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Airtightness & Testing
Airtightness & Testing
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Ed May
Partner, Building-Type LLC

Hi Jason,

I wouldn't rely on your denspack cellulose on its own to provide airtightness to the Passive House levels. While it's certainly true that denspack cellulose will help your airtightness overall, that kind of insulation should always be coupled... (More)

See videos and links at


We are representing EcoCocon straw SIPs in the US... these are part of a proven straw based building system with PHI Certified Components. Please feel free to get in touch with more questions or... (More)