Wooden shed standing on concrete base – advice please.?
I have a large wood shed standing on a concrete base. The driving rain has caused seepage between the wooden sides and the concrete base. What is the best way to seal this please? I need to make the building water-tight.
Many thanks.
Hi, what I did is to get fence posts or similar, face one edge with roofing felt, this was placed at top when laid on concrete base and then mounted shed on the posts. This raises shed above concrete. The felt is a good barrier between posts and shed base to stop rising damp. Do not fill in round sides as this will encourage vermin to nest there.
Silicon bathseal will do the trick.From the inside out.
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I would use silicone caulk. Find it at all hrdware stores as well as wal-mart.
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Can’t fully picture your situation but the shed should be raised about 3 to 4 inches above the concrete to allow ventilation. The timber shed should rest on timbers in that fashion. Though rain would get under the building it would dry out. If the base was totally sealed dampness would rot the floor.
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raise the shed,with 2by 4s and use a silicone caulk at the 2by4 on the outside of the shed, also if possible paint the 2by4s too protect them
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self ,wood worker
If you landscape allows, remove the soil around you slab so that it ill be higher that the sourounding ground level. This will allow water to run away from your slab. Also as suggested you can seal with silicone. In addition you want your siding to extend below the top of the slab but not touch the ground. This will allow rain to run off with getting on the slab and reduce the chance of seepage.
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General Contractor 40+ years
Hi, what I did is to get fence posts or similar, face one edge with roofing felt, this was placed at top when laid on concrete base and then mounted shed on the posts. This raises shed above concrete. The felt is a good barrier between posts and shed base to stop rising damp. Do not fill in round sides as this will encourage vermin to nest there.
References :