WindsorONE Protected Exterior Moldings - W1-630 and W1-634 Watertable

WindsorONE’s protected watertable moldings solve the heartwood rot problem that surface treatments can’t touch. Their Tru-Core technology uses a patented vacuum/pressure process that drives five EPA-registered preservatives deep into the wood’s core — where rot typically starts. This 30-year warranty protection matters in Montana’s freeze-thaw cycles that accelerate moisture infiltration at foundation-siding transitions.

These aren’t borate-dipped boards that lose their protection when wet. The preservatives won’t wash out, and the treatment delivers greater thermal stability than PVC trim — crucial when materials face 100-degree temperature swings between Montana summers and winters.

Specifications and Installation Requirements

Both watertable profiles come in 16-foot lengths of sustainably harvested Radiata Pine, pre-primed with three coats of 100% acrylic-latex:

Profile	Nominal Size	Net Dimensions	Length
W1-630	2 x 2	1-7/16” x 2-1/16”	16 ft
W1-634	2 x 3	1-7/16” x 3-1/4”	16 ft (some dealers offer 8 ft)

The taller 3-1/4” profile on the W1-634 provides enhanced architectural visual impact for prominent foundation transitions. Both profiles feature finger-jointed construction for stability and resistance to warping.

Installation isn’t optional reading — failure to prime field cuts or maintain proper clearances may void the warranty. Critical requirements:

• Mandatory: Re-prime all field-cut ends and surfaces with 100% acrylic-latex primer before installation
• Use stainless steel or hot-dipped galvanized nails for exterior use
• Double nail at a maximum of 24 inches on center
• Maintain 6” clearance from finished grade
• Maintain 2” clearance from horizontal surfaces (e.g., roof lines, decks)
• Use 45-degree scarf joints; apply high-quality exterior sealant at all joints and intersections

Avoid over-driving fasteners; nails should be flush with the surface. Store flat, off the ground, and keep dry under cover until use.

Why Tru-Core Beats Alternative Treatments

The preservative system combines five active ingredients: Tebuconazole and Propiconazole for decay fungi control, Permethrin and Imidacloprid for insect/termite control, and IPBC for mold and stain fungi control. This multi-mode protection penetrates where other treatments fail.

Borate-treated pine only protects the surface — Tru-Core penetrates the heartwood where rot often starts. Cedar trim comes with knots and voids that create failure points. WindsorONE delivers consistent quality with no knots or voids, plus factory priming on all surfaces. Cedar rarely carries a 30-year rot warranty.

PVC trim expands and contracts more than wood in temperature extremes. WindsorONE offers greater thermal stability, superior paint adhesion, natural wood appearance, and environmentally renewable material. For Montana’s temperature swings — where materials face thermal stress that coastal climates never see — dimensional stability matters.

Professional Assessment

Contractors praise these moldings for being straight, true, and capable of taking paint well, making them a preferred choice over regular pine for exterior applications like window and door trims. The 30-year warranty against rot, insects, and mold highlights their durability and resistance to environmental factors.

Contractors appreciate the straightness and true manufacturing, which simplifies installation and ensures a clean finish. The moldings are manufactured in the USA, ensuring quality control.

The treatment works with standard tools — compatible with standard pneumatic and hand-driving tools using standard wood nails. Works best with high-quality 100% acrylic-latex paints.

For contractors tired of callbacks on rotted trim, especially at vulnerable foundation transitions where water concentrates, WindsorONE’s deep-penetration protection delivers measurable durability. The Gold Indoor Air Quality rating (low VOC) and safe interior/exterior use matter for Montana’s tight, energy-efficient homes. Just remember those clearances and field-cut priming — warranty coverage depends on proper installation.

Frequently Asked Questions

Q: What’s the actual warranty on WindsorONE watertable moldings, and what voids it?

WindsorONE Protected Exterior Moldings carry a 30-year limited warranty against rot, insects (including termites), and mold. Failure to prime field cuts or maintain proper clearances (6” from grade, 2” from horizontal surfaces) may void the warranty.

Q: What sizes do the WindsorONE watertable profiles come in?

The W1-630 measures 1-7/16” x 2-1/16” (nominal 2x2) and the W1-634 measures 1-7/16” x 3-1/4” (nominal 2x3), both in 16-foot lengths. Some dealers offer the W1-634 in 8-foot lengths.

Q: How does WindsorONE’s Tru-Core treatment actually work?

Tru-Core uses a patented vacuum/pressure process that drives five EPA-registered preservatives deep into the heartwood, not just the surface. The treatment includes Tebuconazole and Propiconazole for decay fungi, Permethrin and Imidacloprid for insects/termites, and IPBC for mold control.

Q: What are the critical installation requirements for WindsorONE watertable?

You must re-prime all field-cut ends with 100% acrylic-latex primer, use stainless steel or hot-dipped galvanized nails, double nail at 24” maximum centers, and maintain 6” clearance from grade and 2” from horizontal surfaces. Use 45-degree scarf joints with exterior sealant at all intersections.

Q: How does WindsorONE compare to PVC trim for temperature stability?

WindsorONE offers greater thermal stability with minimal expansion/contraction compared to PVC trim, plus superior paint adhesion and natural wood appearance. The finger-jointed Radiata Pine construction resists warping better than solid wood alternatives.

Q: Can WindsorONE Protected moldings be used inside?

Yes, WindsorONE Protected Exterior Moldings are safe for both interior and exterior use with a Gold Indoor Air Quality rating (certified low VOC). The non-leaching preservatives won’t wash out or off-gas inside homes.