Intersecting walls pose an energy-efficiency conundrum. The usual way to address the situation is through ladder backing (as opposed to 3-stud wall bucks) and continuous sealant for the top and bottom places along the stud edges. But this incredibly clever solution is easier, and provides room for more robust insulation.
Energy costs that go to conditioning the air in a home add up to about half of its overall energy consumption. Improving the competence of the building envelope and using insulation with R-values that exceed those stipulated by the local building code will help to reduce the homeowner’s energy consumption.
Insulation is the key to energy savings only if it is accompanied by an effective air barrier. Gaps and holes in your air barrier will mitigate the efficacy of even the most robust insulation. When any holes in the building envelope are effectively sealed, the homeowner can expect to save up to 30% of their home energy bills.
When a ‘whole house’ design approach is adopted, construction professionals can effectively improve energy efficiency with little or no increase in construction cost as higher costs may be offset by using a smaller HVAC system or less material. Efficient wall systems enable the construction professional to secure the building envelope and prevent energy loss.
