Spray foam insulation?

[123RedBeard]

I don't "think" it would be cost effective to do a small building with spray foam from a commercial company, yeah I know you said your dad was gonna try to DIY ... my suggestion if I was gonna do it would be do a combination of blue/pink foam board, and gap filler expanding foam to seal in the cracks, and small place you can't get into with the foam board ... if was to insulate a chicken coop ... and I don't see a need, lived in Vermont for 40 years too ...

Here it is $1,000 for 1" of insulation ... how thick do you want? (USA dollars, delivered in USA) https://sprayfoamkit.com/mobile/best-value-spray-foam-insulation/

A "board foot" is 12"X12"X1"

If you only filled those 2X4's up with 2"-3" of foam, were "careful" and didn't get any on the inside where your panels will hook onto, no triming needed ...

 

[aart]

gets a lot of wind against it and going through it when it’s blowing right.

Might need to adjust your venting then, having closable vents or baffling can work.

From what I looked into the spray, it’s 800$ (CAD) for 600 board feet at a few inches thick I believe? I

Not sure about that. You'd have to look up how board feet is calculated.

Talked to my girl about pricing. She did not compare foam sheets to spray-in.
She did say the DIY spraying takes some real skill, her friends did it and recommended against it so she hired the pros. There was a minimum for the pros, which she barely met.

 

[Folly's place]

Any insulation needs to be covered very securely, so the chickens can't eat it, and so that rodents can't colonize it. Rodents will chew through OSB easily, for example, and moved into the insulated walls of my coop a few years ago. We had to tear it all out and set bait stations to eliminate them.
I'd consider insulating the ceiling and maybe not the walls.
Mary

 

[Eggs2chicks]

I am about ready to do mine and am going to use the boards and cover the wall with shower sheets to keep them from eating it. So maybe putting wall up first and spraying foam into it would be easier than having to spray and shave and cover. ???? Please let us know how it works and the process.

 

[Eggs2chicks]

Any insulation needs to be covered very securely, so the chickens can't eat it, and so that rodents can't colonize it. Rodents will chew through OSB easily, for example, and moved into the insulated walls of my coop a few years ago. We had to tear it all out and set bait stations to eliminate them.
I'd consider insulating the ceiling and maybe not the walls.
Mary

I can’t agree more. I don’t want rodents or colonies of mites and lice

 

[sorce]

I feel like it's uneccesary, let alone all the negatives mentioned can happen.

With proper ventilation, it's not really going to do anything anyway.

I was one of the first people on Earth to use the cans of spray foam. Sucks ass.

Best to enclose the area then spray thru a hole with a long wand than spray shave and cover.

It expands and causes quite the exothermic reaction. Hot AF.

Sorce

 

[ChickenTenderKesha]

This is why I wanted to post about it before I even bought anything. I had my thoughts on this BUT I haven’t had to build a coop before. Thank you all for your comments!! I’m starting to see it’ll probably be more work just to insulate and it might not even be needed in the long run..

I don't "think" it would be cost effective to do a small building with spray foam from a commercial company, yeah I know you said your dad was gonna try to DIY ... my suggestion if I was gonna do it would be do a combination of blue/pink foam board, and gap filler expanding foam to seal in the cracks, and small place you can't get into with the foam board ... if was to insulate a chicken coop ... and I don't see a need, lived in Vermont for 40 years too ...

Here it is $1,000 for 1" of insulation ... how thick do you want? (USA dollars, delivered in USA) https://sprayfoamkit.com/mobile/best-value-spray-foam-insulation/

A "board foot" is 12"X12"X1"

If you only filled those 2X4's up with 2"-3" of foam, were "careful" and didn't get any on the inside where your panels will hook onto, no triming needed ...

Might need to adjust your venting then, having closable vents or baffling can work.Its not easy to show with those photos provided but come winter the vents will have covers from the inside I can close if needed.

Not sure about that. You'd have to look up how board feet is calculated.

Talked to my girl about pricing. She did not compare foam sheets to spray-in.
She did say the DIY spraying takes some real skill, her friends did it and recommended against it so she hired the pros. There was a minimum for the pros, which she barely met.

I do like the suggested ideas in these next quotes. IF I was to insulate, it seems that spraying into the gaps after the interior walls are up is the better idea.

Mary you said just insulating the roof would be better, it’s currently got old insulation up there we will be leaving until next spring. It’s the fluffy pink insulation you normally see in walls but it’s no longer quite as fluffy from what I’ve seen fall out. I’m unsure how full it is in there and I’m sure there’s been lots of moisture caught in there over the years it’s had half a roof..

I'd consider insulating the ceiling and maybe not the walls.
Mary

So maybe putting wall up first and spraying foam into it would be easier than having to spray and shave and cover. ???

I feel like it's uneccesary, let alone all the negatives mentioned can happen.

With proper ventilation, it's not really going to do anything anyway.

I was one of the first people on Earth to use the cans of spray foam. Sucks ass.

Best to enclose the area then spray thru a hole with a long wand than spray shave and cover.

It expands and causes quite the exothermic reaction. Hot AF.

Sorce

 

[Folly's place]

My older coop section still has insulation in the roof (fiberglass batts) covered in plywood. No rodents have invaded that space, and it does help a bit out there. Actually, more in the summer to keep the coop cooler, even though it's also shaded by trees.
Mary

 

[Folly's place]

Ventilation is most important!!!

 

[ChickenTenderKesha]

My older coop section still has insulation in the roof (fiberglass batts) covered in plywood. Nor rodents have invaded that space, and it does help a bit out there. Actually, more in the summer to keep the coop cooler, even though it's also shaded by trees.
Mary

So I can hope the ceiling insulation will help in the summer then?

Ventilation is most important!!!

I’ve been prioritizing ventilation and proper drafts over a lot of other things. It’s very well ventilated and the chooks haven’t had any drafts rustling their feathers when roosting at night (which will be backed up even more with the inner walls in place)