Treated to help inhibit mold on the lumber surface, and to resist fungal decay and wood-destroying insects, including Formosan termites. Adds water repellency and color for documented above-ground exterior uses.
Outdoor protection, with the grain and character of real wood.
Exterior wood needs more than an interior preservative story. 2200EX adds a water-repellent component and exterior-focused durability while keeping the warm, natural appearance that makes wood worth specifying in the first place.
Explore 2200EX
The details that matter.
Applications, protection, certifications and warranty options for 2200EX. Each section opens on this page.
RezWood™ 2200EX extends mold, decay, and subterranean-termite protection into documented above-ground exterior uses, adding water-repellent and color components for wood that will face the weather.
01
Exterior performance built in
2200EX combines preservative ingredients with a pre-stain concentrate and water-repellent additive, creating a treatment package designed for above-ground exterior exposure.
02
A more finished appearance
The treatment is designed to support a warm, consistent exterior color while allowing the grain and texture of the lumber to remain visible. Available RezWood™ colors depend on the Texas Wood Tech program selected.
03
Know the UC3B limit
The current report limits UC3B use to qualifying deck joists and beams under specific installation requirements. It is not a ground-contact treatment, and large timber beams are not currently offered by Texas Wood Tech.
Common applications
Vertical exterior siding and trimFence pickets installed verticallyUC3A millwork with intermittent weather exposureProtected exterior framingUC3B deck joists and beams with required top-edge joist tapeAbove-ground exterior lumber within the current report
What we protect againstProduct-specific protection
Protection built into 2200EX.
The protection below applies to the treated lumber—not every material in the building—and only within the selected product's documented scope.
01
Mold-growth inhibition
Helps inhibit mold growth on the treated lumber. Moisture management, drying, and jobsite housekeeping still matter. The public technical evaluation documents mold-growth-inhibition testing using ASTM D3273 and ASTM D5590 methods.
Resists decay fungi within the documented exposure conditions. It does not replace flashing, drainage, ventilation, or maintenance. The public technical evaluation documents fungal-decay resistance for the approved lumber, application, and above-ground exposure scope.
Subterranean-termite resistance, including Formosan termites
Resists subterranean termites, including Formosan termites, within the current product scope. Untreated wood and cellulose remain outside the protection package. The public technical evaluation documents subterranean-termite resistance for eligible treated lumber within the approved application and exposure scope.
Adds exterior-focused water repellency for approved above-ground applications. It is not a ground-contact claim or a substitute for proper detailing. The documented 2200EX scope pairs preservative performance with exterior-focused water repellency under the specified installation and exposure conditions.
Important context
Pressure-treated products remain available for ground-contact and freshwater conditions beyond the current 2200EX scope. RezWood 2200EX is intended for selected above-ground exterior work where the documented preservative package, water repellency, and available color program fit the application.
TestingCertifications + fit
Public technical record
Testing behind the treatment.
Review the standards, certifications and application limits for the selected lumber and project.
01
Third-party evaluated exterior scope
Independent technical evaluation documents the approved 2200EX applications, substrates, exposure conditions, and installation requirements.
02
ASTM + AWPA test framework
The technical documentation references applicable ASTM and AWPA methods for preservative performance, material behavior, and exterior-use qualification.
03
IBC + IRC application documentation
Approved applications are documented for use with the applicable building-code requirements and project-specific approval.
04
Defined above-ground exposures
Evaluated for UC1, UC2, UC3A, and a limited UC3B path for qualifying applications. It is not represented as a ground-contact treatment.
Important context
Technical fit: UC1, UC2, UC3A, and UC3B* conditions. RezWood™ 2200EX is currently offered through Texas Wood Tech in common dimensional lumber sizes. General exterior applications must follow the documented vertical UC3A conditions; UC3B is limited to qualifying deck joists and beams with the required top-edge joist tape. Ground-contact applications are excluded.
Codes and evaluation reportsTechnical clarity
Know exactly what you are specifying.
Current RezWood™ availability
RezWood™ 2200EX is currently offered through Texas Wood Tech in common dimensional lumber sizes. General exterior applications must follow the documented vertical UC3A conditions; UC3B is limited to qualifying deck joists and beams with the required top-edge joist tape. Ground-contact applications are excluded.
Fire role: No fire classification claimed. Exposure: UC1, UC2, UC3A, and UC3B* conditions.
Water-based, mineral-centered protection
Choose fasteners for the treatment, exposure, building code and connector manufacturer’s guidance. A separate low-emissions certification is not claimed here for 2200EX.
Cutting any lumber creates wood dust. Use dust control, eye protection and job-specific PPE. Never burn treated wood; confirm local reuse and disposal requirements.
DocumentsReports and warranty text
The written record for TW2200 EX.
Warranty terms, evaluation support, and protection topics stay on their existing pages. Figures in those documents are unchanged.
CTH will warrant the treatment of wood components delivered and stored at construction sites for (4) four months, subject to the treated wood being stored off the ground, covered in its protective cover and safeguarded from accumulation of snow or standing water or water runoff.
02
Vertical framing · Up to 6 months · Unprotected framed state
CTH warrants the treatment of wood components of a covered structure for up to six (6) months in an unprotected vertical framed state, subject to proper documentation indicating completion of structure exterior wrapping or dry-in process.
03
Cured film surface · 5 years · Mold
The CTH Wood Treated Component is warranted to inhibit mold fungus growth/mycotoxin production on the cured surface of the film for 5 years.
04
Covered interior structures · 10 years · Decay and wood-ingesting insects
The CTH Wood Treated Component is warranted against wood-rot fungi decay and wood ingesting insects (including subterranean or Formosan termites) or carpenter ants, due to the failure of CTH WoodSurfaceFilm™ treatment while owned for 10 years. Such failure must render the CTH Wood Treated Component incapable of performing its intended purpose.
Important context
The Warranty Period begins on the date of purchase. This warranty is extended to the first owner after the original builder/general contractor purchases the material and is non-transferrable. Written notice is required within thirty (30) days. Conditions and exclusions apply.
RezWood™ 2200EX can be ordered with an exterior stain treatment for qualifying outdoor wood applications. The program combines the documented 2200EX protection package with stain colors selected to complement the natural grain and character of the lumber.
Designed for qualifying above-ground outdoor wood applications
Multiple warm wood-tone color options
Visible grain and natural lumber variation remain part of the finish
Color, species, exposure, sealing, and maintenance requirements must be confirmed when ordering
2200EX is designed for qualifying above-ground outdoor applications, with the wood grain still visible through the selected stain treatment.
Swipe to view all six colors →Color showcase: Clove Brown, Dark Roast, Autumn Tone, Redwood Heart, Cedar Tone, and Redwood. Actual appearance varies by wood type, age, grain, starting color, application, exposure, and lighting.
Third-party evaluated
Testing and code documentation behind the treatment.
The current technical evaluation references applicable ASTM and AWPA testing and documents IBC/IRC compliance for approved 2200EX applications. Evaluated use categories include UC1, UC2, UC3A, and UC3B* conditions subject to the exact product, substrate, installation, and report requirements.
