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// CODE SNIPPET

R302.2.4 Parapets for Townhouses

Residential Code 2018 of Kansas > 3 Building Planning > R302 Fire-Resistant Construction > R302.2 Townhouses > R302.2.4 Parapets for Townhouses
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Parapets constructed in accordance with Section R302.2.5 shall be constructed for townhouses as an extension of exterior walls or common walls in accordance with the following:
  1. Where roof surfaces adjacent to the wall or walls are at the same elevation, the parapet shall extend not less than 30 inches (762 mm) above the roof surfaces.
  2. Where roof surfaces adjacent to the wall or walls are at different elevations and the higher roof is not more than 30 inches (762 mm) above the lower roof, the parapet shall extend not less than 30 inches (762 mm) above the lower roof surface.
    Exception: A parapet is not required in the preceding two cases where the roof covering complies with a minimum Class C rating as tested in accordance with ASTM E108 or UL 790 and the roof decking or sheathing is of noncombustible materials or fire-retardant-treated wood for a distance of 4 feet (1219 mm) on each side of the wall or walls, or one layer of 5/8-inch (15.9 mm) Type X gypsum board is installed directly beneath the roof decking or sheathing, supported by not less than nominal 2-inch (51 mm) ledgers attached to the sides of the roof framing members, for a distance of not less than 4 feet (1219 mm) on each side of the wall or walls and any openings or penetrations in the roof are not within 4 feet (1219 mm) of the common walls. Fire-retardant-treated wood shall meet the requirements of Sections R802.1.5 and R803.2.1.2.
  3. A parapet is not required where roof surfaces adjacent to the wall or walls are at different elevations and the higher roof is more than 30 inches (762 mm) above the lower roof. The common wall construction from the lower roof to the underside of the higher roof deck shall have not less than a 1-hour fire-resistance rating. The wall shall be rated for exposure from both sides.

Related Code Sections


R302.2.4 Building Planning, Parapets for Townhouses
Parapets constructed in accordance with Section R302.2.5 shall be constructed for townhouses as an extension of exterior walls or common walls ...
Residential Code 2018 of Kansas > 3 Building Planning > R302 Fire-Resistant Construction > R302.2 Townhouses > R302.2.4 Parapets for Townhouses
R606.4.4 Wall Construction, Parapet Walls
Unreinforced solid masonry parapet walls shall be not less than 8 inches (203 mm) thick and their height shall not exceed four times their thickness ...
Residential Code 2018 of Kansas > 6 Wall Construction > R606 General Masonry Construction > R606.4 Thickness of Masonry > R606.4.4 Parapet Walls
705.11 Fire and Smoke Protection Features, Parapets
Parapets shall be provided on exterior walls of buildings. Exceptions: A parapet need not be provided on an exterior wall where any ...
Building Code 2018 of Kansas > 7 Fire and Smoke Protection Features > 705 Exterior Walls > 705.11 Parapets
2109.2.4.3 Masonry, Parapet Walls
Parapet walls constructed of adobe units shall be waterproofed ...
Building Code 2018 of Kansas > 21 Masonry > 2109 Empirical Design of Adobe Masonry > 2109.2 Adobe Construction > 2109.2.4 Detailed Requirements > 2109.2.4.3 Parapet Walls
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