Modern Portland Residence

Project Subtitle: 

Portland, OR

Project Description: 

The Modern Portland Residence design is a balance of sustainability, the client's needs, budget, and context. In order to save on precious floor area, energy use, and money, an efficient floor plan was developed exploring bold moves like eliminating the dining room and creating a built in bench with a dining table placed in the living area. Cellar Ridge created Portland's first 50/10 residential project. The goal of Cellar Ridge and the homeowners was to balance a budget with sustainability. The answer was to build the home with 50 percent more energy efficient than code at just 10 percent greater cost. The resulting home is certified Net Zero and Earth Advantage Platinum. The modern home includes an extensive air sealing package, a recycled metal roof prepped for a future solar array, a heat recover ventilator and VOC-free interior finishes for cleaner indoor air quality. The project resulted in an 1800-square-foot passive solar house with an open-concept living area that overlooks the backyard. "Being first-time homewoners, there's always the 'woulda, coulda shouldas,'" said the homeowner ((ROYAPET)), "but we're very happy with the house that we have."

For more information, visit our website at http://cellarridge.com/

Building Type Summary: 

single-family residence

Address: 

4235 Main St
Portland, OR 97215
United States

Lat. / Long.: 

POINT (-122.61889 45.513648)

Location Type: 

Urban

Köppen Climate Type: 

Csb

Climate Region: 

Zone 5

Solar Insolation: 

3.38 kWh/m2/day

Occupancy Type and Details: 

Owner-occupied
3 full-time occupants

Number of stories: 

2

Conditioned Floor Area: 

1 800

Multiple buildings?: 

Total number of units in project (all buildings): 

1

Total floor area of project (all buildings): 

1 800

Historic?: 

Completion date: 

Monday, November 4, 2013

Site description: 

The previous home demolished in the construction project was a 1950's factory-built cottage that had "fallen into disarray after being rented to multiple rock bands," homeowner Royapet said.

Materials: 

R-60 (24″) attic, R-38 underfloor, & R-35 wall insulation
Dense-pack blown in fiberglass insulation
Low-e Anderson 100 windows with recycled content in glass & frames
Bamboo flooring
80% post-consumer recycled metal roofing
Spero low formaldehyde MDF trim (no added urea-formaldehyde)
Zero VOC paint

Energy Highlights: 

The goal of Cellar Ridge and the homeowners was to balance a budget with sustainability. In order to do so, Cellar Ridge created the first 50/10 Portland home with 50 percent more energy efficient than code at just 10 percent greater cost.
The resulting home is certified Net Zero and Earth Advantage Platinum.

Electric Utility Company: 

PGE

Gas Utility Company: 

Northwest Natural

Door Area: 

21

Space heating - Manufacturer & Model: 

Mitsubishi MXZ4B36NA

Process: 

Built for solar access, the home’s street facing southern exposure required a creative approach to draw sunlight into the house, while maintaining privacy. A large wall of glass was placed on the south (front),second level wall. On the interior side of this glass the more open interior spaces allow sunlight to penetrate deep into the house on all levels for maximum levels of natural light.

Ratings: 

Earth Advantage Net Zero Certified Home (2015)
Energy Star Version 3
Earth Advantage

Energy Strategies: 

The modern home includes an extensive air sealing package, a recycled metal roof prepped for a future solar array, a heat recover ventilator and VOC-free interior finishes for cleaner indoor air quality.

Energy Use and Production Documentation: 

Above grade wall R-value: 

35.00

Flat attic R-value: 

60.00

Average window U-factor: 

0.30

Solar Heat Gain Coefficient: 

0.26

Visible Light Transmittance: 

0.42

Door U-Factor: 

0.30

Air Changes per hour, ACH50: 

3.10

Number of Bathrooms: 

3.00

Scope Description: 

Deconstructed a 720-square-foot cottage, recycled the building materials, and constructed a new 1800-square-foot home on the property.

Site conditions: 

previously developed land

Renewable Energy Sources: 

Renewable energy is generated within the building footprint (e.g. solar PV on the roof)

Summary of enclosure strategy/description: 

Dual wall construction with Henry Blueskin VP 100 and Rainscreen

Roof Assembly: 

Dry-in roof

Roof R-value: 

60.00

Window Description: 

Sierra Pacific Windows
Direct Glaze
pine

Door Description: 

Sierra Pacific Windows
douglas fur and pine

Number of Bedrooms: 

4

Project Team: 

Builder

Team Members: 

Cellar Ridge Construction
Carson Benner- Project Manager

m.o.daby design
Matthew Daby- Designer

Earth Advantage
Waylon White- Certifier

Status: 

Live

Basis of Performance Claim: 

Modeled
Zero Energy Program

Type of Construction: 

New
Retrofit

Days per year Building is fully occupied: 

365

Submitter Contact Email: 

Submitter Contact Phone Number: 

(503) 560-2263

Project Type: 

Zero Energy

Indoor Environment Description: 

Whole house HRV No carpeting was used

Weight: 

0