Insulation/Spray Foam

[Motofish43]

I can't answer to the VOC aspect. I can tell you a good 2" of closed cell will make a big difference in sound and temps. It solidified my 40x60x16. Herr in zone 5B I heat the entire shop with a single residential wood stove and cool with a evaporative cooler. Prices have come down in my area significantly as there are now multiple companies offering spray foam. While it's still not the most affordable way I believe you get what you pay for with spray foam. Batt/blow in insulation doesn't seal and add to structure like closed cell.

 

[Whaledriver]

I spray framed my shop seven years ago. Just did the gables and under the roof. Did 2" of closed cell. Walls are r19 batts. Shop rarely goes below 40 degrees. I have a ng heater that will bring it up to 60 in a couple hours. Never noticed any off gas. Also a quick note on insulation. There is a point of diminished returns. Meaning r38 is not 100% better than r19. Something to keep in mind, especially for a shop that is not heated everyday.

 

[Jon Boy]

What are you guys getting quoted for pricing on this? For. A 2500 sq ft house near bzn you’re looking at $30-40k for walls and lid sprayed

 

[BigDog00]

How does mineral wool/rock wool fit into this conversation? I've heard it doesn't breakdown like traditional fiberglass can and is still a cheaper option than spray foam.

 

[CMF]

What are you guys getting quoted for pricing on this? For. A 2500 sq ft house near bzn you’re looking at $30-40k for walls and lid sprayed

9k in MS, I posted quote earlier. 1850 living, ~2300 under roof. that included spraying floor too.

 

[Motofish43]

What are you guys getting quoted for pricing on this? For. A 2500 sq ft house near bzn you’re looking at $30-40k for walls and lid sprayed

40x60x16 walls and roof $5200. Colorado. That was during the pandemic too. I'm told prices are more competitive now from guys that are building these pole barns.

 

[weekender7]

I work in the water industry and that picture makes my ass pucker. I sincerely hope it holds up man but good lord ive seen so many issues before that I could never bring myself to do it no matter how nice it would be.

There are only two elements that can't be replaced. The pex tubing and the concrete. What's your beef?

 

[E.Shell]

What are you guys getting quoted for pricing on this? For. A 2500 sq ft house near bzn you’re looking at $30-40k for walls and lid sprayed

Not sure who you're asking, but our contractor quotes the whole job based on what we specify. As our company estimator, I maintain a data base with unit price quotes so I can do quick workups for change orders, etc..

I will typically work up my own insulation price for a job using their unit pricing while I'm waiting for the contractors to quote it. This way, I know what to expect and can spot errors more readily, plus I have a price to keep me covered if they miss the deadline. I do this for many job cost categories.

 

[E.Shell]

There are only two elements that can't be replaced. The pex tubing and the concrete. What's your beef?

Yup, otherwise foolproof.

 

[SloppyJ]

There are only two elements that can't be replaced. The pex tubing and the concrete. What's your beef?

The pex tubing and how it will be bedded in the concrete mainly. Ive seen plenty of pex and poly tubing just straight wear out. This mainly happens on bends or if it's ever been kinked. When it leaks id imagine it would be hard to pinpoint and then you get to chase it through the slab. Thats what would scare me. But nice warm floors would be pretty damn cool too.

 

[Chris in TN]

There are only two elements that can't be replaced. The pex tubing and the concrete. What's your beef?

Last spring we had a piece of pex develop a leak.

It was a 90 degree bend, hot water, placed properly into one of those bend-guide brackets, roughly seven years old.

Fixing the leak was easy. Two hours counting the trip to town to buy the fittings. But cleaning up the mess required popping up several pieces of LVP flooring. I had a handful of flooring pieces in the barn, but guess what? The exact style we had, was discontinued. So I couldn't get enough to redo the entire spot.

We ended up filing an insurance claim and redoing the floor in the entire house. That was several tens of thousands of dollars all told, when done through the insurance company. All of that over a pinhole in the pex hot water pipe.

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Also - doing the math, our barn should have had right at 1990' square feet of insulated area, all done 4" thick with open cell, and here's the invoice from 2023"