Good luck. I got a quote for 2" closed cell *roof and walls) from the folks that did my house and it was $12,000.
Check with your building manufacturer… many of the tube style are designed zero additional load bearing. I’ve heard horror stories from sprayer of a tube style building collapsing while being sprayed
This is most steel buildings.... Including red iron butler/morton style buildings. It's why they fall down every time it snows. The margins on them are shit, and people shop by price. So if you didn't tell them you wanted 10psf for mechanical and electrical and 5psf for insulation, you didn't get it.
Gotta support the foam and the gully washer rainstorm at the same time, while the wind is blowing. You're usually designing for snow and wind around here (instead of seismic). Rain doesn't add much load unless it's ponding.
www.kingspan.com
Let us know what you find. I quoted livegreen
My neighbor at our shop built a 48x60 red iron commercial grade building. Not a backyard shop, he’s probably got 200k in the building.
R value is R value. It's agnostic what the insulating material is. Steel building has super low permeance and air infiltration, so closed cell poly isn't bringing anything to the table there. It is, however, expensive per R, super combustible, and requires a decent installer to make sure the mix stays right, it adheres like it should, and to make sure the intumescent is properly applied. Just saying ... There are lots of options out there, each has pros and cons, and I'd be careful about just jumping on the closed cell bandwagon.
Because I could just have someone spray it up there without having to stud it out. Also because of how poorly trimmed out my building was, it wasn’t built very tight, and the spray foam solved that. My regular shop power bill was about $40-50 pre mini split and spray foam, and the July power bill this year with the mini split keeping it at 72 degrees was only $60. There’s an immeasurable value to it also, because those who have spray foamed structures are willing to pay for more of them because of how well it works in actual practice, regardless of the list of cons.
Not unique to closed cell poly.
Ok, what else is like that with similar overall effectiveness? And why do you act like you hate spray foam?
Maybe he got some in his hootus one time??
I would agree and I’d be very skeptical about using it on wood surfaces for that reason. But a metal building /all metal structure seems ideal application wise - to me.
Through my research spray foam seems to be the best option for a metal building. Granted im not real familiar with the vapor barrier stuff but I know metal buildings are prone to condensation and I’m not sure how you would use any other insulation without completely studding out the walls. I know some use the foam board but it’s not cheap and pretty labor intensive. My idea was to have the building sprayed and then put plywood on the walls and spray the ceiling with the appropriate fire retardant paint.
