SCIPHYR (pronounced Zephyr) is a comprehensive wind analysis solution developed by the Steel Construction Institute for engineers working across the UK and Ireland. Whether you need a simple browser-based tool or powerful API integration, SCIPHYR delivers fast and accurate wind pressure results tailored to your workflow.
Select the option that best fits your workflow and technical requirements. All SCIPHYR products use the same trusted calculation engine developed by SCI and support both BS EN 1991-1-4 (including the UK National Annex) and BS 6399-2.
A powerful, user-friendly web application that requires no installation or downloads. Perfect for engineers who want quick, reliable peak velocity pressure results without technical complexity.
Best For:
Individual engineers, teams, and consultants who need immediate access to wind analysis without IT infrastructure or API integration.
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A robust RESTful API that integrates directly into your own software to calculate peak velocity pressures and relevant wind loading data for any UK or Ireland site location.
Best For:
Software developers and engineering firms developing custom software tools or automating wind pressure calculations within existing systems.
Features:

An add-on API that uses SCIPHYR API outputs to calculate wind loading on walls and roofs of buildings. Complete the wind analysis workflow from site conditions to structural loads.
Best For:
Software developers and engineering firms requiring complete wind analysis automation from peak velocity pressures to building-specific wall and roof loading calculations.
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