Foam food for thought

[2kool4skool]

Spray Foam Insulation: Hidden Dangers & Health Risks spark Lawsuits

And the other side:

http://www.advancedinsulationla.com/...-benefits.html

http://sprayfoam.com/spray-foam-educ...wners-guide/25

[crazycal]

Wow, that's a bummer.

[EastCoastCB]

I've seen similar stuff about the foam before.

https://www.youtube.com/watch?v=0Hh5MYv7lWc

[charles_m]

A lot of the negatives are from bad installation and improper curing time before occupancy. I'm still sold on it

[Hank's P-O-S]

I've had between 4-6 inches of foam in my house for the last 8 years supposedly giving me r51. We have never had problems with it.
When it was installed we were living in the house, however a portion that was somewhat sealed off. We have only had problems where traditional fiberglass and plastic were used. Actually the worst problems are where we transitioned from foam to fiberglass.

[EastCoastCB]

I'm only slightly concerned.

[crazycal]

Stupid is as stupid does. Who would stay in the house at the foam is being applied? Are the installers wearing masks? I think one of the complaints about Great Stuff spray foam. It doesn't cure fully.

https://www.youtube.com/watch?v=0Hh5MYv7lWc

[ii_amnt]

Isn't polyurethane foam outdated? As in, not even available for use in homes anymore because everyone knows it's bad stuff?

[Hank's P-O-S]

Figured this might be reverent.
The canadian spray foam tech specs.

Technical Documents | CUFCA

[ii_amnt]

I am no expert on this stuff, but here is some brief things I found on a quick google search.

https://en.wikipedia.org/wiki/Insula...ation_material)

Here are the one's wiki lists, and are likely most common (in order of descending R value)

Polyisocyanurate spray foam
"...relatively strong molecular structure, because of the combination of strong chemical bonds, the ring structure of isocyanurate and high cross link density, each contributing to the greater stiffness than found in comparable polyurethanes. The greater bond strength also means these are more difficult to break, and as a result a PIR foam is chemically and thermally more stable: breakdown of isocyanurate bonds is reported to start above 200°C, compared with urethane at 100 to 110°C."
So, perhaps a bit better than straight polyurethane...

Closed-cell polyurethane spray foam

Phenolic spray foam
Seems this one is faily unstable, it will shrinks and can deteriorates in moisture or sunlight

Icynene spray from allinoneinsulation.com
"Icynene (LD-C-50™)1 is a low-density, open-cell, water blown, polyurethane foam insulation that is made from petroleum-based plastics. Icynene LD-C-50 is a two-part, spray-applied product consisting of polymeric isocyanate (Component-A Base Seal®) and a proprietary resin (Component-B, LD-C-50 Resin or Gold Seal®)2."

Open-cell polyurethane spray foam

[Puggy]

Well, one is a law office's "fear, uncertainty, and death" message about foam, and the other is industry saying, "No worries!"

They both have at their core the desire to make money off you.