Q&A Forums

Igniotion and Thermal Protection Post New Topic | Post Reply

Author Comments
Ervin McKinney
Posted: Sep 05, 2012 10:55 AM
Igniotion and Thermal Protection
Are there any foams that can be used in a basement or crawlspace that do not require an ignition or a thermal barrier?
This would include spray foams and foam boards.
maurice richter
Posted: Sep 06, 2012 06:48 AM
I am just a fellow home owner. Would it be appropriate to ask if a follow-up question you could ask is "what can ignition barriers be?" For instance, are you going for a certain "look" or "feel", or going for a certain cost or avoid a cost, or?
Bryan Kwater
Posted: Sep 06, 2012 08:55 AM
MOST closed cell foams have had ICC testing and do not require an ignition barrier in crawlspaces. I am not aware of any foams that do not require a thermal barrier in a basement or other occupied area, but we'll see if anyone chimes in with one.

There are a few board foams that can be installed without a thermal barrier. One of them is Dow Thermax.
David Lamb
Posted: Nov 12, 2012 04:53 PM
If you refer to the AC377 section X2.2 it will spell out exactly where an ignition barrier is acceptable and where a thermal barrier is required. The basic rule is that if it is exposed foam and in an area attached to the air film of the house a Thermal Barrier is necessary.
mark moyer
Posted: Nov 13, 2012 06:37 AM
and if you refer to your icc-es reports..
you do have em dont you???
you will see that many of you can shoot exposed in attics and crawls with certain restrictions...in certain applications...
why,, there is even open cells being added daily that meet the testing...
testing??wat dat??

You need to login to reply to this topic. Please click here to login.