Vertical Panelseam® T-Mold
EXPANSION & CONTRACTION: Siding panels will expand and contract due to changes in temperature. Allow a 1/8"gap between panels and trim.
FASTENERS: Stainless steel fasteners are recommended when installing Tamlyn Xtreme Trim™.
FASTENING: Do not fasten edges of panels until trims are in place. Fasten panel at center and work outward. Fasteners should be staggered on opposite panel edges.
CUTTING: Use a non ferrous carbide miter saw blade when cutting Tamlyn Xtreme Trim™
PAINTING: Use Direct to Metal (DTM) paint with Xtreme Trim™. Use light or pastel paint colors only on Tamlyn PVC or Sherwin-Williams Vinyl Safe™ Paint. Use of dark color paint will cause deformation. Tamlyn vinyl products are not warranted if painted with dark color paint. See Tamlyn Trim Painting Guide
Please follow siding manufacturer's best practice application when installing any Tamlyn accessory. Xtreme Trim™ profiles do not form a moisture management system, the architect and builder are responsible for designing and installing a code compliant building envelope.


TM - EXTRUDED PVC, VCTM - EXTRUDED ALUMINUM
Click here to download PDF document
Design Features:
US Patent #6,032,426, US Trademark #2,358,771
Xtreme Trim™ Vertical Panelseam® T-Mold serves as an expansion joint between panels. Works with all panel profiles/ finishes. Xtreme Trim™ Vertical Panelseam® T-Mold is an aesthetically pleasing product for your home or project.
Do not install Vertical Panelseam® T-Mold horizontally. Use Xtreme Trim™ Zeam® Z Bar or Xtreme Trim™ Horizontal Stucco Bead. Adjustable Reveal for other horizontal installation.
| ITEM ID | LENGTH |
|---|---|
| TM112 (PVC) | 8' & 10' |
| TM143 (PVC) | 8' & 10' |
| VCTM258 (ALUMINUM) | 8' |
Material:
TM - Extruded rigid PVC, industry-standard, durable, chemically resistant product designed for outdoor weatherability.
VCTM - Custom die-extruded from heavy-duty, 6063 T-5 extruded aluminum alloy with proprietary coating that protects against harsh weather conditions and allows for paint adhesion.
Available in standard primed (ready-to-paint), color match, and anodized finishes. Unless otherwise specified all Xtreme Trim™ products are provided in primed, ready-to-paint finish.
Available in most popular James Hardie® Siding and Soffit colors with ColorPlus® technology. Specify color code using Color Palette.

