Superior Walls® Xi Plus Foundation Chosen for THIS OLD HOUSE® 2018 Idea House in Narragansett, Rhode Island

 In Press Releases

NEW HOLLAND, PA – A precast concrete Superior Walls® Xi PlusTM foundation has been installed as the starting step for the THIS OLD HOUSE 2018 IDEA HOUSE in Narragansett, Rhode Island. The energy-efficient wall panel system was installed in one day at the beginning of the construction process for the home in March.

            “It’s an honor for our company’s products to once again be involved in a project connected with the team at THIS OLD HOUSE,” says Jim Costello, president of Superior Walls. “In construction, the foundation selection is critical. The selection of the Xi Plus concrete foundation will help make the basement of this home a more comfortable area for extended living and storage space.”

As opposed to concrete blocks or poured concrete, precast Xi Plus concrete panels from Superior Walls are created in the manufacturing process with DOW® THERMAX insulation covering rigid foam insulation. The panels are available with a built-in insulation value of R-21.3 and can be insulated up to R-42+.

The wall panels used in the project provide R-values that meet or exceed energy conservation values from both the IECC and the IRC, and the Xi Plus wall panels can help in the construction of an ENERGY STAR® qualified home. The Superior Walls Xi Plus wall panels in the Idea House have achieved the NGBS Green Certified Product designation provided by Home Innovation Research Labs.

The panels were custom manufactured off site in indoor production facilities at Superior Walls by Weaver Precast. This eliminated any on-site soil contamination, such as the form oil used for poured concrete walls.

“Most impressively, the Xi Plus foundation for the Idea House was installed in just one day,” says Costello. “This allowed the building crew to start framing in the project the very next day.”

The Craftsman-style THIS OLD HOUSE 2018 IDEA HOUSE is being constructed by Sweenor Builders, Inc. and will be featured in the October and November/December issues of This Old House magazine and in segments of the 2018-2019 season of the Emmy Award-winning TV series This Old House. On, a webcam delivers live coverage of the construction of the home.

The 2,700-square-foot cottage was designed by Union Studio Community Architecture & Design out of Providence, Rhode Island. Located less than a mile from the town beach, future owners of the house will benefit from the durability and energy efficiency of the precast foundation on the home.



About This Old House Ventures, LLC

This Old House Ventures, LLC, is America’s No. 1 multiplatform home-enthusiast brand, providing trusted information and expert advice through its award-winning television shows, This Old House and Ask This Old House, its highly regarded This Old House magazine, and its inspiration- and information-driven digital properties, including This Old House and Ask This Old House are produced by This Old House Ventures, LLC, and are presented on PBS by WGBH Boston. National underwriting for This Old House TV is currently provided by GMC, The Home Depot, State Farm Insurance Company, Marvin Windows, Gorilla Glue, HomeAdvisor, and Titan. Established as This Old House Ventures, LLC, the company is headquartered in Stamford, CT, with offices in New York, Detroit, Chicago, Los Angeles, San Francisco, Atlanta, and Concord, MA.


About Sweenor Builders

Based in coastal Rhode Island, Sweenor Builders Incorporated is an award-winning builder of luxury custom homes. The firm’s portfolio features a full range of in-house design/build and interior design services, as well as collaborations with New England’s leading architects.  Founded in 1989, the company has become one of Southern Rhode Island’s most sought-after builders thanks to the guiding principles of its President and CEO Jeff Sweenor. He surrounds himself with craftsman who share his passion for delivering rewarding client experiences, and quality homes that last for generations. For more information, visit:


About Union Studio Architecture & Community Design

Union Studio was founded in 2001 with the goal of making an impactful civic contribution to communities of all types through exemplary architecture and urban design. The firm served as the architects on the Concord Riverwalk project and received an Honorable Mention from the New England Chapter of the American Institute of Architects (AIA) for their work on the project. The Union team embraces a traditional, pedestrian-friendly approach to design featuring vibrant, beautiful spaces that help to enrich our communal and civic life.



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