Case Study

Private Build (Semi Detached House)

New Build Semi Detached MMC / OSM, Epsom, Surrey. “A plasterboard free house!”Our Multi-ProXS & Multi-Pro building boards have been used on a residential new build project in the lovely and historic market town of Epsom. Located just southwest of London on the edge of the North Down hills, Epsom offers an easy commute by train to Waterloo. The innovative structure is a hybrid of light gauge steel track and frame combined with Structurally Insulated Panels (SIPs).Thanks to the selection of Resistant MgO building boards this is a house with zero plasterboard used anywhere. The end result is a pair of thoroughly modern homes which feature high quality build and excellent thermal performance whilst seamlessly blending in with neighbouring properties.

“I am a time served bricklayer and have been building houses for almost 50 years. I am passionate about building much needed, truly eco homes with a fabric first approach and I believe this is the best building board I have ever seen.” - Peter Fishenden, MD, Satius Ltd.

Key Facts

Project Sector:: Private Residential
Project Value:: £1,500,000
Size of Project:: Pair of 3 bed semi-detached
Developer:: Satius Ltd
Designer:: Peter Fishenden
Commencement Date:: Spring 2023
Completion Date:: Spring 2024
Resistant Product:: Multi-proXSMulti-pro

Peter Fishenden designs and builds houses that combine the best of UK offsite manufacturing with highest standard of workmanship onsite and quality control from initial design, to project completion. The hybrid of light gauge steel and SIP structure are designed by Peter himself, sent straight to the offsite factory and arrive back onsite, exactly when required, with lorries all clearly numbered for easy location. The main structure is then quickly erected with no unnecessary disruption to the neighbours.

The PU foam in the SIP is waterproof, the Resistant Multi-ProXS skin remains dimensionally stable and retains its strength after wetting/drying cycles, and the light gauge steel is galvanised to ensure typical UK weather does not impact on the building or prevent it from delivering on the impressive design U-values. Peter holds UK & European design right for the way the SIP is manufactured to allow the light gauge steel a thermal overcoat to negate thermal bridging. The external finish is a combination of composite cladding, brick slips and Fassa render applied directly to Multi-ProXS.

Multi-ProXS was selected to skin both sides of the SIP panel. XS simply stands for Xtra Strength and is proven to deliver a bending strength up to 100% greater than other MgO building boards.

On this project, Fassa silicone render was applied, but other renders have been used previously with similarly great results. Internally, our standard Multi-Pro board was used to line the light gauge steel frame. After priming with an acrylic-based dispersion primer, the boards were taped and jointed to achieve an exceptional internal finish.

Resistant MgO building boards offer a canvas which aids passive fire protection to the structure of the building. The boards are exceptionally easy to cut by either score & snap method, hand, or machine saw. contrary to many other boards, they don’t contain crystalline silica, which is an extremely harmful substance released in RCS dust.

Externally, the finishing coats of render and brick slip were applied directly to the Multi-ProXS board and internally the Multi-Pro board was quickly screw fixed to the light gauge steel frame.

The dimensional tolerance and QA checks performed both by Resistant's in-house production team and 3rd party BBA Inspectors ensure a consistently accurate product which is easy to finish and whose high impact resistance contributes to a more luxurious feel when compared to plasterboard linings.

This site was created by purchase of land from 2 adjacent gardens to provide much needed additional housing of a type ideal for young families in the desirable commuter town of Epsom. Working with neighbours in close proximity, the innovative combination of OSM and light weight framing required no crane days and minimal noise disruption during the build process.

The creation of 2 new thermally efficient homes fit for the 21st century on a small gap site in a desirable location is a clear benefit to the community.