Building Codes

Common Walls

2018 (IRC) R302.2.2 Common walls

Common walls separating townhouses shall be assigned a fire-resistance rating in accordance with Item 1 or 2. The common wall shared by two townhouses shall be constructed without plumbing or mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated for fire exposure from both sides and shall extend to and be tight against exterior walls and the underside of the roof sheathing.

Common Walls Slab Detail

 

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Last Updated on 4 years ago

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