Building Use: Detached single-family residence
Project Type: New passive house building
A modern designed, 3 bedroom, 2 bath, private residence located in rural western Washington. Built for a young newly-wed couple as a forever home for themselves and the generations to come, the Vogel Haus is designed with a Passive House addition in mind to accommodate their growing family.
Location: | Olympia, Washington 98506 | |
Dwelling Units: | 1 | |
PH Calculation Protocol(s): | PHI | |
PH Modeling Software(s): | PHPP | |
PH Certification(s): | PHI | |
Construction Cost: | $ 500,000 USD | |
Year Of Construction: | 2017 | |
Project Size | ||
Floor Area: | 1,702.2 ft2TFA | 158.1 m2TFA |
Performance | ||
Heating Degree Days: | 5,757 °F•day/yr | 3,198.3 °C•day/yr |
Annual heat demand: | 4.68 kBtu/yr•ft2TFA | 14.8 kWh/yr•m2TFA |
Heat load: | 3.98 Btu/hr•ft2TFA | 12.6 W/m2TFA |
Primary energy demand: | 20.85 kBtu/yr•ft2TFA | 65.8 kWh/yr•m2TFA |
Airtightness: | 0.6 ACH50 | |
Envelope | ||
Construction Type: | wood | |
Floor Assembly: | Slab on grade - 4" heated polished concrete slab w/ 10" deep sand heat sink. 6 mil visqueen air barrier. 12" square bond beam foundation. Wrapped in 8" high density EPS insulation. | |
Wall Assembly: | Wood framed - 1/2" GWB. 2x8 wall with 2x4 staggered studs, dense packed with fiberglass insulation. 1/2" OSB coated with Prosoco cat 5 air and weather barrier. 4" Neopor EPS insulation. 3/4" rains screen. Steel siding. | |
Roof Assembly: | Continuous PVC membrane roofing. 1/2" OSB sheathing. Manufactured trusses with 24" of blown cellulose insulation. 1/2" air sealed OSB. 1/2" GWB. | |
Windows: | Zola thermal uPVC Lamilux skylight | |
Entry Doors: | Therma Tru flush panel | |
Systems | ||
Ventilation system: | Zehnder ComfoAir350 | |
Heating/Cooling system: | Sanden SANCO2 Heat Pump Water Heater w/ hydronic in-slab radiant heat | |
Domestic hot water system: | Sanden SANCO2 Heat Pump Water Heater | |
Team | ||
Passive House Consultant: | Skylar Swinford - Energy Systems Consultants | |
Passive House Consultant Certification: | PHI,PHIUS | |
Architect: | Tessa Smith - The Artisans Group | |
Structural Engineer: | MC squared inc. | |
Contractor: | Randy Foster - The Artisans Group | |
Comments | ||
Additional Information: | Steel structure for supporting the building's "wing roofs" eliminates all possibilities of thermal bridging. We will be using this approach again. One of the first projects in the USA to use the Sanden CO2 pump. We are impressed with the system. Our first time flashing and sealing UPVC windows to a slab on grade floor. We will change our detailing on future projects. | |
Project Website: | http://artisansgroup.com/portfolio/vogel-haus/ |