Can Roaches Climb Walls. The roaches used two different strategies to climb the wall, one of which involved ramming the wall with. When you encounter cockroaches, you're not only likely to find them scampering across the floor or a countertop but also possibly climbing a wall or crawling across a ceiling.
Though much has been written about cockroach's supposed invincibility, they they'll enter a home in any way they can, from finding holes in exterior walls to following if your window screens have tears in them, a cockroach might be able to climb through it.
Often roaches fly to escape a threat. What rooms you are seeing them climb up on walls might be a greater concern, bathrooms and kitchen are not uncommon. Researchers in south korea have developed a drone that is capable of climbing walls. First, let's clear something up about recent reports of a live cockroach pulled from a woman's skull.