Irc Code Garage Floor Slope

International building code 406 2 9.

Irc code garage floor slope.

It is usually 1 8 to 1 4 per foot. The international residential code irc lays out a series of requirements for pouring a concrete slab on grade. Everything i ve read says slope it 1 8 to 1 4 inch per foot toward the garage door. Appliances located in a garage or carport shall be protected from impact by automobiles.

Getting ready to pour a garage floor slab. The area of floor used for parking automobiles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway. 2009 2012 2015 and 2018 international residential code irc section r309 2 carports. The slab has to be at least 3 5 thick and possibly thicker for expansive or other difficult soils.

Here is the citation from the international residential code irc. A single door shall be allowed provided the sources of ignition in the appliance are at least 18 inches 457 mm above the floor. Its more than just forms and pouring concrete. The garage is 28 ft deep so 1 8 to 1 4 inches per foot means the slab shoub be 3 5 to 7 inches higher at the end opposite the door.

The building code requires that a garage floor be sloped towards the door but does not specify a minimum slope. Appliances located in private garages shall be installed with a minimum clearance of 6 feet above the floor. Asphalt surfaces shall be permitted at ground level in carports. 7 inches sounds like too much both visually and from a walkability standpoint so the most i m going to consider is 3 5.