Page 43 - Green Builder September-October 2018 Issue

COURTESY OF ROXUL Solid comfort. Roxul COMFORTBOARD rigid

insulation comes in four thicknesses between
1.25 inches and 3 inches.

a rainscreen assembly, which provides a capillary break and a path
for liquid water to drain. In the demonstration home, DuPont
Tyvek CommercialWrap is installed against OSB sheathing. This How Energy Is Used
durable housewrap controls air ow and repels bulk water but
allows water vapor to escape; it is also UV resistant for up to
nine months. Three inches of Roxul COMFORTBOARD rigid in Homes (2009)
mineral wool insulation are installed between the housewrap
and cladding. This rigid insulation is also installed on the roof
and under the foundation, creating a continuous thermal barrier
that eliminates most thermal bridging.
Whitsett was excited
for the opportunity to use
Accoya from Delta Mill-
works as the exterior clad- Space Heating
ding. Accoya is sustain- 42% Lighting and Other
ably sourced radiata pine Appliances
that has been treated with 30%
acetylation. This non-toxic
chemical process reduces
the wood’s water-absorb- CREDIT: U.S. ENERGY INFORMATION ADMINISTRATION
CREDIT: FSTOP123ISTOCKPHOTO COURTESY OF KASITA A perfect pine. Delta Millworks' sustainably improving its dimensional Water Heating
ing capacity by 80 percent,
stability and making it
17%
much less vulnerable to
insects, mold and rot. In
sourced exterior cladding Accoya absorbs
80 percent less water than similar wood addition, Delta Millworks e e i n
treated the Texas Barnwood
products. cladding with a surface 5% Air Conditioning
charring process developed in Japan called shou sugi ban, which
further protects the material from water intrusion—and results in 6%
a striking aesthetic.
The high-performance Andersen windows feature SmartSun *2009 is the most recent year for which data are available.
[https://bit.ly/2CCLMNv] glass, which, with its high solar heat gain SOURCE: U.S. ENERGY INFORMATION ADMINISTRATION, RESIDENTIAL ENERGY CONSUMPTION SURVEY RECS 2009
coe•cient and high visual transmittance, is good at blocking heat Power point. The Rheem mini-split system and hybrid water
and UV light, but still lets in plenty of light—ideal for the climates heater significantly cut down on the energy required for space
in Kasita’s target markets. heating and water heating—the two largest categories of energy
“We designed for the most extreme conditions in all the locations use in most homes.

www.greenbuildermedia.com September/October 2018 GREEN BUILDER 41

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