Gypsum industry news

US: November 2011 saw more home starts in the US than any month since April 2010. The surge was reportedly led by an increase in multifamily units. The gypsum industry will be watching to see if the trend continues for December 2011, which might finally signify an upturn in demand for wallboard.

Starts increased by 9.3% to a 685,000 annual rate. Building permits, a sign for future construction, also climbed to a year-high. As well as multifamily homes, typified by apartments, demand for single-family-homes may also be increasing. A drop in house prices and low borrowing costs is thought to be the reason for the increase in demand.

"For months we've been flagging the strength in multifamily construction, but now we're starting to get signs that single-family is pulling itself off the canvas," said Brian Jones from Société Générale in New York.

North America: CertainTeed Gypsum, a Saint-Gobain subsidiary, has announced that UL Environment Inc. has completed its independent Environmental Claims Verification (ECV) process for products manufactured at five of its sites in North America. The company says that the move demonstrates a strong commitment to environmental responsibility and transparency.

UL Environment's ECV process has been completed for products manufactured at CertainTeed's Cody (Wyoming, US), Vancouver (British Columbia, Canada), Toronto (Ontario, Canada), Seattle (Washington, US), and Moundsville (West Virginia, US) manufacturing facilities. Specifically, UL Environment confirmed the pre- and post-consumer recycled content, origination of source materials (and adherence to ASTM D 3273 mould-resistance standards, if applicable) for 19 CertainTeed products. The validation process is currently underway for products manufactured at the company's remaining North American plants.

"CertainTeed has taken a unique approach by seeking validation for environmental product claims based on the specific plant in which they are manufactured," said Steve Wenc, president of UL Environment. "This demonstrates CertainTeed's commitment to providing detailed product information and an unprecedented level of transparency."

"Third party verification of environmental claims is a critical component of today's green building culture, as it provides independent evaluation and enhanced transparency," said John Donaldson, president of CertainTeed Gypsum. "CertainTeed has made significant strides in ensuring that building and design professionals have access to sustainable, high-performance gypsum products that help them to achieve their goals in the responsible development of our built environment."

Asia: Australian building material's group Boral has announced that it has completed its acquisition of Lafarge's interests in the two companies' former joint-venture Lafarge Boral Gypsum Asia. The business has been renamed Boral Gypsum Asia (BGA) and transition plans are in place for product branding in each country. BGA has performed to expectations since the acquisition was announced in August 2011.

The chief executive of Boral, Mark Selway, said, "We are delighted to be able to fully integrate BGA into our group. The continued growth of BGA is a strategic priority and we look forward to working with the management team and employees to develop and execute our plans for the future."

US: NASA's Mars Rover Opportunity has found bright veins of a mineral, which appears to be gypsum, deposited on Mars. Analysis of the vein will help improve understanding of the history of wet environments on the planet.

"This tells a slam-dunk story that water flowed through underground fractures in the rock," said Steve Squyres of Cornell University, principal investigator for Opportunity. "This stuff is a fairly pure chemical deposit that formed in place right where we see it. That can't be said for other gypsum seen on Mars or for other water-related minerals Opportunity has found. It's not uncommon on Earth, but on Mars, it's the kind of thing that makes geologists jump out of their chairs."

The latest findings by Opportunity were presented on 7 December 2011 at the American Geophysical Union's conference in San Francisco.

The vein examined most closely by Opportunity is about 1cm – 2cm wide, 40cm to 50cm long, and it protrudes slightly higher than the bedrock on either side of it. Observations by the rover reveal this vein and others like it within an apron surrounding a segment of the rim of Endeavour Crater.

In November 2011 researchers used the Microscopic Imager and Alpha Particle X-ray Spectrometer on the rover's arm and multiple filters of the Panoramic Camera on the rover's mast to examine the vein, which is informally named "Homestake." The spectrometer identified plentiful calcium and sulphur, in a ratio pointing to relatively pure calcium sulphate. The multi-filter data from the camera suggest gypsum, a hydrated calcium sulphate.

Observations from orbit have detected gypsum on Mars previously. A dune field of windblown gypsum on far northern Mars resembles the glistening gypsum dunes in White Sands National Monument in New Mexico, US. However the Homestake vein is the first time the mineral has been spotted where it formed.

Canada: Georgia-Pacific has idled its Cape Breton gypsum mine in Nova Scotia due to the weak US dollar and low demand for wallboard in the US. The company is laying off 34 workers at the site whilst retaining eight others as a skeleton staff.

Georgia-Pacific told its workers on 2 December 2011 that it will indefinitely idle operations at its Sugar Camp quarry. "This is not a closure or a shutdown; it's an indefinite idle," said company spokesman Eric Abercrombie. "This is purely a business decision to idle the facility based on the North American market conditions and the weaker US dollar."

Georgia-Pacific had 73 employees in Cape Breton until the autumn of 2011. The Sugar Camp operation has been open since 1962. In December 2011 USG permanently closed the Fundy Gypsum mine in Hantsport, Nova Scotia.