Polished Concrete Floor Flatness
The flatter the floor the better the results as when you polish an uneven surface it will have noticeable ridges in it.
Polished concrete floor flatness. A floor flatness rating of 40 - 5 and a floor levelness of 35 - 5 is required on newly placed concrete. High Gloss Premium Finish Polished Concrete A decorative high-gloss finish for exposed aggregate floors. Flatness and levelness values for concrete used on metal decks supported by unshored steel beams is likely to be closer to an overall F F 25F L 15.
When looking at the lifespan of these topical clear sealer coating systems they are often expensive to install have high ongoing maintenance costs and require eventual replacement. The best degree of concrete floor flatness and levelness should be strived for since the floor finish may enhance imperfections such as high and low spots resulting from placement and finishing. 5 rows History of Concrete Floor Flatness and Floor Levelness.
More stringent flatness tolerance that 13mm on 90 of test shown in Table 3 may be required for particular floor finishes such as polished concrete or vinyl where light reflecting from the surface tends to highlight any undulations. From the owner to the architect the general contractor and subcontractor understanding your process and needs helps ensure success. Mechanical Polished Concrete Or true polished concrete is a process in which the concrete is treated and worked on in such a way to increase the overall strength and durability of the surface and to provide maximum abrasion resistance with the longest possible lifespan as a finished surface.
Important for office building floors hotels restaurants and other public facilities that want to project a bright clean professional image. Using this system we grind harden and mechanically polish before applying a penetrating rather than topical sealer. Written by David Stephenson on February 1 2016.
So your concerns are valid. High and low spot problems. This delivers many benefits such as.
Floor Flatness Levelness. Traditionally the polished look on concrete floors has been achieved through the application of surface and clear sealer coatings such as epoxies acrylics and urethane. FLATNESS To achieve a stunning polished concrete floor it must be flat.