2012年10月18日 · Some spray foam companies have apparently submitted test results to local code officials that have convinced the code officials to waive the requirement for a thermal barrier or an ignition barrier. Log in or create an account to post an answer.

2018年3月17日 · Recently I had my cellar a crawl space professionally sprayed with closed cell foam. The company was supposed to return to spray on fire-retardant paint. The crawl space is difficult to work in and they company has offered me several hundred dollars discount to leave it unpainted. They tell me that there is actually no requirement for the fire retardant paint in a …

2019年3月15日 · Spray foam fire-retardant painting. Replies. Expert Member Dana Dorsett | Mar 15, 2019 11:01am | #1. Those ...

2012年11月30日 · The second question concerns whether a fire of unrelated origin -- for example, an electrical fire or a fire started by a cigarette -- burns hotter or faster in a house insulated with spray foam than it would in a house insulated with cellulose. I believe that the answer to this second question is yes, but GBA has no articles on the topic.

2020年6月8日 · Rafters were insulated with open cell spray foam to create a conditioned space since an air handler & gas fired furnace are in the attic. A fire retardant paint was then applied over the spray foam. The paint odor was very bad at first & the owner was told the smell would subside….but it hasn’t in 2 years & is especially strong in summer.

2014年4月11日 · Do building codes require spray foam insulation to be protected with a layer of drywall or a comparable barrier for fire safety? There is no simple answer to the question, for several reasons. The first reason is that the code is complicated. The second reason is that the code is poorly written. The third reason is that the code is subject to interpretation by local …

2021年10月28日 · Use the really small 12 board foot closed cell spray foam kits Dow makes. Submerge the cans inverted in a bucket of very warm water while spraying to maximize the coverage you get. These small kits are great for repairs like this, and run around $50 or so per kit. You’ll need to repair the fire retardant separately. Bill

2015年9月10日 · The foam was also covered with a fire-retardant paint . The contractor used an air handler in the attic that was attached to a removed window to vent the attic air to the outside. The reason for this posting, however, is that we’re still smelling a chemical smell in the house when the vent is turned off.

2023年8月17日 · So I ran a test. I took glob of normal great stuff, the glob of fire-rated great stuff, and a glob of the two part class A fire rated foam I sprayed in my attic on the ductwork. Night and day difference. I couldn't tell any difference in how the …

2013年11月25日 · We are general contractors and sub out the spray foam insulation jobs. Some contractors paint the fire retardant on right away and others say they have to wait a day and thus come back to the job later to paint. I'm trying to find out which is actually right. Do you have to wait 24 hours to paint the foam or not? Thanks, N