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The Icynene Insulation System
Couple of thoughts and questions or opinions needed. I have been doing as much research on this as I can (when I feel like it) Opinion: First of all talking to a salesman about the pro's and cons of just about any product
is in my opinion "for what it is worth" information. If the product is the only one he installs or sells more than likely you wont hear any of the bad aspects (atleast nothing he could be sued for if he dont disclose it to you). Anything that is still unfounded or proven one way or the other you wont hear about either. (That is why what Denwood just posted makes me a bit weary about this product) (good post denwood!) Not in all cases but I feel most of the time anyways. Also anyone who dont install or profit off anouther type will more than likely have the opposite opinion of a product and push their product instead. That is where places like this provide a great way to get advice. Problem with folks talking good about their system they had installed is that "SOME" folks are not seeing the forrest trhu the trees to be on the nice side. To be on the not so nice side, some folks are just to damm proud to say they paid too much for a system that really is marginal at best. That brings us to the point where we have to ask as many questions as possible and sift thru the answers to find the middle ground to get as close to the truth as possible. I so far have found (in my opinion) that this product should definatley be a possibility. I feel it may have great benifits in the right situation and applications. I also feel there may be places where it is used that would be a non factor.
Tha being said (with no prior experiance with this product)there are a few questions that I feel I can't get the straight skinny on. Maybe it is because the jury is still out on the possible side effects. The scary thing is that once installed it is for all practical purposes,"PERMINANT" and it can have serious consequences.
I am looking for information on ceiling instalations. Particularily in cathedral applications. From what I gather (if the info I am getting is 100% true) this system could be the best way to insulate a cathedral type construction. The old standard of leaving a 1 1/2 air gap between the roof sheathing and the insulation (if this product does what they say it does) is outdated and void with this application? (yes that was a question) What do you guys (especially the ones who have it already) feel about this. The ones that dont have it installed please way in also. I may soon be building and once it goes in the ceiling it will be perminant without ripping off the entire roof! This scares me! If making a solid insulation with this product will not hurt the integrity of the roof then I feel this is far and away the best way to go with cathedrals which all of us know have typically been the worst for energy efficency. With a system like this that may change. So here are a few questions listed that I have. My fear is not with the initial cost of application but the effects it may have on the life of the structure?
1. What do you feel about having no air gap in a cathedral application on the longevity of your roof?
2. If doing a roof with this product and money is a consideration. Since most homes in my area have 2x6 walls, what would you think about having the roof in cathedrals done and then have this product installed in the walls ONLY around window areas and other utility cavities that take up space in a wall?
(I was thinking this would be a great way to cut the cost and achieve the most from this product barring having the whole house done in it.)
We all know we can get great insulation in a open attick type setting and in 6" walls also. The windows areas have always been a problem even when the best care is took in installing fiberglass.
Does anyone know of any unbiased web sites to go to? I still feel the best information would be from honest home owners. Problem is, how long has this application been in use and what will be the lasting effects of this type of instalation say in 20 years? I am really up in the air here but am leaning strongly towards trying it in my cathedrals and just around the window areas and doors(which will be alot) in the new house.
If Murph or anyone in canada is posting and reading this, what is the thinking up by you guys on this? I know you guys get some real HOT summer time days (more hot than many folks can believe) and we all know about the arctic clippers we get from you air mailed to us. Is this product catching on up by you guys?
Thanks alot guys, I know this was long but IMHO having this installed should ne be a knee jerk reaction, the resulting effects could be a disaster if it does not perform the way it is being marketed as.
I appreciate all your responses!
Thanks Tom
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Huckmeat
2x4 stringers? WOW people actually do that? Sounds like a heck of an idea but not in my plans. I read the same thing as your roofer told you. Seems it is getting more common all the time and is being approved all over also. I was under the impresion that the air gap was more for the condensation than for cooling ventilation? I am pretty sure I am going to go with some form of this application. With your research you done what did you conclude with the difference between the porous and the more solid form? I understand the solid one is supposed to be more expensive but will not let any movement between.
What made you finally decide on the soybean application?
I sure hope it works out for you and please keep us informed on how it performs!
Thanks
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Dont get me wrong, not weary just want to make the right choice. BOTH I am considering all options.
HEY MURPHY acres, that is really a great idea with the computer editorial of the house project. I have a few ?'s
1. I did not know you were building anouther house! Where have I been?
2. Where did all you trees go?  How far is it to town and you just have hell for wind storms there eh? Where is it that your building and why? Is this in Ole Canada still?
PS Nice looking contruction love the heavy timbers for the walls! That is my plan also
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