• Codes
  • Features

    Features Overview

    Go to features
    Reference

    Reference.

    A reliable and up-to-date source of codes.
    Research

    Research.

    Rapidly and efficiently calculate project parameters.
    Collaboration

    Collaboration.

    Get everyone on the same page and streamline code research.
    Workflows
    Architects General Contractor Building Official & Plans Examiner Inspectors Owner Subcontractors Code Consultants
  • Pricing
  • Login
  • Sign Up
Sign Up
Login
  • Code Library
  • Features
  • Pricing
  • About
  • Careers
  • Help
  • Contact
  • Terms
  • Privacy
Sign Up
Upgrade to Premium
Code calculators: Code Calculators automatically generates a detailed list of requirements.
REFERENCE
Amendment Styling
Industry-leading search
Suggested code sections
Code diagrams
RESEARCH
Code calculators
Filter by topic
Code compare
Code sheet exports
COLLABORATION
Team projects
Bookmarks
Comments
START 2 WEEK FREE TRIAL
Have an account? Sign in
// CODE SNIPPET

722.2.1.2.1 Two or More Wythes

Building Code 2018 of Wyoming > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.2 Concrete Assemblies > 722.2.1 Concrete Walls > 722.2.1.2 Multiwythe Walls > 722.2.1.2.1 Two or More Wythes
JUMP TO FULL CODE CHAPTER

The fire-resistance rating for wall panels consisting of two or more wythes shall be permitted to be determined by the formula:

(Equation 7-4)

where:

R = The fire endurance of the assembly, minutes.

R1, R2, and Rn = The fire endurances of the individual wythes, minutes. Values of Rn0.59 for use in Equation 7-4 are given in Table 722.2.1.2(1). Calculated fire-resistance ratings are shown in Table 722.2.1.2(2).

Related Code Sections


722.2.1.2.1 Fire and Smoke Protection Features, Two or More Wythes
The fire-resistance rating for wall panels consisting of two or more wythes shall be permitted to be determined by the formula: (Equation 7-4 ...
Building Code 2018 of Wyoming > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.2 Concrete Assemblies > 722.2.1 Concrete Walls > 722.2.1.2 Multiwythe Walls > 722.2.1.2.1 Two or More Wythes
722.2.1.2.1 Fire and Smoke Protection Features, Two or More Wythes
The fire-resistance rating for wall panels consisting of two or more wythes shall be permitted to be determined by the formula ...
Building Code 2015 of Wyoming > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.2 Concrete Assemblies > 722.2.1 Concrete Walls > 722.2.1.2 Multiwythe Walls > 722.2.1.2.1 Two or More Wythes
A106.3.2.1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings, Multiwythe Solid Brick
or horizontally. Where the backing consists of two or more wythes, the headers shall extend not less than 4 inches (102 mm) into the most distant wythe ...
Existing Building Code 2015 of Wyoming > A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings > A106 Materials Requirements > A106.3 Existing Unreinforced Masonry > A106.3.2 Lay-Up of Walls > A106.3.2.1 Multiwythe Solid Brick
Help Contact Us Privacy Terms
Code Compare
Code Compare
Highlight differences between any two building codes.
Code Calculators
Code Calculators
Code calculators automatically generate a detailed list of requirements.
Shared projects
Shared projects
Projects provide a dedicated space to collaborate on code research.
Search
Search
Don't miss relevant code. Quickly locate sections across your jurisdiction.
Code diagrams
Code diagrams
Unpack the code through illustrations and descriptions.
Code sheet exports
Code sheet exports
Generate a code sheet that integrates with your drawing set.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING
UpCodes Premium
Leverage the full code compliance platform.
START 2 WEEK FREE TRIAL LEARN MORE