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Attached decks and porches shall meet the elevation requirements of Section R306.3.2 and shall either meet the foundation requirements of this section or shall be cantilevered from or knee braced to the building or structure.
For this reason, the 2024 IRC will require that ledger flashing be tight to the WRB, when one already exists or in new construction. The flashing can lace shingle fashion into the WRB laps, or it can be sealed to the face of the WRB with a self-adhering membrane.
The IRC establishes minimum requirements for one- and two-family dwellings and townhouses using prescriptive provisions. It is founded on broad-based principles that make possible the use of new materials and new building designs.
The 2024 International Energy Conservation Code, Chapter 11 of the International Residential Code (IRC) and IRC energy appendices are in the final stages of the development process.
What are the code requirements for deck railings and railing posts? To establish your deck railing system as safe and fully compliant with building codes, start by making note of the primary factors listed below. As always, it’s important to note that specific code requirements can vary regionally.
Decks attached to single family detached homes are generally regulated under the rules of the International Residential Code (IRC). The IRC requires guardrails to be at least 36" in height, measured from the deck surface to the top of the rail.
The International Residential Code (IRC), adopted by most US cities and towns, requires 36-in.-high guardrails (called “guards” in the 2015 IRC and later versions) for decks more than 30 in. above the ground. The guardrail system must be strong enough to resist the following loads:
Thanks to the support of NADRA members we have shared our knowledge with others in the campfire discussions regarding deck code proposals for the 2021 International Residential Code. There were 9 proposals submitted with our assistance and approval.
Residential Deck Railing Requirements. Decks built onto single-family homes must adhere to the International Residential Code (IRC). The IRC requires a minimum 36” height for all guardrails, but states and even local municipalities have their own deck railing height requirements too.
Complete deck building code tips for railings, stairs, stringers, treads, foundations, ledger boards and more...