Buildings and shelters provide enclosed spaces for people, equipment, or processes. Modular indoor buildings include in-plant offices, cleanrooms, sound-reducing enclosures, and restrooms for building out floor plans inside industrial facilities without the mess and noise of standard construction. Outdoor storage buildings protect tools and equipment from sun exposure, weather, and other hazards. Outdoor shelters provide covered areas where people can smoke, wait for transit, or store their bicycles. Guard buildings offer shelter for security personnel or parking attendants who monitor access to the grounds of a facility.