Irc Garage Floor Slope

1 4 a foot is a lot.

Irc garage floor slope.

Btw how about filling out your profile so we have an idea what area you live in. 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. The 06 merely states that the floor must be non cumbustible material and if for the storage of automobiles be sloped to facilitate drainage. There is no definition for a garage in the irc all i have at home is the 06.

Irc code for concrete slope user 144543 posted in general discussion on june 28 2007 04 53am can anyone tell me where in the code book is the information regarding the slope of concrete inside the garage and under porches. On a 20 deep garage concrete sloping toward the big door that would be 5 and 6 on a 24 deep garage. It is usually 1 8 to 1 4 per foot. Here is the citation from the international residential code irc.

The irc does not specify the degree of slope in 309 4. The sills of all door openings between the garage and dwelling shall be raised not less than four inches above the garage floor 1999 section 407 5 the sills of all door openings between private garages and adjacent interior spaces shall be raised not less than 4 inches above the garage floor. If roof trusses or rafters bear on header special header design may be required double 2x4 or 2x6 trimmers each end of overhead door header garage door opening header size x. If bollards or stanchions are not installed then the unit must be raised 6 feet above the garage floor per irc g2408 3 305 5.

Appliances located in private garages shall be installed with a minimum clearance of 6 feet above the floor. I did a key word search through the 2006 ibc using several different key words garage floor floor slope slope to drain 1 8 per foot 1 8 in 12 and came up dry. The area of floor used for parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main. Of course we don t have to deal with heavy snow etc.

From the irc r309 4. The building code requires that a garage floor be sloped towards the door but does not specify a minimum slope. Floor slope back to front not less than 1 8 per ft irc 309 1 3 1 2 minimum concrete slab all vegetation shall be removed 408 5 dimension note. Here a more typical slope would be 2 5 or 3.

However the irc would allow a flush condition at the garage house door though i wouldn t draw it.