Fire Retardant Wood Treatments

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Beautiful Class A Wood Siding

Montana Timber Products offers industry-leading flame retardant solutions ensuring compliance with stringent fire codes while preserving the beauty of prefinished natural wood. Whether you’re building in a wildfire-prone zone with strict requirements or seeking enhanced peace-of-mind fire protection, we have the solution for you.

Flame Retardant Treatment Options

SaferWood Thermex-FR™ (Fireline)FX LumberGuard XT
Fire RatingClass A (ASTM E84 – 30-min test)Class A (ASTM E84)
ClassificationFRTW (Fire Retardant Treated Wood)Fire Retardant Coating
PenetrationPressure-impregnated
entire substrate
Surface
WUI ComplianceYesNo
Standards MetMeets or exceeds IBC 2303.2, IWUIC, Cal-Fire BML #2520-1450:0502Intertek CCRR-1044

Both treatments available across all of our prefinished products.  Fire treatments are first applied to our lumber followed by our factory finish.

SaferWood Thermex-FR™ (Fireline):  World-class FRTW

SaferWood Thermex-FR™ stands out as the superior choice for fire protection:

• Advanced Fire Resistance: Exceeds WUI standards with a 30-minute ASTM E84 test, compared to the standard 10-minute test.
• Permanent Protection: Pressure-impregnated treatment penetrates the entire substrate, ensuring lifetime durability.
• Compliance Excellence: Fully meets IBC 2303.2 and IWUIC standards, making it ideal for high-risk wildfire zones.
• Cal-Fire Approved: Listed under Cal-Fire Building Materials Listing #2520-1450:0502.

THERMEX-FR (FIRELINE)3rd Party Evaluation Report

FX LumberGuard XT: A Cost-Effective Option

FX LumberGuard XT is a spray-applied fire-resistant coating that provides Class A fire protection for projects where WUI compliance is not required. It is a great option for:

• Faster turnaround times
• Lower-cost
• Great for interior applications

FX LumberGuard XT3rd Party Evaluation Report

FREE: Home Hardening Guide

We have put together a free home hardening checklist full of tips and best practices to help guide you through the process of hardening your home from the threat of wildfires.

What is WUI?

The Wildland Urban Interface is the zone of transition between unoccupied land and human development. It is the line, area or zone where structures and other human development meet or intermingle with undeveloped wildland or vegetative fuels. The WUI is not a place, but a set of conditions that can exist in nearly every state in the country.

Click here for more information on Wildland Urban Interface.

The two solutions MTP has developed have been designed to meet state and international guidelines on fire protection, without sacrificing the integrity of genuine wood siding on nature-adjacent structures. 

Learn more about your local building codes for WUI (Wildland Urban Interface) compliance.

Why Work With Montana Timber Products?

With over a decade of experience, we are experts in fire-retardant wood solutions that balance safety and aesthetics. Our knowledgeable sales team provides personalized guidance on product compatibility, color selection, and code compliance to ensure your project’s success. Not all stains/coatings are compatible with fire retardant treated lumber. Our knowledgeable team can guide you through the process of product compatibility and color selection to help you achieve both protection and a beautiful finish.

Insurance rates are increasing and in some areas, coverage can be difficult to achieve. There are a variety of methods that can be used either in isolation or together to provide maximum protection for your property and we can be an expert resource for you to navigate your needs.

Contact Us Today

Ready to learn more about how our fire treatments can protect your home or project? Reach out to our expert sales team for tailored advice and pricing options. Reach out to our service team to learn more about pricing options related to the additional charges for fire retardant treatments.

Montana Timber Products is committed to helping you navigate the changing landscape of property insurance and wildfire safety with trusted solutions like SaferWood Thermex-FR™ and FX LumberGuard XT.

Fire Treatment Options FAQ