These case studies provide examples of measures for new and existing high-rises and multiples that will help to reduce yearly costs as well as increase the lifespan of the building. New Buildings Structural Insulated Panel (PDF) Insulated Concrete Form (PDF) Two-Pipe Fan Coil (PDF) Drainwater Heat Recovery (PDF) Existing Buildings Windows and Balcony Door Replacements (PDF) Weatherization and Air Sealing (PDF) Plumbing Retrofits (PDF) Solar Wall (PDF)