CertainTeed Insulation To Expand Canadian Presence with Purchase of Ottawa Fibre

Saint-Gobain, through its subsidiary, CertainTeed Insulation Canada, Inc., today announced the signing of an agreement to purchase Canadian fibre glass insulation manufacturer Ottawa Fibre. Under the agreement, CertainTeed Insulation will acquire all of the operating assets of Ottawa Fibre for approximately CAN$41 million, plus assume the Fund’s adjusted debt.

The sale is expected to be finalized in early January 2009 following unit-holder and regulatory approvals.

The acquisition includes fibre glass insulation manufacturing facilities in Ottawa and Tillsonburg, Ontario and Redcliff, Alberta, as well as a ceiling tile plant in Ottawa, giving the company a consistent, domestically-produced source of CertainTeed insulation products for Canadian customers.

CertainTeed Gypsum already has a well-established presence in Canada, where it is the leader for wallboard and finishing products.

Headquartered in Valley Forge, Pa., CertainTeed and its affiliates have more than 7,000 employees and more than 70 manufacturing facilities throughout the United States and Canada. Visit <www.certainteed.com> for more information .

Ottawa Fibre is a manufacturer and distributor of a broad range of fibre glass insulation products, including fibre glass ceiling tiles, designed for thermal and acoustical applications and destined for the Canadian, U.S., and international residential and non-residential/industrial markets. Additional information is available at www.sedar.com or the company’s website at www.ofigroup.com.