Clark Hall Energy Retrofit Results!

Post Updated: July 26, 2017

After three weeks of focused and challenging thermal boundary remediation the job is completed and the results are excellent. Most notably the building air leakage rate was reduced by 54%. This brings the air changes per hour down from 2.5 to well below 1 ACHn. The CFM50/shell sqft was reduced by 50%, down toContinue reading

After three weeks of focused and challenging thermal boundary remediation the job is completed and the results are excellent. Most notably the building air leakage rate was reduced by 54%. This brings the air changes per hour down from 2.5 to well below 1 ACHn. The CFM50/shell sqft was reduced by 50%, down to .50 cfm50/ssf. For a thermal boundary remediation project these are great numbers. I say remediation and not renovation because the workscope focuses on particular envelope areas with limited access. When a project is renovation it entails opening of spaces to gain full access, which allows for a more complete install of air/insulation barriers and greater air leakage reduction. With walls and roof rafters insulated, envelope air sealed and new windows, projected energy savings is over 50%, resulting in conservative $9,000 annual savings and solid ROI.Thank you Smith College for your commitment towards building comfort, energy savings and reduction of green house gases.	Dormer fully insulated/air tight with closed cell foam, fire rated.
Team work! Crew carefully dense packing against old lathe/plaster walls.	Rafters dense packed with cellulose. Intricate details around HVAC and wiring.	Surprise knee-wall with charred framing. After repairs, fully insulated.