Unilife offers high-quality accommodation for students in Guilford, Southampton, and Winchester, providing premium student accommodation with a focus delivering a high-quality student experience.

With the availability of accommodation one of the factors students consider when choosing which university to study at, Unilife was looking to expand the accommodation on offer at the main campus of the University of Surrey in Guildford.

Unilife turned to Stelling Properties, one of the UK’s leading modular development and construction companies, when the need for more student accommodation arose.

Student accommodation has to be affordable, comfortable, have a location close to the campus, and, ideally, be quick to construct to minimise disruptions on campus during the academic year.

Stelling designed a six-storey accommodation block with 99 studio bedrooms and communal areas that could be mainly manufactured off-site as modular units. Each of the studio bedrooms has space for a bathroom, a study corner, a bed, and a kitchenette.

By manufacturing the modules offsite, Stelling was able to produce high quality units very quickly, completely independent of the weather conditions onsite. It also meant that, as soon as the groundworks had finished and the slab was ready, the accommodation block could be assembled because the units were being built at the same time as the groundworks.

“The planning process for off-site projects of this size is slightly different from traditional construction projects,” explains Jordan Griffiths, project engineer at Stelling Properties. “The design has to be absolutely perfect before we go onsite. It’s slightly more complicated and there is more work upfront. Once we are installing the units onsite, it is too late to make major design changes.

The solution was found with ROCKWOOL RWA45 non-combustible stone wool insulation, which was used for the floors, walls and ceiling of each accommodation unit.  “It is really important that all teams involved, client, architect, factory, and onsite, communicate regularly and clearly to make projects like this successful. There is very little room for error. For example, the interfaces between the units and the groundworks can be challenging. We work on +/- 2 mm tolerance in the factory, while onsite the tolerance can be +/- 10 mm. Each team needs to be absolutely clear about what is expected.”
A module takes about 10 days to make in the factory. Once on site, the module can be moved from the lorry to its final position in four minutes. On average, Stelling installed eight to 12 modules per day.

The whole block is built with steel frames and thin wall metal partitions. While steel frame buildings are known for their durability, they also present a challenge by causing thermal bridging, resulting in higher thermal loss than buildings made from wood and bricks.  In addition, thin metal walls conduct noise easily – presenting an acoustic challenge for lively student accommodation.

As a result, special attention was given to the overall insulation of the new accommodation block. The solution was found with ROCKWOOL RWA45 non-combustible stone wool insulation, which was used for the floors, walls and ceiling of each accommodation unit. ROCKWOOL RWA45 is known for its thermal and natural acoustic properties, but also for its fire resilience capabilities. What’s more, RWA45, like all stone wool insulation, will maintain its performance over the lifetime of the building1.

“We have been working with ROCKWOOL on many of our projects and know the products well,” adds Jordan Griffiths. “Working with the ROCKWOOL technical support team, we very quickly established that RWA45 was the right insulation for this project.”

In time for the new academic year, Unilife will open new high quality, safe and comfortable accommodation close to the university and Guildford town centre.  Interruption to the town itself and the university campus was kept to an absolute minimum due to the quick installation of the prefabricated accommodation modules.


1. In tests on materials from real-life construction sites, stone wool has been shown to retain its insulating properties for more than 65 years without a drop in performance. Testing done at Danish Technical Institute (DTI) in 2023

CLICK HER for more information of ROCKWOOL RWA45



JACKON by BEWI has two construction systems, the JACKODUR® Atlas insulated raft system and THERMOMUR® Insulating Concrete Formwork (ICF), which integrates insulation materials into the concrete formwork, totally revolutionising the way a house is constructed. 




JACKON by BEWI Building Systems exceed the u-value targets of the latest Part L building regs. JACKON by BEWI’s THERMOMUR® 350 Super Block is one of the most energy efficient building systems currently available. It has a U-value of 0.15 straight out of the box, ahead of the required maximum of 0.16 U-value on external walls – part of the requirement that new homes emit 31% less CO2 under the Part L Building Regulations.

ICF constructions have been achieving the new targets for years in their basic configuration, with no “add-ons”, while other types of constructions have had to push their limits in terms of cavities, ties and expensive insulating material in order to achieve the existing levels of thermal performance.

JACKODUR® ATLAS uses XPS (extruded polystyrene) to create an insulated floor slab, while THERMOMUR® ICF uses EPS (moulded expanded polystyrene) to create the formwork. JACKON by BEWI has 60 years of expertise in manufacturing these products, which, in addition to the thermal efficiency benefits, also enable a house to be constructed more quickly and with less waste than other techniques.

The company also offers the market-leading JACKOBOARD® range of waterproof, weight-loading and thermally insulating construction boards for wetrooms and showers.  There is no need to tank wetrooms constructed using either with a waterproof membrane or a paint-on solution, because JACKOBOARD® is manufactured from 100% waterproof XPS. This saves the installer both time and money, since a separate tanking system is not required and only the joints where the boards meet need to be taped.





Kingspan unveils new QuadCore Lower Embodied Carbon range – QuadCore LEC


QuadCore LEC has been developed specifically to help reduce the carbon footprint of the buildings it is used on. Using comparative Lifecycle Assessment Data (LCA) data to the EN15804-A2 standard, this breakthrough in insulated panel technology demonstrates a 41% reduction* in embodied carbon in modules A1-A3 (product stage) for QuadCore AWP in a 100mm thickness. The first products in the QuadCore LEC range will be in available in Q1 2023 in the UK and Irish markets.

Further reductions in the embodied carbon of the QuadCore LEC range are expected between now and 2030 and are underpinned by the business commitment to Net Zero Carbon manufacturing by 2030, the introduction of an internal carbon charge, and the investment in H2 Green steel – a company pioneering the manufacture of steel using hydrogen instead of fossil fuels.

Mike Stenson, Head of Innovation for Kingspan Group explained “As a business we are committed to developing high performing, energy efficient, building envelope solutions that help minimise the carbon footprint of buildings over the whole life cycle. Creating products with reduced embodied carbon and enhanced potential for circularity is key to achieving this.

QuadCore is already one of the highest performing insulation technologies in terms of thermal efficiency (underpinned by a 25-year thermal warranty) which could enable higher energy and carbon savings through the operational life of the building. This is the first step on our journey to reducing the embodied carbon of our products and we anticipate some major milestones by 2030 to drive that down even further.”

The new QuadCore LEC insulated panel range will have all relevant independent testing and certification for UK & Irish markets.



*Quadcore AWP LEC LCA shows a 41% reduction in LCA modules A1 – A3 (product stage) when compared to existing Quadcore AWP LCA to the EN15804-A2 standard for a 100mm thickness. The LCAs for QuadCore KS1000RW and QuadCore Coldstore are currently going through the verification process and EPDs (Environmental Product Declarations) will be published ahead of the products launching in Q1 2023. The 41% reduction is achieved through raw material changes. When comparing modules A-C (product stage, construction process stage, use stage, end of life stage) the overall reduction is 17%.




UK: +44 (0) 1352 716100   IRE: +353 (0) 42 9698 500





Foam insulation that expands and contracts ‘could save 40% of cooling energy’

A ‘programmable’ insulation foam that expands in hot weather and contracts when temperatures drop could cut the energy used to cool homes by 40%, according to its creators.

Developed by researchers at the Fraunhofer Cluster of Excellence Programmable Materials in Freiburg, Germany, the foam is aimed at enabling widespread reductions in energy consumption.

Air conditioning devices “devour a lot of energy”, the researchers said, contributing to carbon dioxide emissions and climate change. They hope that programmable home insulation could replace air conditioning systems in future.


“There is huge potential here – up to 40% of the cooling energy can be saved in this way,” said researcher Dr Susanne Lehmann-Brauns.

The programmable insulation is based on a foam that changes shape depending on the temperature – at high temperatures its pores open and the material expands, but when it cools the pores close and it contracts. Unlike conventional shape memory foams, the researchers said the process is reversible and can happen “over and over again”.


Used in a house, the foam elements could expand during the heat of the day to seal ventilation gaps between the walls and their cladding, preventing hot air from entering. At night, it would contract and open the ventilation gaps, allowing fresh air to circulate and cool the building.

The programmable material could also enable high heat transport capabilities in heat pipe applications, the researchers said, or programmable heat storage.

Kingspan Kooltherm Pipe Insulation and The Kingspan KoolDuct System have been fitted as part of a new training school developed by Nuenta and Ecoforest, supporting installers to make the transition to new, low carbon heating approaches.

The state-of-the-art Ecoforest UK training school in Cannock was officially opened at the start of July. The facility is one of eight around the world and offers a 2-day training course where attendees have the opportunity to get hands-on with a range of technologies including inverter driven ground and air source heat pumps. The centre also provides online courses discussing a range of topics including the environmental and economic benefits of the low-carbon approaches.

In addition to showcasing the latest developments in these technologies, the training courses also emphasise the importance of maximising system efficiency to deliver truly low carbon buildings. This has been put into practice for the facility’s specification, which features leading passive solutions including Kingspan Kooltherm Pipe Insulation and The Kingspan KoolDuct System.


Craig Baker, Technical Director at Nuenta commented:

“We are delighted to be able to open the facility, helping to address the urgent need for installers trained in the use of low carbon technologies. The Kingspan Technical Insulation products installed in the centre help to showcase best practice and are also helping to reduce operational costs for the school.”


The Kingspan KoolDuct System is fabricated from pre-insulated panels and offers a number of benefits over conventional lagged sheet metal alternatives. It is formed from lightweight, insulation panels which can be quickly and easily fabricated into ductwork and installed in long-runs. Ductwork fabricated from the system can also achieve air leakage rates which are a fraction of those of typical rectangular sheet metal ductwork. This highly airtight design, in combination with the premium performance insulation core within the KoolDuct panels, is expected to minimise the energy demand of mechanical ventilation systems within the centre.

Kingspan Kooltherm Pipe Insulation was fitted on pipework across the facility. The product provides one of the most thermally efficient pipework insulation solutions, helping to ensure the desired level of thermal performance could be achieve with a minimal thickness of insulation. The product also holds Eurofins Indoor Air Comfort Gold certification, recognising it as having best-in-class low VOC emissions.

To further raise system performance, Kooltherm Insulated Pipe Support Inserts were also installed on the project. These help to effectively isolate the system pipework, limiting thermal bridges at the support, which can account for a significant amount of heat loss from heating and domestic hot water pipework. The inserts also help to ensure the continuous vapour barrier is carried to the support systems.

Both Kooltherm Pipe Insulation and The Kingspan KoolDuct System are available with free BIM product objects which can be freely downloaded from bimstore.co.uk. Additionally, both products are supported with Environmental Product Declarations (EPDs), which are available to download from the Kingspan Technical Insulation website, providing in-depth lifecycle information about the products.

The Centre also features a range of technologies from Zehnder.


Chris Kemp, Business Development Manager at Zehnder Group, added:

“The creation of the new Ecoforest training facility in Cannock has been a fantastic joint project to work on and we’re all delighted with the results. Not only has it provided new installers the opportunity to get trained on the ComfoAir Post, it showcases the benefits of the products.”

“We all know that efficient and environmentally friendly heating and ventilation is vital for the future of the sector. Government has very ambitious targets of achieving some 600,000 new heat pumps to be installed across the UK every year. We are currently suffering from a massive skills shortage in our sector and this goes a small way in starting to address that need.”

For more information:

Tel: +44 (0) 1457 890 400 

Email: info@kingspaninsulation.co.uk




NyRock® Cavity Slab 032 combines the UK’s lowest lambda rating for stone wool with acoustic and fire performance, plus space saving capabilities

ROCKWOOL has launched NyRock® Cavity Slab 032 providing specifiers with a low lambda, non-combustible stone wool slab for full and partial fill masonry cavities that enables a thinner wall construction.

NyRock Cavity Slab 032 has been developed using NyRock technology, the manufacturer’s patented production process that creates a more efficient fibre structure than traditional stone wool products. With its 0.032 W/mK thermal conductivity value, users can achieve a U-value of 0.18 W/m²K with a thickness of 150mm, depending on construction type, which is 25mm thinner than standard stone wool cavity products within the same wall build up.

As with all ROCKWOOL stone wool insulation, NyRock Cavity Slab 032 can withstand temperatures in excess of 1000°C, achieving the highest Euroclass A1 non-combustible reaction to fire classification. It also benefits from a high density semi rigid composition meaning it will not slump in the cavity and retains the same thermal and fire resistance properties more than 55 years after installation according to independent research.[1]

NyRock Cavity Slab 032 comes in 455mm widths to suit standard vertical wall tie spaces and achieves a closely knitted joint with adjacent slabs, without the need for taping of the joints. This helps eliminate gaps allowing for continuity of insulation across the cavity.


“Energy efficiency is a very real and immediate challenge for the construction sector,” said Paul Barrett, Head of Product Management at ROCKWOOL UK. “Alongside the need to improve the thermal effectiveness of existing buildings against a backdrop of rising energy bills, our eyes must also be on the more onerous requirements of the Future Homes Standard and the UK’s wider 2050 net zero carbon target too.

“NyRock Cavity Slab 032 gives specifiers a new level of thermal performance for stone wool alongside spacing saving capabilities, and acoustic and fire performance that are equally critical when providing occupants with comfortable and safe spaces. These performance benefits are also backed by a strong commercial offer including a competitive price point and installation efficiencies such as ease of cutting and fitting on-site.”


Having undergone an extensive testing programme, NyRock Cavity Slab 032 is suitable for new build, renovations and extensions and has British Board of Agrément (BBA) certification[2] for full and partial fill applications.

All ROCKWOOL stone wool insulation comprising NyRock technology have water repellent properties and can be recycled indefinitely. Stone wool insulation is manufactured from naturally occurring volcanic rock that is abundant in supply as it is continually replenished by the earth’s crust.


CLICK HERE For more details on NyRock Cavity Slab 032 and the wider NyRock range


[1] FIW (German test and research institute), Durability Project Mineral Wool, 2016

[2] BBA Certification 22/6252

The latest development of Kingspan’s unique, self-blended insulation technology, ‘QuadCore 2.0’, demonstrates that innovation and product performance enhancement do not need to come at the sacrifice of our planet. QuadCore 2.0 is made with a formulation containing a raw material that uses 40% recycled PET. This innovative formulation has satisfied the requirements for a two-hour fire resistance in third-party fire tests for both insulation and integrity — making it the first closed cell insulated panel system to ever achieve this rating.

QuadCore 2.0 is a key step towards one of Kingspan’s Planet Passionate goals to ensure Kingspan recycles 1 billion PET bottles by 2030 and for QuadCore Technology to utilise recycled PET by 2025. The EN1364-1 fire resistance test was conducted by WarringtonFire using our next generation QuadCore 2.0 with 220mm thick, 1100mm wide coldstore, through fix insulated panels, satisfying the requirements of EI 120 and obtained without the need for stitching screws to secure the panel joints. During testing the furnace reached a temperature in excess of 1000’C.


Mike Stenson, Head of Innovation commented on the breakthrough:

“Since its launch in 2016, our QuadCore Technology has been at the forefront of closed cell insulation innovation, with an unrivalled combination of thermal efficiency, fire performance, environmental credentials and warranty offering. Within our innovation and chemical development teams we are continuously striving to take each of these performance factors to the next level, creating an insulation technology truly designed with future building performance in mind. The inclusion of recycled PET as a raw material in our formulation is a key objective for us globally, as we work towards a more circular approach, with our new breakthrough significantly enhancing performance. The expertise in blended chemical systems available to us following the acquisition of Synthesia in 2017 has helped to make this step change in both sustainability and fire performance possible- as this EI 120 test result shows.”


The QuadCore 2.0 insulated panel range is currently going through a further rigorous testing and certification programme, including reaction to fire and various insurer backed standards. Once completed, the first products containing the new core are expected to be ready for market in 2022.


What is EI 120?

Fire resistance is a measure of how long construction assemblies can withstand and contain a fire.  The measurement is expressed in Integrity (E) which is the ability to withstand fire exposure on one side whilst stopping the passage of flames and hot gases through to the unexposed side for a period of time, and Insulation (I), the building element will also be able to stop the passage of heat through to the unexposed side up to a maximum non-fire side surface temperature value for a period of time. EI 120 means that the product provides certified integrity (E) and insulation (I) performance for 120 minutes.


For more information, please contact:


UK: +44 (0) 1352 716100

IRE: +353 (0) 42 9698 500

Web: www.kingspanpanels.co.uk  

The University of Warwick’s Interdisciplinary Biomedical Research Building (IBRB) is breaking new ground in building design. The £33m facility has been constructed with a cutting-edge offsite approach featuring Kingspan Kooltherm Pipe Insulation and Kooltherm Insulated Pipe Support Inserts.

The research building, designed by Hawkins/Brown and Fairhursts Design Group, will provide world-class facilities for over 300 biomedical researchers helping to deepen our understanding of the origins and mechanistic basis of diseases of the brain and body. Working closely with the project team, which included Willmott Dixon and Hoare Lea, NG Bailey has manufactured and assembled much of the mechanical, electrical and plumbing installations at its specialist offsite facility in Bradford. This specification included the installation of over 20,000 lm of Kingspan Kooltherm Pipe Insulation and Kooltherm Insulated Pipe Support Inserts, with onsite fitout carried out by specialist contractor Insulation & Cladding Services Ltd (ICS).

The University of Warwick set a target to complete at least 50% of the building work using offsite methods. NG Bailey helped to achieve this with a bespoke, five-storey ‘megariser’, which contains all of the buildings’ primary wet and dry services. The riser was delivered to site in eight sections, greatly reducing the number of deliveries and disruption to neighbours and allowing the installation to be completed in two days compared with the 15 weeks it would have taken with traditional methods. The sections were constructed horizontally at the NG Bailey facility and were lifted and installed using a crane – cutting time spent working at height.

As with all offsite work, careful pre-design was essential to ensure the ‘megariser’ and services were aligned correctly once in-situ. The project team collaborated closely with the use of BIM technologies and this process was supported through the specification of Kingspan Kooltherm Pipe Insulation and Kooltherm Insulated Pipe Support Inserts. These products are supported with bespoke BIM objects which can be freely downloaded from www.bimstore.co.uk This allowed service engineers and designers to accurately plan and position pipework and supports. With their leading thermal performance, the products also contributed to the project’s sustainability targets.


Stefan Watson, Offsite Integration Manager, Midlands, at NG Bailey explained: “By using offsite manufacture to produce the MEP elements, we removed circa 11,000 working hours from the project and reduced deliveries by around 190 HGV vehicles. The Client set the challenge of at least 50% of the construction being delivered through offsite techniques – and this was achieved.

“This greatly reduced the carbon footprint of the project and the completed building is expected to achieve a BREEAM ‘Excellent’ rating. Building services play a significant part in reaching this target and we carefully developed a specification which will keep the building’s energy use to a minimum.”

Kingspan Kooltherm Pipe Insulation is one of the most thermally efficient pipe insulation materials in common use. This allowed the project team to effectively insulate the full range of pipe diameters on the project with a minimal thickness of insulation, supporting a faster, installation both in the factory and as part of the onsite work completed by ICS.
The project team also carefully addressed the risk of heat loss through pipe supports by installing Kingspan Kooltherm Insulated Pipe Support Inserts. The premium performance inserts effectively limit thermal bridging through the supports and form an effective vapour barrier. For larger diameter pipework, the inserts are supplied with a metal spreader plate which prevents insulation compression, ensuring the efficiency of the pipework is maintained over time.

The specification of the Kingspan Technical Insulation products also supported work to achieve credits within BREEAM assessment. An Environmental Product Declaration (EPD) certificate for Kingspan Kooltherm Pipe Insulation can be accessed at www.greenbooklive.com. The product is also certified as Eurofins Air Comfort Gold, recognising it as having low emissions of volatile organic compounds (VOCs) and both products are manufactured under an environmental management system which is certified to ISO 14001:2015.
With Kingspan Industrial Insulation’s free Pipeline Technical Advisory Service, which can be contacted on 0808 168 7363, clear advice and guidance can be accessed at every stage in a project.


Heat Networks are an increasingly popular solution for urban developments, promising efficient heat for occupants, reduced maintenance, and a much simpler transition to low carbon heat in the future. One challenge these projects pose is that domestic hot water pipework must be maintained at a constant warm temperature so that it is always available for use. As a result, gaps in the insulation around services, or use of insufficient pipe insulation, can raise heating costs and increase overheating risk in the summer months.

To address this, developers are increasingly looking to offsite approaches, allowing services to be fabricated in modules before being installed on site. In addition to accelerating onsite processes and ensuring consistent quality, this can also allow for improved access during fabrication and pre-testing prior to installation. To further support project teams, CIBSE has released CP1 Heat networks: Code of Practice for the UK (2020), setting over 500 minimum requirements for these systems.

CP1 and the growth of heat networks
Heat networks distribute heat from an energy centre/s to either an individual building (communal heating) or multiple buildings (district heating). One of the key advantages with this technology is that it is ‘fuel agnostic,’ meaning a whole range of sources can be used for the energy centre. It is therefore possible to install a network which initially uses a gas-powered energy centre, then transition to a low-carbon alternative as they become available.
Whilst this technology has been used globally for decades, it is still relatively new here in the UK and CP1 (2020) has been designed to assist effective deployment. The insulation of secondary pipework (the pipework that runs inside the building) provides a good example of how it works— providing simple minimum requirements whilst encouraging specifiers to look to enhanced specifications.

Pipework Insulation
Objective 3.9.7 of CP1 provides minimum insulation thicknesses for different secondary pipe diameters. In most cases, a 50 mm thickness of either phenolic or mineral fibre pipe insulation is required.
The use of minimum insulation thicknesses, rather than heat loss parameters, is designed to provide clarity but also has limitations. In particular, phenolic insulation is notably more effective at preventing heat loss at a given thickness than mineral fibre. This means that heat losses may increase by between 30% and 39% when the minimum mineral fibre specification is used instead of the phenolic equivalent.
To address this, CP1 also requires project teams to carry out pipework heat loss calculations at the Feasibility Stage (Stage 2) and to create detailed pipework insulation specifications based on project specific parameters at the Design Stage (Stage 3). The benefits of enhanced pipe insulation specifications should be considered during this process, both to reduce energy demand, and minimise overheating risk.
Additionally, CP1 also highlights the importance of ensuring a continuous layer of insulation across all areas of the services and the use of “rigid low conductivity inserts” to prevent heat transfer through pipe support.

East Village
Alternative Heat recently put CP1 principals into action when developing the design, fabrication and delivery of shell and core service packages as part of the heat network for N06 East Village in London. The project features 524 build-to-rent apartments at the former London 2012 Athletes’ Village with the project team including M&E consultants, chapmanbdsp, M&E contractors, Borough ES, and thermal insulation contractors, Commercial Insulation Services.

To ensure efficient delivery, the project was completed to Level 2 BIM and Alternative Heat supplied services in a number of modules, including skid mounted plantrooms, mechanical utility cupboards, laterals and risers which could be simply lifted and installed. Kingspan Kooltherm Pipe Insulation and Insulated Pipe Support Inserts were specified for a range of Low Temperature Hot Water (LTHW) and Boosted Cold Water System (BCWS) pipework within the modules to meet key performance criteria. As Damien McMullan from Alternative Heat explained:
“The development uses a district heating system, so it was essential to keep heat losses from the pipework to a minimum. For this reason, the specification from chapmanbdsp required the pipework to be highly insulated and compliant with the CIBSE CP1 Heat Networks guidance. The combination of Kingspan Kooltherm Pipe Insulation and Insulated Pipe Support Inserts allowed us to easily meet these requirements across the different pipe diameters.”

Complete Solution
Modular building services solutions offer clear advantages for heat networks. By ensuring these meet the requirements of CP1, and looking at how you can go beyond these, it should be possible to maximise the long-term cost, emissions and energy savings on these projects.


The world is reaching a critical tipping point with global warming. Every year, climate records are being routinely broken, CO2 levels in the atmosphere rising annually, and sea levels continuously creep up as vast ice sheets are melting and collapsing. In 2019, the UK Government declared a national climate emergency, meaning everybody has to take action against this global threat.

To help protect the planet’s eco-system from being plunged into a whole new state, the thermal performance of buildings will be crucial in the fight against climate change. SFS, building envelope specialists, has developed a whitepaper that explores the effects of rainscreen subframe systems on the overall thermal performance of external walls, the specification process, and unique solutions to reduce heat loss through the building envelope.
The climate change emergency
The biggest problem facing buildings today is the performance gap, where buildings use more energy in their operation than originally predicted by compliance calculations. It’s not uncommon for quoted heat loss and/or energy consumption of a building to be up to ten times greater than forecast.
It’s no surprise that future building standards need to be tighter to bring down such high levels of heat loss and energy consumption. While improvements to Part L of the Building Regulations have been mapped out to the ‘Future Homes Standard’, there is still little focus on achieving the quality assurance that would ultimately avoid the performance gap. At the same time, construction products and techniques must continue to improve to bring operational energy efficiency in line with designed energy efficiency.

Calculating an accurate U-Value
Energy efficiency can only be tackled by understanding the thermal performance of rainscreen walls, where building fabric heat losses are most prevalent as external walls are responsible for 35% total heat loss of a building. Part of that process for understanding how much heat loss a building has is finding out its U-Value.
However, when a U-Value is calculated, it must take into account where insulation is penetrated by the thermal bridges of a rainscreen subframe system. Many materials which bridge the insulation layer have a higher thermal conductivity than the insulation layer, creating higher rates of localised heat loss.

Reducing heat loss through rainscreen subframes
The careful selection, specification and installation of an optimal thermally efficient subframe system, supported by the appropriate thermal modelling is crucial.
Part of that specification is choosing the right rainscreen subframe system. Developments in recent years means that newer systems now have lower thermal conductivity, allowing contractors to choose a solution to lower the loss of heat.
The solution
The relationship between the design and realisation of a building is key for greener building projects. Only by having the right specification for your rainscreen subframe can you guarantee that your external wall construction performs as well as intended.

So, what is the solution? SFS has been working on rainscreen subframe solutions that provide key energy saving contributions to any project featuring cladding.

To find out more how the SFS’ NVELOPE® system can be optimised to your project to achieve the thinnest build-up and make your building greener, CLICK HERE to download the whitepaper.