R403.1.7 Footings on or Adjacent to Slopes

Footings on or adjacent to slope surfaces shall be founded in material with an embedment ...

For footings on adjacent slopes, see Chapter 18 ...

The placement of buildings and structures on or adjacent to slopes steeper than one unit vertical in three units horizontal (33.3-percent slope ...

vertical in 10 units horizontal (10-percent slope). Footings shall be stepped where it is necessary to change the elevation of the top surface of the footings or where the slope of the bottom surface of the footings will exceed one unit vertical in 10 units horizontal (10-percent slope). Wood sill plates and wood walls supported directly on continuous foundations shall be anchored to the foundation in accordance with this section. Cold-formed steel framing shall be anchored directly to the foundation or fastened to wood sill plates anchored to the foundation. Anchorage of cold-formed steel framing and sill plates supporting cold-formed steel framing shall be in accordance with this section and Section R505.3.1 or R603.3.1. Wood sole plates at all exterior walls on monolithic slabs, wood sole plates of braced wall panels at building interiors on monolithic slabs and all wood sill plates shall be anchored to the foundation with minimum 1 / 2 -inch-diameter (12.7 mm) anchor bolts spaced a maximum of 6 feet (1829 mm) on center or approved anchors or anchor straps spaced as required to provide equivalent anchorage to 1 / 2 -inch-diameter (12.7 mm) anchor bolts. Bolts shall extend a minimum of 7 inches (178 mm) into concrete or grouted cells of concrete masonry units. The bolts shall be located in the middle third of the width of the plate. A nut and washer shall be tightened on each anchor bolt. There shall be a minimum of two bolts per plate section with one bolt located not more than 12 inches (305 mm) or less than seven bolt diameters from each end of the plate section. Interior bearing wall sole plates on monolithic slab foundation that are not part of a braced wall panel shall be positively anchored with approved fasteners. Sill plates and sole plates shall be protected against decay and termites where required by Sections R317 and R318. Exceptions: 1. Walls 24 inches (610 mm) total length or shorter connecting offset braced wall panels shall be anchored to the foundation with a minimum of one anchor bolt located in the center third of the plate section and shall be attached to adjacent braced ...

FROST-PROTECTED FOOTINGS ADJACENT TO HEATED STRUCTURE TABLE R403.3(1) MINIMUM FOOTING DEPTH AND INSULATION REQUIREMENTS FOR FROST-PROTECTED FOOTINGS IN HEATED BUILDINGS a AIR FREEZING INDEX (°F-days) b MINIMUM FOOTING DEPTH, D (inches) VERTICAL INSULATION R-VALUE c, d HORIZONTAL INSULATION R-VALUE c, e HORIZONTAL INSULATION DIMENSIONS PER FIGURE R403.3(1) (inches) Along walls At corners A B C 1,500 or less 12 4.5 Not required Not required Not required Not required Not required 2,000 14 5.6 Not required Not required Not required Not required Not required 2,500 16 6.7 1.7 4.9 12 24 40 3,000 16 7.8 6.5 8.6 12 24 40 3,500 16 9.0 8.0 11.2 24 30 60 4,000 16 10.1 10.5 13.1 24 36 60 For SI: 1 inch = 25.4 mm, °C = [(°F) - 32]/1.8. a. Insulation requirements are for protection against frost damage in heated buildings. Greater values may be required to meet energy conservation standards. b. See Figure R403.3(2) or Table R403.3(2) for Air Freezing Index values. c. Insulation materials shall provide the stated minimum R -values under long-term exposure to moist, below-ground conditions in freezing climates. The following R -values shall be used to determine insulation thicknesses required for this application: Type II expanded polystyrene-2.4 R per inch; Type IV extruded polystyrene-4.5 R per inch; Type VI extruded polystyrene-4.5 R per inch; Type IX expanded polystyrene-3.2 R per inch; Type X extruded polystyrene-4.5 R per inch. d. Vertical insulation shall be expanded polystyrene insulation or extruded polystyrene insulation. e. Horizontal insulation shall be expanded polystyrene insulation or extruded polystyrene insulation. TABLE R403.3(2) AIR-FREEZING INDEX FOR U.S. LOCATIONS BY COUNTY STATE AIR-FREEZING INDEX 1500 or less 2000 2500 3000 3500 4000 Alabama All counties ‒ ‒ ‒ ‒ ‒ Alaska Ketchikan Gateway, Prince of Wales- Outer Ketchikan (CA), Sitka, Wrangell- Petersburg (CA) ‒ Aleutians West (CA), Haines, Juneau, Skagway-Hoonah- Angoon (CA), Yakutat ‒ ‒ All counties not listed Arizona All counties ‒ ‒ ‒ ‒ ‒ Arkansas All counties ‒ ‒ ‒ ‒ ‒ California All counties not listed Nevada, Sierra ‒ ‒ ‒ ‒ Colorado All counties not listed Archuleta, Custer, Fremont, Huerfano, Las Animas, Ouray, Pitkin, San Miguel Clear Creek, Conejos, Costilla, Dolores, Eagle, La Plata, Park, Routt, San Juan, Summit Alamosa, Grand, Jackson, Larimer, Moffat, Rio Blanco, Rio Grande Chaffee, Gunnison, Lake, Saguache Hinsdale, Mineral Connecticut All counties not listed Hartford, Litchfield ‒ ‒ ‒ ‒ Delaware All counties ‒ ‒ ‒ ‒ ‒ District of Columbia All counties ‒ ‒ ‒ ‒ ‒ Florida All counties ‒ ‒ ‒ ‒ ‒ Georgia All counties ‒ ‒ ‒ ‒ ‒ Hawaii All counties ‒ ‒ ‒ ‒ ‒ Idaho All counties not listed Adams, Bannock, Blaine, Clearwater, Idaho, Lincoln, Oneida, Power, Valley, Washington Bingham, Bonneville, Camas, Caribou, Elmore, Franklin, Jefferson, Madison, Teton Bear Lake, Butte, Custer, Fremont, Lemhi Clark ‒ Illinois All counties not listed Boone, Bureau, Cook, Dekalb, DuPage, Fulton, Grundy, Henderson, Henry, Iroquois, Jo Daviess, Kane, Kankakee, Kendall, Knox, La Salle, Lake, Lee, Livingston, Marshall, Mason, McHenry, McLean, Mercer, Peoria, Putnam, Rock Island, Stark, Tazewell, Warren, Whiteside, Will, Woodford Carroll, Ogle, Stephenson, Winnebago ‒ ‒ ‒ Indiana All counties not listed Allen, Benton, Cass, Fountain, Fulton, Howard, Jasper, Kosciusko, La Porte, Lake, Marshall, Miami, Newton, Porter, Pulaski, Starke, Steuben, Tippecanoe, Tipton, Wabash, Warren, White ‒ ‒ ‒ ‒ (continued) TABLE R403.3(2)‒continued AIR-FREEZING INDEX FOR U.S. LOCATIONS BY COUNTY STATE AIR-FREEZING INDEX 1500 or less 2000 2500 3000 3500 4000 Iowa Appanoose, Davis, Fremont, Lee, Van Buren All counties not listed Allamakee, Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler, Calhoun, Cerro Gordo, Cherokee, Chickasaw, Clay, Clayton, Delaware, Dubuque, Fayette, Floyd, Franklin, Grundy, Hamilton, Hancock, Hardin, Humboldt, Ida, Jackson, Jasper, Jones, Linn, Marshall, Palo Alto, Plymouth, Pocahontas, Poweshiek, Sac, Sioux, Story, Tama, Webster, Winnebago, Woodbury, Worth, Wright Dickinson, Emmet, Howard, Kossuth, Lyon, Mitchell, O'Brien, Osceola, Winneshiek ‒ ‒ Kansas All counties ‒ ‒ ‒ ‒ ‒ Kentucky All counties ‒ ‒ ‒ ‒ ‒ Louisiana All counties ‒ ‒ ‒ ‒ ‒ Maine York Knox, Lincoln, Sagadahoc Androscoggin, Cumberland, Hancock, Kennebec, Waldo, Washington Aroostook, Franklin, Oxford, Penobscot, Piscataquis, Somerset ‒ ‒ Maryland All counties ‒ ‒ ‒ ‒ ‒ Massachusetts All counties not listed Berkshire, Franklin, Hampden, Worcester ‒ ‒ ‒ ‒ Michigan Berrien, Branch, Cass, Kalamazoo, Macomb, Ottawa, St. Clair, St. Joseph All counties not listed Alger, Charlevoix, Cheboygan, Chippewa, Crawford, Delta, Emmet, Iosco, Kalkaska, Lake, Luce, Mackinac, Menominee, Missaukee, Montmorency, Ogemaw, Osceola, Otsego, Roscommon, Schoolcraft, Wexford Baraga, Dickinson, Iron, Keweenaw, Marquette Gogebic, Houghton, Ontonagon ‒ Minnesota ‒ ‒ Houston, Winona All counties not listed Aitkin, Big Stone, Carlton, Crow Wing, Douglas, Itasca, Kanabec, Lake, Morrison, Pine, Pope, Stearns, Stevens, Swift, Todd, Wadena Becker, Beltrami, Cass, Clay, Clearwater, Grant, Hubbard, Kittson, Koochiching, Lake of the Woods, Mahnomen, Marshall, Norman, Otter Tail, Pennington, Polk, Red Lake, Roseau, St. Louis, Traverse, Wilkin (continued) TABLE R403.3(2)‒continued AIR-FREEZING INDEX FOR U.S. LOCATIONS BY COUNTY STATE AIR-FREEZING INDEX 1500 or less 2000 2500 3000 3500 4000 Mississippi All counties ‒ ‒ ‒ ‒ ‒ Missouri All counties not listed Atchison, Mercer, Nodaway, Putnam ‒ ‒ ‒ ‒ Montana Mineral Broadwater, Golden Valley, Granite, Lake, Lincoln, Missoula, Ravalli, Sanders, Sweet Grass Big Horn, Carbon, Jefferson, Judith Basin, Lewis and Clark, Meagher, Musselshell, Powder River, Powell, Silver Bow, Stillwater, Westland Carter, Cascade, Deer Lodge, Falcon, Fergus, Flathead, Gallanting, Glacier, Madison, Park, Petroleum, Ponder, Rosebud, Teton, Treasure, Yellowstone Beaverhead, Blaine, Chouteau, Custer, Dawson, Garfield, Liberty, McCone, Prairie, Toole, Wibaux Daniels, Hill, Phillips, Richland, Roosevelt, Sheridan, Valley Nebraska Adams, Banner, Chase, Cheyenne, Clay, Deuel, Dundy, Fillmore, Franklin, Frontier, Furnas, Gage, Garden, Gosper, Harlan, Hayes, Hitchcock, Jefferson, Kimball, Morrill, Nemaha, Nuckolls, Pawnee, Perkins, Phelps, Red Willow, Richardson, Saline, Scotts Bluff, Seward, Thayer, Webster All counties not listed Boyd, Burt, Cedar, Cuming, Dakota, Dixon, Dodge, Knox, Thurston ‒ ‒ ‒ Nevada All counties not listed Elko, Eureka, Nye, Washoe, White Pine ‒ ‒ ‒ ‒ New Hampshire ‒ All counties not listed ‒ ‒ ‒ Carroll, Coos, Grafton New Jersey All counties ‒ ‒ ‒ ‒ ‒ New Mexico All counties not listed Rio Arriba Colfax, Mora, Taos ‒ ‒ ‒ New York Albany, Bronx, Cayuga, Columbia, Cortland, Dutchess, Genessee, Kings, Livingston, Monroe, Nassau, New York, Niagara, Onondaga, Ontario, Orange, Orleans, Putnam, Queens, Richmond, Rockland, Seneca, Suffolk, Wayne, Westchester, Yates All counties not listed Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson, Lewis, St. Lawrence, Warren ‒ ‒ ‒ North Carolina All counties ‒ ‒ ‒ ‒ ‒ (continued) TABLE R403.3(2)‒continued AIR-FREEZING INDEX FOR U.S. LOCATIONS BY COUNTY STATE AIR-FREEZING INDEX 1500 or less 2000 2500 3000 3500 4000 North Dakota ‒ ‒ ‒ Billings, Bowman Adams, Dickey, Golden Valley, Hettinger, LaMoure, Oliver, Ransom, Sargent, Sioux, Slope, Stark ...