Some foam insulation is restricted by codes

Q. We are restoring an old house with a high-ceiling cellar. I have covered the inside masonry foundation walls with 2-inch-thick Styrofoam-brand insulation. However, I have been told that the material not only is flammable but produces a dangerous gas when it burns. Is there a danger? John A. Waddington Trenton, N.J.

A. Styrofoam-brand insulation is a foamed cellular organic substance, made by the Dow Chemical Company, which contains a great many air pockets. Hence, its insulation value is high -- about R-7 per inch of thickness.

The substance may burn at about 600 degrees F. and does emit a toxic gas when burning.

Some building codes, in fact, restrict its use.

Telephone your local building department and fire chief for their appraisal and their approved use of the material in your basement. There may be a fire-retardant material which, when applied to the insulation, will make it acceptable as exposed insulation in your basement. Be sure to follow the local rules.

About these ads
Sponsored Content by LockerDome

We want to hear, did we miss an angle we should have covered? Should we come back to this topic? Or just give us a rating for this story. We want to hear from you.

Loading...

Loading...

Loading...

Save for later

Save
Cancel

Saved ( of items)

This item has been saved to read later from any device.
Access saved items through your user name at the top of the page.

View Saved Items

OK

Failed to save

You reached the limit of 20 saved items.
Please visit following link to manage you saved items.

View Saved Items

OK

Failed to save

You have already saved this item.

View Saved Items

OK