While the EPS Cement Sandwich Panel is very easy to install for most construction teams, there are still some common mistakes that can lead to poor installation results, wall cracks or reduced long-term performance. One of the most frequently seen mistakes is not leaving the proper expansion gap at the top and bottom of the panels. Many new installers try to push the panels tightly against the floor and ceiling, thinking this will make the wall more stable. But when the building experiences minor structural settlement or temperature changes, the panels have no space to move slightly, which will cause unwanted stress that leads to cracks appearing on the wall surface after a few months. The correct practice is to reserve a 5 to 8 millimeter gap at both ends, and fill the gap with flexible sealant after all panels are fixed in place.

Another common mistake is using the wrong type of adhesive to bond the EPS Cement Sandwich Panel units together. Some construction teams try to use ordinary construction glue that is designed for gypsum boards, which does not have enough bonding strength for the cement-based face boards of the EPS panel. This will lead to the joints between panels becoming loose over time, and even cause the wall to lose structural stability. The correct choice is to use the special polymer-modified mortar or panel adhesive that is recommended by the panel manufacturer, which is formulated to create a permanent strong bond between the cement face boards. Many installers also forget to use the L-shaped steel angles to fix the panels to the main building structure, and only rely on the adhesive to hold the wall in place. This will greatly reduce the impact resistance of the wall, and may cause safety hazards in areas that experience frequent minor earthquakes.

Many people also make mistakes in the subsequent decoration process after installing EPS Cement Sandwich Panel. Some homeowners try to hang very heavy objects such as large air conditioners or heavy water heaters directly on the panel without using special long anchor bolts that penetrate through the entire panel thickness. This will cause the heavy object to fall off the wall after a period of time. The correct method is to use expansion anchor bolts with a length that goes all the way through the panel, or pre-embed wooden blocks or steel keels inside the panel during installation for heavy load hanging points. If you avoid these common mistakes, an EPS Cement Sandwich Panel wall can remain perfectly stable and crack-free for more than 50 years.