Westlake Royal Building Products - Siding Siding & Exterior Trim - Siding

Interlocking Systems: Many of their siding panels feature advanced interlocking mechanisms. This design ensures a secure fit, preventing water penetration and creating a seamless, clean appearance. It also contributes to the panel's structural integrity and resistance to wind uplift.
Reinforced Edges: Specific product lines incorporate reinforced edges, providing increased rigidity and impact resistance. This feature helps to prevent cracking and warping, especially in areas prone to extreme weather conditions.
Deep Profile Designs: To achieve a more authentic and dimensional look, Westlake Royal often employs deep profile designs. This construction mimics the grain and shadow lines of traditional wood siding, adding depth and character to the building's exterior.
Color-Through Technology: A significant construction element is the integration of color-through technology. The color is embedded throughout the vinyl or polymer material, meaning that scratches or chips are less noticeable as the underlying material is the same color.
Drainage Channels: Certain siding products are designed with integrated drainage channels to facilitate the escape of moisture, further protecting the building's structure from water damage.

Westlake Royal Building Products

Cellular Composite Siding

Subcategory: Siding

Material: Composite, PVC

Siding Type: Clapboard/Lap

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Product Summary

Celect® Cellular Composite Siding by Westlake Royal Building Products offers the natural look of wood with enhanced durability and low maintenance. It features a realistic woodgrain texture, a fade-resistant Kynar Aquatec® finish, and a proprietary design for tight seams. The cellular composite construction resists rot, cracking, and splitting, and is available in a variety of colors or ready-to-paint options.

It comes in multiple profiles—including Capboard, Shake, Board & Batten, and V-Groove—and is made from recyclable materials that improve energy efficiency. All products are backed by a limited lifetime warranty and a 25-year color protection warranty.