Foundations

IRC 2024 Anchor Bolts: Sill Plate Attachment to Foundation

What are the IRC 2024 requirements for anchor bolts connecting sill plates to concrete foundations?

R403.1.6

IRC 2024 Basement Waterproofing vs Dampproofing: When Each Is Required

What is the difference between dampproofing and waterproofing under IRC 2024, and when is each required for basement walls?

R406

IRC 2024 Concrete Foundation Wall Thickness: Minimum 6 Inches for Most Conditions

How thick does a concrete foundation wall need to be under IRC 2024, and when is reinforcement required?

R404.1

IRC 2024 Crawl Space Ventilation: 1-to-150 Ratio or Sealed Unvented Design

What are the IRC 2024 ventilation requirements for crawl spaces, and when is a sealed unvented crawl space allowed?

R408.1

IRC 2024 Footing Depth: Below Frost Line to Prevent Heaving

How deep do footings need to be under IRC 2024, and how do I find the frost depth for my location?

R403.1.4

IRC 2024 Footing Size: Width and Thickness Minimums for Continuous Footings

What are the minimum width and thickness requirements for continuous concrete footings under IRC 2024?

R403.1

IRC 2024 Slab-on-Grade: Thickness, Vapor Barrier, and Subgrade Requirements

What are the IRC 2024 minimum requirements for residential slab-on-grade construction, including thickness, vapor retarder, and subgrade?

R506

IRC 2024 Stepped Footings: Rules for Sloped Sites and Split-Level Foundations

What are the IRC 2024 requirements for stepped footings on sloped sites, and how are the horizontal and vertical dimensions limited?

R403.1.5