PCR Perini Cp

As part of Rudolph and Sletten, Inc.'s continued commitment to sustainability, the company announced today the installation of its new solar photovoltaic system at its Irvine, California office. The photovoltaic panels which cover the roof operate like a miniature power plant converting the sun's rays into electric energy. The 50-kilowatt system reduces Rudolph and Sletten's reliance on conventional electricity at the office by 25%. This installation of "green" technology will pay for itself in just over ten years.

"As a leader in sustainable construction, we find it imperative to practice our own philosophies," says Martin Sisemore, CEO and President of Rudolph and Sletten. "Our corporate offices are LEED Gold Certified, our fleet is comprised of hybrid vehicles and we are requiring our managers to become LEED accredited, 180 already have." Sisemore continues, "We are always looking for ways to reduce our carbon footprint, and installing solar photovoltaic panels is a logical and viable option."

Over the 30-year-life of the photovoltaic system, Rudolph and Sletten's Irvine office will reduce their carbon emissions by more than 1,594 tons, the equivalent of planting 37,067 trees, removing 271 cars from the road, or not taking 1,547 round trips flights between San Francisco and New York.

Rudolph and Sletten owns its Irvine office. Its other California offices are leased and thus not under consideration for the same installation projects.

About Rudolph and Sletten, Inc.

Rudolph and Sletten, Inc. (www.rsconstruction.com) is one of the leading general contracting firms on the West Coast. Rudolph and Sletten is a wholly owned subsidiary of Perini Corporation (NYSE: PCR), the country's ninth largest construction services company. As a pacesetter in the construction industry, Rudolph and Sletten has provided quality-oriented general contracting and construction management services for four decades. Rudolph and Sletten's expert professionals manage each job comprehensively, from site selection and preconstruction services through project completion. With its corporate headquarters in Redwood City, the company also has regional offices in Roseville, Irvine, and San Diego, California.

Rudolph and Sletten's building expertise includes virtually all types of projects with an emphasis on those markets where their technical expertise and quality excel: biotechnology and pharmaceutical research and manufacturing; electronics; nanotechnology; healthcare; and high-tech research. Other areas of expertise include corporate campuses and office buildings, hospitality, entertainment and gaming, educational institutions, and mixed-use retail facilities. Rudolph and Sletten's current clients include Hewlett-Packard, Genentech, Kaiser Permanente, Stanford University, the Monterey Bay Aquarium, Johnson & Johnson, Agilent Technologies, and the UC and CSU University systems.

About Perini Corporation

Perini Corporation (NYSE: PCR) is a leading construction services company offering diversified general contracting, construction management, and design-build services to private clients and public agencies throughout the world. Perini has provided construction services since 1894, and has established a strong reputation within their markets by executing large complex projects on time and within budget, while adhering to strict quality control measures.

Perini Corporation (www.perini.com) offers general contracting, preconstruction planning, and comprehensive project management services, including the planning and scheduling of the manpower, equipment, materials, and subcontractors required for a project. Perini also offers self-performed construction services including site work, concrete forming, and placement and steel erection. They are known for their hospitality and gaming industry projects, sports and entertainment, educational, transportation, healthcare, biotech, pharmaceutical, and high-tech facilities, as well as large and complex civil construction projects and construction management services to U.S. military and government agencies.

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Contact: Tray LaCaze Corporate Communication Manager 650.216.3756 Email Contact