Off Site Manufacturing

Off Site Manufacturing capacity holds the key to solving the skills shortage and ongoing housing shortfall currently facing the UK. Resistant provides 4 product solutions for wall sheathing and structural flooring which massively outperforms OSB3, plywood, chipboard & gypsum based construction materials.

High performance Resistant building boards are ideal for the precise and exacting demands of high quality Offsite Manufacturing (OSM). Resistant provide structural wall sheathing and flooring products which satisfy the combined demands of passive fire protection, racking strength, load bearing capacity and weather exposure during the build period. Resistant Building Products Ltd are active members of the Structural Timber Association and are proud to have been awarded the STA Assure Gold accreditation for their Multi-proXS building board. This scheme offers reassurance to the construction community that STA Members meet or even exceed current legislation and regulatory requirements.


Multi-proXS is used extensively in timber / steel frame and volumetric / modular manufacturing for applications which go beyond the properties of other building materials. Benefitting from additional layers of reinforcing mesh our board has exceptional bending strength and exceeds the values of Category 1 racking. Capable of being gun nailed close to the edge / corners on to small section studs with no fear of fixing break out or screw fixed. The Multi-proXS board is also lightweight and exceptionally easy to cut when compared with fibre cement type building boards. During manufacture, transport to site and the construction process, the tough nature of Multi-proXS, minimises any risk of damage.

Multi-proXS passed the Small Room Fire Test at BRE and is named throughout Product Paper 4 of HSE endorsed STA Design Guide to Separating Distances During Construction. Simply by replacing 9mm OSB3 with a layer of 9mm Multi-proXS as the sheathing board provides a 5 point wall assembly to help achieve an overall Category C timber frame solution and thus allow construction of timber frame projects adjacent to existing occupied buildings. In addition Multi-proXS offers an extensive range of 60 / 90 & 120min UKAS tested fire resistance partition solutions encompassing single layers of the board either side of the studwork.


20-20 Fibre Cement T&G Floor Board compliments 9mm Multi-proXS perfectly. A high strength, weather durable structural floor which due to its A1 Non-combustible rating can be used in the STA Design Guide to Separating Distances During Construction, together with ordinary timber joists to provide a 2 point wall assembly and complete a very simple Category C timber frame solution. Our design and fitting brochure is simple to use for Architects, Engineers and Contractors and the finished feel underfoot adds to the overall build quality – what’s not to like? So don’t delay and download your copy today!


20-20 Fibre Cement Board is available in 9 & 12mm thickness, A1 Non-combustible and has been tested in to out and out to in on light gauge steel frame stud work to achieve 60mins.


Resistant Multi-rend board is a high strength, durable and fast fit external carrier board intended to accept a range of weather resistant finishes including direct render, brick slip, real stone and many more. Easily fitted in either the factory or onsite the lightweight nature of the system perfectly compliments OSM structures and removes slow trades such as bricklaying from the critical path of the construction programme.

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