WEATHERPROOFING
Sill Gasket Seals
CTI sill gaskets create a secure seal between the door and sill, preventing water from entering the building at the threshold. Designed to work in concert with our frames, sills, and weatherstripping, they close a critical gap in the door assembly while also protecting the sill’s internal composite substrate to support a durable, weather-tight entryway. As part of CTI's complete weatherproofing line, sill gaskets help ensure long-term protection against water intrusion in both residential and commercial openings.
1 Size
1 Color Option
10 Year Warranty
Sizes
7 5-8" and 5 5/8"
Colors
Black
Substrate Options
EVA Foam
EVA foam is a lightweight, closed-cell material prized for its flexibility, moisture resistance, and cushioning properties. Its consistent density and water-resistant structure make it well suited to sealing and gasketing applications where a durable, pliable material is needed.
Machining and Customization
CTI components are machined in-house to precise, repeatable tolerances and arrive prepped and ready to install.
Available operations include:
Frequently Asked Questions
What do sill gaskets do?
CTI sill gaskets create a secure seal between the door and sill, preventing water from entering the building at the threshold.
What do sill gaskets work with?
They are designed to work with CTI sills, weatherstripping, and seal pads to close a critical gap in the door assembly.
Where are sill gaskets used?
They help ensure long-term protection against water intrusion in both residential and commercial openings.
Is this product covered by a warranty?
Yes. Every CTI product carries a 10-Year Manufactured Defect Warranty, ensuring it is free from material and workmanship defects under normal use.
Related Products
Weatherstripping
Available in various colors, our weatherstripping provides a sealed barrier to keep out moisture, drafts, and pests.
Corner Seal Pads
Seal pads provide an additional barrier against water infiltration in the bottom corners of the door system, enhancing the overall weatherproofing of each convergence point.
Technical Details and Resources
Each CTI product comes with a 10 Year Manufactured Defect Warranty, ensuring they are free from material and workmanship defects under normal use for the product's lifetime. This commitment to quality offers you peace of mind and guarantees that you are investing in products built to last. You can view our product-specific warranties below.