Schöck retrofit solution for major office-to-residential conversion

The Kellogg Tower at Sudbury, in North West London, previously the London headquarters of the international contractor M.W Kellogg, is being transformed into a contemporary residential scheme known as Atrium Point. The existing buildings are being sustainably refurbished, with solar panels, air source pumps and heat recovery units, all contributing to meet CO2 reductions in the redevelopment.

It is currently one of the largest office-to-residential schemes in the capital and will realise a mix of a 290 studios, one and two bedroom apartments. Many of the units will benefit from a cantilevered steel balcony, supported to the existing reinforced concrete slab and structural thermal performance is a key consideration. Market-leading thermal break suppliers Schöck, are the go-to company for this type of specification, with the availability of their innovative Isokorb type RKS for refurbishment applications. The product is fully certified as an “Energy saving component” by the Passivhaus Institute in Darmstadt, Germany, which highlights the importance of thermal performance, even for refurbishment projects of this type.

The type RKS is a load-bearing thermal break with a 120mm insulation element thickness that allows the replacement, or addition, of balconies to an existing building, by connecting cantilevered steel balconies to the reinforced concrete slab. It minimises thermal bridges at concrete-to-steel connections on cantilever balconies and transfers negative moments and positive shear forces. This offers a number of different options for integrated, energy-efficient building renovation and guarantees enormous scope for design.

The RKS also provides LABC registration, the highest level of BBA Certification and easily meets the necessary Building Regulations.

For your free copy of the new Thermal Bridging Guide and / or the Schöck Specifiers Guide – contact the company on 01865 290 890 or visit