Spray foam touch up..

[shenanigans]

One of the growers in my area moved this 24'wide x20' high overhead door. They needed the fiberglass covered with an additional 2" of 2# density closed cell polyurethane foam. I came in on Sunday, so the guys working in the shop wouldn't be exposed to the vapors while I applied the foam. Now, tomorrow, they can get the white steel installed over the girts, and their shop will stay a ton warmer this winter. (Cooler in the summer too)

 

[NicPaus]

Do you Guy's use this type of insulation in new construction as opposed to Insulation batts like we use in Socal? I heard spraying is much more efficient but have not seen it done locally.

 

[shenanigans]

Do you Guy's use this type of insulation in new construction as opposed to Insulation batts like we use in Socal? I heard spraying is much more efficient but have not seen it done locally.

In residential construction here in Wisconsin, it makes sense to apply 1 inch of closed cell in a 2x6 stud cavity, then back it up with a r 19 fiberglass batt then at least a 4mil vapor barrier. Closed cell foam runs around $ 1 per board foot installed. Payback on energy savings is approximately 5-7 years dependant on style and construction methods used. So, to answer your question, it's in addition to fiberglass. If you can stop the wind from blowing through your stud cavities, fiberglass performs quite well with the foam added to the assembly.

 

[shenanigans]

In the area I live, central Wisconsin, there is a significant amount of land used for growing potatoes, carrots, sweet corn, snap beans and peas. The potato storages are constantly being upgraded and replaced. I've found a niche in applying foam and polyurea coating to the inside and outside of the storage bins.

 

[shenanigans]

This is a smaller sized storage bin. I applied 4 inches to the north wall. The grower using this facility was having issues with frost loss against the north wall.

 

[shenanigans]

This is a smaller sized storage bin. I applied 4 inches to the north wall. The grower using this facility was having issues with frost loss against the north wall.

They fill these buildings with potatoes to that spray painted line. Its 20' from thr floor. This bin is 48' wide and 96' deep or long. The culverts are buried in the pile and are used to circulate very humid air through the pile to prevent spoilage.

 

[shenanigans]

Here's a decent picture of a customers workshop that I completed last year. It was a wooden pole shed type of building. I added the horizontal "purlins" between the 6x6 posts. Applied 1 inch of foam, backed it up with 6" of fiberglass. Vapor barrier, then hung osb on the walls finished with paint. His building was completely open when I began the project. Here's the result.