Insulation photos

[David C. Macy]

I am looking for photos of insulation types.

I have Rockwool & Vermiculite.

If any one has any photos of other types of insulation it would be appreciated.

[Linas I. Dapkus]

Urethane Foam

[David C. Macy]

Thanks

How does Polyurethane & Icynene differ.

Anyone have any pictures of other types of insulation?

[Marcel R. Cyr]

Originally Posted by dmacy

Thanks

How does Polyurethane & Icynene differ.

Anyone have any pictures of other types of insulation?

Hi. David;

One is an open cell and one is a closed cell product.

The R- factor of the closed cell will be approx. 6.8 and the open cell could be down to 3.6 per inch of Product.

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

http://www.sprayfoaminsulate.com/

These links might help you a little.

Marcel

[Linas I. Dapkus]

The R- factor of the closed cell will be approx. 6.8 and the open cell could be down to 3.6 per inch of Product.

That's a big difference!!

[Marcel R. Cyr]

Originally Posted by ldapkus

That's a big difference!!

I am sure Linas, that there is a big difference in price also.

Around here, I do not see much Icyenene, and PSF cost $1.00 per board foot.

So in a 5 &1/2" wall it would cost you $3.00 a sq. ft. for 3" of the product for an r-factor of 20.4.

I don't know how much for the other product.

Marcel

[Doug Edwards, CMI]

Here is pink fiberglass, cellulose and white fiberglass. enjoy. The cellulose had just been blown in over some old nasty cellulose.

[David A. Andersen]

How about "missing insulation?

click pic

[Brian A. MacNeish]

Originally Posted by mcyr

I am sure Linas, that there is a big difference in price also.

Around here, I do not see much Icyenene, and SPF cost $1.00 per board foot.

So in a 5 &1/2" wall it would cost you $3.00 a sq. ft. for 3" of the product for an r-factor of 20.4.

I don't know how much for the other product.

Marcel

You better need the specialty product as R20 fiberglass plus sealed air/vapour barrier will cost under $1.00 per sq ft

[Marcel R. Cyr]

Originally Posted by Brian A. MacNeish

You better need the specialty product as R20 fiberglass plus sealed air/vapour barrier will cost under $1.00 per sq ft

Hi. Brian, I think there is a substance to compare performance over price.

Check here; http://building.dow.com/styrofoam/na.../applications/

Marcel

[David C. Macy]

1966 Home.

Is the original insulation rockwool?

[Brian A. MacNeish]

Originally Posted by dmacy

1966 Home.

Is the original insulation rockwool?

Looks like it.

[Brian A. MacNeish]

Originally Posted by mcyr

Hi. Brian, I think there is a substance to compare performance over price.

Check here; http://building.dow.com/styrofoam/na.../applications/

Marcel

Fiberglass BattSTYROFOAM SPF InsulationAllows air to pass easily throughCreates an airtight, moisture-resistant seal Does not expand; allows gaps for air and moisture intrusionExpands to completely seal and insulate cavities, cracks and crevices, when properly applied Can hold and allow moisture entry Repels/deflects waterRated R-value dependent on "perfect" installation; compresses easily, losing insulating valueWill not compress, settle, shrink or sag; delivers a high initial R-value of 6.5† per inch. Does not provide structural reinforcementAdds strength and rigidity to the wall assembly

[Brian A. MacNeish]

Originally Posted by mcyr

Hi. Brian, I think there is a substance to compare performance over price.

Check here; http://building.dow.com/styrofoam/na.../applications/

Marcel

Well, if it's quite a bit cheaper than the SPF price you quoted, I might go for it. I've seen quite a bit of great house performance when I worked with Canada's R2000 home program from 1984-1992 as a site advisor/inspector. (Two of my clients- 1989 & 1993- were named Canada's "R2000 Builder of the Year". These homes used fiberglass in walls and blown cellulose in attics. They had tested air change rates of about 1 ACH at 50 pascals using a blower door)

Here's my opinions of the smoke and mirrors in the foam advertising:

Fiberglass Batt / STYROFOAM SPF Insulation

Allows air to pass easily through / Creates an airtight, moisture-resistant seal
Yes, if you don't have an air barrier but with a decent air barrier, it's not a problem/ But does the foam seal at the inside/outside corner studs, doubled top plates, bottom plate-floor joint?.....No, they have to be caulked by hand.


Does not expand; allows gaps for air and moisture intrusion / Expands to completely seal and insulate cavities, cracks and crevices, when properly applied
So with a proper air/vapour barrier, sheathing, sheathing membrane, siding/flashing, you know, the regular stuff, where's this air and moisture intrusion coming from?

Can hold and allow moisture entry / Repels-deflects water
See above/ If water gets in through leakage and wets the framing around the foam on a regular basis, it will not dry out and begin to rot also......similar to fiberglass

Rated R-value dependent on "perfect" installation; compresses easily, losing insulating value / Will not compress, settle, shrink or sag; delivers a high initial R-value of 6.5† per inch.
Not perfect installation but good installation (remember the foam gives performance when properly applied also); as fiberglass gets compressed the R per inch at first actually goes up as the air pockets get smaller. They used to make denser products called Glasclad and Baseclad with 4.4 per inch. / Why don't they just give you the actual long term R value of the foam product? So it takes near 4 inches of this foam to get R20.......at $1.00 per bd ft.......

Does not provide structural reinforcement/Adds strength and rigidity to the wall assembly
If I need to have the insulation provide structural support for my house, I'll hire a better builder!!!!

The foam company has put seeds of doubt in the public's minds using scare tactics not facts like: fiberglass can be installed well, etc, etc, etc.

SMOKE AND MIRRORS.......a lot of it in the energy industry. It's a technical field that many do not specialize in. If I had my choice I'd put the extra $$$ into triple glazed, low E, krypton filled "Heat Mirror" glass for my windows and a good HRV. The windows are the lowest R values in all homes and where the "law of diminishing returns" still works in our favour.