CODE BASICS: Residential, Based on the 2009 International Residential Code |
Storm Drainage: The International Residential Code (IRC) prescribes methods to direct surface water away from the foundation to an approved location. Water held against the foundation leads to wet or damp basements or crawl spaces and over time can cause damage to construction materials both inside and outside the structure. Mold thrives in such moist environments, contributing to an unhealthy living environment. In addition, water saturation of the soils adjacent to foundations increases the lateral pressure against the structure. Proper design of surface drainage also prevents nuisance ponding on the lot and possible flooding of structures during periods of heavy rain. |
The Building Code Basics series based on the 2009 International Building, Residential and Fire Codes explains requirements using non-code language to help you understand the material or explain it to others. Technically accurate and easy to understand, these are the perfect resources for builders, owners, students, plan reviewers, inspectors and permit technicians. |
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