Icynene® Spray Foam Insulation & Air Barrier System

[Rossome]

What's your fellas opinion on this stuff? Thinking of insulating my floor joists and double walls with this.

http://www.icynene.com/

[avare]

I could not find any acoustic data on the website. How doe the price compare with mineral wool?

Andre

[humanrecordz]

Here's a link to the architects binder page:

http://www.icynene.com/ArchitectResource.aspx

I would imagine the cost to be much more than traditional insulation methods.
But good luck!

Blue

[avare]

Originally Posted by humanrecordz

Here's a link to the architects binder page:

Thanks!

Looking at the test data available, it looks like it performs as other insulations inside walls. It is impossible to say how effective it is at absorption, as the thickness tested is not specified in that section. Of some concern for absorption uses is that appears to be some form of closed cell, which is bad for absorption. This is based upon this from pdf page 12 of summary test data pdf:

The Icynene Insulation System® has an added advantage over other similarly rated materials, in that it air seals the structure when it is applied

I hope this helps

Andre

[Eric Desart]

Andre,

This is clearly not a fibrous or open cell product.
Therefore not suited for normal acoustical purposes: it expands also upto 60 times (a bit comparable with polyurethane foam)

Wet sprayed blown high efficiency Polyicynene Polyurethane foam insulation

[Eric Desart]

I think I possibly must withdraw that previous message:

http://www.icynene.com/assets/Archit...20Formula).pdf

2.2 MATERIALS

A. Polyicynene Spray Insulation: Icynene;
hydrophobic, low-density, open-cell
modified polyicynene; conforming to the following: ......

Hence I don't know .....

[avare]

Originally Posted by Eric Desart

Andre,

This is clearly not a fibrous or open cell product.
Therefore not suited for normal acoustical purposes: it expands also upto 60 times (a bit comparable with polyurethane foam)

Wet sprayed blown high efficiency Polyicynene Polyurethane foam insulation

Thanks Eric.

Andre

[avare]

Eric:

I am as guilty of this as you are. the original post was about in wall applications. Having written that, I wonder after reading your last post if the material is not a self skinning open cell foam.

Andre

[Eric Desart]

Andre,

To be honest, I'm not sure how to interpret this data (in function of acoustics) I found yet. Open cell also doesn't mean souple. Maybe it's self-skinning as you suggest.

For me it goes to the unsolved questions drawer for now ......

My belly tells it's no good acoustic material, but I've no idea where my belly gets the arguments to feel that way. Hence I shut him up for the time being.

[avare]

BOB TO THE RESCUE!

I forgot. If there is absorption data on the web, and I can't find it with days of searching, look on Bob's Excellent Absorption Data page! About three quarters down the page. The material is 0.5 lb /ft^3 density. The test data is for 4" thickness, and that provided the NRC of 0.7.

As your belly suspected Eric, not suitable for absorption.

Than you Bob!

Awed,
Andre

[HypocritePro.]

Just to chime in here, we have in fact been using the Icynene insulation on our new 11,000 sq/ft facility up here in Edmonton, Alberta. We have yet to rely on it within the actual sound spaces but have been using it for insulation between our commercial floors and up in our attic spaces (20+ inches sprayed to date throughout the attic spaces and mechanical chases), we have yet to conduct any conclusive acoustic benefits, but from mere first impressions the product is absolutely astounding. What led us to this product was the need for energy efficiency up here in our temperate climate as well as its lessened environmental impact compared to that of other polyurethane foam products. On paper it specs close to that of typical fiberglass insulation but the varying factor between these two products is the means of instillation. Our only concern to using the product in the double wall design is the potential for installation troubles, as it is difficult to fill the voids and verify its instillation. As well, it may limit any future possibility of lines pulled through the spaces and we have no real desire to overcome this challenge by placing hollow conduit within our walls.

As a fare warning seal all duct units in mechanical spaces appropriately, and not just with silver tape, as this product gets around every crack and crevasse very effectively & may try to seal you ducts entirely. No problems on this end to date, but we sealed and pre-wrapped all our mechanical before hand.

[Rossome]

so I should probably go with rockwool for insulating between the floor joists? was thinking this stuff might be better because it doesn't allow for air leakage. Deffinatly going to use rockwool for the walls

[avare]

Originally Posted by Rossome

so I should probably go with rockwool for insulating between the floor joists? was thinking this stuff might be better because it doesn't allow for air leakage. Deffinatly going to use rockwool for the walls

If can not move through material, neither can sound and be absorbed.

Andre

[Rossome]

I have no idea what you just said lol

[avare]

Originally Posted by Rossome

I have no idea what you just said lol

If an insulation is sealed so that air can not move through it, it will not be an effective sound absorber. Rockwol is good.

Andre

[blackmajik2021]

I'm bumping this topic because I saw this video where some guy says spray foam insulation is really great. I'm building a studio in a relatives garage and he insists on using the spray foam because the beams are not evenly spaced.

How to Insulate a Recording Studio | eHow.com

(he says it towards the end of the video)

also, there are plenty of guides like this

http://www.ehow.com/how_4666822_use-...oam-spray.html

[SAC]

It is great!

...For sealing air leaks, reducing diaphragmatic surface resonance, and for thermal insulation!

Highly recommended.

For acoustical purposes...Its great! Just not for absorptive purposes -

But hey, you won't have any flanking paths due to air leaks!