Interpretation #8470

Published November 20, 2020

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Original Request

Code Version
2017
Code
RESIDENT
Code Description
Chapter
Chapter 3 Building Planning
Section
301.2.1
Topic
Wind Design Criteria

Question

Is it the intent of section R301.2.1 to allow and consider the following design methods as "alternate methodologies" or "alternate methods" of design for wind resistance in structure as referenced in section B107.3.4.2?
1.AF&PA Wood Frame Construction Manual (WFCM).

2.ICC Standard for Residential Construction in High-Wind Regions (ICC 600).

3.ASCE Minimum Design Loads for Buildings and Other Structures (ASCE 7).

4.AISI Standard for Cold-Formed Steel Framing— Prescriptive Method For One- and Two-Family Dwellings (AISI S230).

5.Florida Building Code, Building; or

6.The MAF Guide to Concrete Masonry Residential Construction in High Wind Areas shall be permitted for applicable concrete masonry buildings for a basic wind speed of 130 mph (58 m/s) or less in Exposure B and 110 mph (49 m/s) or less in Exposure C in accordance with Figure R301.2(4) as converted in accordance with R301.2.1.3

Answer Published 11/20/2020 at 8:40 AM

Yes. For wind design higher than 115 mph

Commentary

None.