parentg6

Hi everybody,

I'm just a little bit concerned about Michael's comments. The problem with wet cellulose isulation as described is not the use of cellulose itself, it' s just because the air and water thightness of the house was poor. People should simply not buy homes from those contractors. In Canada, it's supposed to be prohibited or totally not recommended to have plombing in exterior insulated walls so the flood problem should not be an issue and cellulose insulation is a recommended technique.

I'm a bit more concerned about the utilization of non-renouvelable-petrolium-based (isocyanates) spray foams, particilarly soja based spray foam because some food is used to feed house walls or roofs instead of feeding humans or animals. Corn grown in north america to feed cars with ethanol is another example of problems rising from what we call the ¨green economy¨.

Finally, based on Rob Yagid's article (Fine homebuilding, july 2009, No. 204, pp. 32-37) applying more than 4-6 inches of spray foam is a total waste of money (based on building science research).

I know you'll disagree with me but I can't let pass this one. Sorry everybody.