WBP Plywood

[bandejapaisa]

Is "WBP Plywood" a synonym of "Exterior Plywood"... or can you buy interior WBP and exterior WBP ?

Also is Marine ply worth the extra cost?

I bought some 18mm WBP Wisa Spruce, but it doesn't really look that good quality. It's to lay in the bathroom instead of the floor boards, as I'm going to install underfloor heating.

 

[Deluks]

WBP is fine, lay rough side up if you're tiling it.
You mean electric underfloor heating?

 

[bandejapaisa]

No, wet underfloor heating. Why would this make a difference?

I want engineered wood floor throughout, even in the bathroom.

 

[AronSearle]

WBP plywood has an external bond, or a class 3 gluline.

It is no longer current termonlogy, but still widely used. I think wisa spruce has a class 3 gluline, so is fine for your use. check that it does (it should be stamped if its good ply with the bond class).

Also is Marine ply worth the extra cost?

Why, are you building a boat?

I bought some 18mm WBP Wisa Spruce, but it doesn't really look that good quality.

As Deluks says, should be fine for your use.

 

[bandejapaisa]

Why, are you building a boat?

Ha, no. I thought it was overkill to install Marine ply but I've had advice from various sources about using this and over engineering (i.e. not being cheap with my materials).

It's quite stressful for a DIY'er, as even the pro's all have a different opinion. How am I ever supposed to decide on something.

I'll look into the WISA Spruce I bought and check if it's to that spec.