Magnesium Oxide building boards (MgO)

NHBC has recently updated its website regarding the use of MgO boards in essence they will not accept MgO building boards on buildings where the foundations are begun on or after 30 April 2020 under its insurance warranty.

Currently Premier guarantee have not made such conditions, their advice can be found here.

Our advice is that you should check with the Principle designer before suggesting or using MgO boards on projects.

The udpated guidance is available to members here.