HPDesignConsult

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  1. Let's not confuse the Building Code Requirements with Good Building Practice. All Building Codes are based on the absolute minimum standards to build a home. They are not a representation of Good Building Practice. A step down or slope down into an attached garage may not be required, but I believe it is still a good idea. For one, it helps avoid water entering the house. Although the slab is sloped, it is minimal so we rely on Thresholds and Weather stripping to stop water but these can fail over time. A raised door threshold stops that. Also, we rely no weatherstripping stopping the ingress of fumes from the garage, but as noted above, with time, weatherstripping fails. Gasoline fumes are heavier than air and will stay near the floor, a curb at the door is a good secondary level of defense.