ᐅ Sealing the Foundation of a Garden Shed

Created on: 3 Feb 2023 16:14
J
jochen35
Hello, I want to set up a wooden garden shed (3x3 m (10x10 ft), 44 mm (1.7 inches) thick, double-glazed) for some fitness equipment and plan to use an old terrace edged with curb stones and paved with concrete slabs (40x40x4 cm (16x16x1.6 inches)).

To protect the shed from rising moisture (e.g., through the joints), I am considering applying a bitumen waterproof membrane over the entire surface.

What do you think about this, or how would you waterproof the base?

Cheers,
jochen35
W
WilderSueden
15 May 2023 13:39
The construction finishes fairly flush on the inside of the curbstones. We drilled them from the side and secured the substructure with flat connectors.
Tolentino16 May 2023 09:48
I would prefer to use isolated footings. You can embed U or H profiles directly into the concrete. You can still install curbstones around them at the end. Advantage: Water can flow freely underneath the structure. Disadvantage: You’ll need an additional floor layer.

But if you build it like @WilderSueden, that applies anyway.
You could also simply use the paving slabs as the floor.
Then, of course, you’ll have rising damp.