Reinforced vapor barrier in floor

[Krille84]

Hello! I'm building a storage shed that stands on a wooden joist frame. I've placed the bottom board underneath and will be adding insulation tomorrow. What I'm wondering about is the plastic I should lay on top of the insulation before screwing down the particle board, which will be the top layer.

I have a lot of reinforced condensation plastic left over that was meant for the roof base, so I naturally want it to be used. Does it work to use it for the floor instead of construction plastic?

 

[Jonatan79]

In a wooden beam structure, non-plastic materials are used.

 

[August Eriksson]

In a wooden beam construction, plastic is not used.

https://www.rockwool.com/se/produkt...solering/krypgrund/krypgrundsbjalklag-av-tra/

 

[Jonatan79]

[link]

Note! In unheated or occasionally heated spaces, e.g., summer cottages, the vapor barrier is replaced with a windproof layer facing the room