Fassarend timber frame system is here

Fassa Bortolo, one of the leading Italian manufacturers of renders and integrated building systems has brought its popular Fassarend timber frame system to the UK market, making off site construction easier than ever.

To meet the soaring demand for timber frame and modular builds, this system is made with the potential to be installed off or onsite. Using a four-stage application process, light-weight carrier boards are mechanically fixed onto the frame batons and finished on site with Fassa’s high quality, thin-coat render, either by hand or by machine once the project reaches the final stages.  

With superb insulation options, this system can be combined with a mechanical external wall insulation (EWI) rail system, in the form of mineral wool or Expanded Polystyrene (EPS) inside the timber frame, to help the build reach a required u-value and reduce emissions, as well as protect the structural integrity of the frame from any foreseeable damage.

The Fassarend timber frame system has been third party certified by KIWA BDA and approved by the National Housebuilding Council (NHBC).

 

www.fassabortolo.com

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‘Flight’ connections at Manchester Airport

Invisible Connections is currently working with precast concrete and DfMA specialist SCC Design Build to construct stair cores at Manchester Airport.

 

Manchester Airports Group (MAG) is undertaking a transformation programme that will position the airport as a ‘Global Gateway’, offering more routes and creating increased economic growth in line with aviation forecasts.

As part of this development the airport is expanding its terminal facilities, apron space and customer car parking facilities to accommodate increased demand.

With many MSCP projects already to its name, SCC Design Build (working for BAM) successfully manufactured and constructed the precast concrete frame and cores (incorporating flights and landings) at the newly completed 6,500 space ‘meet and greet’ MSCP at Terminal 1 and Terminal 3.

As part of its innovative build process, SCC Design Build (‘SCC’) used telescopic connectors by Invisible Connections extensively throughout the structural frame and cores, being SCC’s tried and trusted connection solution for rapid construction.

With a clear pedigree in car park construction and an existing presence on the airport, SCC was the natural choice by Galliford Try for the newest 7,669 space car park that will link to Terminal 3 and have buses to the other terminals.

Although a steel frame was chosen for this latest car park, SCC was appointed to construct the stair cores in precast concrete, chosen for its fire properties and the stabilisation of the structural steel frame.

There are 10 stair cores in total, which vary in height up to 5 storeys. All 10 cores incorporate precast flights and landings, with 6 of the cores also housing the lift-shafts.

Building on the success of several previous project collaborations, Invisible Connections was chosen by SCC for its landing-to-wall system of telescopic connectors. The RVK101-30 pinned connection detail was specified to tie landings to the core walls (tying into REDiBOX PIN recess formers) thereby satisfying the Engineer’s design requirements for robustness.

It’s increasingly common to combine precast concrete stairs and landings with core walls which are either precast or poured in-situ. When connection methods are left as an afterthought, using traditional rolled steel support angles is often the only practical, yet inefficient, fixing solution.

With a little up-front planning, there’s much to gain by incorporating telescopic connectors, which come with a host of advantages; such as improved health and safety, robustness compliance, and significantly improved cost effectiveness. Indeed, a recent study found that using telescopic connectors instead of rolled steel angles reduced man hours by 80%, which contributed to a total 33% reduction in direct costs.

 

www.invisibleconnections.co.uk

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Revolutionary Thermal Flooring Solution

Throughout the design, manufacturing, delivery and installation stages, Milbank Concrete Products offer one of the most comprehensive and professional service packages, providing a range of precast concrete products including: balconies, beam & block flooring, bespoke concrete products, ground beams, hollowcore flooring, helical stairs, rail products, sea defence & flood solutions, stadia products and straight stairs & landings.

Following on from market research and the identification of the need for an affordable, cost effective and efficient thermal floor arrangement, Milbank Concrete Products have recently launched their new and improved insulated concrete flooring solution, WarmFloor Pro.

WarmFloor Pro offers construction professionals a cost-effective alternative to quickly assembling a thermally insulated concrete ground floor over the industry leading competitor brand, Jetfloor, by Forterra (Bison). Reduced initial construction costs and an increase in energy savings make WarmFloor Pro a compelling alternative to a standard beam and block floor. In combination with its certification and A+ Green Guide rating, WarmFloor Pro is proving to be a must have addition to any new, eco-friendly development where keeping heating costs low is paramount.

WarmFloor Pro is suitable for almost any structure, but is most commonly used in housing, from single dwellings to complete housing developments. It offers a simple, cost effective, concrete insulated flooring solution to self-builders and construction professionals alike. Without the need for any specialist tools or skills, installation of WarmFloor Pro is efficient and streamlined whilst minimising waste and emission rates.

WarmFloor Pro works by combining rigid insulation modules (EPS panels) manufactured from lightweight closed cell expanded polystyrene which is laid in-between prestressed concrete beams (either 155mm or 225mm deep) with an EPS top sheet, damp proof membrane and structural concrete topping. If required, underfloor heating can be incorporated with the pipework attaching to the EPS panels with plastic pegs before the concrete topping is applied.

WarmFloor Pro is comprised of 6 main EPS components that are available in two types of EPS; standard issue in white (0.038W/m²K) or an alternative high-performance platinum in grey (0.031W/m²K). The 6 components are made up of Top Sheets – available in depths of 75-150mm, Infill Panels – available in 533mm for nominal 600mm beam centres and 343mm for reduced beam centres, and End Panels – available in both 178mm and 300mm.

EPS end panels are used for both the start and end of the flooring installation. The end panels are inserted at the start of the row with the straight (1200mm edge) opposite to the beam. All units are 1200mm long and can be cut on site to the required length using basic tools such as a handsaw; (minimum 300mm long).

As every building is different, Milbank are well equipped to design your floor to achieve the specific targeted U-Values (reaching as low as 0.07W/m²K) together with the structural layout of the floor to suit. Milbank then manufacture the concrete components and supply the materials (including the EPS panels) directly to your site. WarmFloor Pro is currently available on a supply only or supply and installation basis using their vastly experienced installation teams.

WarmFloor Pro Benefits:

  • Easy to install – does not require any specialist tools or skills.
  • Quick to install – each EPS panel is the equivalent length of 5 standard concrete blocks.
  • Cost effective – WarmFloor Pro is designed to save you money. Faster installation speeds combined with reduced waste and excavation removal allow for an increase in overall savings.
  • Bespoke – a wide range of EPS panel depths and grades are available to satisfy your U-value or budget requirements.
  • Sustainable – WarmFloor Pro is designed to last the lifetime of the building while maintaining its exceptional thermal performance.
  • Clean, safe and easy to handle – lightweight EPS panels only weigh around 2Kg.
  • Underfloor heating compatible – heating pipework is simply held in place using plastic pegs that push into the EPS panels.
  • Proven Technology – now in use for over 10 years.
  • Industry compliant – Milbank WarmFloor Pro is Fully certified and has an A+ green guide rating.

For more information on Milbank Concrete Products or to enquire about their extensive range of products including WarmFloor Pro Insulated Flooring, please visit their website or call them on 01787 223 931.

 

www.milbank.co.uk

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Heat Air Moisture Management in DfMA

 

By Adam Taylor Business Development Manager – Building Envelope – A. Proctor Group

 

In this article Adam Taylor, Business Development Manager – Building Envelope of the A. Proctor Group outlines the need for designers and manufacturers to understand and embrace a best practice approach to heat, air, moisture management in DfMA.

As the construction industry seeks to address the challenges which relate to the UK’s housing shortage and deliver more energy-efficient buildings across the residential and commercial sectors, it is clear that Design for Manufacture and Assembly (DfMA) will form an essential part of the delivery process.

The application of DfMA is ideally suited towards offsite modular construction, with its focus on ease and efficiency of both manufacture and assembly. The benefits of fast-track offsite manufacture for assembly onsite can lead to higher outputs, whilst significantly reducing the project programme time, with less material waste and costs, and fewer delays in relation to snagging and re-working on site.

The A. Proctor Group Ltd as a leading manufacturer of vapour permeable membranes and vapour control layers provides essential best practice advice to designers and manufacturers of offsite modular buildings based upon the proven model of Heat Air Moisture Management (HAMM).

The importance of Heat Air Moisture Management (HAMM) to DfMA

Based upon over 50 years of providing solutions and products for the construction sector we understand that a totally holistic approach is required to DfMA building design. In doing so, the points below consider six core aspects in the process:

  •    Building
  •    Weather
  •    Occupants
  •    Heat
  •    Air
  •    Moisture

For any building to be an energy efficient, healthy, moisture free building envelope there is a clear need to manage the balance of Heat, Air and Moisture movement throughout the process of the building’s life cycle from design, construction, completion and use.

Understanding the importance of these key elements upon the building envelope is crucial to the successful construction and operation of a building. Architects, designers, and off-site construction manufacturers must seek to understand the science behind our buildings, managing the external and internal forces, which impact on the quality of the completed building, its performance in use, as well as the health of its occupants and the wider environment.

Airtightness and modular building design

There is absolutely no question that an integral part of modern building design is influenced by energy efficiency. In the EU it is estimated that buildings account for approximately 40% of energy consumption and are responsible for some 36% of CO2 emissions. Closer to home, around 45% of UK CO2 emissions come from the built environment, (27% from domestic dwellings and 18% from non-domestic).

As thermal insulation requirements have increased over the last few years, the proportion of energy lost through air leakage has become more evident. The ever-increasing thermal insulation required will, however, be rendered largely ineffective unless the airtightness of the structure itself is addressed. Air leakage greatly reduces the effect of thermal insulation; therefore if energy efficiency is to be improved within buildings, this is the most critical area to focus on.

In addition to improved insulation, energy efficient heating systems will also be ineffective if warm air can escape the building and cold air can seep in. This is reflected in the fact that total space heating costs in an airtight construction may be considerably less than in a leaky one.

Air leakage through cracks, gaps, holes and improperly sealed elements such as doors and windows can cause a significant reduction in the performance of even thermally insulated envelopes.

Effective airtightness design

The two main ways to achieve airtightness in the building envelope are internally or externally, or in other terms, “inside of the services zone’ or ‘outside of the services zone’.

Traditional use of internal air barriers can be more complex and costly to install, due to the need to accommodate building services such as electrical, lighting, heating and drainage systems. An internal air barrier is only as good as it’s installation. If all the service penetrations are not adequately sealed, performance will be compromised.

For many years, external air barriers have been commonly specified in North American building design and construction. By moving the air barrier to the external side of the structural frame, external air barrier systems such as Wraptite® from A. Proctor Group allow for an almost penetration-free airtight layer, which can be installed faster and more robustly. This offers an effective but simple system comprising a self-adhesive vapour permeable air barrier membrane, plus vapour permeable sealing tape, Wraptite Corners and Wraptite Liquid Flashing, and provides effective secondary weather protection while preventing trapped moisture and air leakage. Far simpler than internal options an external air barrier system like Wraptite will maintain the envelope’s integrity, with less building services and structural penetrations to be sealed, and less room for error.

Fixing Options for Air & Vapour Control

The traditional forms of VCLs and airtightness membranes will often require mechanical fixing. In the case of timber structures using steel staples, and on concrete using a separate double-sided adhesive tape. The self-adhered nature of Wraptite allows for a simple and fast installation process, minimising the use of additional sealants and tapes, and requiring no specialist contractors to achieve a robust result. This one-step solution provides both a damage resistant air barrier layer and effective secondary weather protection in one installation process, allowing a wind and watertight envelope to be achieved more quickly than using traditional methods.

TopHat incorporates Wraptite into the design

One of the UK’s leading modular housing manufacturers TopHat has successfully incorporated Wraptite into the design of its high-quality timber-framed homes.  Wraptite is a patented external air barrier membrane system, which offers manufacturers and designers of modular and off-site buildings the ability to reliably and comfortably exceed current airtightness requirements. Wraptite is the only self-adhering vapour permeable air barrier certified by the BBA and combines the important properties of vapour permeability and airtightness in one self-adhering membrane.

The A. Proctor Group provides a range of high-performance membranes to address the requirements of heat, air, moisture management within the building element, and provides comprehensive guidance using modelling & analysis tools to ensure compliance and guide designers and manufacturers on best practice related to DfMA.

 

www.proctorgroup.com

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The complete commercial package  

Deceuninck Commercial Sales Manager John Duckworth explains how the company’s holistic approach to commercial projects benefits the specifier, contractor and end user.

Windows are a key part of the build process, providing natural light, protection from the elements and ventilation. They also have great architectural importance by helping to define the overall character of a building and create visual interest.

The latest innovations in window technology has given developers and specifiers a choice of materials, styles and designs to choose from. The very best of this technology also works seamlessly with modern construction methods to create the right aesthetics, reduce installation time and improve the building’s overall performance. Choosing the right supplier is critical in this process.

Deceuninck is a leading window systems company with strong ties in the commercial and housebuilding sector. We work with a number of large developers including Crest Nicholson, Catalyst Housing, Countryside Properties and Berkeley Group. Developers choose Deceuninck because our high performance window systems are engineered for aesthetics, with perfect symmetry and balanced sightlines, and they’re tried-and-tested for commercial applications. Linktrusion™ is our flagship window technology that combines pultruded glass-fibre with PVC-U in Deceuninck’s 5000 window for light and strong windows with slim sightlines and outstanding thermal efficiency. In terms of performance and benefits, Linktrusion™ combines the very best of PVC-U and aluminium, and developers love it, often choosing Deceuninck windows over aluminium, and in Deceuninck’s Grey Matt foil on grey substrate, it’s hard to tell them from aluminium.

Commercial partnership

Product is half the story and Deceuninck’s success comes down to our holistic approach to commercial projects. We work closely with developers, specifiers, fabricators and contractors to look at the full picture of how windows work within the build, be it timber frame, steel frame or modular, to get the best results for our clients.

Our commercial team works with partners to ensure products not only meet technical specifications but are correctly installed and perform effectively in the finished project. We supply accurate data and test results on performance and acoustics, a growing and important point of specification. Working with Bluesky Certification and the University of Salford, we’re the first PVC-U systems company to commit to acoustic testing of our full range because it gives fabricator customers a big advantage in the tender process.

The Hinkley Point Worker Accommodation development is an example of a technically demanding project in which 80% of the 1,400 windows were installed into pre-fabricated modules off-site. Working in partnership with fabricator Dempsey Dyer, Deceuninck’s technical team ensured our Tilt and Turn windows met the highest energy and weather requirements both off-site and in installation. Once assembled, the windows passed the most stringent CWCT water testing, normally only used for curtain walling. Deceuninck’s technical team worked with Dempsey Dyer to successfully cut the windows’ decibel rating down by RW35db to RW40db and RW43db, helping to minimise the impact of noise on workers and make a quieter, healthier environment.

The Woodward Building at Imperial College London is another example of Deceuninck’s strong ties with developer, contractor and fabricator. Despite the complex requirements for aesthetics, weather performance, acoustics and safety, Deceuninck and fabricator Dempsey Dyer successfully broke the original specification for aluminium, bringing a 30% saving for the client. Our 2500 Tilt and Turn window impressed developer Berkeley Group with outstanding performance: Class 4 Air permeability; Class 8A Water tightness and Class A5 2000Pa exposure. The windows delivered U-Values of 1.5 and G-Values of 0.27 to prevent overheating in the building. Safety and durability were also important factors, and Deceuninck’s Tilt and Turn window is ideal for high-rise and student developments because it can be locked in the tilt mode for added safety and unlocked by maintenance teams when cleaning is required. The installation process included full EPDM shrouding and on-site water testing, and was completed on time and in full. Due to the success of this project, Berkeley Group has awarded Dempsey Dyer further contracts, and Deceuninck is now an approved supplier for the developer.

Call 01249 816 969 or visit the website to see more exciting commercial case studies and learn more about our commercial work. You can also download Deceuninck’s full product portfolio from the NBS National BIM Library at www.nationalbimlibrary.com/deceuninck-ltd.

 

www.deceuninck.co.uk

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When will Government see the light

The Solar Trade Association underlines current scope for action on “Groundhog Day” CCC 2019 Progress Report to Parliament

 

Commenting on the CCC 2019 Progress Report to Parliament STA Chief Executive Chris Hewett said;

“For four years now the Committee on Climate Change has been urging the Government to get behind the most popular and cost-effective renewables. In what is now surely a national Groundhog Day, we again fully support their calls for technology neutral auctions that provide a secure route-to-market for large-scale solar. On the publication of last year’s Progress Report we said the Government must now surely listen and act. Not only has nothing happened but the policy framework has actually gone backwards for solar.”

The STA is disappointed that there has been no progress in levelling the playing field on market access for large-scale solar, nor progress on a ‘subsidy free’ CfD. Since last year the STA has had to fight off complex and potentially costly changes to transmission balancing charges that would have further damaged the progress of subsidy-free solar schemes, which carry notable risk. The scale of the threat has been reduced, but still remains.

The CCC report also underlines the growing importance of flexibility in the electricity system, but again the STA is fighting off damaging VAT changes that can apply to new solar when it is combined with battery storage for domestic homes. After sustained campaigning by the STA the Government has published its Smart Export Guarantee policy, but has failed to enforce a fair floor price for exported power and there is currently only one market participant.

However, the economics of rooftop solar in commercial and industrial installations is now clearly attractive and the Association is championing investment in solar by the public sector, as well as by households. The STA has long urged the CCC to consider the value of rooftop solar in its analyses, given these markets dominate across most of Europe where the technology plays a major role in delivering Net Zero buildings in all climates. Solar technology also puts the power to act in the hands of a range of players, including councils, businesses and individuals, which is enhanced by synergies with battery storage, EVs and renewable heat technologies.

Chris Hewett said, “Many organisations in the UK will once again share the CCC’s deep frustration at Government inaction. However, we urge the CCC and concerned parties to look very carefully at what can be done right now with rooftop solar, which can be economically attractive and which answers their call to put people at the heart of policy design. For those that are unable to invest in rooftop solar, there are further opportunities to support new solar parks through Power Purchase Agreements and genuine green tariffs. Of course we need to see Government get its act together on climate and energy policy, but the need to act is urgent and we must not wait on them when there is so much that can be done today.”

 

The Solar Trade Association

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Performance Technology Group

Among the many benefits of modular construction is the speed with which a project can be completed, due to the fact construction of modular buildings can occur simultaneously with site and foundation work. By carrying out typically linear tasks simultaneously projects can reach completion 30%-50% sooner than with traditional construction methods.

The value of simultaneity in construction is also one of the benefits delivered by Performance Technology Group. By bringing together expertise and manufacturing capabilities across a wide range of disciplines, PTG are able to reduce the amount of activity required in ensuring a construction project meets fire, thermal, acoustic and other challenges.

Saving Time, Reducing Complexity

Whereas ordinarily, an architect, contractor or installer will have to liaise with multiple contacts across multiple businesses in order to source solutions for their construction project, with PTG there is a single initial point of contact. In principle, a project’s fire, thermal and acoustic requirements can be addressed in a single meeting, with PTG bringing all the necessary expertise to the table. This obviously represents a time-saving for customers (one meeting, rather than several), but there is also a subtler time-saving due to the reduction in complexity.

Complexity, particularly in construction projects, creates numerous opportunities for problems to arise. According to Sven Bertelsen, Senior Research Advisor to Lean Construction (Denmark), “Construction projects are in general rich in plan failure, delays, cost overruns and grief. Construction – along with most phenomena in our living world – must be perceived as a complex system, operating on the edge of chaos.” By reducing this complexity, PTG are able to mitigate the kinds of problems that can undermine and jeopardise the construction schedule.

System Solutions

PTG is also able to use its interdisciplinary structure to produce system solutions that would normally involve an architect, contractor or installer having to interact with a number of separate suppliers.

For example, in rainscreen cladding applications, PTG can bring together sheathing panels, the innovative Chi-Gasket cold-bridging solution (both from the Euroform arm of PTG) with a range of Open State Cavity Barriers from their AIM business to create an effective means of achieving compliance in relation to thermal performance and resistance to fire. PTG can also source and supply thermal insulation and high-performance cladding through their established third-party relationships and robust supply chains.

From Foundations to Fit-Out

PTG are involved at almost every stage of construction. They provide site protection from the very outset of a construction project. They supply both vibration isolation and thermal insulation for foundations. They are involved in every stage of the building envelope’s development, contributing to through-wall solutions to offer resistance to air, water, heat and noise transfer. They’re involved in HVAC solutions for both acoustic and thermal performance. They contribute to the acoustic effectiveness of wall, floors and ceilings, ensuring Part E compliance. Wherever and whenever, for example, an architectural technician finds themselves facing a challenge relating to the material performance of a building project, PTG will have, or will have access to, a solution.

The PTG Roster

PTG currently consists of nine businesses: AIM, CMS Danskin, Euroform, Mayplas, Ockwells, Central Refractories, IMS, Innogain and Insulslab. AIM is a manufacturer of mineral fibre and foam products, specialising in fire stop blocks and cavity barriers. CMS Danskin are experts in soundproofing and acoustic insulation. Euroform specialise in building boards and in ensuring fire and thermal compliance in building facades. Mayplas fabricate and supply a wide range of insulation materials, and specialise in highly bespoke cutting, lamination and encapsulation. Ockwells are a leading supplier of temporary site protection. Central Refractories, as their name suggests, a premier supplier of refractory products and services. IMS are experts in high-temperature insulation. Innogain are the innovators behind a revolutionary solution for through, anchor and precision hole-making in concrete. And, finally, Insulslab offer a complete foundation system, particularly for housing sites with difficult ground conditions.

Mark Fyfe, Group Sales and Business Development Director for Performance Technology Group, said, “We offer an industry-leading portfolio of trusted products, the interdisciplinary expertise to supply with confidence, and with an emphasis on highly bespoke fabrication and ambitious product innovation.”

 

www.sigpt.co.uk

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