This past Friday, Bruce Hampton AIA with Elton Hampton Architects presented and discussed the retrofit project at the South End’s Castle Square Apartments. As the principal in charge of the 1960s era renovation project, Hampton focused on the project process, design strategy, retrofit scheduling and collaboration needed to make this the largest retrofit in the country.
The 500 unit complex is currently undergoing extensive retrofitting as well as some new construction, cutting energy use in the complex by a projected 72%. A Deep Energy Retrofit is defined as a renovation that results in a savings of at least 50%, where as typical energy efficiency measures result in an average of 30% savings.This project will hopefully set the standard in retrofitting Boston’s aging affordable housing stock, which includes many of the oldest public housing projects in the country.
One of the most important strategies of the retrofit is to wrap the buildings in a super-insulated shell, which will provide 10x the insulation value of the current structure.The existing R20, R3 and R1.7 roof, walls and windows, respectively, will become R40, R40 and R5, respectively. The project also strays from the norm in green renovation, by drawing a contrast between what defines a retrofit and a renovation. Residents in this case will stay in their units during construction, because the majority of the building will remain as it is. The project is expected to achieve LEED Gold Certification under the LEED Mid-Rise Pilot, with specific emphasis on green materials, indoor air quality, energy use reduction and water use reduction.
The presentation by Mr. Hampton, as well as all past-presentations, can be downloaded from the Housing Committee’s resources webpage. You can follow the BSA Housing Committee on Twitter (@BSAHousing), for updates on upcoming meetings, housing advocacy news, and ongoing initiatives within the Committee.
1. “Castle Square Deep Energy Retrofit.” Castle Square Deep Energy Retrofit. Castle Square Tenants Organization. Web. 15 Mar. 2012.
Photos by Aaron Trahan.