Case Study

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Seattle Street of Dreams

The Seattle Street of Dreams is a Pacific Northwest icon as a showcase for luxury homes, and this year the participants in the show were asked to certify their projects as Built Green. Of the five homes in the show, two attained the 3-Star level, two achieved 4-Star, and one certified at the 5-Star level. Each of them utilized a full spectrum of green strategies from innovative drought tolerant landscaping strategies to cutting edge resource efficient materials.
By the end of August over 80,000 people had toured the homes and been exposed to green building as it can be applied in the custom and luxury housing markets- very stylishly. The below strategies are a cross-section of those used by various homes on the street, but may not have been used by each home individually.

Some of the many green features include:

Site and Water Protection

• Uni Eco-Stone® pervious driveway systems and pervious walkways
• Used a water management system to allow for groundwater recharge
• Drought tolerant native grasses used to give lawn appearance without turf grass
• Living wall showcased landscaping in a vertical format
• Use of slow-release organic fertilizers
• Amended soils to 8-10 inch depth
• Majority of the community will remain open space
• Extensive use of dual flush toilets in each home

Energy-Efficiency

• Super-insulation of walls to R-26 or better
• Extensive use of compact fluorescent lighting
• Performance tested for duct leakage
• Windows rated at U-value of .30 or better
• Installation of high efficiency furnaces (92%-96.6%)
• Rinnai® tankless hot water heater with Metlund® on-demand recirculating hot water system
• Icynene™ Spray foam insulation and formaldehyde free insulation
• Use of Fantech® heat recovery ventilator

Material Use

• Forest Stewardship Council (FSC) certified Eco-Timber® flooring used extensively
• Treadlight™ wood floors harvested from small diameter trees from forest thinning projects in Montana
• Cork floors widely utilized along with wool carpeting, and true linoleum
• Extensive recycling plan for jobsite waste that included recycling of wood, metal scraps, drywall, concrete, packaging and cardboard
• Paperstone™, Ice Stone™ and Vetrazzo™ countertops widely used, all with post-consumer recycled content
• Use of finger jointed framing material
• Use of products with recycled content such as glass tile, drywall, carpet pad and insulation
• Recycled aluminum cabinet pulls provided by Sprecra Decor
• Installation of a 50-year siding material and 40-year roofing materials

Indoor Air Quality

• Low VOC paints, clay paints and sealers used throughout
• Sun-Pure™ photo-catalytic air purification
• Carpet used only in low traffic areas, most carpet was wool
• No added formaldehyde plywood and pressboard used in cabinetry and closet systems
• Installation of a central vacuum systems, vented to the outside
• Installation of sealed combustion heating and hot water equipment with power venting
• Whole house filtration systems with positive interior pressure
• DuPont™ Tyvek® home wraps used
• Anti-microbial mold prevention sprayed on framing members and cavities prior to insulation and sheathing

Still Images

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