Garden storage cupboardy-sheddy-thingy cladding

[MarkDennehy]

Hi guys,
So I have an 8x6 shed that has way too much nonsense stuff in there (lawnmowers? Who needs those?) and it's in the way of proper stuff like oak and walnut and room for moving around the bench. So the plan was to knock up something that's close to the size of those bike storage is-it-a-small-shed-or-a-big-cupboard things. Nice, simple project, two 8x4 OSB sheets, sloping roof, nothing fancy. Because it'll be at the end of the patio, it'll have T&G cladding on three faces, but it'll back onto the wall at the back, so I'm wondering - if I just put roofing felt on the roof and then ran it right down the back over 11mm OSB, will that waterproof it enough to last for five years or so; or am I just setting myself up for a pain in the fundament and should I just put T&G on the back as well and be done with it?

 

[Dan j]

That should be OK.
Only thing to be wary of is that felt softens up a lot when it gets warm. On a vertical surface it may sag and then possibly split. As long as its well fixed this shouldn't be a problem. If its out of direct sunlight it will help.

 

[Myfordman]

I would at least put vertical battens on to stop it flapping in the wind and potentially tearing/sagging etc.

 

[novocaine]

I'd go with a heavy plastic sheet, over the roof and down the back, then felt the roof for the look of it (or shingles). pond liner is cheap.

 

[NickN]

I used EPDM aka rubber roof on my new shed roof, cheap enough to buy, UV resistant (unlike pond liner), easy to fit using water based adhesive, and 25 year guaranteed.
Plenty of sellers online, most do custom sizes and can supply kits of glue+sheet etc.