Maximum Floor Slope

Nearly all will say that if a floor slopes 1 and 1 2 inches in twenty feet or more that there should be further investigation.

Maximum floor slope.

5 6 2 changes in slope between shallow and deep. It is usually 1 8 to 1 4 per foot. Your figure of 1 4 per foot doesn t sound bad. The building code requires that a garage floor be sloped towards the door but does not specify a minimum slope.

Here is the citation from the international residential code irc. A 2 slope will probably ensure better drainage we could also find no slope tolerance for use when a floor slope is specified. Aci 117 90 st andard specifications for tolerances for concrete construction and materials gives a level alignment tolerance of 3 4 inch for top of slab elevation of slabs on grade. Shower floor slope to efficiently drain the recommended minimum slope for a shower floor is about 4 percent or a 1 2 inch drop per every 12 inches from the shower walls to the drain.

It stands to reason that the steeper the slope then the more likely you are to slip on that slope yet one of the biggest mistakes we see is a lack of understanding that a slope on a floor requires an increase in the slip resistance value srv also know as the pendulum test value ptv. 213 cm to the point of the first slope change as shown in figure 5. But they got one low spot right where i got out of my car. Floors that slope 2 or 3 inches in 20 feet would be a very serious concern.

I d slope it as much as you can stand. Another consideration regardless of the amount of slope is whether there is structural damage in the home or only cosmetic damage. When they poured my garage slab in my last house i asked em to slope it a lot. Floor slopes shall be reasonably uniform and comply with 5 6 1 through 5 6 3.