The Concord 4-square project is a research study in methods and materials for Deep Energy Retrofits which Synergy completed in conjunction with Building Science Corporation and their chief building scientists. Very early in this new wave of retrofits, new theories were put into practice to answer the question, can a 50% reduction in energy usage be met with existing housing. We far surpassed this modest goal, and laid the ground work for the most popular form of Deep Energy Retrofit, exterior application of rigid foam.
The project met a 65% energy reduction with envelope and HVAC upgrades. The home owner has since gone further to a Zero Energy home with the addition of 5.0 kw Solar PV array.
