Beacon Hill Residence

Seattle, WA

Participant information:
Premier Building Systems
Becky Susan
Puyallup, WA 98375
Phone: 253.225.1617
Email Address: becky.susan@premiersips.com
Website: www.premiersips.com

Category: Single Family under 3,000 sq. ft. - High Perfomance

Project information:
Beacon Hill Residence
Seattle, WA

Date Completed: March 2018

Dimensions of building: 39'x28'6" First Floor, 39'x28'6" Second Floor

Total sq. ft. of conditioned space: 1,949 sq ft

Built By:
TC Legend Homes
Ted Clifton Jr.
702 Kentucky Street #339
Bellingham, WA 98225

Panels Manufactured By: Premier Building Systems

Describe the end use of the building: Residential Single Family Positive Energy Home

TC Legend Homes was selected as the builder for this project. TCL coordinated all aspects of the project from design through construction and chose the best energy efficient envelope to fit the homeowner's budget - much due in part to the SIP system!

SIP wall thickness and core material: 6" GPS Core - R29
SIP roof thickness and core material: 10" GPS Core - R48

Install time is days, not weeks with standard framing - which equates to a reduction in framing and other trade labor. Outside of labor, the use of SIPs did not equate to reduced construction material costs, however the costs are comparable if not less expansive overall for the options available on a net-zero/positive energy project. Energy savings are significant with an airtight structure and strategic HVAC/Solar systems.

The entire project was engineered to both fit the homeowner's budget in the heart of Seattle, and be as energy efficient as possible. This required planning from the start to ensure all systems complimented and optimized. While there is considerable up front planning to achieve high levels of energy efficiency (especially in expensive Seattle region) on a budget, the construction process is optimized and all systems being pre-planned install quickly for reduced construction time.

Please list any certifications the project received:

Energy Star Certified New Home
Washington Built Green - Highest 5-Star Status
EPA Indoor AirPLUS Qualified Home
DOE Net Zero Energy Ready Home

HERS Index: 7

Blower door test results: ACH50 0.36 & 0.41 (two tests).

Energy use intensity in kBtu/ft2: Estimated energy use annually: 6.2 MMBtu

Describe the HVAC system used on the project:

Air source heat pump, electric 3.5 COP
Ventilation: Balanced HRV 84 cfm, 34 watts
Thermostat: Programmable heating and cooling

Describe any other energy-saving materials used in the building envelope other than SIPs:

Triple-Pane Windows, U-Value: 0.180, SHGC: 0.300
Solar Array
Under Slab Insulation, R-20 under & R-20 Edge Slab

Please list any energy-efficient products or design features, such as lighting, hot water heating, appliances, passive solar:

Passive Solar Orientation
Water heating via heat pump w fan coil units/electric, 2.5 EF, 50 Gal
Radiant floor heat

Were any solar panels installed on the project: Photovoltaics estimated at an annual energy consumption of -22 MMBTu/yr (or -$842.00 for annual energy savings)

Please list any sustainable materials or design features not listed above: