We have a client who wants his garage converted to conditioned living space. His present garage floor will need to be raised to the level of his existing living room floor pad. We have raised a few garage pads through the years and, in the process, have used re-mesh and re-bar in the new pour. I am wondering, though: Do we really need to use any steel (since we are going on top of an existing pad)? Do we really need to dowel into the house pad (since the new overlaid pad will be enclosed by the garage stem-wall)? And, lastly, should we put a vapor barrier (whether visqueen or felt) on the old garage floor before pouring over it? Thanx a bunch.
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Nails,
Steel is not necessary, but dowels are in the edges, vapor barrier should be included as it is not normal practice in most areas to put one under a garage floor, make sure you compact the fill over the original floor thoroughly before you pour the new. Good luck.
Mark