Why are concealed surface-mount contacts preferred for certain window types?

Concealed surface-mount contacts are preferred for certain window types primarily because recess mounting can pose challenges that may lead to damaging the glass. When installing these contacts, if the installation requires a recess into the frame or the glass itself, there is a risk that the cutting or drilling needed for this type of installation could weaken the glass or interfere with its integrity. Choosing concealed surface-mount contacts avoids these risks, allowing for a more secure and damage-free installation process. Such contacts can be mounted on the surface of the window frame without requiring invasive procedures, making them an ideal choice for preserving the appearance and integrity of the window while ensuring that the security system functions effectively.

The other considerations, while relevant in different contexts, do not directly address the specific challenges associated with certain types of windows and the installation process.