Study Finds Air Sealing Essential for Thermal Performance

WESTFORD, Mass. — A new study by the Building Science Corporation (BSC) analyzes the findings of the Thermal Metric Project, a multi-year collaborative research project. The project, also headed by the BSC, aimed at finding a new metric for the thermal performance of building enclosures that better accounts for known physical heat flow mechanisms and operating conditions.

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Portland Walmart to Feature Green Roof

PORTLAND, Ore. — Portland State University’s (PSU) Green Building Research Laboratory is partnering with Walmart to build a green roof on top of a local North Portland store. The university and Walmart will participate in a two-year research partnership to construct a 40,000-square-foot green roof and collect in-depth data to benefit future projects. The green roof project will be the largest in the city of Portland when Walmart’s new Hayden Island Meadows store opens Nov. 13.

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Design Software

Sefaira, a leader in software for high-performance building design, has introduced the first real-time energy analysis software for building design. Sefaira for SketchUp is a SketchUp plugin that provides real-time energy analysis without having to leave the design environment. The product delivers immediate and constant feedback directly in SketchUp while the architect is designing. The energy flows graph details the end uses of energy such as heating, cooling, lighting and appliances.

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Wood Panel

Windfall Lumber has released the Windfall Engineered Panel in a new lighter and more flexible .25-inch with all the same attributes as the .75-inch product. The panels are manufactured in the U.S. from reclaimed Douglas fir and Hemlock from deconstructed industrial, agricultural and residential buildings in the Pacific Northwest. The thinner panel size allows for easier wall and ceiling applications and also has the ability to wrap around fixtures or rounded surfaces. The Windfall Engineered Panel is offered in a variety of stains and finish options.

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Vibration Isolation Curb

The Vibro-Curb, a vibration isolation curb from from Thybar Corporation, features integral, vibration-dampening, spring isolators that can be easily accessed. The curbs, which provide mounting for rooftop HVAC, allow roofing to be completed at a later date without disturbing the unit. The flexible 9-inch counter flashing provides a weather seal while permitting easy access to the isolators. A minimum of 90 percent isolation efficiency is achieved when using the Vibro-Curb, according to the company.

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Green Hotels Gain No Revenue Boosts Study Says

ITHACA, N.Y. — A study from Cornell University’s Center for Hospitality Research has found that hotels that concentrate on sustainable practices have no difference in revenue when compared to those that do not.

The study, Hotel Sustainability: Financial Analysis Shines a Cautious Green Light, analyzed the database of the travel technology company Sabre Holdings. Authored by Howard Chong and Rohit Verma, the analysis demonstrates receiving sustainable building certification had a net neutral effect on sales and rates at hotels.

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