I am about to insulate my house under construction. Just read a thread about icynene, and it kinda trailed off into La-La Land. Didn’t get my questions answered.
My sub mentioned it last week, and then I read the thread about thermal bridging, and it piqued my curiosity.
What is icynene? How expensive is it? How does it compare with wet blown cels? I’ve heard about it, but never paid attention, so I enter this point in construction rather ill informed.
Don
Replies
Good stuff
Ask here: http://www.icynene.com/
Phill Giles
The Unionville Woodwright
Unionville, Ontario
Icynene costs more per square foot than othe alternatives. But it is great for air sealing and insulating in one step. So time is saved in putting up a vapor barrier, taping, etc. compared to conventional insulation. This is especially good if you have a complicated roof line short time frame, llmited labor who will take the time to seal your house right, etc.
We put Icynene in our new addition last summer. Cathedral roof, walls, basement walls, garage ceiling. At least the new part of the house will be energy efficient!
P.S. I don' sell the stuff, just believe in energy efficiency.
Boy, I'm glad the cat wasn't standing still!
DonDon Reinhard - The GlassMasterworks - If it scratches, I etch it!
Also take a look at Corbond. About R-7 per inch of application. Same application process. I wish I could find someone that handles in around Atlanta, GA.
Where are you in Etlanner? I live up in Dawson Cty on the Cherokee Cty line on the way to Big Canoe.
DonDon Reinhard - The GlassMasterworks - If it scratches, I etch it!
Off of the last Exit of I-85N before leaving Gwinnet County. Hamilton area. Aka the Golden Triangle (soon to become the Religous Triange due to all the friggen churches opening up).
Dear Don,
Both processes offer premium results. The R-value per inch is similar, but the cost of icy is double or better. Neither imposes a diffusion barrier to moisture and that's good.
Also, you'll rarely get a full bay of foam. It's too much trouble and wasteful to saw the set foam back flush with the studs. So with 2x6 walls, count on a simple R-15 with icy and R-20 with cels.
More important that the insulation resistance, cels will block fire, rodents, and bugs. Icy burns nicely, mice tunnel happily through it.
Regards, Fred
[email protected]
Don,
Contrary to "expert" information you are receiving, at this point in time, foam is the most efficient insulation on the market. It will perform as claimed.
It does not have the nasty side effects of producing tunnel vision that prolonged use of cels has and will not destroy your brain cels.:)
You can expect not only a much higher R factor in your wall assembly than you could ever hope for in cels but will seal perfectly as well.
Yes it's more expensive in the initial but will pay for itself in the longer term.
Gabe
We love the polyurethane in our home. It cost about $.50 per bd. ft. and is R7.2 per inch. Well worth it as we heat about 4500sq. ft. for around $80 month in a northern USA climate. Like Gabe says nothing will seal like polyurethane. And it adds strength to the structure. A 2x4 wall with pur between the studs had the same racking strength as a 2x4 wall with 1/2" osb.