Whether you are installing stone or ceramic tile over floors and walls there s one thing to consider.
Ceramic tile deflection limits.
The l stands for length.
Mia installation general information 3 8 3 frame construction.
Tile industry associations recommend special total load deflection limits the following tables list the components and weights of typical floor systems along with the deflection limits that apply.
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Some large natural stone tiles that aren t as uniformly strong as ceramic tile may require an even stiffer structure.
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These deflection limits apply both to the framing supporting the substrate and to the substrate itself for example when a concentrated load is applied between joists.
Until recently the tile council had specified a standard for ceramic tile only based on using test equipment that was intended to limit deflection of floor sheathing.
Mia suggest in their standards to use a stricter total load deflection limit of l 720 where stone tiles are used.
So if you have a beam 20ft long the allowable deflection limit is 20ftx12in ft 240 1.
The tile council of america recommends that deflection be limited to l 360 l span length in inches under total load for ceramic tile.
However the limit of span 360 was often misunderstood as the same limit for framing members specified by the building code.