Should I use expansion material?

[catch22]

Im wondering if I should put expansion material around the inside of my pole barn addition,the concrete guy said that I only need to put plastic to protect the wood from rotting faster.But if the concrete moves a bit and there is no expansion material then it would be putting a lot of stress on the structure wouldnt it?
Any advice would really be appreciated!

Thanks Mike

 

[BooUrns!]

Expansion material? Be more specific. EPS insulation? Gasket? XPS Foam? WTF is expansion material?

 

[Kevin54]

Im wondering if I should put expansion material around the inside of my pole barn addition,the concrete guy said that I only need to put plastic to protect the wood from rotting faster.But if the concrete moves a bit and there is no expansion material then it would be putting a lot of stress on the structure wouldnt it?
Any advice would really be appreciated!

Thanks Mike

I wouldn't all for the fact that it would be a dirt catcher, etc. I have not heard of anyone having problems with their concrete moving unless it is a small slab and they get frost heave. Given the size of a slab in a pole barn, I don't think you would have to worry about that. And if it did, I doubt it would move enough to affect the poles or barn in any way

 

[FunfDreisig]

Im wondering if I should put expansion material around the inside of my pole barn addition,...

First, I've never built a pole barn but...

Concrete changes dimensions when heated/cooled. So I'd put some sort of expansion material between concrete and any rigid part of the structure UNLESS I planned on keeping the slab at a fairly constant temp via heating and/or A/C.

Pardon the stupid question but is your concrete guy planning to use the pole barn structure itself as the forms, with just plastic between the concrete and the poles, walls etc.? if so I'd just line the walls etc with 1 by rough cedar. The cedar itself is a type of expansion joint and you could always remove it later if you wanted something more "squishy"

Funf Dreisig

 

[catch22]

Thanks for the replys everyone.