![]() ![]() A ¾” thick layer of gypcrete on a floor or ceiling will provide a 1-hour fire rating. Gypcrete StrengthsĪ major advantage of gypcrete is its fire resistance. Gypcrete has a number of features that make it a fantastic flooring underlayment, but it has its limitations. This is a major advantage over traditional concrete, which can take days to cure enough to handle foot traffic and even longer until you can complete heavy work on it. An entire floor can typically be completed in a single day, and the floor will be able to handle foot traffic in 90 minutes in most cases. ![]() #GYPCRETE INSTALLATION PROCESS INSTALL#When it comes to the installation itself, it has a much faster install time than concrete, as gypcrete dries and cures rapidly. The layer is typically between ½” and 1 ½” thick, but it can also be applied in 3” thicknesses in some cases. Then, it’s troweled smooth and allowed to cure. The gypcrete is applied in a thin layer using a pump and hose until the entire surface is covered. Gypcrete installation must be completed by a professional, so unfortunately a DIY job is out of the question. Like concrete, it can’t be nailed into easily, so nail down wood flooring is not an option when using a gypcrete layer. This means it’s applied between the subfloor and the top layer of flooring. The most commonly used application of gypcrete is as a flooring underlayment. Either way, it’s easier to apply than standard concrete, and can be used in thin layers that would not be possible with standard concrete. Gypcrete is also typically marketed as self-leveling, although some gypcrete mixtures will require some form of manual leveling. The mixture skews towards a high level of gypsum versus other aggregates, which makes the final product lightweight and easy to work with. Gypcrete is a building material containing gypsum, sand, Portland cement, and water. ![]()
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