Shed roof a bit rotten replace or not?

_Sam_

Hi all, I'm after some advice on the shed roof, it has been leaking and there is what appears to be rot in couple of places. I'm wondering does it need replacing, or is there a chance I can re-felt it the way it is? Below are photos from the inside. 

jimpwarsop

Doesnt look like the felt is in good condition ?

Rip all the felt off, replace any deteriorating timber,  and re-felt.

Bendy_House

Ideally need a photo of the outside, 'cos the rot is surely much greater there?
Anyhoo, assuming it's bone dry, I'd cut away any obviously soft bits, soak it all in everbuild lumberjack wood treatment or similar, and you'd then need to patch any large gaps so the new felt is supported. 
Filling gaps could be as cheap and nasty as using expanding foam; temporarily screw a plate to the underside - a bit of ply - but first add a layer of polythene (bag) to it. Carefully spray the foam from the outside, just enough to expand to fill the holes. Allow to set, trim outside level, remove inside plate.
Or, fill it with sterner stuff...

Rdwill

Mine was a bit like that. I replaced it with a steel roof, which wasn't as expensive as you might think. I collected the materials in an estate car and it took me and my dad about half a day to do.

We cut the rotten bits away before fitting the new roof.

Bendy_House

Nice, Rdwill

_Sam_

Thank you all yes I think the felt is the problem and allowed water to seep through - you are right I need to rip it off and see from the top on how the wood looks. I'm not very good with DIY and replacing the roof timber is intimidating, so I'm hoping for as long as it is structurally sound-ish if I could leave it as it is (clean it well) and felt the roof so that it is kept dry. I read somewhere that once dry, the rot should stop (i.e. it shouldn't spread?)

I'll wait until the weather is back to better then rip the felt and see how the roof looks from the top. 

_Sam_

Rdwill that looks very nice! I will look up metal roofs. So far I've read about EPDM membranes but want to avoid spending too much money, as we may decide to move the shed from where it is now (or perhaps replace it if we end up having to move it) - it's a new house we just bought so everything is in the planning stage, for now we just need a dry place to store garden stuff.

Eldi_Dos

@Rdwill like the roof on the shed gives it a nice finish. Looking at the photo reminded  how vulnerable the electricity supply is in rural settings, that tree behind your neighbours hut looks like it could cause problems to the supply.

Rdwill

@_Sam_
If you are in the South West then I got all of the materials for the roof from this place https://www.unitedroofingproducts.com/ They cut it all to size (my measurements) and it all went in the back of my old Astra Estate, although I did have to tie the boot down.

Fixing them, just lay them out on the lawn, lift them into place and drill in the supplied self drilling screws. We did put two lengths of wood either side inside the shed to drill into, which were secured to the eves.

A tip, make sure there is absolutely no wind, because they do act like sails when you lift them onto the roof.

Hope that helps.

Rdwill

@Eldi_Dos
Its the pine one which is causing the problem and has to come down if anyone has any bright ideas. You can see we have skinned the branches of it as far up as we dare go.

If it falls towards my property (Northish) by 180 degrees it'll take out the electric, going East either gets the Nissan hut or the stable, the other way is that other big tree and the weeping willow.

I think its going to have to fall into the tree behind in the first instance and then get taken down bit by bit from in there.

It will be an interesting day, but its gotta come down at some point soon. Although it did survive the recent winds.

Rdwill

here's a couple more photos for amusement value