opened in the summer of 2015, the centre acts as a hub for national and international sailing events, as well as hosting a number of clubs and training activities.

Decothane is available throughout the UK from Sika Liquid Plastics. For further information visit http://gbr.liquidplastics.sika.com or call the Enquiry Line on 0800 112 3826.

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Polypipe provides perfect attenuation solution for new housing development

Polypipe, the UK’s leading manufacturer of engineered sustainable drainage solutions, has seen its popular Ridgistorm-XL large diameter piping system installed as part of a water management attenuation solution for residential developers Kensington Developments.

Situated in the village of Marton, near Blackpool, the Magnolia Point development consists of 45 detached and 38 semi-detached three and four bedroom new family homes.

Due to the layout of the site, there was a limited public open space available to install a suitable attenuation system capable of storing the required stormwater for the development. Polypipe was approached to review the initial site drainage plan and worked alongside Consultant Engineer, Elluc Projects Ltd to design an alternative solution to meet the needs of both a 1 in 30 and 1 in 100 year storm events under Section 104 agreement.

The selected system was required to fit within an area of 1.25km² and store 680m3 of stormwater. In order to meet these requirements Elluc Projects Ltd specified an attenuation tank formed of 482m of Ridgistorm-XL 1200mm diameter SN2 pipe and fittings. Polypipe was able to take into account the site conditions in order to engineer the Ridgistorm-XL system to exact structural calculations. These calculations ensured that the Ridgistorm-XL system was designed to accommodate vehicles onsite, both during the backfilling and post installation.

The modularised system boasted 17 pipe runs as well as 20 prefabricated fittings, including 17 1200mm 90 degree bends, C and F sections, as well as 3 1800mm RIDGISTORMAccess Manholes. The system was connected together with sealing rings, the simplest jointing method which does not require welding, helping to save time during the installation.

Manufactured in Polypipe’s in-house specialist facility, the Ridgistorm-XL system was delivered to site in ready-to-install modular units, allow for easy handling, whilst reducing the need for heavy plant and minimising time and installation cost.

Richard Fox, Quantity Surveyor at Kensington Developments, said: “It was of paramount importance that the attenuation system used could be designed to fit into our limited available footprint. Polypipe’s pre-fabrication facilities meant that the system was designed and delivered to fit. The pre-fabricated fittings also assisted for a speedier installation, and reduced health and safety risks on site.”

Vikki Woodhouse, WMS Residential Manager at Polypipe Civils, said: “We have vast experience in providing water management solutions. The Ridgistorm-XL attenuation tank needed to be designed to fit within the limited space available and so Polypipe’s technical experts were on-hand to advise on the design from the beginning of the project. We were given a very unique project and designed a fully engineered system, taking all of Kensington Development’s requirements into consideration providing expert stormwater for the site.”

The installation of the Ridgistorm-XL attenuation system was completed in September 2015.

For more information please visit www.polypipe.com.

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Alutec and the future of housebuilding

Alutec’s aluminium rainwater systems have been installed on a landmark new housing project developed by Wienerberger, the leading provider of wall, roof and landscaping innovations. The Wienerberger e4 brick house™ at the BRE Innovation Park has been designed to be a future archetype for sustainable and affordable housing in the UK.

Designed in conjunction with global engineering and design consultancy ARUP, the e4 brick house™ is based around four fundamental principles of energy, economy, environment and emotion. Designed using Building Information Modelling (BIM), the Wienerberger e4 brick house™ has a build time of just 12 weeks, which is around half that of standard housing, and has the flexibility to work just as effectively through shared ownership as it would for a privately-owned home.

Central to the project’s ethos is the use of market leading building products and solutions that offer excellent sustainability credentials as well as high levels of performance. Specified for the coping, fascia and soffit system was Alutec’s Evoke range in RAL7016 Anthracite Grey. Made from highly durable composite aluminium, the Evoke range has a life expectancy of 50 years or more and features a unique nano self-cleaning coat resulting in minimal maintenance requirements.

Also specified was Alutec’s Evolve Half Round guttering and downpipes in the same colour. The Evolve product range is manufactured from marine grade aluminium and as this high quality material is so impervious to corrosion, it provides the same 50-year life expectancy as the coping, fascia and soffit. In addition, aluminium is also extremely light – up to 65 per cent lighter than cast iron alternatives – making it much safer to handle on site and quicker to install.

Paul Surin, Head of Built Environment at Wienerberger, commented: “The Wienerberger e4 brick house represents a significant step forward in the progression of UK housing and offers an accessible model that can be implemented now. Choosing the right materials was therefore crucial in achieving a build that met the strict requirements the future industry will demand and that we set for ourselves.

“Alutec’s products were a perfect fit in this respect as their longevity, sustainability and low maintenance requirements meant we could deliver not only the type of building we wanted to but the intended lifestyle for the future residents as well.

Importantly, Alutec’s products are available as BIM components which meant they could be seamlessly integrated into the design and allowed us to meet the tight deadlines we had set ourselves for the build of this project.”

Alutec has the most comprehensive BIM portfolio of components of any rainwater product manufacturer and has an experienced technical team that can assist with bespoke design and project management. What’s more, Alutec’s products installed on the Wienerberger e4 brick house are full recyclable at the end of their extended life span, making them some of the most sustainable products available in the UK.

Designed to achieve standards such as the Code for Sustainable Homes Level 4 without renewables, 2016 Part L and complying with Lifetime Homes and the London Housing Design Guide, the Wienerberger e4 brick house provides a real solution to the current housing crisis.

For more information about Alutec please visit: www.marleyalutec.co.uk.

For more information about Wienerberger and the e4 brick house please visit: www.wienerberger.co.uk/e4-house

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A final coating to put others in the shade

The first new building to open in Northampton’s flagship Waterside Enterprise Zone is the £8.5m University of Northampton Innovation Centre, seen as a hub for organisations that deliver social impact. This striking six floor cubic building leaves the onlooker in no doubt that Northampton’s new development means business.

Locally based Powdertech Corby Ltd powder coated the solar shading system on the exterior of the building, a contract worth £11K.

Richard Besant, Powdertech Corby Sales Director commented “We coated over 1800 individual sections comprising fins, end plates and brackets, in a premium quality Valspar architectural powder, RAL 9010 white matt. When we viewed the completed building at the end of the job, we could appreciate the fabulous visual effect these solar shades create, in addition to being part of a highly functional design.”

Vertical solar shading fins on the north, east and west side of the building will shade the windows from summer sun and moderate solar gain. They improve the insulation value of glass in the winter by acting as a windbreak. On the south side of the building, horizontal solar shading fins, across the windows, will reduce glare and solar heat gain in the summer but also allow low winter sunlight to shine through in the colder darker months.

Architectural powder coatings are especially suited for use on solar shading systems. The powders have excellent gloss retention, resistance to corrosion and UV light and will last for up to 40 years without significant colour change.

The Waterside Enterprise Zone is part of the Northampton Alive regeneration scheme and incorporates a new £330m campus for the city’s University alongside global brands and thriving small businesses.

For further information on Powdertech (Corby) Ltd and the benefits of powder coating please call 01536 400890,visit www.powdertechcorby.co.uk or email Richard.b@powdertech.co.uk.

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Winter Wrapped Up!

To help you prepare for the colder months we’ve got winter wrapped up with our comprehensive range of winter safety products. Turbocast 800™ towable grit spreader can be used as a broadcast or drop spreader. Turbocast 800 will hold approximately 10 x 25kg bags of rock salt and gives controlled, accurate coverage up to 8 metres width at speeds from 5-20mph. Turbocast 300™ manual grit spreader spreads to a width of between 3 and 7 metres with minimum effort and can be easily pushed along, even when fully laden. Nestor 400 grit bin has a double skinned lid for supreme strength and durability. The weight of the lid is sufficient to minimise the risk of it opening in strong winds and therefore protects the contents from adverse weather conditions.

Glasdon UK Limited
Telephone: 01253 600410
E-mail: sales@glasdon-uk.co.uk
Website: www.gritbins.co.uk

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Polypipe Terrain awarded Investors in People Silver Award

The people management skills of Polypipe Terrain, the UK’s leading plastic piping manufacturer, have been recognised by renowned independent commissioner, Investors in People.

For their continued dedication to managing performance, delivering continued improvement and creating sustainable success, Investors in People awarded Polypipe Terrain with its sought after Silver Award.

To achieve the Investors in People Silver accreditation, Polypipe Terrain had to demonstrate best practice across areas outlined in the Investors in People framework. The framework focusses on 9 key indicators, with Polypipe Terrain required to consistently outperform their peers when measured against the criteria.

Whilst a large number of British companies are awarded the Investors in People award, as of December 2014 only 6% of those who entered were awarded the prestigious silver certificate.

Members of the team, including operations and logistic staff, sales team, office staff and senior management, were interviewed by an Investors in People representative over a number of months in order to achieve the accreditation.

Polypipe Terrain used the assessment to establish core values which now underpin the company including Excellence in Service, Quality, Together and Health, Safety & Environment.

Lee Dawes, Finance Director at Polypipe Terrain, said “We have always been dedicated to developing and growing the team at Polypipe Terrain, the Investor in People award gave us the opportunity to prove that our hard work is paying off.

“To be awarded the silver award was a brilliant achievement and is a testament to the hard work of everyone in the team.

“We are now working hard towards the gold certificate, continuing to improve and develop our core values.”

To learn more visit www.polypipe.com/terrain

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Versatile Hydro-Brake® Agile Expands Options for SuDS on New Developments

Hydro International is launching the Hydro-Brake® Agile flow control, marking a significant new opportunity for highly-efficient surface water attenuation with the lowest-possible flood storage volumes to meet stringent planning and Sustainable Drainage Systems (SuDS) requirements.

Simple, cost-effective and easy-to-install, the float-activated Hydro-Brake® Agile extends the Hydro-Brake® Flow Control Series, a versatile toolbox of precision-engineered flow controls for every project and budget.

The Hydro-Brake® Agile meets stringent stipulations for surface water discharge rates and can be engineered to achieve the lowest-possible flood storage. It can therefore help developers meet strict planning requirements and ensure acceptance by adopting authorities, while reducing land take and construction costs.

“The Hydro-Brake® Agile achieves a constant rate of discharge and therefore the lowest possible upstream storage volumes,” says Phil Collins, Stormwater Sales and Marketing Manager UK and Ireland. “It is ideal for new developments, watercourse flood alleviation or highways projects with stringent discharge requirements, where the space available for flood storage is very limited.”

“Minimising flood storage above ground avoids the use of valuable building land and minimising flood storage below ground helps solve space limitations in underground tanks or pipework. It also keeps contracting and equipment costs as low as possible.”

“As the cost of a flow control is a small proportion of total project costs, an investment in a precision-engineered device can result in considerable savings, especially where space is at a premium.”

The unit’s automatic operation and predictable, repeatable performance ensure that maintenance costs are minimal. The Hydro-Brake® Agile reduces the long-term management burden by providing a predictable schedule for site management companies or adopting authorities.

Designing an effective system using Hydro-Brake® Agile is easy using Hydro International’s free technical and design support service. Professional engineers are available to provide advice on sizing, flow and storage calculations, as well as assisting with dimensioned installation drawings.

Hydro-Brake® Agile

The Hydro-Brake® Agile comprises an orifice plate with a variable open area regulated by a float-arm operated gate to deliver a constant discharge rate over a wide range of heads. The discharge rate is adjustable to match the discharge requirements for the site.

Discharge through the open gate at low flows is unimpeded. During a storm, the float arm closes the gate until the maximum water level and discharge rate is reached for a designated event, so that the gate is prevented from closing further, despite any increases in head.

The maximum discharge rate is maintained while upstream storage is drained down rapidly, ensuring the unit is ready for subsequent storm events, until the float returns to the resting position with the gate fully open. The Hydro-Brake® Agile is easily adjustable to accommodate changes in operating conditions.

Manufactured from high-grade stainless steel, the Hydro-Brake® Agile Flow Control can be matched to a range of outlet pipe sizes. The unit can be supplied prefitted in a cast concrete chamber for easy on-site installation. To suit the location and invert required, the chamber depth can be easily varied with concrete rings.

The Hydro-Brake® Flow Control Series

The Hydro-Brake® Flow Control Series is a versatile toolbox of precision-engineered devices for surface water control: Hydro-Brake® Agile; Hydro-Brake® Flood Alleviation; Hydro-Brake® Optimum; Hydro-Brake® Orifice.

For more information about the Hydro-Brake® Flow Control Series and other stormwater and waste water management products please call 01275 337937, email enquiries@hydro-int.com or visit www.hydro-int.com.

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EQUITONE inspires modern design at Ashton Sixth Form College

Photography: Infinite 3D

Ashton Sixth Form College in Greater Manchester is inspiring the next generation of students with a new entrance structure that’s clad in EQUITONE [tectiva] fibre cement facade material.

The new entrance building utilises the translation of the college’s ‘graphic’ logo in a simple extraction of geometry.

EQUITONE [tectiva] was used externally and internally for the new reception building, and executes a striking aesthetic through a series of dramatic fins. The entry axis from the main road brings one into a transitional zone between ‘old’ and ‘new’ architecture, expressing the contrasting textures of the fibre cement material against the existing brick and stone work.

EQUITONE [tectiva] is a through coloured fibre cement facade material that is available in a range of elegant shades of natural colour. Its fine sanded lines and naturally occurring hues within the material enhance its aesthetic appeal, which constantly changes with the effect of light and shade.

It was the crisp, clean and lightweight properties of the fibre cement facade that initially attracted project architects GA Studio. “We specified EQUITONE [tectiva] because of its unique aesthetic properties and its ability to help us create a simple yet, striking, geometric form that would reflect the forward thinking nature of the college and provide a new corporate face,” said Martin James Gibson, managing director of GA Studio.

He added: “By combining a mix of new build and refurbished space we were able to provide a naturally lit, dramatic space that looks impressive during the day and acts as a beacon at night.”

For further information on EQUITONE [tectiva] please visit: www.equitone.co.uk

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Reading College uses Tanktronic to Ensure Safe Healthy Water at all times for Students

UTC Reading is a University Technical College that offers computer science and engineering courses to up to 600 students, aged 14-19 years. The college is located in a new building (opened in 2013) which is situated a short distance from the University campus.

In common with most large commercial buildings, the college is provided with cold water from the rising main via a ground-floor tank which guarantees an uninterrupted supply of drinking quality water whatever the demands placed on it by its many occupants.

During term time, demand is at its highest so the challenge is to ensure a constant supply throughout the building at all times. That demand obviously drops during the holidays which means the focus shifts to ensuring the water in the tank remains healthy. Even during terms, occupancy levels fluctuate particularly at weekends, meaning demand is rarely constant.

The water tank at UTC Reading is divided into two chambers to allow easy maintenance and cleaning while still ensuring an uninterrupted supply of water to the building. However, a divided tank has to be carefully managed; both sides of the tank need to fill with water at the same rate from the rising main to ensure neither side becomes ‘static’ as this could lead to bacterial growth and stagnant water.

At UTC Reading, the water within a divided tank was controlled by two independent equilibrium valves which were not working simultaneously, thus one side of the tank filled and emptied faster than the other side – the latter was in danger of becoming static.

M&E contractors LJJ Ltd turned to Keraflo for a solution that would not only guarantee the safety of the water, but would also deliver a highly flexible supply within the building. The decision was made to install Tanktronic (TT43 and TT15) as the preferred option for both managing water quality and to act as valves, controlling the water influx into both sides of the tank.

Tanktronic is an electronic tank management system which provides a complete solution to managing and controlling tank filling, as well as monitoring/reporting water levels and temperature.

Where required, it can be integrated into a building management system to alert the management team to any changes in the stored water. It also has a very useful calendar (holiday) setting so that the building management team can vary tank capacity to match demand.

Its smart functionality includes a Repeater Panel, which enables control from up to 100 metres away (meaning tanks housed in basements or roofs can be controlled from the comfort of the management office) and the Battery Module, which provides up to two days of normal operation in the event of a power failure. Having been launched three years ago, Tanktronic is already installed in many prominent buildings including The O2 Arena in London.

Philip Eykel, Operations Director of LLJ Ltd says: “We were very pleased with the service provided by the Keraflo team. Their technical support was fantastic, installation was easy and the team was onsite to ensure everything went smoothly. As far as I’m aware, the system is working perfectly providing both a high level of control and ensuring that water in the tank is regularly turned over to keep supplies healthy.”

For more information call 0118 921 9920, email info@keraflo.co.uk or visit www.keraflo.co.uk.

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