Los Altos Modern Passive House

PROJECT

Project Name: Los Altos Modern Passive House
Completion Date:
2018
Building Type:
Custom Home
Project Description:

A modern home under construction in Los Altos built to Passive House standards has triple pane windows, bib insulation in the walls, rockwool insulation outside of the walls, and open-cell spray foam in the ceilings surmounted by rigid insulation within the roof assembly. The R-Guard by Prosoco air barrier is shown in the photo along with Roxul insulation. The large underfloor is conditioned and has enough room to house two Zehnder HRVs. This home, which is connected to the grid, is self-powered with electricity from solar panels on the flat roof and two Tesla Powerwall backup batteries. Natural gas provides fuel for hot water and decorative fireplace. Home heating is provided by a hydronic heating system and cooling is provided by an automated Lutron shading system and conventional air conditioning.

Location:
No. of units:
1
Construction Type:
wood frame over crawl space
Construction Cost:


TEAM

Owner:
Architect/Designer:
Salt Studios Design
Engineer/s:
PH Consultant:
Beyond Efficiency
Contractor:
Bill Fry Construction
Other:
Miscelaneous:


PREDICTED PERFORMANCE

METRIC VALUES

Treated Floor Area:
0 m2
Typical Calc. Area:
Exterior Walls:
0.000 W/m2K
Floor/Slab:
0.000 W/m2K
Roof:
0.000 W/m2K
Overall Window:
Window Frame:
0.000 W/m2K
Window SHGC:
0.00 %
Entry Door:
0 W/m2K
Ventilation:
0.00 %
Heating Source:
Cooling Source:
Hot Water Source:
Airtightness:
0.00 ACH50
Green materials:
Annual Heat Demand:
0.00 kWh/m2yr
Heating Load:
0.00 W/m2
Primary Energy Value:
0.00 kWh/m2yr


CERTIFICATION

Certification:
Issued by: