• Use fill-lines of solid or braided stainless, not plastic or rubber, on point-of-use fixtures, such as toilets, sinks, water dispensers, appliances, etc.
• Provide collection pans for hot water heaters and water-use appliances (dishwashers, washing machines, etc).
• For stacked restrooms and mechanical rooms (more critical as story heights increase): o Seal floor penetrations and floor/wall joints with watertight materials o Provide adequately designed floor drains • For stacked electrical rooms (more critical as story heights increase): o Seal ceiling penetrations with water and fire-resistant materials o Provide curbing for highly sensitive components, such as electrical buss duct risers. • For upper-floor mechanical areas that store/move large volumes of water, as in tanks, pumps: o Provide adequate containment, such as curbing and diking, and drainage o Seal floor/wall joints with watertight materials o Provide high water level interlocks for upper floor/roof level automatic-fill water tanks
• Avoid piping connections with dissimilar metals to help limit galvanic corrosion
• In a water event, lock elevators from going to sub-grade levels.
• For properties that treat for water chemistry or have a history of corrosion failures, perform corrosion testing on a regular basis to determine end-of-useful life and replacement schedules.
• Drain and isolate obsolete water lines and remove as soon as possible.
Freeze Ups •
Make the building’s exterior envelope resistant to cold air penetration. o Ensure doors and windows close tightly o Caulk/weather-seal around doors, windows, skylights, etc. o Close and seal unnecessary exterior wall penetrations, such as dampers, louvers, and intake vents • Provide heat (minimum 40°F) in all buildings where water-based components (piping, equipment) are present. Pay specific attention to attics, crawl spaces, soffits, exterior wall cavities, etc., and perimeter areas, such as stairwells, vestibules, atriums, loading docks, equipment rooms, etc.
Made with FlippingBook. PDF to flipbook with ease