The Kiln Apartments, Portland, Oregon, Improves Comfort

Situation

The Kiln Apartments are one bedroom passive house apartments located in North Portland, Oregon, an environmentally mindful community where walking and cycling are the norm. The five story, 19-unit building is an incredibly progressive concept, which uses only a fraction of the energy of most multiunit buildings. In fact, it’s one of the first of its kind in the United States.

Once tenants had moved into the apartments, the architects learned that the building warmed quicker than anticipated and retained heat throughout the year. This was great for the colder months but not for the warmer months. To remedy the situation, “a number of post-occupancy renovations were evaluated,” according to Lead Architect, Agustin Enriquez of GBD Architects Incorporated, “and installing exterior window film was the most cost-effective.”

Solution

To measure effectiveness, data loggers were placed in bedroom window sills with and without exterior film. “The data loggers gave us real world information about interior air temperature that confirmed what computer modeling indicated,” said Agustin Enriquez. “They showed temperature differences up to 12 degrees with the windows where Atmosphere was installed compared to windows without the film and were invaluable in getting to a viable solution.” Guided by the positive results, Vista™ by LLumar® Atmosphere™ window film was installed on all window exteriors at the Kiln.

Result

After the installation of TXA80 Atmosphere window film, residents in the building confirmed the exterior film made a significant impact on the indoor air temperature during the warmer months of the year. With such great success at the Kiln Apartments, architects should consider exterior window film for future renovation and retrofit projects where this type of challenge exists.

LLumar window tint is professionally installed by trained technicians and is backed by a lifetime limited manufacturer’s warranty.

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