What are the disadvantages of MgO board?

The disadvantages of MgO board include that it is heavier than traditional building materials like gypsum drywall, it requires steel fasteners and may have a higher initial cost.

The disadvantages of MgO board include that it is heavier than traditional building materials like gypsum drywall, it requires steel fasteners and may have a higher initial cost when compared to conventional building materials like plywood and drywall.