GB Design Build’s Tips for Improving A Home’s Energy Performance
The time to address energy performance in a home is during the conceptual phase. Even before the basic structure of the home is erected, your architect and builder should have a plan for insulating your home. The importance of proper insulation and efficient heating can’t be underestimated as these aspects control air circulation, energy performance and moisture control within a home.
The key points in a home where air usually escapes include the roof, windows, doors, wall studs and through the foundation. Thermal bridging is the term used to refer to places in the home where there is a direct transfer of heat from inside to outside through the structure itself. The most common places where thermal bridging occurs are through structural members themselves. For example, wall studs, roof rafters and floor rims.
At GB Design Build we recommend using Atlas CrossVent Insulation Board to guard against thermal bridging through the roof system. Inherent to their design, spacer strips allow for continuous airflow and thermal resistance by dispersing air build-up and providing a continuous thermal barrier of rigid insulation. The R-value of a material indicates the level of insulation that product provides. CrossVent panels from Atlas offers the highest R-value per inch of roofing insulation in the industry. With proper ventilation and insulation, less energy resources are needed to heat or cool a home and concerns about moisture build up are abated.
When a home is properly insulated there will be no ice damming on roofs, lower heating costs as well as a reduction in freezing and thawing cycles that can cause damage to fascia, shingles or flashing. Homeowners will also see a higher performance in regards to weather protection.
For high performance exterior walls, we use super insulation, which combines continuous rigid insulation and blown in closed cell rigid insulation as an air barrier. The process is finished with fiberglass batts for cavity insulation. Wall cavity insulation only addresses the walls themselves but doesn’t address insulation for windows, doors, wood framing, or any other ‘hole’ in the home. Rigid foam insulation helps prevent the potential for moisture condensation within the walls.
At GB Design Build, we create homes that perform well, are aesthetically distinct and utilize quality materials in each stage of the building process. If you have any questions regarding this article, please feel free to contact us.