Re: My Modified Barrel Vault in Texas
If the barrel vault is a semi circle the lateral force at the base is very small, i don't think you have a problem. Where it can be a problem is when it is an arc of a larger diameter sitting on top of walls. Whether you cut bevels or rely on mortar to fill the gaps will not alter the forces on the arch. However if the mortar falls out (unlikely) then you lose the strength of the arch form.
Originally posted by david s
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