Journal of Poor Homebuilding – Blobs of Cellulose Mold

by Erik North on November 30, 2012

Post image for Journal of Poor Homebuilding – Blobs of Cellulose Mold

This was a first. I’ve never seen dense pack cellulose in a basement. The sills had been netted and packed with cellulose. The netting and been pulled down in some places but the packed cellulose remained. This may not have been a problem if not for the surrounding swamp.

The house had essentially been built in a marsh. The moisture was saturating the foundation and wicking up into the sills. Lotsa moisture plus lotsa mold food (plant cellulose) equals lotsa mold. *Yech*

(Sorry about the dark photo…flash had died on the camera).


Moldy Cellulose

Homegrown Penicillin

{ 2 comments… read them below or add one }

Blake December 1, 2012 at 12:30 am

Faced a similar problem on today’s audit- not cellulose with mold, but the option of installing cellulose in a home with water up through the wood.

Suggestions or questions appreciated.


Erik North December 1, 2012 at 12:45 am


Thanks for the comment. It’s hard to say without knowing more details but adding insulation before remedying moisture problems is asking for trouble.

Adding insulation to any building assembly reduces energy flows which reduces drying potential.



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