Develop an owner occupied residential 3 flat that minimizes the environmental effect of the building.
Demonstrate that a rehab can generate an energy efficient building shell, reducing the energy and maintenance demands through site
and material selection and building design. Mitigate the ongoing environmental effects of the building's operation through reduced
energy and resource consumption, creative storm water management, and heat island effects. Generate an indoor and outdoor environment
that is conducive to the health of its occupants and the environment. Wire all of the units to be compatible with any future
technologies.
1) Passive Solar Features
a. A clerestory with thermally controlled windows with insulated masonry thermal mass to aid in reducing lighting, heating and
cooling requirements while increasing natural ventilation. (photos 12-2 and 13-1)
b. Lay lights and skylights to illuminate the building core, reducing the dependence on electric lighting.
(photo 12-2)
c. Insulated masonry thermal masses on the first and second floors to aid in ventilation, heating and cooling the units.
(photo 13-2)
2) Energy Efficient Building Features
a. Building shell insulated with high performance fiberglass batt installed between furring strips with a polypropylene vapor barrier,
then covered with Tuff R insulation. (photo 15-1) Clerestory and penthouse ceilings are the same but
with two overlapping layers of Tuff R. (photo 14-2) All joints, edges, and penetrations in each layer
are taped to ensure minimal air infiltration. (photo 17-1) (see Insulation Calculations for values)
b. All interior walls are thermally broken from the outside walls to reduce conductive losses and insulated with R-13 fiberglass batt
to control individual room conditioning and noise.
c. All interior floors are insulated with R-30 fiberglass batt to minimize conductive losses and noise.
d. The building's flat roof is vented and insulated with a layer of R-19 and overlapped with a layer of R-30 fiberglass batts,
plus an additional vapor barrier for an R-43+ roof. (photos 16-1 and 16-2) (see Insulation Calculations for values)
e. Clerestory roof and cathedral ceilings are vented and insulated with R-30 fiberglass batt and two overlapping layers of Tuff R
for an R 38+ roof. (see Insulation Calculations for values)
f. All electrical boxes, conduit, and furring strips on the exterior walls are thermally broken from contact with the exterior masonry.
g. All plumbing, hydronic piping and air condition ducts are insulated.
h. Two roof decks aid in shading the roof membrane, keeping the roof cooler in summer and warmer in winter.
(photos 19-2, 20-1 and 21-2)
3) Energy Efficient Building Systems
a. Energy efficient hydronic heating and high velocity air conditioning systems to be used in each unit. Individual unit control
allows for zoned room conditioning. The systems are controlled with 7 day programmable setback thermostats.
b. Fast recovery hot water heaters with gravity fed re-circulating loops for each unit.
c. Waste heat recovery system for heating common areas.
d. Marvin aluminum clad wood windows with low E, argon filled, heat mirror glass.
e. Use of compact fluorescent lighting and Energy Star appliances in all of the units and common areas.
f. Use of energy and water efficient fixtures which are also recyclable.
4) Energy and Resource Conservation Construction Features
a. Building materials were sourced within 500 miles.
b. 90% of the demolition materials were recycled on site.
c. Roof decks are skinned with a 95% post consumer recycled resin decking product that does not require additional maintenance except
power washing when needed. (photo 19-2)
d. Use post-consumer recycled, green seal products.
5) Storm and waste water reduction initiatives
a. Interior cistern for storm water storage for watering roof garden.
b. Micro drip irrigation system for gardens.
c. Roof gardens aid in the absorption and slow release of precipitation, while providing cooling to the building and habitat for
wildlife. (photo 20-1) (see Plant List - Garage Roof Garden)
d. Down spouts supply rain water to rain gardens on the north side of the building and aid in the irrigation of the native and
naturalized plantings in the front and parkway gardens. (photo 24-1)
e. Permeable pavers replace the concrete sidewalk on the south side of the building where native vines are planted on the fence.
g. All baths and kitchens are outfitted with water saving or low flow fixtures. |
