How to seal gap between garage brick wall and ceiling?

[bkz]

There's a small gap running along & between our garage brick wall and ceiling which allows rain to fall through from the roof space. We're looking to seal up this gap somehow. Is there a way to do this and that’s waterproof?

I have attached photos and there seems to be some painted / colored sections on the brick edge, potentially old owner tried to seal this area previously? Or what is this?

 

 

[Jewelleryrescue]

Hi @bkz 

Typically it is  best to try tackle the water issue from the outside and stop it entering full stop. as if you seal  on the inner egde as a last resort the water maybe a mould issue or a damp wall issue as it allready is inside.

From a flat sheet edge  water if it runs of the edge slowly will by means of surface tension not drop to the ground as gravity intended but curl under and flick in towards the brick  wall.   With out and outside photo I would  be pushing a stripe of aluminium flashing 100mm wide as a guess between the roof and brick work  using silicone as a seal top and bottom to the roof and the briccks then bend the flashing down at an angle so any water is forced away.

I offer this advice  outside  unseen.

So  Come  back to the workshop and  lets talk  more about your garage outside.

[Nailbag]

Hi @bkz 

Definitely agree with @Jewelleryrescue  that the best way to deal with this issue will be from the outside and with some form of metal flashing. The light you can clearly see in one of the photos highlights a decent opening that needs to be addressed. 

Sending through a few outside photos both wide and closer up and if possible at the same level as the gap will help to provide that more accurate advice. 

Nailbag

[bkz]

Thank you, unfortunately the outside of this part of garage sits on the adjoining neighbors property/unit. 

[bkz]

Thank you, unfortunately the outside of this part of garage sits on the adjoining neighbors property/unit. I’ll see if I can ask them to help with photos and then possibly tackle the repair from their side. 

[Jewelleryrescue]

Hi @bkz 

Plan  B  from the inside of the garage

would be to  pump a  truck load of  silicone weather proof sealer right into the gaps between the roof and the wall.

The goal is to have a solid bead of silocon under the roof from the inside to the outside not  just a  bead on the inside.

You  will need 3 to 4 tubes depending on the length of  that wall get  extra.  Any left over  un opened tubes can  be refunded at bunnings thats a huge  bonus shopping there

[bkz]

Thank you, I’ll try that 

[DIYGnome]

Hello @bkz 

Are you able to get on the roof and install a timber fascia along the length of the shed (from your side of the property? 🤔

[JacobZ]

Hi @bkz,

Please accept my welcome to the Bunnings Workshop community. It is wonderful to have you with us.

It's great to see our wonderful members have already jumped in with their advice. They've covered all of the options that I see.

It's worthwhile communicating with your neighbour before deciding on a solution, as it is much easier to stop water entry from the outside. If they are happy to work with you, then you will have more success than any efforts from the inside.

If you have any further questions, please don't hesitate to reach out.

Jacob

[bkz]

Thanks Jacob