What should be done to pipes when passing under or through walls?

When pipes pass under or through walls, it is essential to protect them from breakage due to potential movement, pressure changes, or environmental conditions. Walls may shift over time, and any impact from external sources or internal pressure can lead to fractures or leaks in the piping system. Ensuring that the pipes are adequately protected minimizes the risk of damage, which can save on repair costs and prevent possible water damage in the surrounding areas.

Other considerations, such as insulating pipes, while important in specific scenarios (like preventing condensation or freezing), do not specifically address the need for protecting the integrity of the pipes as they transition through walls. Similarly, while reinforcing pipes might be relevant in some structural applications, it does not directly tackle the vulnerabilities inherent in passing through or under walls. Painting pipes could be relevant for aesthetic reasons or corrosion resistance, but it does not provide any actual mechanical protection against breakage. Thus, strategically safeguarding the pipes from breakage is the primary concern when they navigate through structural elements.