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ggpk Tile Floors July 09th, 2018 - 17:52:04
Knowing the kind of subfloor you`ll be installing ceramic tile flooring over is important. There are three main types of subfloors you might encounter: Vinyl. plywood. and concrete floors. Installing ceramic tile flooring directly to your vinyl or linoleum subfloor surfaces is greatly discouraged. One. it may contain asbestos fibers; and two. vinyl flooring is not a solid as good ol` concrete flooring. When installing ceramic tile on vinyl. experts would recommend rough-sanding. or scarifying. the vinyl floor surface first so your tiling mortar has good grip to set on.
It is remarkably durable. Have you ever considered that the Romans used tile that`s still around today? It holds up exceptionally well even in the highest-traffic areas. From porticos to palaces. the durability of tile has been tested and proven through centuries. So it is a long-lasting investment. A major home improvement website actually declares ceramic tile will last "a lifetime"; in other words. as long as the house is in use! Dime for dime. tile is clearly one of the most cost effective flooring surfaces you can choose.
Can you cut into the layers on top to get a cross section of the existing floor? If there is a heating grate that you can remove. that may show the layers the floor is composed of. What will be reassuring to see is a thick layer. ideally over 1 ½ inches thick of plywood. Alternatively. with the property owner`s permission. we sometimes cut in to it to check what it`s composed of.
There are formulas used in the industry to determine if the subfloor has excessive `deflection` [bounciness. lack of rigidity]. The most cited one is the Tile Council of North America standard for deflection. which is stated as L/360 as a minimum. before tile underlayment is installed. L/360 means that the floor should not bend under weight more than the length (expressed in inches) of the unsupported span divided by 360. For example. if the span between supports runs for 20 feet then the deflection should not be more than 2/3" between the center and the end. L=20 x 12" = 240". L/360 = 240"/360 or 2/3". So 2/3" is the maximum amount of movement the center of the span should be allowed to move.