JEuriech Posted January 29, 2012 Report Share Posted January 29, 2012 This past week, I did a one year warranty inspection on a house that had sprayed foam on the attic ceiling. I assume this is what everyone calls sprayed polyurethane foam. My next couple of posts will be about the same house and I'm hoping someone can help explain a couple of things for me. The main house and garage area were separated by a wall. The garage area only has insulation on the wall between the two areas. How can you tell by looking at the insulation, if it is open or closed cell? If I cut the insulation open, does one insulation have more or larger air (gas) bubbles? When we are talking about 1/2 lb or 2 lb insulation, how do you tell the difference? Thanks, Jeff Euriech Peoria Arizona Download Attachment: 1A SF 2.JPG 443.51 KB Download Attachment: 1A SF 8.JPG 687.85 KB Download Attachment: 1A SF 14.JPG 694.3 KB Quote Link to comment Share on other sites More sharing options...
hspinnler Posted January 30, 2012 Report Share Posted January 30, 2012 Check out the links and videos on this site: http://www.icynene.com/residential I have limited experience in seeing this stuff in attics and walls, however, an easy way to identify closed cell vs. open cell is that open sell is soft and flexible while the closed cell is rigid. Quote Link to comment Share on other sites More sharing options...
Tony_01 Posted October 9, 2012 Report Share Posted October 9, 2012 Can you please tell me what is the advantage of foam spray in attic? Is it similar to waterproofing? Quote Link to comment Share on other sites More sharing options...
kurt Posted October 9, 2012 Report Share Posted October 9, 2012 No it is not similar to waterproofing. It's insulation. Quote Link to comment Share on other sites More sharing options...
Marc Posted October 9, 2012 Report Share Posted October 9, 2012 It's also a sealant. It reduces convection losses that result from air infiltration. Marc Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted October 9, 2012 Report Share Posted October 9, 2012 Go to spraypolyurethane.org. It's the SPF Industry Association. Quote Link to comment Share on other sites More sharing options...
kurt Posted October 9, 2012 Report Share Posted October 9, 2012 It's also aN AIR sealant. It reduces convection losses that result from air infiltration. Marc Yes, one of it's greatest benefits is air sealing. Quote Link to comment Share on other sites More sharing options...
mlparham Posted October 12, 2012 Report Share Posted October 12, 2012 It's also a man cave. I think a 50 incher can fit in there. Quote Link to comment Share on other sites More sharing options...
Sarah Wold Posted November 23, 2012 Report Share Posted November 23, 2012 Closed-cell foam has tiny foam cells that are closed and packed together. These holes are filled with a gas that helps the foam rise and help in insulation. In Open-cell foam the tiny cells are not closely packed. You can make out difference by pressing them. Open cell foam has softer felling than closed foam. Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted November 23, 2012 Report Share Posted November 23, 2012 Sarah, the difference between open and closed cell foam is a threshold. If 89% of the cells are closed it's considered open cell foam, 90% and it is closed cell foam. The gas is hydrogen and oxygen, the most common blowing agent in SPF is water. The feel of the foam is a density issue, measured as the weight of the foam in pounds per cubic foot. With foam manufactured in place (like spray foam insulation) it is more reliable to make dense foam with a closed structure and light foam with an open structure, but they are not mutually exclusive. Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted November 23, 2012 Report Share Posted November 23, 2012 Sarah, who states she's from NY, has an IP address in New Delhi, India. Watch for her return to drop links into her useless posts. Quote Link to comment Share on other sites More sharing options...
Erby Posted November 24, 2012 Report Share Posted November 24, 2012 Yeah Bill, seems they've found a new way of link dropping. Make several useless but non-issue posts. Edit the signature block to include a link. Bang! an automatic link in each of the useless crap posts they've done. Good thing you mods have your eyes open! Quote Link to comment Share on other sites More sharing options...
hausdok Posted November 24, 2012 Report Share Posted November 24, 2012 Last night at about 1:30 am I locked out two different fellows that had come on here days, even weeks, registered and then left without posting. They came back, tried to post a couple of really stupid comments that made no sense whatsoever and then disappeared. At that point, I deleted their posts and locked their profile. I'm sure they'll be back but with your help we can prevent them from posting here. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
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