RCM provides a range of alternatives to Magnesium Oxide (MgO) building boards

23 April 2020

As you will no doubt be aware, at the end of March 2020 NHBC decreed that it would no longer accept the use of Magnesium Oxide (“MgO”) Building Boards on buildings under its insurance warranty. This ruling comes into effect on 30th April 2020.

NHBC recommend that an alternative suitable building boards, compliant with Technical Requirements R1 and R3, should be specified.

RCM supply the most extensive range of building boards to many sectors of the UK building industry. Our products are available with European classification Class A1 or A2 and the majority carry BBA Certification. 

Choose from our range of Class A1 Fire Rated Sheathing Boards :




Our A Class Fire Rated Cellulose Fibre Cement Render Carrier Board :


Please contact us for more information on these products.

The full NHBC statement regarding the use of MgO boards on site can be read using the link here.