Osb walled garage extension

[andywatch]

Looking for some thoughts on what coating to waterproof the osb with.
Thanks in advance for any suggestions

 

[cheb]

Hello and welcome.

I'd suggest profiled metal sheeting.

 

[Martin Hocking]

We have a few horse field shelters at work that we boarded with osb and just creosoted.

They are weathering very well but look a bit gash. What Cheb says is better if you can afford it.

 

[gaz1]

osb fitted with breathable slate felt roll or better

then latted and then your outer cover fitted over it

 

[Seadog]

Make sure that it's OSB3.

 

[andywatch]

Thank you for the replies, profile sheet is nice but maybe a bit to ships container looking. A cladding of some sorts is the way to go with a breathable wrap I suppose, but any cladding is silly expensive.
A while back I read somewhere that they painted the osb with spandex masonry paint, a couple of coats with the granulated stuff, takes away the horrid texture on the boards.
I thought someone may have tried this .

 

[andywatch]

Sandtex* predictive text, don't you just love it...lol

 

[gaz1]

the metal was to show you could use it that way heres some more ways you can do its all the same way

Insulating a shed/garden room etc.

I am getting varied answers on this so I thought I'd ask the learned membership on here! I am building a timber framed building (not for me I'm afraid) which the walls are made of 95mm frame. Starting from inside out, theres a 12mm ply lining, vapour barrier, 70mm celotex, 18mm OSB, membane...

www.mig-welding.co.uk

 

[Onoff]

I painted OSB3 with Screwfix No Nonsense Wood Treatment (Dark Brown). Pretty sure it weakened, softened or whatever the resins holding it together. The board swelled and needs scrapping now.