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Date 10/24/2011

Lafarge Introduces Weather Defense® Platinum Interior Wallboard

Reston, VA

Lafarge North America Inc.


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.


 Lafarge's 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.


 According to independent tests, Weather Defense Platinum Interior is highly resistant to the growth of mold and mildew and scored 10 out of a possible 10 using the ASTM D 3273 testing protocol. In addition, the unique glass mat facer offers a very smooth surface which makes it easier to handle than other fiberglass-faced boards. It is also as easy to cut, score, snap and fasten as traditional gypsum boards.


"Adding our new interior product to the Weather Defense Platinum family is significant for our customers and their innovative offerings. Weather Defense Platinum Interior matches the highest resistance to mold and mildew in the industry. Weather Defense Platinum Interior represents high performing board that meets today's construction expectations" said Terrance O'Brien, Manager of Product Development and Innovation for Lafarge North America's Gypsum Division.


Weather Defense Platinum Interior is manufactured using 100% synthetic gypsum, allowing the product to contribute to the attainment of LEED® credits for both the Recycled Materials credit (MR 4.1 & 4.2) and the Regional Materials credit (MR 5.1 & 5.2).


 According to Stephen DeMay, Vice President of Sales for Lafarge North America's Gypsum Division, "The ability to offer an entire line of Weather Defense Platinum products which all include warranted performance against interior exposure to the elements, mold and mildew resistance and LEED credit contribution, provides a competitive edge for our dealers and applicators to service their most demanding projects".



Brad Wing
Technical Manager
Lafarge North America, Gypsum Division

Serene Jweied

Communications Director

Lafarge North America




Lafarge S.A., together with its subsidiaries (the "Lafarge Group" or the "Group"), is the world leader in building materials, with top-ranking positions in all of its businesses: Cement, Aggregates & Concrete and Gypsum. With 76,000 employees in 78 countries, the Group posted sales of 16.2 billion Euros in 2010.  Lafarge North America Inc. and its subsidiaries, including Lafarge Canada Inc., ("Lafarge"), are Lafarge Group companies, and together constitute the largest diversified supplier of construction materials in the United States and Canada. 


The Lafarge Group entered the global "Dow Jones Sustainability Index" in 2010 in recognition of its sustainable development actions. The Group places innovation at the heart of its priorities, working for sustainable construction and architectural creativity.           

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