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Oklahoma Administrative Code (Last Updated: March 11, 2021) |
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TITLE 748. Oklahoma Uniform Building Code Commission |
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Chapter 20. Adopted Codes |
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Subchapter 5. IRC® 2015 |
SECTION 748:20-5-11.1. IRC® 2015 Chapter 9 Roof Assemblies
Latest version.
- (1) Section R905.2.1 Sheathing requirements. This section has been modified to clarify solidly sheathed decking should be in accordance with Section R803 or to the asphalt shingle manufacturer's installation instructions. This section has been modified to read: R905.2.1 Sheathing requirements. Asphalt shingles shall be fastened to solidly sheathed decks in accordance with Section R803 or to the asphalt shingles manufacturer's installation instructions.(2) Section R905.2.8.5 Drip edge. This section has been modified to add an exception to the section when certain criteria is met. This section has been modified to read: R905.2.8.5 Drip edge. A drip edge shall be provided at eaves and rake edges of shingle roofs. Adjacent segments of drip edge shall be overlapped not less than 2 inches (51 mm). Drip edges shall extend not less than 1/4 inch (6.4 mm) below the roof sheathing and extend up back onto the roof deck not less than 2 inches (51 mm). Drip edges shall be mechanically fastened to the roof deck at not less than 12 inches (305 mm) o.c. with fasteners as specified in Section R905.2.5. Drip edges shall be installed over the underlayment along rake edges. Exception: If a nominal 1 inch by 2 inch (25 mm by 51 mm) shingle mold is used, attached to the fascia and the starter course of shingles is extended a minimum of 1/4 inch (6.35 mm) and not more than 1 inch (25 mm) then a metal drip edge is not required.(3) Section R908.3.1.1 Roof re-cover. This section has been modified to list a fourth condition for when a roof re-cover shall not be permitted. This section has been modified to read: R908.3.1.1. Roof re-cover. A roof re-cover shall not be permitted where any of the following conditions occur:(A) Where the existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing.(B) Where the existing roof covering is slate, clay, cement or asbestos-cement tile.(C) Where the existing roof has two or more applications of any type of roof covering.(D) Where the existing roof has one or more application of asphalt shingles additional applications of asphalt shingles shall not be permitted.