Window Sill Moulding
Window Sill Moulding is designed to provide a clean, finished appearance at the base of window openings. Crafted from durable cellular PVC, it offers the classic look of wood without the associated maintenance. Its design helps to direct water away from the window, preventing moisture damage and enhancing the longevity of the window installation.
Disclaimer: Colors shown online and in printed materials may vary from actual colors. Please review color fan decks or real product samples before making a final color selection.
About Window Sill Moulding
Features
- Installs easily with fasteners and glue
- Made from Cellular PVC that won’t rot or attract termites
- Low-maintenance and resistant to splitting and cracking
- Paintable with acrylic latex paint; use a vinyl-safe paint for darker colors
- Absorbs virtually no water for lasting durability
- Made in the USA
Resource Library
Explore our library of educational resources—including product literature, installation guidelines, technical documents, and more—to help guide every stage of your project.
FAQs
No Splitting, warping, cracking, checking. Resists extreme weather including freeze/thaws and humidity.
Can be milled without worry. Every piece is straight, free of defects.
Cellular PVC is a solid extrusion that’s waterproof, insect-proof, and easy to use. The term “cellular PVC” refers to a process and type of polyvinyl chloride that has microscopic air cells inside. The process makes this type of PVC less dense and more flexible than the PVC you see in plumbing pipes, making it more suited to trim applications.
If dirty, clean with a soft brush and mild household cleaner. Stubborn stains may be removed with denatured alcohol
Yes. Cellular PVC is a thermoplastic polymer, which means it becomes pliable or bendable when exposed to certain temperatures, returning to a solid state when cool. Because of its nature, some cellular PVC profiles can be reheated and reformed; however, variations in batches, profile geometry, and density or weight of the profile mean some experimentation will be required to perfect this skill.
For best results, don’t bend any cellular PVC trim greater than 6” wide.
