Hi @jws! Our security cameras, such as the Stick Up Cam, are designed to be securely mounted with hardware for optimal operation, and to avoid theft when mounted outdoors. With that being said, we understand that not all environments allow this, and diy solutions might sometimes be needed. As you mentioned the Camera’s mounting surface not being adequate for adhesive mounting, try finding a surface material that will. Once you do, see if you can use the hardware to securely mount the Camera base to this piece of material (wood, plastic, etc), then stick that to your exterior wall.
Keep in mind, we do not advise altering or making any modifications to your Camera itself, and, although you seem to be using strong tape, please also consider the risk of the Camera falling. I hope this helps! 