Expert: Ted Barnhill (Principal, Design45 LLC) - 8/27/2008

Question
I happened to see the previous question to you regarding use of T-111 for interior walls.  We have a small cabin and have already installed the T-111 for paneling.  I am quite concerned about the offgas of formaldehyde-based glue you mentioned.  We use our cabin through the winter months with a wood-burning stove used for heat.  Are we in any danger from the offgas? Thank you for your help and advice.  I will look for a response directed to my email address.   -- Tina Belmont


Answer
Tina,

If you aren't especially chemically-sensitive, you will likely be fine.  The offgassing is fairly extreme initially, and quickly tapers down to low levels.  I suggest that you air the cabin out very well when you are away; leave several windows cracked if possible.

If it helps ease your mind, the use of formaldehyde in buildings and furniture has been very widespread for decades; you have surely been exposed to it in the past without knowing it.  If you do experience any symptoms potentially-related to indoor air quality, you could have the air tested; the CDC's acceptable level is 8 parts per billion.

Good luck, Ted

P.S.  Sorry that my reply was delayed; I have been out of town for a few days.