This home is in Vancouver underwent a massive
renovation from inside out. e3eco group was brought in at the beginning to help
look at ways to improve energy efficiency and overall sustainable
renovation practices.
A plan was designed and then implemented with the contractor to ensure
all key areas were renovated according to plan.
The client also
wanted to make the living space as non-toxic as possible and chose
materials with low off-gassing qualities. The final result is a home
that can be truly enjoyed. It consumes approximately
40% less energy than
homes of similar size, had no “new-house smell” when
the client moved in and is
a real testament to form and function working in a cohesive manner. Some
of the considerations the client had and the solutions chosenwere as follows:
Natural landscaping,
drainage and non-pvc or aluminum
siding - natural shading design elements - no paving on
driveway - natural stone.
Baxi - On demand hot
water heat is
essentially the homes furnace along with high performance appliances
Energy
Efficiency:
Passive solar design with main living
spaces and glazing oriented due south.
All glass tuned to ensure higher performance with solar heat
gain and superior insulation. Walls were insulated using Icynene - allowing
us to reduce cost by filling existing lath and plaster walls
with R15 insulation
that provided an air tight envelope to reduce
air infiltration. Attic was insulated to
R45. Slab was re-poured - in doing so slab
was insulated with added radiant features to help promote energy
efficiency. R10 under the slab On-demand water
heater (shown) closed loop system for radiant heat and open loop forpotable water (both potable and radiant heat
are provided by the same unit) Roof overhangs - not implemented yet on
top floor will provide south side shade in summer and allow solar gain in
winter.
Deck was designed to shade lower floor windows from summer heat
gain. Wood windows with
zero VOC sealer with tuned double
glazing on west and north orientations. Fresh air
intake with intake fan installed to provide fresh air supply.
Existing exhaust fans remove stale air.
Client to install high efficiency fireplace insert.
Environmental Concerns:
A
No PVC Zero-VOC paint Low-VOC finish on the polished concrete slab floor Low-formaldehyde content cabinets (researched
German E-1 spec) Restored wood floors
Appliances are all low-energy consuming
All pot light fixtures - energy efficient/air tight.
Natural landscaping – wildflower meadow, clover & creeping
thyme, flagstone patio and walkway
Used materials that are high-quality and long lasting
. House was
pre-wired for future solar hot water. Attic insulation
used was formaldehyde free batt insulation.
Refinished Oak flooring
- air tight pot lights, zero VOC paints and finishes.
Roof overhangs on south
side - all natural
siding, natural drainage - river rock drainage bed
The final outcome - this was a great project. But at the end of
the day - it's the client that says the most.
We are very happy with the work e3eco group did
for us in making our house more efficient and environmentally friendly,
and recommend his services.G&M
Preconstruction stage -
Before construction started
The state of things to come.
Air tightness confirmed
Two key components - the first is the air tight electrical box being used and the second is the spray insulation foam being used to keep air exfiltration to a minimum.
Freshly poured slab
The slab was repoured - before the pour - it was insulated and hydronic radiant floor tubing layed.
Hydronic manifold
This manifold connects to the on-demand hot water system that heats both the slab and the potable (shower) water.
Icynene insulation
After clean up - this is the end result of the insulated wall - low VOC, air tight - no need for vapour barrier and energy efficient.
By using this tool we figured out how much sun and what issues the client would have with shading for every month of the year.
Sustainable |
environmentally friendly | energy efficient | building
design