What is a common requirement for structures adjacent to firewalls in R-5 zones?

In R-5 zones, which typically apply to residential buildings, structures adjacent to firewalls must align with specific height limits established for the firewall. This requirement is crucial for ensuring adequate fire safety and maintaining structural integrity in case of a fire. Aligning with the height limits helps to prevent the spread of fire between buildings, thereby protecting both structures and their occupants.

The height limits set for firewalls are often based on local building codes, which detail how tall firewalls can be and how adjacent structures should be designed to ensure effective fire resistance and safety. This alignment ensures that the firewall remains functional and can perform its intended role without any obstructions that could compromise its effectiveness.

Other options may suggest distance or the presence of windows. In R-5 zoning, maintaining certain heights in relation to the firewall is a more critical aspect of fire safety compliance, making it the most relevant answer in this context.