Purpose and use
Magnesia is widely used primarily as wallboard alternative to conventional gypsum-based drywall. The magnesia boards can be scored and snapped, sawed, drilled, and fastened to wood or steel framing.
It can be used for interior or exterior applications
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Magnesia boards are a good example of the advances made in construction materials to meet changes in building codes for safety, durability, mold and bacterial resistance, and humidity control.