How is the Under Deck Ceiling Installed?
First, a structurally engineered load bearing gutter system is attached using #8 galvanized screws and 3/16 “Tapcon” fasteners to the inside perimeter of the under deck ceiling area being covered. The clean-looking streamlined gutter system is attached along the house, the sides, and front of the deck. Since we don’t attach our system to the floor joists of the deck, we often must install wood to the sides and front of the deck under the rim joist. This gives us an adequate area to attach the gutter system below the existing deck’s floor joists and provides plenty of air flow and ventilation for quick drying. Gutter bracket supports are installed 24” on center when required.
No part of this system attaches to the underside of the deck. All installation work is done below the existing deck and deck boards. We maintain a 4 inch to 7 inch space between the bottom of the deck and the top of our ceiling. This assures that our under deck ceiling panels and drainage system will not cause any harm to the deck above.
After sealing the top edge of the gutter system, preventing water to get behind it, then we begin installation of the ceiling panels. Starting at one end, our installers begin placing the interlocking pre-cut panels on top of the gutter system one after the other. Once all ceiling panels are in, installers clean up the job site. Your beautiful, usable outdoor living area is now ready to be fully enjoyed all year round.
Advantages of UnderCover Systems vs Other Underdecking
Our UnderCover Systems® is the only patented, engineered under deck ceiling and under deck drainage system. Our thoroughly researched underdecking system is made with the goal to keep your deck dry effectively and aesthetically so that you can enjoy your outdoor living space year round. We offer an outstanding guarantee backed by our state-of-the-art manufacturing equipment and process, executing superior quality to each custom UnderCover Systems produced. There are many competitors that try to duplicate our product, but none of them come close to our superior design. Every undercover project receives our lifetime guarantee. You will be so thrilled with your new underdeck, and that is a promise!
Benefits:
There are numerous benefits to choosing UnderCover Systems as your under deck ceiling and under deck gutter system for your new or existing deck or patio cover. These benefits include:
- Lifetime Warranty
- Custom-Made to your Home’s design
- Superior Quality
- Increases Home Appraisal Value
- Protects Furniture Under Your Deck or Patio Cover
- Usable Outdoor Living Space
- Attractive Finishing for an Aesthetic Retreat
- Easy Maintenance
- Award Winning & Excellent Customer Service

Our UnderCover System vs An Aluminum Under Decking
Built for Long-Term Performance
Why We Use Steel Instead of Aluminum
The space beneath a deck is exposed to moisture, runoff, treated lumber, fasteners, flashing, and changing outdoor conditions. That is why material choice matters. UnderCover Systems uses 22-gauge hot-dipped galvanized steel instead of lightweight aluminum products to create a stronger, longer-lasting under deck ceiling system.

