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scallender
Closed Cell Foam

We are building a new house and I would like to maximize my insulation in the walls R19 or so.We are in a tidal section of South East Va where it is humid and hot.

Is there any research or information on fumes caused by closed cell foam insulation?
Is there a risk of "sick house" due to inadequate flow of fresh air or fumes from the foam?

Will open cell foam gather too much humidity and leave an organic base for mold and such to grow?

Thanks
scallender

canuk
Re: Closed Cell Foam
Quote:

Is there any research or information on fumes caused by closed cell foam insulation?

just Google foam insulation and you'll find all sorts of information.

The current generation of foams don't have the toxic fumes like the early Urea- Formaldehyde Foam Insulation ( UFFI) for example.
Basically the formulations as well as the carrier used are generally inert with any off gassing that may occur is immediate.

Quote:

Is there a risk of "sick house" due to inadequate flow of fresh air or fumes from the foam?

As the home become more air tight it's important to provide a means of air exchange. basically removing the stale inside air and exchanging with fresh outside air in a controlled fashion. One method is by mechanical ventilation like using a Heat Recovery Ventilation/ Energy Recovery Ventilation ( HRV/ERV) system. Bathroom and kitchen exhaust fans are useful for removing air but there has to be a system of replacing ( make up ) the air that is removed.

The concern for a " sick" house from foam insulation is probably less than from other common household pollutants. Things like chemicals used in cleaning , formaldehyde from furniture and construction materials , dust , and daily moisture accumulations would be more of a concern.

Quote:

Will open cell foam gather too much humidity and leave an organic base for mold and such to grow?

Generally foam insulation are not organic therefore mold will not feed on the foam itself.

Just some thoughts. :)

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