How to Install Chelis Fiber Cement Boards

Chelis fiber cement boards are typically installed in two ways: a clip-on system, or lap siding with nails.

The clip-on installation offers several clear advantages.

It is faster to build, which shortens the overall project timeline. Because it uses prefabricated components, there is no need for heavy on-site bonding or rework, and each board can often be installed in under 15 minutes.

It is also structurally stable and performs well in harsh climates, especially in regions with strong winds, heavy snow, or extreme temperature changes.

Since it relies on mechanical fastening rather than adhesive alone, it reduces the risk of detachment in cold weather.

In addition, it is a cleaner and more environmentally friendly solution, avoiding adhesive-related indoor pollution.

And when maintenance is needed, individual boards can be removed and replaced more easily without dismantling the whole wall.

That said, clip-on systems require a high level of precision in the supporting structure. If the keel is uneven, the finished surface may look wavy.

The initial cost is also higher because it requires metal framing, accessories, and a more specialized installation team.

Sealing at the joints must be handled carefully as well, especially in wet or cold climates.

For lap siding, the installation method is usually divided into keel and non-keel fixing.

Keel installation offers better flatness, higher stability, and stronger adaptability to uneven walls, but it is more complex and costly.

Non-keel installation is simpler and more economical, but it only works well on very flat surfaces and has more limitations.