Traditionally the accepted minimum requirement for floor rigidity is l 360 before the tile underlayment is installed.
Tile wall deflection.
How to fix floor deflection for ceramic tile signs of deflection.
Whether you are installing stone or ceramic tile over floors and walls there s one thing to consider.
The l 360 standard means that the floor should not deflect more than the span divided by 360.
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Setting tile on vertical surfaces and ceilings brings extra challenges like deflection and gravity to the project.
If the span of the joists is 10 feet between supports then the deflection should not be more than 1 3 between the center and the end.
The marble institute of america recommends that total load deflection be limited to l 720 for spans up to 14 0 and a maximum deflection of 7 32 for spans greater than 14 0.
It s not always possible to feel a bounce when you re crossing the floor so stand in different.
The most common cause of deflection in a floor joist system is undersized joists that span too great a.