ChemTech limited warranty
ChemTech limited
warranty.
This is the ChemTech limited warranty (May, 2021 Final) for treatment marketed as TW2200, TW 3300, and TW 4400. Conditions and exclusions apply.
What we warranty
The written terms,
one card at a time.
These cards quote the ChemTech limited warranty (May, 2021 Final). It names TW2200, TW 3300, and TW 4400. Conditions and exclusions apply. Read the full warranty
Covered and elevated
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.
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.
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.
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.
Specified ASTM E84 Class A flame spread
CTH warrants for a period of up to 20 years that Spruce, Southern Yellow Pine and Douglass Fir dimensional lumber, when treated with TW4400, will meet or exceed relevant ASTM Standards (E-84) with a Class A flame spread rating as required by the International Building Code and International Residential Code. CTH treated products are not warranted in any way against destruction from fire.
What this treatment protects against
Protection built into
4400.
Warranty coverage and technical performance are related, but they are not the same thing. This is the documented protection story for the treated lumber within the approved product, application, and exposure scope.
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.Explore this protection ↗
Fungal-decay resistance
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.Explore this protection ↗
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.Explore this protection ↗
Extended fire-retardant performance
FRT lumber with extended ASTM E84 and ASTM E2768 performance within the current evaluated scope
The documented fire-retardant system uses extended surface-burning evaluation; any rated wall claim belongs to the complete listed assembly.Explore this protection ↗What coverage follows
The written warranty
controls the details.
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.
Read the full ChemTech limited warranty ↗- 01The Warranty Period begins on the date of purchase
- 02Extended to the first owner after the builder or general contractor purchases the material, and non-transferrable
- 03Written notice within thirty (30) days
- 04Conditions and exclusions apply