Which components are typically considered part of the building envelope, and how does it influence maintenance planning?

• A. Walls, Roof, and Windows; affects moisture, air leakage, and energy, guiding inspections and sealant/insulation upgrades.
• B. Foundation, flooring, and HVAC; primarily affects structural safety rather than envelope performance.
• C. Lighting fixtures and interior finishes; mainly affects aesthetics and energy use.
• D. Landscaping and exterior signage; largely unrelated to the building envelope.

Answer: (A)