PRESS RELEASE

FOR IMMEDIATE RELEASE

UNIVERSITY OF MARYLAND’S LEAFHOUSE USING WARMBOARD FINISHES STRONG AT SOLAR DECATHLON COMPETITION

(APTOS, CA) October 25, 2007 – University of Maryland’s LEAFHouse, using Warmboard Radiant Subfloor,
placed second at the Solar Decathlon competition in Washington, DC and finished an impressive first among the
17 competing U.S. teams. The results were announced on Friday, October 19th, on the final day of the
competition being held on the National Mall.
Maryland won the energy balance and communications contests and scored highly in the other events.
Warmboard was also used in the University of Texas at Austin’s BLOOMhouse which finished tenth overall in
the competition and took a first place in the hot water contest, second place in the engineering contest, and third
place in the comfort zone contest.

When talking to the Maryland team about why they selected Warmboard, Amy Gardner, Faculty Advisor, states
“Warmboard’s solution to radiant floor installation provided the LEAFHouse team and several other Solar
Decathlon teams with an easy to install, low-mass radiant floor panel. It was a great fit with the LEAFHouse’s
overall design goals, construction needs, and radiant floor system design.”

Terry Alsberg, Inventor and CEO of Warmboard Inc. said, “It was exciting to be at the competition and immersed
in the latest sustainable products and technologies being showcased. Warmboard is honored to be included in
Maryland’s LEAFHouse and be at the forefront of the rapidly growing green building movement. Warmboard is
looking forward to the 2009 Solar Decathlon and being involved again.”

Warmboard is proud of the company’s history at the Solar Decathlon competition. In 2005, Warmboard was
selected by the University of Colorado in Boulder to contribute to the heating system for their home. It was a
thrill when University of Colorado won the competition and took first place.

Over the past two weeks, the 2007 Solar Decathlon challenged 20 university-led teams from the U.S. and as far
away as Puerto Rico, Spain, Germany, and Canada to design, build and operate the most attractive and energyefficient
solar-powered home. Students competed in ten areas, ranging from architecture, livability and comfort
to how well the homes provided energy for space heating and cooling, hot water, lighting, and appliances.

Recognition as an efficient and highly responsive radiant system at past Solar Decathlons has allowed
Warmboard to continue gaining additional exposure in the green building community. In a world that is
progressively shifting to use alternate energy resources, Warmboard’s ability to be used in multiple applications
from standard water heaters to solar to geothermal systems, will continue to keep it on the cutting edge of green
technology.

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About Warmboard Radiant Subfloor:
Warmboard is a patented technology invented by Terry Alsberg in the early 90s, and has redefined radiant
flooring with its design simplicity. Warmboard is a “simply smarter” radiant heat product, with faster response,
even floor temperatures, higher output from lower water temperatures, and compatibility with numerous floor
coverings. The product is currently marketed to architects, contractors and homeowners. Warmboard is
available throughout North America, and has shipped its product into Canada, Europe, the United Kingdom,
Japan and Antarctica. For more information about Warmboard please visit www.warmboard.com.

About the 2007 Solar Decathlon:
Twenty teams were selected by the U.S. Department of Energy to compete in the 2007 Solar Decathlon. The
teams, from colleges and universities around the globe, participate in an unparalleled solar competition to
design, build, and operate the most attractive and energy-efficient solar-powered home. In fall 2007, the teams
transported their solar houses to the National Mall in Washington, D.C., where they formed a solar village. The
teams competed in 10 contests to determine an overall winner. Using only energy from the sun, the teams
generated enough electricity to run a modern household. With an eye on energy efficiency, the students
carefully choose the systems, products, and appliances used in their houses. To learn more, go to
www.solardecathlon.org/.