When we get heavy rain the water comes up from the creek and seeps into the shed at different places . I have tried spraying sealant paint with minor success. Any other ideas please
Hi @stormin,
Welcome to the Bunnings Workshop community, it is fantastic to have you with us.
If you can share some photos of your shed, specifically where the base meets the slab, then this will greatly help us to understand the issue and offer specific recommendations.
Generally speaking, though, things like polyurethane sealant and aluminium angles can help a lot.
Check out How to waterproof a shed floor, where my colleague @MitchellMc used some of these tactics on his own shed.
Let me know if you need a hand uploading images. We will assist with more specific advice when we can see them.
Jacob
The guy before me put expand foam around the bottom . The water outside the shed can get up 1mtr high against the shed. I have tried sealant on the seam overlap as well.
Hello @stormin
If the water comes up to a meter in height against the shed walls, I'm afraid plugging the edges will not be enough to stop the water from coming into the shed. I propose clearing all the sides of the shed (inside and out) by at least half a meter and observing carefully how the water approaches the shed. The solutions may involve creating a diversion for the water to flow away from the shed or it might be necessary to build a wall to prevent water from reaching the sheds location. The solutions offered in the guide - How to waterproof a shed floor involves sealing the shed from rainwater from coming through the sides of the shed and it might not be enough to address your issue.
Let me call on our experienced members @Dave-1, @Nailbag, @Noyade and @DIY4Knuckleheds for their recommendations.
If you need further assistance, please let us know.
Eric
Good Evening @stormin
I am a little concerned with "the water can come up to 1m high" :) Yeah there's nothing I can think of that will seal the door or the walls. Way too many entry points for water to get in.
As @EricL has suggested, clearing away around the shed will give a lot better indication on how the water is getting in on low floods/rain. It will also be needed if the base can be sealed from the outside (if you seal it from the outside then water pressure will push harder against the seal so its less likely to push the seal away)
It looks like you have earth filled tires as a retaining wall, what is the base of your shed made up of? And also how far away is the creek? If you can show us some further back photos we may be able to come up with some other ideas.
Dave
Hi @stormin
Firstly, you need to clear all the sides of soil and old materials below the internal floor line. Then the outer walls need to "overhang" the internal floor level. If it isn't, then attach a matching profile flashing 100mm above and below using self-drilling sealed metal screws. This would be sealed under and along the top edge using roof and gutter silicone. A drain around the base of the shed that ideally is connected to storm water by a licensed plumber will prevent water rising rain water. But to prevent rising water reaching upwards of a meter from a flooding creek will require some form of diversion well before the shed. This will most likely require substantial earthworks etc. I would suggest a plumbing service that specialises in this type of work. Nailbag
