Snow Load Analysis to ASCE 7-22

Calculate balanced and unbalanced snow loads on roofs using ASCE 7-22. Automatically accounts for exposure, thermal conditions, risk category, and roof geometry to meet IBC design requirements.

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Overview

About the Calculator

The Snow Load Calculator (ASCE 7-22) simplifies the process of determining design snow loads for roofs in compliance with ASCE 7-22 and the International Building Code (IBC). It calculates balanced and unbalanced loads based on location, exposure, roof slope, and occupancy risk category, helping engineers verify roof structural adequacy under snow loading conditions. This tool supports residential, commercial, and industrial projects across the U.S., ensuring quick and reliable compliance with the latest ASCE provisions.

Fully compliant with ASCE 7-22 and IBC 2024

Performs snow load calculations in accordance with the latest US building standards for structural design, including risk categories and regional snow load maps.

Automatic load type classification

Distinguishes between balanced and unbalanced snow loads, helping engineers design for both uniform and drifted snow accumulation on various roof geometries.

Customizable roof and exposure settings

Define roof slope, thermal condition, exposure factor, and roof shape to simulate realistic site-specific loading conditions.

Integrated importance and risk factors

Automatically applies risk category multipliers (I) and exposure coefficients (Ce) based on occupancy and environmental exposure.

Clear, code-referenced results

Outputs all intermediate steps, such as ground snow load (pg), flat roof snow load (pf), and drift loads, with direct references to ASCE 7-22 Chapter 7 equations.

Intuitive workflow for multiple roof types

Supports flat, gable, and monoslope roof configurations, allowing engineers to quickly compare load cases and ensure conservative design.

Presets

Ready-Made Configuration to Save You Time

A preset is a ready-made configuration that instantly sets up a structural calculation with commonly used parameters, materials, and load scenarios. Each preset is tailored to specific use cases like floor joists, roof girders, or deck beams.

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How It Works

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Tired of complex calculations? ClearCalcs Calculator Library keeps it simple, secure and code-compliant – so you can calculate with confidence.

Save time with ready-to-use templates for wood, steel, and concrete

ClearCalcs offers an extensive library of easy-to-use calculators for beams, columns, and footings, designed to make structural calculations simpler and faster.

Choose from a wide range of pre-configured beam and column options, complete with automatic member sizing, so you can quickly reach reliable designs and reduce rework.

Beams

Columns

Foundations

Walls

Loads

Dynamically track your load paths from roof to foundation

No need to copy and paste reactions between calculations! If the top calculator's reactions change, the loads being inherited onto the lower calculator will update automatically. This includes all loads such as dead, live, snow, seismic, and wind.

Submit professional reports for permit review

ClearCalcs is not only easy to use, but also easy to check! All calculations follow an easy to understand traffic light check system, with multiple levels of detail available giving you the choice of printing every step of the calculation and all code and standard references, or simply a compact, one-page print out.

Report heading includes your project name and address

Easily upload your organization logo for a professional report

Use custom PDF upload to merge additional documents to your structural calculations

Download a sample report

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