Thermal Boundary Investigation
The thermal boundary of the home can be defined as the place in which the inside of the house (conditioned space) is separated from the outside of the house (unconditioned space). The thermal boundary investigation requires looking at all six sides of of the separation points (top, bottom, back, front, left and right). The thermal boundary can also be described as the "envelope" of the home with the difference being the thermal boundary is actually the insulation in place to make the home more efficient and comfortable.
Example 1 - Kneewall Insulation
Thermal image of uninsulated kneewall from the inside of the home.
A highly prevalent problem with the thermal boundary in many houses in Maryland is the insulation condition at kneewall locations. A kneewall is an interior wall that is adjoining to an attic space (outside). Unlike an exterior wall that has a wall assembly (and insulation in most cases) to give it a greater R-value, the kneewall is usually only drywall hung to the framing and if not treated, can play a huge role in comfort issues as well as excessive energy bills. Examine what this looks like in the photos to the right.
Building Performance Institute
BGE Approved Energy Contractor
Pepco Approved Energy Contractor
Having your home evaluated by Hometrust is a great way to identify your next home improvement project.
Certifications earned through the Building Performance Institute demonstrate our ability to:
- Find air leakage points around your home.
- Show you steps to improve energy efficiency.
- Use science to guide improvements to comfort.
- Educate you how to tighten your building's shell.
- Learn about these opportunties before it is too late.
- Provide a unique perspective on your home's overall performance.
- Determine the root cause of any problems.
- Assess current insulation effectiveness.
- Measure air flow.
- Evaluate windows, doors, siding and roofing.
- Put you in complete control of the outcome.