Microbial sampling in building surveys what and why

Post on 17-Feb-2017

99 views 2 download

Transcript of Microbial sampling in building surveys what and why

www.mycoteam.no

Microbial sampling in building surveys

what and why are we sampling?

Maria Nunez, Johan MattssonMycoteam as, Norway

201.05.2023

Klikk ikonet for å legge til et bilde

301.05.2023

401.05.2023

501.05.2023

What shows up in buildings? What grows in buildings?

SINK SOURCE

601.05.2023

WATER

Where is the enemy hiding?

Extensive mould growth

701.05.2023

801.05.2023

Klikk ikonet for å legge til et bilde

Only spores, no activity

Clean and disinfect the surface, and you will get the same dust next time the fungus produce spores

Use basic biology (species natural history or trades) in order to find the active fungus!

901.05.2023

Here it is! Hidden in building structures

Visual surveys

Sampling

Technical surveys Moisture measurements

… always looking for the source

THE EXPERIENCED MOULD INSPECTOR

1101.05.2023

Technical surveys: go beyond surfaces

1201.05.2023

… and you will find the real building problem!

High RH, cold

Condensation

Leak, cold

Condensation

High RH, warm

Leak, surface water

Condensation

High RH, fruit jam

Leak/Condens., warm

Penicillium Ulocladium Acremonium

WallemiaAspergillusCladosporium

Verticillium Trichoderma Stachybotrys)

Biologists can «read» mould damage

1401.05.2023

Building physicsBuilding biology

1501.05.2023

Be open for surprises!We are dealing with living and active

organisms! – or at least we should…