Abstract
The U.S. Department of Defense (DOD) has set aggressive building energy performance goals to comply with the requirements of the 2007 Energy Independence and Security Act (EISA 2007), and is introducing state-of-the-art technologies into its new building design and building upgrade programs. A key part of this strategy is the identification, proof-testing, and introduction of promising new technologies into the building stock that will be needed to achieve mandated energy reduction goals. This article describes an attic retrofit strategy using batt and loose-fill cellulose insulation combined with phase-change material (PCM) applied in an existing DOD building. The subject building is located at Fort Bragg, North Carolina, and is a one-story building with ducts in the attic. Originally, the attic contained ceiling insulation and was unconditioned with soffit and gable vents. The project consists of three stages. First, the original attic was instrumented with temperature, heat flux and humidity sensors, and monitored over the heating and cooling seasons. In stage two, the attic vents were sealed and the roof decks, soffits, and gable ends were insulated with cellulose insulation. Finally, in stage three, low-cost bio-based PCM mats were installed on the interior surfaces of the cellulose insulation at roof decks and gables. Pre- and post-retrofit data are being collected over at least 9-month periods for each stage of analysis.
| Original language | English |
|---|---|
| Title of host publication | Thermal Performance of the Exterior Envelopes of Whole Buildings - XIII International Conference |
| Publisher | American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE) |
| Pages | 124-134 |
| Number of pages | 11 |
| ISBN (Print) | 9781939200501 |
| State | Published - 2016 |
| Event | 13th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings 2016 - Clearwater, United States Duration: Dec 4 2016 → Dec 8 2016 |
Publication series
| Name | Thermal Performance of the Exterior Envelopes of Whole Buildings |
|---|---|
| Volume | 2016-December |
| ISSN (Electronic) | 2166-8469 |
Conference
| Conference | 13th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings 2016 |
|---|---|
| Country/Territory | United States |
| City | Clearwater |
| Period | 12/4/16 → 12/8/16 |
Funding
The funding for this project has been provided by the Department of Defense’s Environmental Security Technology Certification Program (ESTCP). Oak Ridge National Laboratory (ORNL) is supported by the Building Technologies Office of the U. S. Department of Energy under contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The contributions of Phillip Childs and Jerald Atchley of ORNL in instrumenting the test building, data gathering and troubleshooting are gratefully acknowledged. The pre-retrofit building and duct leakage tests were performed by Jonathan Coulter and Christine Maurer of Advanced Energy (Raleigh, NC). The building retrofits were performed by Henry Venema and his crew from Nu-Wool Company, Inc. The funding for this project has been provided by the Department of Defense's Environmental Security Technology Certification Program (ESTCP). Oak Ridge National Laboratory (ORNL) is supported by the Building Technologies Office of the U. S. Department of Energy under contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The contributions of Phillip Childs and Jerald Atchley of ORNL in instrumenting the test building, data gathering and troubleshooting are gratefully acknowledged. The pre-retrofit building and duct leakage tests were performed by Jonathan Coulter and Christine Maurer of Advanced Energy (Raleigh, NC). The building retrofits were performed by Henry Venema and his crew from Nu-Wool Company, Inc.