How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
What is the code minimum slope for a porch floor away from the house?
Sunday, April 10, 2022
A residential porch falls under the category of an an “impervious surface within 10 feet of the building foundation” in the International Residential Code (IRC R401.3), which requires a minimum slope of 2 percent (equivalent to 1/4-inch per foot) away from the house. This standard is the same for both roofed and open porches.
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Field Guide for Home Inspectors, a quick reference for finding the age of 154 brands of HVAC systems, water heaters, and electrical panels, plus 210 code standards for site-built and manufactured homes, and the life expectancy rating of 195 home components. Available at amazon.com for $19.95.
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Here’s links to some of our other articles about PORCHES:
• What are the most common problems when a homeowner encloses a porch without a building permit?
• When is a railing required for the edge of a deck or porch?
• How many exterior steps require a handrail?
• What is code requirement for receptacle outlets at a porch, deck, or balcony?
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