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Roof Project Calculators: Snow Retention, Solar Roof Design, Load Tests and More

From snow retention to solar layout, our expert-crafted calculators and design tools deliver accurate, dependable results for every roof design project.
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Solar Tools

Get accurate, roof-ready solar designs with our Solar Calculator and Advanced Solar Calculator. Both tools streamline planning for residential and commercial projects, helping you quickly determine layout, equipment needs and system compatibility. Whether you're working with a rail-less or rail-based setup, these calculators deliver fast, dependable results for any metal roofing application.

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Solar Calculator

Easily design your solar system, confirm compatibility and download a complete Bill of Materials for fast, accurate installation.

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Advanced Solar Calculator

Our Advanced Solar Calculator provides an analysis of the attachment needs on more challenging solar projects.

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Snow Load Calculator

The Snow Load Calculator is a stand-alone tool that uses ground snow loads, roof dimensions and building specifics to determine exactly what your project requires.

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Snow Retention Calculator

Calculate snow guards, determine attachment points, generate a complete bill of materials and obtain an optional P.E. wet stamp.

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Snow Retention Tools

Our Snow Load Calculator and Snow Retention Calculator are user-friendly tools that simplify the engineering of snow retention systems for any site-specific roof. Together, they create a streamlined workflow that guides you from initial planning through final installation with clarity, accuracy and confidence.

Frequently Asked Questions

Yes, a free account allows you to save projects, access design tools and retrieve past calculations.

Yes, it’s web-based and optimized for desktops, tablets and smartphones.

The calculator supports standing seam, exposed-fastened and corrugated metal roof profiles compatible with S-5! products.

Yes, it generates a complete bill of materials based on your system design.

Contact S-5! technical support at [email protected] for guidance on using the calculators.

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Load Test Tables

Access verified data on the holding strength and performance of S-5! clamps, brackets and snow retention components across hundreds of roof profiles and materials.

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Testing Protocols

S‑5! load testing uses an ISO 17025‑accredited lab to perform rigorous tensile tests, ensuring verified performance and real‑world holding strength data.