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DIY spray foam experience

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Forum topic by squazo posted 05-12-2017 03:28 PM 531 views 0 times favorited 4 replies Add to Favorites Watch
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squazo

51 posts in 1479 days


05-12-2017 03:28 PM

I am ready to spray foam my shop. I was hoping to hear some of your guys experiences with DIY spray foam kits. I want to do it myself because I don’t trust a contractor to do it properly, not because Im trying to save money, although that is nice too.


4 replies so far

View nkawtg's profile

nkawtg

263 posts in 1085 days


#1 posted 05-12-2017 03:43 PM

Are you covering the foam insulation with drywall?
I’m asking because foam insulation is flammable.

http://www.energyvanguard.com/blog/72240/Does-Your-Spray-Foam-Insulation-Need-a-Thermal-or-Ignition-Barrier

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squazo

51 posts in 1479 days


#2 posted 05-12-2017 03:52 PM

I may put up drywall or I may go with the E-84 foam im not sure I am looking into costs and other benefits right now. also It is finally raining really hard and I can leak check my building, hopefully its water tight. I may end up not being ready for foam after all!

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hotbyte

989 posts in 2809 days


#3 posted 05-13-2017 12:32 AM

Here’s a YouTube video on it I recently saw.

View Matt Rogers's profile

Matt Rogers

99 posts in 1803 days


#4 posted 05-13-2017 10:30 AM

I have used two of the propane tank sized kits. There are some slight issues with getting the correct mixture, but not that bad. I used it more for rim joist style stuff, insulating spaces large enough that it would be hard to do it all with cutting small pieces, but not an entire wall and ceiling. It is messy, you have the clean off the studs before drywall, and you still do risk the mixture being off and the product being dry and crumbly. I think that it is very good for hard to reach places or anywhere else that would be difficult to access or cut insulation to fit. It could aslo be good for “flash-and-batt” applications where you need the vapor barrier aspect of the foam but can use batt insulation for the R-value. However, for good vapor sealing you need to really be detailed and get every single nook and cranny.

My personal favorite is Roxul. It is fireproof, moldproof, water-resistant and easy to cut and install. I use a serrated bread knife I stole from the kitchen and it cuts like butter.

-- Matt Rogers, http://www.cleanairwoodworks.com and http://www.cleanairyurts.com

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