Sheet material that withstands some water

[Nygge72]

Hi, I am going to build a small pump house that needs to be insulated. What type of board material can I use that can withstand being outside/getting water on it without getting damaged? Is OSB treated with something so it can withstand water, or is there another type of board I should use?

Outside the board, there will be regular wood paneling, and on the inside, polystyrene as insulation.

 

[KnockOnWood]

Maybe Minerit.

It is moisture resistant: http://www.beijerbygg.se/store/priv...olika-typer-av-fibercementskivor#.VMercS6BYug

 

[Nerre]

Does it make sense to nail paneling onto minerit?

On the outside of the board, there will be regular wooden paneling, and on the inside, cell plast as insulation.

I think it sounds more like a job for formplyfa.

 

[jtl]

Hello, I am going to build a small pump house that needs to be insulated. What type of board material can I use that can withstand being outside/getting water on it without being destroyed? Is OSB treated with something so it can withstand water or is it another type of board one should use?

On the outside of the board, there will be regular wood paneling, and on the inside, foam as insulation.

What function should the board serve? To me, it sounds like a classic construction in miniature, and I would have chosen asfaboard.

 

[JOW]

Why should you have a board?

Now I don't know how small you're going to build, but...

Studs in the corners, cellplast between the studs, cross on the inside.
Nail rule on the outside.
Put up the panel.

Put on a shed roof.