jung haus


michigan’s first certified passive house

Here we share some observations about and snapshots of the Passive House we had built in Oakland County, Michigan. All photographs were taken by us unless otherwise noted.

—Maura and Kurt Jung

A blower door test conducted by Matt Rosendaul of Great Lakes Home Performance confirmed that the house is on target for meeting the Passive House standard for air tightness. This test involves sealing a doorway with an air barrier which includes a variable speed fan that is adjusted to achieve an indoor pressure 50 pascals lower, and in a subsequent test higher, than the outside pressure. The flow of air through the fan indicates leakage through the building envelope. To locate gaps, the pressure differential is increased and a smoke pencil is used at various places to detect leaks in the air barrier. The readings we achieved fell below 300 cubic feet per minute. This compares quite favorably with the 8,000 cubic feet per minute that Matt recorded before taking remedial action on a Victorian house he once owned. The final blower test will take place after caulking has been done and after insulation and drywall have been installed. A window rather than a door will be used for improved sealing of the fan barrier, and a more sensitive duct instrument will be used for measurements.

Matt and Brilla calculating air change values
Matt and Brilla calculating air change values
Monitoring pressure differential and leakage
Monitoring pressure differential and leakage
Blower and monitor assembly
Blower and monitor assembly
Using a smoke pencil to check for leaks
Using a smoke pencil to check for leaks

Posts

April 2012

Breaking ground

Preparing the footings

Completing the footing forms

The Passive House standard

Compromises

Footings poured

Crawlspace walls

Concrete poured

Additional insulation

Drain tile wrapped

May 2012

Backfilling and compaction

Crawlspace backfilled

Support posts installed

Framing delivered and barrier installed

Installing TJI joists

Installing the subflooring

Installing the first floor walls

Preparing for the second floor

Straight, Plumb, Level, Square and now Airtight

Second floor taking shape

Attic joists

Roof trusses

Roof trusses and attic deck

Roof deck and overhangs

Fascia boards

June 2012

Crawl space insulation and roof

Made in Michigan

Special delivery

Crawl space preparation

First floor preparation, TJI base

Sealing air barrier

Soffits and tape seams

First floor concrete and first envelope trusses

Crawlspace concrete

Excavating, trusses and crawlspace stairway

Water line excavation

Stairway, window framing

Fiberboard installation

Fiberboard installation and wrap

July 2012

Framing crawlspace walls

Envelope, plumbing

Beginning of wraparound porch

Porch

Porch and ceiling

Wrap-around porch

August 2012

Wrap-around porch

Window installation

Preliminary blower door test

Insulation

September 2012

Wiring, insulation, porch roof

Siding

Siding progress

Well drilled

Mechanical system installation

October 2012

Insulation of inside wall

Drywall and siding

Drywall

Drywall and attic insulation

Drywall, mechanical system

Wood floors and exterior painting

Doors and cabinetry delivered

November 2012

Exterior concrete, kitchen cabinets

Upstair floors, porch siding

Painting, tiling, flooring

WKAR interview, floor finishing

Exterior concrete, crawlspace walls and floor

Crawlspace floor

Compressors, exterior lights, tile

Entrances: drive and house

December 2012

Trim work

Front entrance

Floors and windows

Exemplary results in blower door test

Walkway, bathroom vanity top

Counter tops

Kitchen back splash tiling

January 2013

Upstairs painting

Upstairs painting and trim

Downstairs door finishing

Upstairs floor finishing, water conditioner

Downstairs painting

Kitchen shelf, painting

Cabinetry trim, painting

February 2013

Cabinetry hardware

Final interior painting

First Holly Passive House Conference

March 2013

Certificate of Occupancy

Home

December 2013

Settled in

January 2014

Winter storm

February 2014

Winter

Snowshoeing

April 2014

Habitat restoration

May 2014

May

August 2015

Energy

February 2017

Life in a Passive House

December 2017

Are passive homes the future?

May 2019

Meanwhile, at the beaver dam

July 2020

Geothermal

March 2023

Ten years

Links of interest

G • O Logic

Energy Wise Homes

J F Shewchuck Construction

Bostwick Excavating

Hanneman and Fineis Concrete Construction

Northern Michigan Hardwoods

RTM Heating & Cooling

Bach Electric

GoldStar Hardwood

Randy Lalone Well Drilling

Nu•Wool Premium Cellulose Insulation

Weaver Tile

Passive House Academy

Pro Trees Unlimited

MPC Cashway Lumber

Lumbermen’s Inc

Spartan Painting

Reynolds Water Conditioning, Co.

Zehnder

Mitsubishi Electric Cooling & Heating

Young Supply

PlantWise

Forbes article

Fine Homebuilding

Proud Green Home article

WKAR article

Green Building Advisor article

Maura Jung and Matt O'Malia discuss house

Various images

Copyright © 2012–2023 • Maura and Kurt Jung

Questions? Comments? Contact us at info@jung.haus

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