3300
Coming soon · not yet available to order
Explore documented surface-burning performance for applications that do not require FRTW. A Class A result alone is not FRTW qualification.
See 3300 ↗See its warranty options ↗
™Fire protection
Choose by the specification.
Surface-burning performance and fire-retardant-treated wood are not interchangeable. Start with what the project requires.
See matching treatments ↓
Residential framing photo · treatment color visualizedFraming photograph with treatment-color visualization. Not a fire test or a guarantee of building performance.
3300 or 4400? The requirement decides.
3300 offers documented surface-burning performance when the specification does not require FRTW. 4400 is the system to evaluate for documented fire-retardant-treated wood applications, subject to the listed substrate, assembly and project approval.
- Confirm whether the plans require FRTW, a surface-burning classification or a rated assembly.
- Match species, grade, dimensions and installation to current documentation.
- Check exposure, finishing and design-value requirements before purchase.
What supports the protection?
ASTM E84 evaluates surface-burning behavior. The extended evaluation used for documented FRTW applications is a different qualification from a standard Class A result. A wall’s fire-resistance rating belongs to the complete listed assembly, not an individual stud.
What are the limits?
Neither treatment makes wood noncombustible or fireproof. Specified fire-performance warranty coverage is not insurance against loss or damage from a fire. Temporary construction exposure is not the same as exterior weathering qualification.
How do warranties fit in?
Coverage depends on the selected treatment, eligible wood, project records and complete written terms. A warranty is a defined remedy, not a promise that damage can never happen.
Choose your system
Two systems. Different requirements.
4400
Start here when the plans require fire-retardant-treated wood. Confirm the listed wood, exposure, design and approval requirements.
See 4400 ↗See its warranty options ↗