

When spray-applied fireproofing isn’t an option on your project, Rigid Board Fireproofing steps in as the reliable solution.
This versatile, pre-formed fireproofing method offers a durable, clean, and code-compliant alternative for environments where the traditional spray application isn’t practical. Whether you're dealing with tight clearances, freezing temperatures, or sensitive equipment nearby, Alpine’s rigid board installations deliver effective passive fire protection without compromise.
Why Rigid Board Fireproofing?
Designed for Real-World Conditions
Ideal for situations where traditional spraying methods are restricted. It can be mechanically fastened to substrates without the need for extensive surface prep — even over lightly rusted or oily surfaces — and installed in any temperature, with no need for tenting or climate control.
High Performance. Low Maintenance.
Excellent resistance to deflection, impact, and construction-related wear and tear. Rigid boards are built to last through the most demanding site conditions. They also resist mold and fungal growth thanks to their inorganic composition — making them an excellent choice for high-humidity environments.
Code-Compliant and LEED-Friendly
Rigid board systems meet or exceed major fire-resistance standards, including ANSI/UL 263 and ASTM E119. Plus, with high recycled content, they contribute to LEED credits and align with your sustainability goals.
Flexible Configurations
Available in multiple facings and thicknesses, rigid boards can be customized to meet your fire-rating requirements and exact project specifications.
Speed and Quality You Can Count On
Our experienced team installs rigid board systems quickly, cleanly, and with minimal disruption. Whether you're working within a retrofit, abatement, or seismic zone project — or simply need to stay on schedule — Alpine gets it done right, the first time.
Ideal Applications:
Projects with out-of-sequence construction timelines
Tight or obstructed spaces
Cold-weather installations
Retrofit or renovation work
Perimeter walls, moment connections, and abatement zones
High-vibration or high-humidity environments
No spray? No problem.
When spray-applied fireproofing won’t work, Alpine’s Rigid Board Fireproofing delivers strength, speed, and safety without compromise. Let us help you choose the right system for your project’s needs.
Contact us today to schedule a consultation and discover how Alpine can help you stay protected — even when the job conditions are anything but easy.