How much weight a concrete roof of 12x06 feet dimensions can hold. Will it easily support a water tank of 150 gallon capacity ?

  • How thick is the roof? – Chenmunka Jan 11 '18 at 9:19
  • How much rebar ? Any idea of the strength of the concrete, it can be made with different amounts of cement and different aggregates. – blacksmith37 Jan 11 '18 at 16:44
  • depends on what is holding up the roof – jsotola Jan 12 '18 at 0:22
  • This is heavily dependant on the the mix of the concrete and wetness of the concrete at pouring, proper vibrating and placing. I wouldn't want to walk under it without alot of ignorance and hope. – Damon Jan 16 '18 at 5:06

Well, basing the calcs on water, that is around 568kg or 1253lbs plus the weight of the tank itself and any associated pipework. Whether or not it will support such a load depends on the thickness of the concrete and whether or not it has any reinforcement.

Adding weight to a basically suspended slab increases the tension on the concrete and generally, concrete is weak in tension (unless reinforced).

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