Besides, these are old and icky buildings that seem hopelessly outdated and unsalvageable--both from a design and building code standpoint-- wouldn't it be easier to just knock everything down and start anew? Save the headaches!
It's a tempting thought, and one I've certainly been guilty of entertaining on many instances, but ultimately, I cannot help but recognize that modernizations are often the most sustainable and economical ways to improve a client's facilities. They provide an excellent opportunity to upgrade existing building systems without requiring brand new infrastructure, and they can revitalize a campus in the same way new construction can--without exhausting the same amount of resources or energy. They give existing buildings and sites the opportunity to become more environmentally friendly.
Take mechanical systems. All mechanical units have a limited shelf life, but many aging schools rely on decades-old technology that is inefficient and harmful to the atmosphere. Part of a mod's scope may involve installing units that do not emit chlorofluorocarbons and run off zoned systems that dynamically integrate with mixed ventilation within each room. These systems can monitor ambient conditions and run only when needed, instead of heating and cooling endlessly throughout the day, even when internal temperature is comfortable. Such an upgrade, though possibly more expensive up front compared to sticking with the same technology, will certainly provide significant energy savings through the system's life cycle. Similarly, with plumbing, high-efficiency fixtures such as low-flo urinals and automatic faucets can drastically reduce water consumption. Campus landscape beatification can employ drought tolerant and low-irrigation planting, further lowering water demands. Given the increasingly fragile state of water utilities these days, these gestures will continue to save money as water demand continues to rise and water supply dwindles.
So it makes logical sense to encourage modernizations over brand new construction whenever possible, even though the work involved may often be more complicated and stressful. Modernizations are necessities that every school will encounter at some point in their histories, and they are basically a form of adaptive reuse (or same-use), a hot buzzword in green design these days. Ultimately, however, the biggest payoff is seeing the joy in students' faces when they see their revitalized campus, fresh and new again. The pride and excitement the final product brings is well worth the long, often-messy journey to get there.
Albert Lam is a Project Coordinator at California-based LPA Inc. He is a LEED accredited professional who specializes in the design and implementation of K-12 schools.