• 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
    Architects
    General Contractors
    General Contractors
    Building Official & Plans Examiners
    Building Official & Plans Examiners
    Inspectors
    Inspectors
    Owners
    Owners
    Subcontractors
    Subcontractors
    Code Consultants
    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
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

2404.2 Sloped Glass

Building Code 2018 of Illinois > 24 Glass and Glazing > 2404 Wind, Snow, Seismic and Dead Loads on Glass > 2404.2 Sloped Glass
JUMP TO FULL CODE CHAPTER
Glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, sunrooms, sloped roofs and other exterior applications shall be designed to resist the most critical combinations of loads determined by Equations 24-2, 24-3 and 24-4.

Fg = 0.6Wo — D (Equation 24-2)

Fg = 0.6Wi + D + 0.5 S (Equation 24-3)

Fg = 0.3 Wi + D + S (Equation 24-4)

where:
D = Glass dead load psf (kN/m2).
For glass sloped 30 degrees (0.52 rad) or less from horizontal, = 13 tg (For SI: 0.0245 tg).
For glass sloped more than 30 degrees (0.52 rad) from horizontal, = 13 tg cos θ (For SI: 0.0245 tg cos θ).
Fg = Total load, psf (kN/m2) on glass.
S = Snow load, psf (kN/m2) as determined in Section 1608.
tg = Total glass thickness, inches (mm) of glass panes and plies.
Wi = Inward wind force, psf (kN/m2) due to basic design wind speed, V, as calculated in Section 1609.
Wo = Outward wind force, psf (kN/m2) due to basic design wind speed, V, as calculated in Section 1609.
θ = Angle of slope from horizontal.
Exception: The performance grade rating of unit skylights and tubular daylighting devices shall be determined in accordance with Section 2405.5.

The design of sloped glazing shall be based on Equation 24-5.

Fg ≤ Fga (Equation 24-5)
where:
Fg = Total load on the glass as determined by Equations 24-2, 24-3 and 24-4.
Fga = Short duration load resistance of the glass as determined in accordance with ASTM E1300 for Equations 24-2 and 24-3; or the long duration load resistance of the glass as determined in accordance with ASTM E1300 for Equation 24-4.

Related Code Sections


2404.2 Glass and Glazing, Sloped Glass
Glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, sunrooms, sloped roofs and other exterior applications shall be designed ...
Building Code 2018 of Illinois > 24 Glass and Glazing > 2404 Wind, Snow, Seismic and Dead Loads on Glass > 2404.2 Sloped Glass
2404.2 Glass and Glazing, Sloped Glass
Glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, sunrooms , sloped roofs and other exterior applications shall be designed ...
Building Code 2021 of Illinois > 24 Glass and Glazing > 2404 Wind, Snow, Seismic and Dead Loads on Glass > 2404.2 Sloped Glass
Section 2405 Glass and Glazing, Sloped Glazing and Skylights
This section applies to the installation of glass and other transparent, translucent or opaque glazing material installed at a slope more than 15 ...
Building Code 2018 of Illinois > 24 Glass and Glazing > 2405 Sloped Glazing and Skylights
Section 2405 Glass and Glazing, Sloped Glazing and Skylights
This section applies to the installation of glass and other transparent, translucent or opaque glazing material installed at a slope of more ...
Building Code 2021 of Illinois > 24 Glass and Glazing > 2405 Sloped Glazing and Skylights
1709.6 Special Inspections and Tests, Skylights and Sloped Glazing
Skylights and sloped glazing shall comply with the requirements of Chapter 24 ...
Building Code 2021 of Illinois > 17 Special Inspections and Tests > 1709 Preconstruction Load Tests > 1709.6 Skylights and Sloped Glazing
Help Contact Us Privacy Terms
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 Compare
Code Compare
Highlight differences between any two building codes.
Code Calculators
Code Calculators
Code calculators automatically generate a detailed list of requirements.
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.
VISIT PRICING
UpCodes Premium
Leverage the full code compliance platform.
START 2 WEEK FREE TRIAL PRICING