Ceiling Insulation

[hiflyr]

I have a 40x80 hangar and want to insulate the ceiling. The runers are on 24” centers so I plan to use faced house insulation and need/want to put a support over it like house wrap etc. to help hold it up and to look better. Anyone done this?

 

[autoclassicnut]

Here's a post i made several years ago... https://www.garagejournal.com/forum/threads/insulation-of-arched-steel-building.98287/

 

[strutaeng]

Have you looked to see if you can get that insulation they use on PreEngineered Metal Buildings (PEMB)?

I'm looking at a complex right now that has a few air-conditioned PEMBs from the 70s and that's what they have. It looks like 2-3" fiberglass insulation in a vinyl blanket.

 

[Firebrick43]

WHAT kind of dog is that?

 

[hiflyr]

He is a mixed pound puppy about. 13 years old

 

[hiflyr]

Have you looked to see if you can get that insulation they use on PreEngineered Metal Buildings (PEMB)?

I'm looking at a complex right now that has a few air-conditioned PEMBs from the 70s and that's what they have. It looks like 2-3" fiberglass insulation in a vinyl blanket.

I have thought about that but in my buddies new building the vinyl backing seems pretty thin.

 

[strutaeng]

I have thought about that but in my buddies new building the vinyl backing seems pretty thin.

What about continous insulation (C.I.), attached directly to the underside of those roof purlins? (not cut between them) XPS board, taped with Tyvek tape will act like layer that will effectively stop vapor transmission and minimize thermal bridging. How much R-value are you thinking? XPS is going to be pretty expensive too, depending on what you need/want. 2" XPS x 4x8 looks like is around $40 per sheet locally, which is R10.

Most new of commercial buildings are not using C.I. but it is installed on the outside.

 

[My Old Tools]

Vinyl backed metal building insulation. Think about doubling it on the ceiling. Makes a big difference in heat gain.

 

[hiflyr]

Vinyl backed metal building insulation. Think about doubling it on the ceiling. Makes a big difference in heat gain.

Its going to be either Vinyl Backed or batts and the thickest foil reflective like this I can find.

https://www.amazon.com/dp/B0104WSALY/?tag=atomicindus08-20

 

[vetron]

I wish I could help but i can't even remember the question. Still salivating at the size of that awesome shop