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

SmartPly is set to revolutionise the way timber frame structures are designed and built with its latest technological innovation – the SmartPly VapAirTight structural OSB panel. With integrated vapour control properties and airtightness engineered into each panel, SmartPly VapAirTight has performed six times better than PassivHaus standard for air leakage, making it the ideal panel system for ultra-low energy buildings.

The result of three years of rigorous development by SmartPly and extensive testing at the Fraunhofer Institute for Building Physics, SmartPly VapAirTight is recommended by the Passive House Institute as a product for providing airtightness. Each panel features alternating layers of wood strands coated with a high quality formaldehyde-free resin and wax to deliver outstanding levels of airtightness. A specialist coating is then applied to add vapour resistance and provide a premium performance OSB solution for super-insulated and passive buildings.

“OSB is assumed to be airtight, but tests prove a huge variation in performance, between manufacturers and even between different production cycles,” explains David Murray, Innovation Manager at SmartPly. “Developed from our OSB3 system, SmartPly VapAirTight has integrated vapour control and unrivalled air barrier properties and will help to close the gap between design and as-built performance.”

Available in a standard 2397mm x 1197mm size, the panel uses a newly developed high performance coating to ensure consistently high vapour resistance across its entire surface. The smooth and durable surface has also been developed to provide superior bonding of airtight tape at panel joints. Where air and vapour control layer (AVCL) membranes are notoriously difficult to seal, SmartPly VapAirTight offers excellent seal adherence to prevent air leaks, condensation and structural damage.

Manufactured from FSC-certified timber to the specification detailed in BS EN 300:2006, the rigid panel is a sustainable, robust and cost-effective alternative to specialist AVCL membranes. With minimal risk of damage during assembly, transport and installation, airtightness should not be compromised thereby ensuring the panel performs as well on the construction site as in factory controlled conditions.

By the very nature of the product, SmartPly VapAirTight can also reduce waste and man hours, as site applied, or factory applied, air and vapour control layers are not required. The panels can be readily cut and fixed using standard timber frame fixings, removing the need for additional membranes, sealants and foams.

Suitable for both new build and renovation projects, SmartPly VapAirTight is a versatile, strong and cost-effective OSB panel system. If the UK is to meet its target of an 80% cut in carbon emissions by 2050 with all new homes built to be ‘zero carbon’, SmartPly’s latest innovation could play a vital role as part of a highly sustainable and fabric first approach.

For more information on the new SmartPly VapAirTight panel system, go to www.smartply.com/products/vapairtight.

With its expansive range of added value services, Marflow Hydronics is able to provide customers with far more than just a complete product portfolio.
The company’s highly skilled team of engineers has combined experience in a multitude of areas, including design, installation and commissioning, and Marflow Hydronics’ added value service promise means that customers are able to utilise this experience to help them throughout their projects.
Whether the customer is facing challenging water distribution problems, needs advice about various pipe layouts and configurations, requires technical support or help with design input, Marflow Hydronics’ range of products and services have been put together so that the company can offer the ideal solution for any HVAC application.
Chris Forbes, Managing Director, says, ‘Anyone can just sell a product, what makes us stand apart is the dedicated service that we offer to all customers. We want their projects to be as good as they can be, and we will happily support our customers in whatever way they need us to. There isn’t a member of the team at Marflow Hydronics that doesn’t believe in the added value we offer.’
To find out more about Marflow Hydronics go to www.marflowhydronics.co.uk/didyouknow and be in with a chance of winning a major games console.

Are your structural waterproofing designs based on a waterproofing risk assessment that has been produced by a suitably qualified specialist? Have you appointed a waterproofing specialist at an early stage of the system design to ensure it is suitably integrated with the overall design of the building? Is your waterproofing expert qualified to CSSW structural waterproofing surveyor standard? If the answer is no to any of these questions then a building insurance company is unlikely to issue you with a warranty.

The increase in the provision of residential basements, the development of new types of waterproofing system and the growing number of claims being made following the failure of structural waterproofing systems were all key drivers for recent changes in industry and insurance company standards – and the reluctance of insurance companies to issue warranties if these new recommendations are not followed.

BS 8102: 2009 (Code of practice for protection of below ground structures against water from the ground) and NHBC waterproofing standards both now include recommendations that any waterproofing system designs are based upon a risk assessment that is appropriate for the property and its intended use, and that the risk assessment is produced by someone who is suitably qualified.

INK Technical Services was established to help housebuilders, architects and other specifiers meet the standards’ requirements so insurance companies are satisfied that a robust waterproofing system is in place. The INK team represents nearly 100 years of structural waterproofing experience and includes CSSW qualified structural waterproofing surveyors. In addition to the production of waterproofing risk assessments, INK Technical Services offers a waterproofing design service; site inspections; reports on failed systems and proposals for remedial measures and approved contractor referrals.

For further information visit www.inktechnicalservices.com

Insulated external walls are an effective way to prevent energy loss from all types of properties. Ged Ferris, Marketing Manager at Cembrit discusses the incorporation of render-backer board, as a substrate in such constructions.

There are an ever increasing number of ‘green’ solutions becoming available to help cut wasted energy and in the process help the environment. The government driven schemes; the Renewable Heat Incentive and the much-talked about Green Deal, are concerned with improvements that homeowners can make with cutting edge energy saving technologies as well more conventional projects such as improving insulation. In fact, as many contractors recognise, significant heat loss from a building is through outside walls. There is of course cavity wall insulation available, but where that is not possible or desirable – a commercial building for example – external wall insulation can provide the same benefits.

Reduced costs

A typical installation of external wall insulation can cut heating costs by as much as 40%, with the additional benefits to the owner of a reduced risk of condensation and resultant decay of the building fabric. The education market has already taken up this trend and as cuts in education spending start to bite, this type of construction is likely to prove a popular choice for establishments looking for a modern and energy efficient upgrade.

External walls incorporating insulation are constructed as double skin, with the insulation shielding the internal layer and an air gap with a decorative outer skin providing the weather protection and aesthetic effect. Taste dictates that not everyone desires the same finish and there is a multitude of suitable materials, colours and textures available. Although a rendered finish is usually associated with block or masonry, the use of a good render backer gives additional scope for a coarse, textured or smooth finish that can be either painted, pigmented or left natural. The monolithic finish will of course eliminate joint shadowing, which can be an issue to some.

To achieve a desirable monolithic finish that will not only satisfy the design brief but also perform well in the long run, it is important to use a good substrate. A stable render backer will help achieve a better uniform exterior finish. Secure fixing and seamless joints are important preliminary steps that eliminate the potential for cracking.

Installation

Installing a render backer is a simple process but for maximum advantage it is a real bonus if the board is lightweight. This helps with manoeuvrability on-site and during the actual fixing process. A case in point is Cembrit’s PB board which incorporates polystyrene beads in its construction. This reduces the density of the board and also makes cutting easier. There is no requirement for mechanical cutting equipment, all cutting can be done with conventional hand tools. This also helps with safety eliminating the risk of nuisance dust.

The installer typically has to be aware of fixing too close to corners / edges as this can damage the boards. A recent development to solve this problem is a board with reinforced edges. In order that fixings can be completely covered with render, the edges are also chamfered meaning the fixing head is below the surface of the façade. Designed to fit neatly together to maximize stability at the butt joints, further reducing the risk of the render cracking along the joints, each of the boards characteristics reduces the risk of the render cracking along the joints or spalling above the fixing, which looks unsightly.

An alternative to rendered finish is brick slip or stone cladding. Such finishes require a strong and stable substrate onto which they are adhered. The best quality render boards can also fulfil this function. Truly versatile boards now coming onto the market will make a huge contribution to the energy efficiency and appearance of buildings for many years to come.

With an increase in demand for lightweight external cladding systems, contractors need to be up to date on the installation of render-backer boards. If specified, and installed correctly, a monolithic finish that is thermally efficient and a pleasing to the eye can be achieved with the minimum of fuss.

Leading window, door and curtain walling manufacturer and installer CMS Window Systems has boosted its aluminium division by adding one of the world’s leading systems to its portfolio and obtaining CWCT membership.

The company, which employs more than 200 people at its HQ and main manufacturing facility near Glasgow, has joined forces with Kawneer to become an authorised partner in a move which gives customers access to an even greater range of fenestration and building envelope solutions.

Since its launch almost a decade ago, CMS has enjoyed continued growth as one of Scotland’s market leading design manufacturers and installers of aluminium, PVCu and timber hybrid, window, door and curtain walling systems. The company works with a wide variety of commercial developers and main contractors delivering projects such as newbuild student accommodation, schools, hospitals and commercial offices.

Director of the Aluminium Division at CMS, Stephen Anderson says the decision to join the Kawneer authorised dealer network was born out of the company’s ethos of continual improvement:

“We are constantly investing in our manufacturing processes, design and technology resources to increase production efficiency and make life easier for our customers. We’re also committed to investing in our product range, and becoming part of the Kawneer dealer network reflects this commitment, giving our customers access to an even broader range of architectural aluminium building products and systems from a business that has a reputation as an innovator in the market.”

Strengthening its technical credentials further, CMS has also become a member of the renowned Centre for Window Cladding Technology (CWCT). This reinforces the company’s commitment to delivering the highest technical standards within the building envelope market and its dedication to continuous improvement.

CWCT uses various testing methods, which determine the level of serviceability of a window, façade or cladding system when subjected to various levels of water, air and solid object impact. The final level of certification depends on the pressure reached or the degree of damage caused after impact. The standards that make up the CWCT tests are calculated to give independent verification that windows and cladding designed for the building envelope, will achieve the values expected.

Its membership provides additional assurance to clients and main contractors and sits alongside a variety of key industry memberships and accreditations that CMS currently hold. These range from Investors in People and ISO 14001 at a business management level, right through to Constructionline, CHAS, Secured by Design and Energy Saving Trust recommended status which directly benefit clients

CMS operates from a 15-acre modern manufacturing and recycling facility in North Lanarkshire, with additional facilities in Fife, producing more than 100,000 window units and thousands of square metres of curtain walling every year. The firm provides a 360-degree building envelope solution from design through manufacture, installation and aftercare, an approach that has seen it work on some of the largest housing investment programmes and commercial building projects throughout the UK since its formation in 2006.

For further information visit www.cmswindows.com.

A new trade organisation has been established to represent all that’s best in the basement waterproofing industry, with benefits for homeowners, contractors, manufacturers, suppliers, architects and more.

The Basement Waterproofing Association is an independently managed organisation, set up by leading innovators in the field, with numerous industry-related goals at its core.

Collette O’Connor, Chairman of the Basement Waterproofing Association comments: “We know a great deal about effectively protecting underground spaces from water in the ground but that doesn’t mean we should stop learning. This organisation is all about research, shared knowledge, best practice and mutually beneficial relationships for all involved – particularly our customers.

“By choosing to work with one of our accredited member companies, homeowners are assured that they are dealing with one of the industry’s best-informed installers – one that will only start work once all applicable legalities have been met; only use approved materials and practices; and strictly comply to Building Regulations.

“Professionalism and ethics are at the top of our Code of Conduct. Where unscrupulous contractors put profit above all else, our ongoing concern is customer satisfaction – for years after the job is completed. To that end, we encourage and facilitate members to sign up to the Construction Guarantee Solutions Ltd. scheme, offering customers ten-year insurance-backed guarantees that will be honoured, even in the unlikely event that the original contractor should cease trading.”

Businesses can also access professionally designed promotional materials – incorporating their logo and company details – via an online marketing portal on the organisation’s website. “The Basement Waterproofing Association logo should be seen as a signpost for high standards and quality”, Collette continues; “and by helping our members to achieve a consistent, professional style in their promotions, we’re building both our brand and theirs at the same time.

“Our training offering has been designed for specialists from all areas of the trade – from architects to contractors – providing them with the knowledge to comprehensively survey underground spaces and identify appropriate waterproofing solutions. It’s a proactive way of promoting career development within member companies, offering employees an affordable means of furthering their expertise, with three-day courses run across the country, throughout the year.”

Besides detailing the benefits of working with a Basement Waterproofing Association-accredited installer, the organisation’s new website boasts a wealth of information for homeowners, including numerous considerations that might not be obvious to someone planning such work for the first time.

“Radon gas, party wall responsibilities and planning permission”, Collette explains; “they’re all things that can have a significant bearing on a basement waterproofing installation. Our website guides homeowners through matters like these, provides a useful search facility that pinpoints where their nearest accredited installers are based, and invites people to get in touch with their questions.

“It’s great to see our hard work coming to fruition with this organisation. The Basement Waterproofing Association is the authority base that our industry needs and we look forward to it growing and developing as more and more members get involved.”

With PropertECO and 12 branches of the Peter Cox chain having already signed up, other companies interested in learning more about the Basement Waterproofing Association, its various membership options and the latest news from around the industry should visit: www.basementwaterproofingassociation.org

Flat roofing specialists Bauder have once again been awarded the prestigious Investors in People (IiP) Gold status, which recognises high performing organisations that put their people at the heart of their success.

This is the second time that the company, based in Ipswich, has been awarded the highest accreditation of Gold, an accolade that is awarded to only 7% of applicants each year; which is particularly impressive considering over a third of the UK’s workforce used IiP this year.

To achieve this standard, Bauder was rigorously and objectively assessed against a framework of 10 criteria to determine performance; Business Strategy, Learning and Development, People Management Strategy, Leadership and Management, Management Effectiveness, Recognition and Reward, Involvement and Empowerment, Learning and Development, Performance Measurement and Continuous Improvement.

Now in its 24th year, Investors in People has long been acknowledged as the most successful framework for business improvement through people, and its accreditations are regarded as a mark of real organisational excellence around the world. The primary objective of IiP is to optimise workforce performance by championing best practice in people management and equipping organisations with the tools to succeed.

Family-owned company Bauder, who deliver flat roof, green roof and photovoltaic solutions, possess a workforce of over 130 employees located throughout the UK and Ireland; however they are all frequently brought together to participate in many employee engagement and personal development initiatives. Earlier this year, the company also achieved, for the third time, a place in the Sunday Times Top 100 Best Small Companies To Work For, together with a 3 star status accreditation for outstanding workplace engagement.

Commenting on the success Angeline Barnes, HR Manager stated “We truly believe our people are our greatest asset. The accolades provide us with a framework to benchmark and measure our practices and people strategies to ensure we continue to develop, improve and ultimately preserve our inherent cultural ethos.”

BS5534:2014 highlights the role of a roofing underlay’s wind uplift resistance in protecting against stormy weather and preventing costly damage. The considerations it outlines (based on a combination of meteorological, geographical and building physics data) not only establish the minimum standards in the new code of practice, but are also essential to long term peace of mind.

However, while much is being made by various underlay manufacturers and suppliers of achieving BS5534:2014 compliance, the picture may not be quite so straightforward – especially when you consider that a key part of the revised standard refers to altitudes not greater than 100m – and that large areas of the UK are at often surprising heights above sea level.

For example, one might expect parts of Cumbria, Wales and Scotland to exceed that benchmark… but how about Milton Keynes? Or swathes of Essex, Surrey, Nottinghamshire and Northern Ireland? Could this factor expose some unsuspecting developers and contractors to unnecessary risk and make them vulnerable to falling short of the code – and therefore potentially liable in any insurance claims?
Many parts of the UK & N. Ireland are at an altitude that exceeds the 100m above sea level benchmark stated in the new BS5534:2014 code of practice, which may affect compliance and requires very careful choice of roofing underlay.
With world weather looking increasingly unpredictable (and litigation on the rise) anyone specifying a membrane would do well to ensure that, like their project’s roof, everything is covered by a membrane with proven reliability and compliance with all conditions, altitude included.

All underlays are required to clearly state, in literature, certification and on roll labels, the declared wind uplift of the material, and on this basis, the end user can determine the suitability of the material for the site’s location. BS5534 splits the UK (including Northern Ireland) into 5 zones, and to be “fully compliant” at a batten gauge of 345mm, the following test parameters must be met:

  • 1,600 N/M2 when a well sealed ceiling is present
  • 1,900 N/m2 when no ceiling or no well sealed ceiling is present
  • 2,350 N/M2when no ceiling or no well sealed ceiling is present and a permanent dominant opening is present on an external face of the building

But, is it that simple? The new standard also requires compliance with the following conditions:

  • Ridge height not greater than 15m
  • Roof pitch between 12.5° and 75°
  • Site altitude not greater than 100m
  • No significant site topography

Clearly, comprehensively meeting all the requirements of BS5534:2014 could prove challenging for contractors also looking for a reliable, easy-install, trouble-free solution. Fortunately, however, there are products which allow unrestricted use anywhere in the UK, in all building characteristics and under all site conditions. Unsurprisingly these come from a name well-known for over 25 years for proven quality, durability and service: DuPont™ Tyvek®.
Peace of mind: All 3 BBA approved DuPont™ Tyvek® roofing underlays are fully BS5534 compliant, allowing unrestricted use anywhere in the UK & Northern Ireland for all building types under all site conditions.
All three BBA approved underlays in the group: DuPont™ Tyvek® Supro, DuPont™ Tyvek® Supro Plus (with integral tape) and DuPont™ Tyvek® Enercor roof offer unrestricted application when tested in accordance with BS5534:2014 – and with no counter battens required in any zone. This allows contractors to be confident that they in are full compliance, not only with the code, but with all the weathering and thermal performance expectations of an advanced breather membrane.

For further information, literature is available to download at www.construction.tyvek.com and expert technical assistance is available on Tel. 01275 337 660, option 2 (in Northern Ireland and ROI please call: 087 922 2740)

One of Europe’s leading manufacturers of architectural aluminium systems, Hueck, has been selected by the housebuilding company Berkeley Group as a preferred supplier of window, door and façade applications.

Hueck-BS-ARTICLE-Portrait
The collaboration will see Hueck’s aluminium systems specified for Berkeley’s residential and mixed use developments in London and the South East.
The recommendation was made by Berkeley’s Supply Chain Task Force after the careful consideration of Hueck’s products and manufacturing capacities of its UK fabricators, as well as the bespoke design services and advanced testing facilities offered by the building envelope specialist.
Leon Friend, project development director for Hueck UK, commented: “Berkeley Group were looking for trusted suppliers they could recommend to their constituent companies for effective integration in future projects in order to add value and reduce risks.
“As one of the most experienced providers of aluminium window, door and façade systems in Europe, Hueck are able to ensure great construction flexibility and a truly bespoke approach in order to provide our clients with a perfectly tailored solution for their projects.
“We’re delighted to have been named as preferred suppliers, and we look forward to our collaboration,” added Leon.
Hueck is a globally active company, and one of Europe’s largest and most innovative aluminium extruders, with a 200 year track record of groundbreaking engineering. A specialist in both bespoke solutions, as well as standard systems, the company offers a wide choice of profiles, all of which are designed to integrate with each other. Hueck’s Lambda range alone consist of 13 different window systems, and 7 door systems. In addition, the company offers the innovative Trigon range of façade systems and the Volato sliding door system.

For more information please visit www.hueck.com

Cembrit has developed a Fibre Cement Slates guide to provide specifiers, craftsmen and trades people with the relevant information for the successful design and installation of pitched roofing with the ever popular fibre cement slates.

The book demonstrates how all forms of slating and fibre cement technology offers users peace of mind not available from other suppliers and highlights the wide range of slates and accessories the company offers. The 80-page document, entitled ‘A Guide to Double Lap Slating with Fibre Cement Slates’ provides a full explanation on technical specification, design considerations, colour availability and installation advice.

“Cembrit has been manufacturing fibre cement products for over 80 years” explains Ged Ferris, Marketing Manager of Cembrit. “The content of the brochure draws on that depth of experience to offer detailed advice to anyone wanting to specify and install fibre cement slates. Fibre cement man-made slates continue to grow in popularity due not only to the cost and installation benefits but also aesthetic advantages over concrete tiles. Our aim is to support this move by providing a useful document that covers the key aspects of fibre cement specification.

The Cembrit range of fibre cement slates has grown over the years and now includes Westerland, Moorland, Zeeland, Jutland and Diamond, all offering their own unique appearance. The slates are complemented by matching ridge, ventilation and fixings. Manufactured to the highest European standards using Portland cement together with a formulation of superior blended synthetic and cellulose fibres, Cembrit fibre cement slates are finished with a high quality, semi-matt acrylic coloured coating to the face and edges and a tinted, high performance binder to the back face. Cembrit fibre cement slates are the most accredited on the UK market.

To download the brochures and to find out information on all other Cembrit products, visit www.cembrit.co.uk