Lakeridge Trail
Net Zero Home with Fuentes Design
Completion
Completion date 07/29/2015
Occupancy
This owner-occupied home has two full-time residents. One resident spends 140 hr/wk in the home and the other, 90 hr/wk.
Days per year Building is fully occupied: 340
Scope
IRC 2012 with Boulder County Amendments, Type VB, not sprinklered. This residential project involved scraping an existing home to the slab-on-grade foundation except for the chimney. Other than minor foundation repairs, the primary element added was a 624 sq ft garage.
Type of Construction
Retrofit
Number of buildings
1
Bedrooms
4
Bathrooms
4.0
Stories
2
Conditioned Building Volume
48,586 cu ft
Conditioned Floor Area
3,820 sq ft
Location and Climate Details
single-family residence
Address
2861 N Lakeridge Trail
Boulder, CO 80302
United States
Location Type
Suburaban
Climate Region
Zone 5
Köppen Climate Type
Dfb
Lat. / Long.
POINT (-105.2912806 40.1382487)
Elevation
5,802 ft
Solar Insolation
5.52 kWh/m2/day
Annual CDD and Base Temp
1020 | 65 deg F
Annual HDD and Base Temp
5427 | 65 deg F
Site
Site conditions: previously developed land, lake/pond,, preexisting structure(s)
Site description: This home is in a rural residential area with 80 homes around 40-acre Allen Lake. The house is located on a hillside 140 ft above and to the west of the lake.
Materials and Design Strategy
Special architectural measures: The house was built with Passivhaus design practices, including an ERV and tight envelope (CFM50 = 399, ACH50 = 0.49). Wall are 2"x6" with 4" of polyiso "nail base" insulation.
Completion
Occupancy
This owner-occupied home has two full-time residents. One resident spends 140 hr/wk in the home and the other, 90 hr/wk.
Scope
IRC 2012 with Boulder County Amendments, Type VB, not sprinklered. This residential project involved scraping an existing home to the slab-on-grade foundation except for the chimney. Other than minor foundation repairs, the primary element added was a 624 sq ft garage.
| Type of Construction | Retrofit |
|---|---|
| Number of buildings | 1 |
| Bedrooms | 4 |
| Bathrooms | 4.0 |
| Stories | 2 |
| Conditioned Building Volume | 48,586 cu ft |
| Conditioned Floor Area | 3,820 sq ft |
Location and Climate Details
single-family residence
| Address |
2861 N Lakeridge Trail Boulder, CO 80302
United States |
|---|---|
| Location Type | Suburaban |
| Climate Region | Zone 5 |
| Köppen Climate Type | Dfb |
| Lat. / Long. | POINT (-105.2912806 40.1382487) |
| Elevation | 5,802 ft |
| Solar Insolation | 5.52 kWh/m2/day |
| Annual CDD and Base Temp | 1020 | 65 deg F |
| Annual HDD and Base Temp | 5427 | 65 deg F |
Site
This home is in a rural residential area with 80 homes around 40-acre Allen Lake. The house is located on a hillside 140 ft above and to the west of the lake.
Materials and Design Strategy
The house was built with Passivhaus design practices, including an ERV and tight envelope (CFM50 = 399, ACH50 = 0.49). Wall are 2"x6" with 4" of polyiso "nail base" insulation.