The three things that change a building most are markets, money, and water. If you would ensure a building’s longevity, protect it from markets and water, and feed it money, but not too much and not too little. Too much encourages orgies of radical remodeling that blow a building’s continuity and integrity. Too little, and a building becomes destructive to itself and the people in it. Pressure to cut a building’s running costs inspires such shortcuts as cheaper air filters, replaced less frequently, and a lower rate of air cycling, and mildew left in the ducts. Then suddenly some month
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