Garden shed leaking HELP!

SUPERGIRL2020

Update on my shed! 

We've had some bad storms lately and the inside of my shed is leaking from the rain really bad 

Not sure what to do now 🤷‍♀️

Bendy_House

Two things going on - one is a leaking roof, which will almost certainly require a new covering - felt or similar. The other is the leak coming through the wall near the corner.

For that you really need to look outside in that location to see if there's an obvious cause. For example, is that where the roof run-off ends up - is that corner being constantly soaked?

That's a half-decent shed, but it is just made from one layer of T&G timbers, so if someone were to aim a hose at the side, water will almost certainly get through in places. So it really needs checking on the outside, to see where it's getting through.

If it's something obvious - a gap or crack in a plank - then this can be filled. If it's just 'normal' - ie due to such a large amount of rain so it gets through between the T&Gs - then an overall coating may be required.

If you cannot get access to the outside in that corner, then it's a lot more tricky. Certainly do not paint the inside with Garden Shades or similar.

So, what is access like?

FreeBear

Bendy_House said: Certainly do not paint the inside with Garden Shades or similar.

I use https://www.screwfix.com/p/no-nonsense-wood-treatment-clear-5ltr/36237 (the Dark Oak shade) on my sheds inside & out. Even if the timber does get wet, it dries out pretty quick, and I have yet to see any rot. That said, the sheds are less than 5 years old..

SUPERGIRL2020

Where most of the rain goes is on top of the shed (roof) what about sealing it with water replant seal? 

FreeBear

If the roof is leaking, then the felt needs replacing.

On most sheds, it is just nailed on rather than stuck down. Pull the old felt off, remove the nails, and fix a new layer on.

Bendy_House

SUPERGIRL2020 said:

Where most of the rain goes is on top of the shed (roof) what about sealing it with water replant seal? 

There are some good roof sealing coatings these days, such as Cromapol. However, it'll only be as good as what's under it, and if that is worn, torn and loose felt, then the Croma will fail when the felt under it does.

As FB says, that's a 'leak', and that means there's a hole or tear in your felt roof. You need to have a good look at it - when the storm passes - and find that leak. When you do, post a photo and perhaps we can suggest alternatives to a complete replacement - the felt doesn't actually look too bad in general.

Bendy_House

FreeBear said:

Bendy_House said: Certainly do not paint the inside with Garden Shades or similar.

I use https://www.screwfix.com/p/no-nonsense-wood-treatment-clear-5ltr/36237 (the Dark Oak shade) on my sheds inside & out. Even if the timber does get wet, it dries out pretty quick, and I have yet to see any rot. That said, the sheds are less than 5 years old..

Does that stuff actually 'preserve'? From what I read, it only 'repels', which is a good thing, yes, but I'd like to have the actual timber 'preserved' first, and then repelled.

Emmia

Our shed is tucked in the corner of the patio, and has only ever been coated in a clear cuprinol wood preserver (annually, for the last 7 years) - no rot or issues thus far.

SUPERGIRL2020

Emmia said:

Our shed is tucked in the corner of the patio, and has only ever been coated in a clear cuprinol wood preserver (annually, for the last 7 years) - no rot or issues thus far.

After doing a bit of googling people recommended using this stuff 

SUPERGIRL2020

FreeBear said:

Bendy_House said: Certainly do not paint the inside with Garden Shades or similar.

I use https://www.screwfix.com/p/no-nonsense-wood-treatment-clear-5ltr/36237 (the Dark Oak shade) on my sheds inside & out. Even if the timber does get wet, it dries out pretty quick, and I have yet to see any rot. That said, the sheds are less than 5 years old..

Lots of people online recommend that stuff