Foundations
10 articles
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Below-Grade Foundation Walls Enclosing Interior Space Must Be Dampproofed
When does a basement foundation wall need dampproofing?
R406.1
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Concrete Footing Size Depends on Loads, Stories, Soil, and Wall Type
How wide and thick do concrete footings need to be for a house?
R403.1.1
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Exterior Footings Must Meet Minimum Depth and Frost Protection Rules
How deep do footings need to be below grade and below the frost line?
R403.1.4
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Foundation Drains Are Required Around Many Below-Grade Enclosed Spaces
Is a perimeter foundation drain required around my basement or crawl space?
R405.1
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Foundation Footings Must Bear on Undisturbed Soil or Engineered Fill
Do house footings have to sit on undisturbed soil, or can I pour on fill?
R401.4
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Foundation Reinforcement Depends on Seismic Design, Wall Type, and Soil Conditions
When does a foundation need rebar or special reinforcement?
R403.1.3
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Foundation Walls Need Proper Bearing and Footing Projection
How close to the edge of a footing can a foundation wall sit?
R403.1.1
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Frost-Protected Shallow Foundations Need Approved Insulation Details
Can I use a frost-protected shallow foundation instead of digging below frost depth?
R403.3
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Sill Plates Must Be Anchored to the Foundation with Proper Bolts or Approved Anchors
How are sill plates supposed to be anchored to the foundation?
R403.1.6
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Waterproofing Is Required Where Severe Soil-Water Conditions Exist
When is waterproofing required instead of dampproofing?
R406.2
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