Case Study
View more images below
Blip Design Architects:
Seattle Remodel
 |
Built Green Rating: 3 Star
Remodeler Checklist
Location: Seattle Phinney Neighborhood
|
|
Remodeling an existing home is an excellent way to save the use of virgin materials and reuse products that have already been manufactured. This Seattle home in the Phinney neighborhood was recently remodeled with a 3-Star Built Green second story addition. The project architect followed the Built Green Remodeler Checklist that is specifically designed for home remodels or additions.
This home features many extra features that promote greater energy efficiency such as constructing the addition using an airtight drywall approach for framing and performing a blower door test to find possible air leaks around doors and windows. Energy Star®-rated appliances can provide savings on utility bills for the homeowners. Extra attention was given to providing high quality indoor air for a healthier indoor environment for the residents. Low toxic materials were installed, along with a highly efficient ventilation system that was also tested for performance. Recycled content and durable materials were used such as HardiePlank siding that is warranted for at least 50 years.
The many green features include:
Site and Water Protection
- as a second story addition, no additional impervious surfaces were added outside the home’s existing footprint
- during construction, trees and other vegetation were protected and vegetation that had to moved was donated
- to protect the soil, following construction, no part of the site was left uncovered or unstabilized
- low-toxic outdoor lumber was used in landscaping
Using Energy Wisely
- energy efficiency was improved for the entire house, including the addition
- the addition was wrapped with an exterior air infiltration barrier
- airtight drywall construction was used for framing the addition
- a blower door test was performed
- added insulation promotes better energy efficiency
- energy modeling showed a reduction in space conditioning requirements
- NFRC-certified windows were installed with a u-factor of 0.35+
- Energy Star heating/cooling equipment, refrigerator, dishwasher were installed
- light colored interior finishes promote daylighting
- heating/cooling equipment is centrally located thereby reducing the size required for the distribution system, and it is also located within the heated space
- heat recovery ventilator was installed
Health and Indoor Air Quality
- ceramic tile floors were installed in the addition
- low-VOC paints cover large interior surfaces
- low-VOC sealers, adhesives and grouts were used
- no carpet was installed
- ventilation system was tested for performance
- operable windows allow cross ventilation
- ventilation system filters were upgraded
- whole house fan
Using Materials Wisely and Reducing Waste
- a built-in kitchen recycling area facilitates homeowner recycling
- extensive recycling and salvaging of materials during construction
- flyash was added to the foundation concrete
- installed locally produced materials that save transportations costs
- 50-year siding and 40-year roofing
- engineered structural products save the use of larger trees for wood
- salvaged lumber was remilled and used
- at least 50% of the dimensional lumber used was certified sustainable
Still Images
Click on an image to enlarge
back to top
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)