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