Suppliers of: thermal breaks thermal bridging balcony rebars reinforcement, connectors load bearing connectors structural reinforcement balcony connectors thermal breaks
Schöck are specialists in the supply of innovative and effective solutions for applications such as structural thermal insulation, thermal bridging breaks and noise suppression in new buildings.
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Schöck are the UK suppliers of:
Schöck Isokorb® is the heat-insulating load-bearing thermal break for cantilever balconies. The Isokorb® prevents thermal bridging and is used for connecting reinforced concrete to reinforced concrete, reinforced concrete to steel and steel to steel balcony decks. Isokerb can be used on both new build and for upgrading of existing balconies and even offers an effective alternative to wrapped parapets.
Staircase noise is detrimental to the quality of living conditions and can reduce the value of a building. For high construction quality it is recommended to include top-quality impact sound insulation in sustainability planning. Schöck Tronsole® is an efficient solution. The perfectly matching system of impact soundproofing elements combines dependable sound insulation with simple installation. The Schöck Tronsole® variants are perfectly matched to each other and ensure efficient impact sound insulation that encompasses all structural element subsections on both straight and winding staircases.
The Schöck Thermoanker® is the energy-efficient alternative to conventional stainless steel lattice girders when connecting the concrete skins of core-insulated sandwich and element walls. Compact and easy to install, it also improves cost efficiency when prefabricating concrete parts. The Schöck Thermoanker® can be used in conjunction with any type of insulating material, thus offering prefabricating plants and architects a construction material for thermal breaks in façades that is fit for the future.
The point between the basement slab and outer walls is a danger area where thermal bridges and damp can easily form. Novomur® is an insulated block that prevents thermal bridging and damp penetrating buildings at ground level. It serves as the first course at the point where the basement ceiling forms the ground floor outer and inner walls. Novomur® thermal block is built into the first course of brick or blockwork and is available in all regular wall thicknesses: 100 mm, 115 mm, 150 mm, 175 mm, 200 mm and 240 mm and comes in 750 mm standard lengths.
Whether you are installing concrete slabs in high-rise buildings or supporting walls in underground garages: Distributing the shear forces in dilation joints usually requires additional time and effort. Schöck Dorn® are quite the opposite. The shear reinforcement and heavy-duty dowels for transferring shear forces in expansion joints are ready for installation and dispense with the need for complex detailed solutions. This shear reinforcement is affordable, reliable and intelligent.
The Schöck Bole® is an anti-punching shear system that offers specifiers the advantages of a free floor area. Non-load bearing partition walls are possible, lower noise and reinforcement expenditure, Bole allows room to work freely right up to the ceiling and full use of storey height.
For decades, steel has been the material of choice for reinforcement in concrete construction. But in particularly corrosive surroundings or construction that must be executed without steel, conventional steel rebar does not satisfy the relevant requirements. This is where Schöck Combar® glass fibre reinforcement offers all sorts of options.
Schöck customer support offers a totally comprehensive information service which includes: software, planning, in-house training, seminars and comprehensive technical specification details.
Further technical information is available to download from the BPi download Libraries or from the manufacturer’s own website.
A new brand identity and logo for Schöck
Schöck will have a new look from January 2021. Innovation has always been a key part of the company’s philosophy and the new branding is intended to represent a more authoritative and contemporary look going into the new decade. The ‘Schöck seal’, combined with the use of upper-case type, symbolises even more strongly the promise of delivering reliable, consistent quality; at the same time maintaining strong relationships between the company, its customers and its employees. The strapline will continue to be: ‘Dependable by design’.
Schöck’s primary focus is on the development of structural components that make a substantial contribution to building physics. For example minimising thermal bridges, preventing impact noise in buildings and reinforcement technology solutions. Mike Bucher, CEO of Schöck AG comments: “Schöck has developed very successfully over the last 30 years. Our company is now more innovative and international than ever – and we want to present this to the outside world.”
The most striking feature of the new design is the logo. The blue used in the logo is darker and becomes the leading brand colour and the Schöck name is now presented in upper-case type. The new trademark – ‘the Schöck seal’ – is represented by two interlocking brackets. “The new Schöck seal stands for a clear promise. It is a symbol of quality and value, of reliability and security” explains Mike Bucher. “These are values that are at the core of our actions, even in times of digital transformation.”
An important challenge in the revision of the design was to meet the requirements of both the digital and the analogue world. The new logo can be used flexibly and is easily recognisable on all devices, from a small smartwatch, to large scale, such as on one of the six factory roofs.
Avoiding thermal bridging is critical with balcony design detailing
A thermal bridge is a localised area of the building envelope with significantly higher thermal conductivity than surrounding areas. Cantilevered balconies are the most critical thermal bridges and their presence results in a higher heat transfer out through the building and colder surface temperatures on the inside. The main consequences are higher energy consumption, non-compliance with Building Regulations and condensation. The latter leading not only to structural integrity problems, but the potentially serious occurrence of mould growth as well.
To meet Building Control requirements in England and Wales, it is necessary to demonstrate compliance with Building Regulations. The latest version of the Building Regulations Part L (2013, with 2016 amendments) and associated guidance document for residential construction Approved Document L1A (ADL1A) require that thermal bridging be included in the fabric heat loss calculations. However, despite the increasingly stringent standards for thermal performance and heat losses, many designers are still not fully aware of how significantly thermal bridges can compromise the value of the installed insulation.
Thermal performance and structural integrity
The most effective way to minimise thermal bridging at cantilever balcony detailing is to incorporate a load-bearing structural thermal break such as the Isokorb from Schöck. This minimises the flow of thermal energy between the interior and exterior of a building, providing both structural integrity and ensuring that the balcony is thermally isolated. To work effectively over a long period thermal breaks require certain physical characteristics. Thermal insulation with an optimum thickness for the particular application, load-bearing components and a combination of reinforced steel and stainless steel. A wide variety of thermal break solutions are available from Schöck for applications as diverse as: concrete-to-concrete; concrete-to-steel; steel-to-steel; renovation projects – and even Passive House.
One consequence of thermal bridging is that surfaces can form condensation, causing visual deterioration and structural damage. However, an even bigger concern is mould growth. To identify areas where there is a risk of condensation and therefore mould growth, a ‘surface temperature factor’ (fRsi) should be used. It allows surveys under any thermal conditions and compares the temperature drop across the building fabric with the total temperature drop between the inside and outside air. Using the formula, the recommended value for offices and retail premises is equal to or greater than 0.5; and to ensure higher standards for occupants in residential buildings, equal to or greater than 0.75.
Passive House no longer a problem
Passive House uses highly energy-efficient building materials and preventing thermal bridging is essential. Until relatively recently, balconies posed a construction challenge for Passive House design. Components penetrating the insulating outer shell of a thermally highly sensitive building demanded performance standards not achievable by thermal break products on the market at the time. However, innovative product development means that high specification ‘Passive House certified’ structural thermal breaks from Schöck are now available for many applications.