OSB 2 or 3??

[Screech20]

Hey guys,

I've just done some phoning around to order the OSB for my timber frame garage.

One supplier has just said he's only got the OSB2 but it's the same thing - which i know its not - unless its just a sales thing!

As i understand it, OSB2 is for dry conditions, where 3 in humid...

It's going to be the boarding over the timber studs, them membraned, then battened and cladded....

I've been speccing it to use OSB3, but could it be classed as being in dry as its protected with the membrane and cladding?


cheers.[/b]

 

[AronSearle]

Suppliers do talk some $%£$

OSB2 is for dry conditions, you do need OSB3 as some wetting during construction is a certainty, and for future proofing should a leak occur.

Panel guide is always good for ammo.

http://www.wpif.org.uk/PanelGuide.asp

Annex 2B

 

[Ric2013]

Suppliers do talk some $%£$

Agreed. If OSB2 were the same thing, why the need for two names?