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Breathing room

SOLUTIONS FOR ATTAWAPISKAT

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3/23/13 SPECIAL THANKS TO:

TRU FACULTYMINDY MARSHALL-ARET

FACULTY OFARETSHANNON SMYRL-ENGLISH

DAN BISSONNETTE-SCIENCETOM HAAG & TRADES DEPT.

ADVISORSBILL BILLUPS-WOOD WORKS!

DR. JIEYING WANG-FPINNOVATIONS

SPONSORSNORTHERN TRAILER

TROUT CREEKSTRUCTURLAM

WOODPECKER HOMESHOME HARDWARE

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EXPERIMENTALSHED

CONFERENCE

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Experimental Shed-construction

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Attawapiskat

Ontario-Cree nation-population: 2000

-remote-northern-fly in only-barge transportation

-construction issues-focus on mouldprevention

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POOR

CONSTRUCTION-wet wood-damaged moisturebarriers-lack of skilled workers

INDOOR HUMIDITY

-boiling food & game-wood-burning stoves-laundry-closed windows-faulty ventilation

MOULD SPORES

-crowded houses & pets

-firewood indoors-rural & more vegetation

POOR

MAINTENANCE

-lack of know-how-scarce & costl

WATER & WARMTH

+ WOOD

=MOULD

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SOLUTION?

PART ONE:MOULD RESISTANCE

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Standard timber frame construction

From: Breathability: The Key to Building Performance. N.May (2005)

WATER AND SPORES INSIDE

INSULATION TRANSMITS WATER

WOOD ABSORBS TRAPPED WATER

SPORES DEVELOP INTO MOULD

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3/23/13 Breathing timber frameconstruction

WATER AND SPORES INSIDE

COMPATIBLE MATERIALS MOVE

WATER EVENLY THROUGHOUT

WATER IS NOT TRAPPED INSIDE

SPORES CANNOT DEVELOPOUTDOOR

From: Breathability: The Key to Building Performance. N.May (2005)

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SOLUTION?

PART TWO: PANEL WALLS

EASY INSTALLATIONLOWMAINTENANCE

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2X6 STUD FRAMED WALL

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SIPS (STRUCTURAL INSULATED PANEL)

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CLT (CROSS-LAMINATED TIMBER WALL

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NDW (WOOD FIBRE WALL)

/ /

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EXPERIMENTAL SHED SECTION

ROOF

FEED HOSE

VAPOURISER

FLOOR

ACCESS DUCT

WALL

LAMP

BASE

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SHED CONSTRUCTION

BASE & ROOF2X6 CONSTRUCTION INSULATED4X4 FRAME COVERED WITH BOARD

ASPHALT SHINGLES ON ROOF

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Apparatus and Method

40W incandescent light bulb -hot water vapouriser-relative humidity over 70%

Surface damage on each wall -extreme condensation

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RESULTS AT 3 WEEKS

NDW - NO MOULDSIPS - MANY AREAS

CLT - SMALL AREA

2X6 - LARGE DARK

AREAS

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RESULTS AT 6 WEEKS

PHOTOS TAKEN OF WALLS

IMAGES PREPARED AND ANALYSED

SOFTWARE USED: AUTOCAD

IMAGEJ

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2X6 PHOTO MOULD ANALYSIS

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CLT PHOTO MOULD ANALYSIS

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NDW PHOTO MOULD ANALYSIS

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SOLUTIONS FOR

ATTAWAPISKATBEST: NDW (WOOD FIBRE WALL)

-NO MOULD AFTER 3 WEEKS-EASY INSTALLATION

& MAINTENANCE

2ND CHOICE: CLT (CROSS-LAMINATED TIMBER)-SMALL AMOUNT OF MOULD

-SOME EASE OF INSTALLATION

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In this research we hope to find a

better way to build in isolated and,

often, largely aboriginal

communities.

It is only fitting that in

approaching this particular

Canadian challenge, a

representative Canadian solution