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In regards to section 11 (safety issues, cellulose materials), how are the last two bullets relevant to the topic of loose-fill cellulose in 11.2?It states "Although cellulose is 100% natural, and usually made from recycled material, loose-fill cellulose is not as environmentally-friendly as some people would have you believe." The final two points under this statement, if anything, seem to read as positive points about cellulose's environmental friendliness (not negative points as the initial statement implies). If cellulose isn't susceptible to mold, then aren't the final two points contradictary to the initial statement above the three bullets? Ricojonah 13:25, 26 August 2007 (UTC)
The fiberglass industry has been trying for years to drag cellulose insulation through the mud. Like all things www and wikipedia, the industry trade groups are filling these articles with lies instead of hard science and facts. The louder the voices are against something, then the better the option is either for the environment or energy efficiency. Oil and petrochemicals et al. have a lot of moles out there in the blogs and threads spewing a bunch of worthless false information in the end. —Preceding unsigned comment added by 74.130.112.33 ( talk) 00:59, 11 August 2010 (UTC) My concerns with cellulose come from postings such as http://www.sawmillcreek.org/showthread.php?p=59257 "It looses is fire retardant ability in approximately 5 years then is is just nothing more than ground up paper. We vacuumed cellulose out of buildings the you could drop a match on & whoosh it would be gone in an instant." I would want to know whether this issue (a) is real, (b) if this is true for older material, is it still true for more modern material or has this issue been addressed and resolved by the manufacturers and tested by independent test labs. —Preceding unsigned comment added by 216.254.57.30 ( talk) 21:48, 26 November 2010 (UTC)
There are a lot of myths about radiant barriers. The section here seemed to repeat some of them; whereas the article on radiant barriers is pretty much free of them. I removed some of the myth-influences stuff from here, while resisting the temptation to explain it more fully, because the main radiant barriers page is the right place for that. If you like some of what I removed, I suggest adding it back to the radiant barriers article, where that can be debated and developed more fully. Ccrrccrr 23:05, 7 November 2007 (UTC)
There appeared to be a minor edit war going on, with two anonymous parties deleting each others contributions in this section, while both also added value. I attempted to construct a best-of-both edit. If I did some thing wrong, please discuss here.
I replaced specific R-value and cost numbers with more general statements. I would welcome quantitative data there if reliable sources are cited.
I restored the information on toxic fumes in combustion, HCFCs (added some info there), and solvent and sunlight protection. Ccrrccrr 19:03, 30 November 2007 (UTC)
I added a bullet about the visions problems that spray foam insulation may give you. Zach4677 ( talk) 03:28, 3 July 2008 (UTC)
There was a line saying "* Can fill wall cavities in finished walls without tearing the walls apart (like loose-fill).". Everything I see suggests that you use a similar sized entrance hole to insert the foam or fill. Granted, I'm thinking cellulose here (video is available at This Old House of the installation) but it seems likely that the same is true for other loose fill. Therefore, I changed the parenthetical to refer to batts, since those do require removing the wall to re-insulate. If someone sees it otherwise, please change and cite.
Similarly, there was a statement "* Expands while curing, filling bypasses, and providing excellent resistance to air infiltration (unlike batts, blankets, and most types of loose-fill, which can leave bypasses and air pockets).". Everything I have read suggests that loose fill, and especially wet or semi-wet cellulose, do a very good job of filling against infiltration. While spray foam is likely superior, the statement (and perhaps the section) seemed to denigrate loose-fill more than it should. I changed the wording to "(unlike batts and blankets, which can leave bypasses and air pockets, and superior to some types of loose-fill)". Please change and cite if you see it otherwise. Regarding wet spray, it seemed to me from viewing finished installations to be just as good as spray foam, for what it is worth. -- Alphastream ( talk) 04:19, 17 March 2008 (UTC)
I just removed this section from the R-value (insulation) article because 1) it is better suited to this article, and 2) it has some errors.
I am currently creating a page with information exclusively about cellulose insulation. I am interested in the history of the regulation of insulation. From what I have read and researched, (mostly involving reading federal government documents of committee meetings and a few mentions in books printed around that time) it begins to seem like fiberglass manufacturers benefited from regulations and building codes while cellulose manufacturers got nailed with regulatory burdens. It isn't totally clear to me that the claims of cellulose insulation fires were ever above ordinary as compared to fires beginning in the walls or attic of an uninsulated wood frame house or as compared to fires in a fiberglass insulated house. Recent studies even suggest that cellulose helps protect a home from fires while fiber glass allows increased oxygen to fires making them worse. I guess my main question is whether small time cellulose manufacturers were particularly crummy in their quality standards back then or if the whole thing was a Public Relations nightmare spurred by fiberglass interests trying to shut down the competition.-- Bwildleaf 00:35, 7 March 2007 (UTC)
The organization of this article is kind of a mess. I tried to improve it by collecting the introductory discussion of types (bulk vs. radiant) into one section and then having discussion of particular types later on. But the organization of the radiant barrier discussion is still poor--I think more of the information should be in the dedicated section later, and the first section should only address issues related to choosing between radiant barriers and regular insulation (or combinations).
The other sections are organized poorly too. There's a section on rigid panels, and then a subsequent section on one particular type of rigid panel. I think it would help to pick a scheme and stick with it, with more sub-sections.
I can see two schemes: One has, for bulk insulation, main categories of loose-fill, batts, rigid panels (with structural panels as a sub-section), spray-on. Another has main categories fiber insulation (e.g. fiberglass), foam insulation, cellulose, etc. That would fit the title of the article better.
I could even see having a main section on materials (foam, fiberglass, cellulose, etc.), and then another main section on form (batts, boards, etc.)
I'm interested in others' opinions. Ccrrccrr ( talk) 14:05, 15 December 2007 (UTC)
Further thoughts on organization. The reasoning behind the current order of materials isn't clear. I think we should either go for alphabetical or by type (batts, loose-fill, etc.). Thoughts? -- Alphastream ( talk) 20:28, 18 April 2008 (UTC)
I like Ccrrccrr's idea of having a section on materials, and another on form. That would also be flexible to accommodate the tendency to "outsource" sections, as has already happened with the Rigid panel article - these could elegantly be referenced from both sections. Sebastian ( talk) 03:26, 14 November 2008 (UTC)
According to Wikipedia:Naming conventions#Prefer singular nouns, the name should be "building insulation material". I wouldn't be nitpicking about it, but I just realized that when I added a link today, it was red; and it's much easier to just add a letter to a link than take it away. I was going to move the page name, but I wanted to check here first if anyone is feel strongly about the name. Sebastian ( talk) 03:14, 14 November 2008 (UTC)
I renamed this section, which allowed me to remove Template:Globalize ( | talk | history | links | watch | logs). The real issue here is not that this is US specific (although it wouldn't hurt to look a bit over the fence). The problem I see is that these are quite strong claims which have not been backed up by any references. (This section has been inserted 13 months ago as part of this major edit.) Does anybody know more about this? — Sebastian 22:38, 10 December 2008 (UTC)
i have a hole in my wall next to my bed and theres some insulation material in there. the surface of it looks like flour but its flaky and dry. It is in "cells" of sorts of perhaps 2cm/4cm in size. They arent all that size, it looks like the material naturally assumes this form. They all vary in size.
Hey, I'm definitly no wikipedia-pro, but I think this article should be more linked against other languages. you can find a german article for the same topic under this URI for example: http://de.wikipedia.org/wiki/D%C3%A4mmstoff thanx for your reading-time, if I did understand something wrong, just delete my post, never mind -- 87.157.101.28 ( talk) 22:27, 19 December 2009 (UTC)
Perhaps the combination straw-hemp can be mentioned too, such as done in BaleHaus@Bath (see http://www.bath.ac.uk/features/balehaus/ ) 91.182.192.87 ( talk) 13:00, 1 June 2010 (UTC)
A straw bale does not having better value than wood per inch. No way. If wood was really that bad then studs would be a HUGE weakpoint in every house and act as a 360 degree heatsink; there is just no way.I'm calling bullshit on that one. Daniel Christensen ( talk) 05:05, 27 November 2010 (UTC)
Unless somehow that only applies to sheathing oriented wood because the heat will not travel linearly through studs but rather will try to go out the sides of the studs hence running into the insulation. According to this every stud would thus an R value of LESS THAN 4 between insulation of R-19 or better. There is no way. Daniel Christensen ( talk) 05:08, 27 November 2010 (UTC)
I removed this link because it was in a random spot. Noting it here in case someone wants to rescue it and place it properly. I didn't check it out. Inside open and closed cell spray foam insulation Ccrrccrr ( talk) 20:28, 27 May 2011 (UTC)
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