40 BUILDING FABRIC
AeroBarrierUK headlines Future of Airtightness event at the Building Performance Hub
A
eroBarrierUK, a trailblazer in air-tightness solutions, took centre stage at the Building Performance Hub event held on
Wednesday, 10th January. This event, attended by devolved government representatives and UK government advisors, highlighted AeroBarrierUK’s Connect Sealing System as a groundbreaking innovation, demonstrating a signifi cant leap towards scaling low-energy, low-carbon homes through reducing draughts. The Future of Airtightness event also
showcased a number of industry innovations, with AeroBarrierUK headlining the days with a live seal of the Building Performance Hub’s Training Suite. This demonstration culminated in an impressive draught reduction two-thirds to achieve outstanding low-energy airtightness
results of 1.23 ACH50, providing EnerPHit- standard airtightness results. Furthermore, AeroBarrierUK’s award-winning system achieved this in under one hour of sealing time, with its targeted and scientifi c sealing system using less than 1.5 litres of material – reducing on-site waste, improving delivery speed and guaranteeing improved energy performance. AeroBarrier Connect, the revolutionary sealing system at the core of AeroBarrierUK’s success, guarantees a specifi c level of air tightness. Using patented technology, the system employs a modifi ed blower door test, pressurizing buildings and applying a non-toxic mist coat to seamlessly seal any leaks. Real- time monitoring of air-tightness levels ensures predictability, repeatability, and reliability for both domestic and commercial projects. The AeroBarrier System addresses gaps as minuscule as the width of a human hair up to 12 mm, achieving air-tightness ratings ranging from the UK building standard of 5 m3
/hm2
to outstanding Passivhaus levels of 0.11 m3
/hm3 . Its effi ciency, proven to be at least
three times faster than traditional methods, mitigates concerns about human error and test failures during construction, enhancing overall quality assurance. Utilizing a blower door test, the AeroBarrier
Envelope Leakage Report from the Building Performance Hub – 2⁄3 of all draughts removed in under 60 minutes. © AeroBarrierUK
team analyses real-time data readings to track the distribution of the sealant in the space.
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The Building Performance Hub Training Suite – sealed during a live demonstration by AeroBarrierUK. © BCTA Group
Once the desired air-tightness level is achieved, the sealing process concludes, followed by a fi nal blower door test to verify the results. Post- sealing cleanup takes mere minutes, allowing other site work to resume shortly thereafter. Clients receive a Certifi cate of Completion detailing pre- and post-leakage results for the work undertaken. AeroBarrier’s sealant, a water-soluble organic
compound, is proven safe with ultra-low volatile organic compounds (VOC) and GreenGuard Gold certifi cation. Its inactive nature eliminates the need for chemical reactions to form a seal, ensuring no off -gassing or airborne release of harmful chemicals into building envelopes, maintaining the designed indoor air quality.
01432 513 499
www.aerobarrieruk.co.uk Wraptite® offers protection for innovative ecological house 17/04/2024 13:51
The Wraptite external air barrier system from A. Proctor Group has provided the significant benefits of airtightness, enhanced build quality and protection from the elements for a sea loch facing property on the isle of North Uist in the Outer Hebrides. 7-22 Systems Ltd, an ecological construction business has built a small house and artist’s studio utilising its unique, ecological, prefabricated offsite building system. The key requirements for the project at 27 Locheport, North Uist, included the speed of assembly, excellent insulation values, lots of natural light and the efficient use of space. Alex Durie, architect and co-founder of 7-22 Systems explained: “Using Wraptite, 7-22 Systems could pre-apply the breather membrane to each prefabricated component in their dedicated controlled workshop setting. The A. Proctor Group pre-cut the rolls to match the sizes of the external faces of each component, and then Wraptite tape was applied on-site to lap between the components. Wraptite has enabled 7-22 Systems to build to even greater quality, add another facet to their prefabrication, and provide the system with the breathable construction.” The Wraptite air barrier system is a safe and simplified membrane system. It provides a fully self-adhered vapour permeable air barrier certified by the BBA and combines the critical properties of vapour permeability and airtightness.
01250 872261
www.proctorgroup.com HBD04_A Proctor - External Envelope -
Membranes_DPR.indd 1 Sto creates fire compliant facades across multiple residential buildings 09/04/2024 10:18
An external wall insulation system manufactured by Sto has optimised fire protection for a multi-block residential development. The project’s first phase comprised two buildings which had the StoTherm Mineral K EWI system specified to meet the required fire rating while maximising thermal performance. BBA-certified, StoTherm Mineral K features A1 mineral fibre insulation boards and the system is classified with an A2-s1, d0 reaction to fire in accordance with BS EN 13501. Specialist surface finishers, One & Maike was responsible for installing StoTherm Mineral K on behalf of principal contractor Osprey, a facade remediation specialist. The insulation boards were fixed directly to the existing concrete substrate avoiding the need for a cavity. StoLevell Duo Plus, a strong mineral adhesive, was applied to the back of the insulation boards, and additional fixings were also used to secure the insulation boards to the substrate to suit wind load conditions. Sto-Glass Fibre Mesh was then embedded into the outer surface of the reinforcing coat providing crack resistance to the system. The system was finished with StoSilco K1.5, a silicone resin render ensuring high levels of water repellence and protection from harsh weather conditions. This was applied across an area totalling 2,500 m2
creating elevations featuring various colours, including white, terracotta and blue. 0330 024 2666
www.sto.co.uk
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WWW.HBDONLINE.CO.UK
17/04/2024 13:52
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