The following appendix is a discussion on floor flatness measurement methods and is provided for general information only 01 history of flatness and levelness measurement of concrete substrate surfaces to receive flooring.
Floor levelness computer.
Is a concrete construction consultant for structural services inc.
F numbers provide architects and contractors a method of determining the flatness and levelness of a concrete floor slab.
Computer programs to analyze and design slabs and other structures.
Some new flooring installations require a level subfloor such as resilient tile flooring.
For over 50 years concrete floor surface tolerances were typically measured and described by the maximum gap allowed under a 3000 mm 10 foot long straightedge.
Levelness how closely the floor conforms to the specified slope and flatness how much the surface deviates from a two dimensional plane have become important specifications in construction.
How to determine if a floor is level.
Over time an unlevel subfloor could cause costly damage to the.
He was the owner and president of one of the southeast s largest concrete contractors.