Lightweight Concrete Floor Over Plywood

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Lightweight concrete floor over plywood. Does anyone out there have any information about how we can do a finished concrete floor on a plywood subfl. We recommend applying param 5500 at a minimum thickness of 3 8 1 2 is preferred to. For the second story a foamed type of lightweight concrete is being used over plywood for sound absorption between floors. Should i put a membrane between the concrete topping over plywood subfloor we are going to be pouring a 1 5 concrete slab overtop of a plywood floor to encase our in floor heating pipes.
Concrete floor video on how to install concrete over an existing wood subfloor. The installation of calcium aluminate cement based self leveling concrete param 5500 along with expanded metal lath for reinforcement is a successful fast track method to convert a plywood subfloor into a beautiful concrete floor. Plywood substrate in a kitchen. When installed correctly your concrete over plywood floor will not permit moisture through will not warp or buckle and will come with all the benefits of concrete in an easy to care for floor.
This is often done on raised foundations and multiple story homes or building. We are hearing a lot of concerns from concrete contractors about pouring that thin. Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete. We are building a 2 story condominium complex with concrete slab on grade.
The original plan was to do a 2 concrete pour over our radiant heat system as recommended by our builder. Lots of guys pour directly ontop of the plywood but i wanted to find out if anyone has heard of putting like a building paper down first.