Lafarge North America introduces the latest addition to its Weather Defense Platinum family: Weather Defense Platinum Interior, a high performance glass mat faced gypsum board designed for interior walls and ceilings applications requiring superior resistance to incidental moisture. Weather Defense Platinum Interior is manufactured with a specially formulated glass mat facer and an enhanced mold and moisture resistant core providing design professionals and contractors with a great option for applications requiring protection from standard construction exposure for up to twelve months. The board is ideal for areas such as basements, residential bathrooms and any interior side of exterior walls where moisture exposure could occur.