Quote:
Originally Posted by BSexton
I just got a chuckle out of the "spray foam, less messy."  Let me explain!
I used the spray foam to seal up the ends of my ducts after the last vent. I sprayed the foam in and let it sit for a few minutes. It didn't expand as much as a I though. "I'd better add a little more to that so that it does expand all the way to the last vent", I thought.
When I came back a few hours later to finish off the job, it had turned in to a monster. Three of the four vents were mostly sealed off because of my "add a little more"! We are talking like 3/4 full of spray foam! 
I cut off the excess and took a rasp to make the foam smooth. I even trimmed down the edge closest to the AC to make the air flow smoother. Then I looked down--there were little foam balls EVERYWHERE. I cleaned and vacuumed and swept for what seems like hours trying to get all of the foam balls.
That was over a year and a half ago. Every time I get the rig ready for travel, I seem to find at least one foam ball! 
So, if you do use the foam, learn from my mistake and be a little judicious when applying it! |
That's really good advise BSexton, I did a test with spray foam and it did not expand like I thought it would. What brand did you use?
Jeff
Thor Forums
