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Dana Hall TACKLES BIG CHANGES: A SUSTAINABLE RENOVATION

3/5/2024

 
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Thank you for sharing this article Sophia Sahni, former Sustainable Wellesley intern and now Sustainability Intern at Boyer Sudduth Environmental Consultants.

Surrounded by 55 acres of lush green landscape, Dana Hall School is situated in the town of Wellesley, a suburb of Boston, MA. This independent boarding and day school for girls grades 5-12 is currently on an ambitious mission. Since July 2022, Dana Hall has been renovating their entire Upper School Building in a way that reflects their value for sustainability. Here is how this small school is tackling this big project. 

Transforming the Old into the New
Head of School, Katherine Bradley, emphasized Dana Hall’s unconventional slant to the renovation project. “Environmental sustainability is essential to the school environment. 
We’re excited to have the opportunity to transform the Upper School into an energy efficient, sustainable building.” 

Instead of demolishing the old Upper School and rebuilding a completely new structure, Dana Hall chose to retain the original shell of the previous building. This decision was crucial to their environmentally conscious approach. Cement production accounts for more than 8 percent of global CO2 emissions. This is four times the CO2 emissions produced by the aviation industry. By maintaining the initial shell, Dana Hall was able to reuse essential carbon intensive materials and reduce the amount of new concrete used by 50%. 

The decision to remain in the same location also prevents new habitats from being destroyed and unnecessary disruption to essential ecosystems in Wellesley such as wetlands and floodplains. The current location will also maintain its access to walking and bike trails, lush parks, and public transportation, all within a 10 minute walk. 

A “Use Less” Mindset
Dana Hall approached this project with the mindset “use less”. Parking areas were consciously not expanded to encourage carpooling, and much of the furniture from the old building was retained. To the extent that was possible, any materials removed were recycled or reused elsewhere in the project. 

Using Responsibly Sourced Materials
According to the United Nations, the buildings and construction sector accounts for approximately 37% of energy and process-related CO2 emissions. Dana Hall saw this renovation as an opportunity to go against the grain of typical construction projects and really focus on being environmentally-conscious. 
When choosing materials, they prioritized those that were responsibly sourced and had a high recycled content and longevity. Below are some of the essential materials used in the construction and their recycled content: 
  • Structural steel framing: 90-100% recycled material
  • Aluminum curtainwall and storefront systems: 80-100% 
  • Asphalt paving: 80% 
  • Carpet: 45% 
Windows were a central feature of the construction plan. Numerous skylights and windows have been added or enlarged, and two impressive glass atriums now flank the sides of the new building. The windows optimize and enhance the entry of natural daylight, thereby reducing the dependence on artificial lighting. The triple pane glass used for the glass curtain walls also improves insulation, and automated opening and closing mechanisms will ensure controlled heating and cooling in the building. 

Being surrounded by nature, and having access to natural light, has been proven to provide numerous cognitive benefits. This biophilic design will truly bring the outside in, therefore, encouraging the well-being of both students and teachers, and enhancing the classroom experience. 

Moving Towards a Net Zero Future 
The HVAC system and the entire building runs on electricity, allowing for a net zero carbon emission. Once the building is complete, Dana Hall will source their clean energy from the Town of Wellesley. The building will be heated using heat pumps with a thermostat in each room to allow temperature regulation by occupants while simultaneously reducing unnecessary energy wastage. During evenings and weekends, the building heating systems will be set to a lower temperature to conserve energy while unoccupied. 

A Bright Idea: Using LEDS
To reduce energy loss, Dana Hall has adopted a sustainable energy management system. All of the new building’s lights are LED, and the outside lighting consists of dark sky exterior light fixtures to reduce light pollution. Every light in the new building is on its own circuit and occupancy sensors have been installed with the exception of lighting necessary for safety and security. When entering a room, the lights need to manually be turned on, and when the room is vacant, the lights will automatically switch off. By physically turning on the lights, it is anticipated that people will become more conscious of their light usage.

Conserving Water One Drop at a Time
Water runoff/stormwater can damage the environment by carrying fertilizer, bacteria, and pollution into local streams and rivers. According to the EPA, “Polluted runoff is one of the greatest threats to clean water in the U.S.” To protect habitats, Dana Hall has taken numerous strides to reduce the detrimental impacts of stormwater. 

No additional nonporous materials have been added to the exterior of the building. The drop off area right outside the Upper School is made out of stone pavers so water can drain through them as opposed to run off. Gravel has been added to the outdoor landscaping to facilitate water absorption and reduce mud and erosion. In addition, the renovation has implemented a Subsurface Stormwater Basin, a space for the storage of stormwater where accumulated pollutants can be removed and further treatment can be applied. 

Dana Hall has also adopted strategies to reduce water usage within the building. WaterSense low flow sensors have been applied to all bathroom utilities, including sinks and toilets.

Incorporating Sustainable Practices Beyond the Classroom 
​
This construction project is the first of many sustainable efforts to come. The implementation of short and long term bike racks as well as on-campus showers is anticipated to encourage sustainable modes of transportation. Emphasis on numerous sustainability initiatives, such as the addition of many canopy trees throughout the landscape and student led clubs, will help to ensure long term consciousness for climate change. 

“Dana Hall is a wonderful example of how educational communities can incorporate sustainability into all aspects of their identity,” notes Ms. Bradley. “We hope that these daily reminders of environmental practices will encourage students to be environmental stewards of the future.”  

Walk or Wheel To Schools Wellesley

9/2/2021

 
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Create Healthy Habits While Helping Wellesley Reduce Its Greenhouse Gas Emissions

The new school year is a chance to begin new routines. Recent climate studies show that 30% of Wellesley's traffic is school-related transportation. Instead of driving, start some new school traditions this fall.

 - Get together with friends and walk to school
 - Form neighborhood walking groups with other parents, caretakers, families – take turns leading the group.
 - Ride bikes or scooters with neighbors. 
 -Check in with the Wellesley Public Schools to see if there is space on the bus: it is free if you live more than 2 miles from school.

More information on Wellesley's upcoming “Safe Routes to School” walking and biking initiative is coming out soon. Learn more about it from the Town's Mobility Committee members (see below). Better yet, consider participating in it by serving as a parent representative for your school. 
Wellesley Select Board member Colette Aufranc at [email protected]
Wellesley School Committee Chair Catherine Mirick at [email protected]

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  • About
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