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Passive House NorthwestAIA CEU Provider
Passive House Case Studies: Roy
Passivhaus, Owl Haven Passive,
and View Haus 5
AIA Course # phnw087
Various March 27, 2015
Owl Haven Passive
Owl Haven Passive House
Who Am I ?
Owl Haven Passive House
Owner
Ken Dickey
Coming From 20th Cent Ideal
Coming From 20th Cent Ideal
Coming From 20th Cent Ideal
Coming From 20th Cent Ideal
Coming From 20th Cent Ideal
Build a Passive House?
● Large Risks● Don't See What You Are Buying [vs built]● Not the Obvious thing to do [Not Bandwagon]● Not an Investment [$]● Not Low Stress
Build a Passive House?
● Large Risks● Don't See What You Are Buying [vs built]● Not the Obvious thing to do [Not Bandwagon]● Not an Investment [$]● Not Low Stress● Not a Rational Decision !
21st Century Ideal – Low Carbon Lifestyle
● “Walk in Beauty”● Sustainability Ethic● Downsize & Simplify● Character – a Home, not a Building● Simple Elegance● Align Actions with Values
Get Off Carbon
21st Century Ideal – Low Carbon Lifestyle
21st Century Ideal – Low Carbon Lifestyle
Owl Haven Passive
● Location: Whidbey Island● Topology: single level for couple [1 bedrm, 1 toilet!]● PH Floor Area: 1719 sq ft● Design: Robert Moore, Architect● Build: Richard Epstein, Inc.● Owners: Ken & Ellen Dickey
Owl Haven Passive
● Foundation: Air Seal; CDF; 14” EPS; Slab-on-grade● Wall: 2x6 Stud; 7” Cork; Rain Screen; Cement Board ● Roof: 34”+ Blown in Fiberglass; Metal Roof● Windows: Intus triple glazed● Ventilation: Zehnder CA 200 HRV [92% efficient]
● Supplemental Heat: radiant cove electric [99+% efficient]
● Lighting: LED● Air Seal: StegoWrap / PROSOCO >> 0.45 ACH50
● [Wired for PV on S facing garage]
Build Site
Build Site
Floor Plan
Floor Plan
As Realized
As Realized
Foundation
Foundation
Wall System
Wall System
Wall System
Wall System
Wall System
Wall System
Amorim ThermaCork
● Not a tree, but a house coated in 7” of tree bark● Low embodied energy (boiler burns cork dust)● Sequesters large amount of carbon● Bugs hate it; Waterproof; R4-inch; Quiet!● Nothing added – no fire retardants; non-toxic● Harvested sustainably since Roman times● Cork Forrest own ecology niche; rare species
Wall System
Wall System
Wall System
Air Barrier
Air Sealing Detail
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Minimize Air Seal Penetrations
● Ceiling – Unified Plumbing Vent● Slab – Water In, Septic Out● Walls
– HRV Supply & Exhaust
– DHW Pressure Relief + HRV Condensation Drain
– Electrical Cables [2 pipes; SubPanel inside air seal]
– Windows [ many! ]
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Drop Ceiling / Race
Wall Sconces
Breezeway
Breezeway
Breezeway
Lessons
● Prefer Poly Air Seal above CDF below EPS● Layered Wall System Labor Inten$ive
– Would have liked Cork SIPs
● Not cheap: $ 230 / sq ft, but we love it !● You will make mistakes somewhere
– If you don't require perfection, your life can be perfect !
It takes a village to raise a house
Owl Haven Passive Q & A
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Owl Haven Passive
Passive House NorthwestAIA CEU Provider
Passive House Case Studies: Roy
Passivhaus, Owl Haven Passive,
and View Haus 5
AIA Course # phnw087
Various March 27, 2015
Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
This course is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.___________________________________________Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the
presentation without written permission of the speaker is prohibited.
© George Ostrow et al
Copyright Materials
A comprehensive look into three projects utilizing green building science in the Pacific Northwest. Two single family residences and one town home project, each demonstrating distinctive high performance, Passive House standards.
CourseDescription
LearningObjectives
1. Participants will be able to summarize energy efficiency, ventilation, design, and
construction criteria for the Passive house standard;
2. Participants will be able to identify technical challenges of applying passive house
design principles to both single-family residential and multi-family housing;
3. Participants will be able to identify key cost premiums and constructability
challenges;
4. Attendees will be able to apply lessons learned to reduce future costs and
barriers to adoption for this aggressive energy efficiency standard.
At the end of the this course, participants will be able to:
This concludes The American Institute of Architects Continuing Education Systems
Course
Passive House Northwest education@phnw.org
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