Whole House Approach
Thermal Boundary InvestigationThe 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. In order for insulation to be most effective, it should be installed with no gaps, voids, compressions or subject to wind intrusion. As a result, the inspection also requires a thorough investigation to determine if there is a proper air barrier in-line with the insulation that is installed. The air barrier should be contiguous and continuous over the entire thermal boundary and it should be perfectly aligned with the insulation. Get a home energy audit if this is interesting to you.
Exterior InspectionA walk around the perimeter of the home by a trained inspector is an important part of taking a whole house approach to remodeling. Uncovering issues that have gone unnoticed is an effective way to prioritize home remodeling projects. For example, if there is a leak in the roof then it would not be wise to install attic insulation. Damage to the insulation can occur if water is infiltrating into the attic. Other areas of importance are drainage around the home, land grading, foundation type and condition, siding, windows, doors, HVAC and trim. Looking at ventilation areas on the outside of the home will also help to prioritize home improvement projects.
H20 Drainage |
 Building Performance Institute Eric Gans
Building Analyst Envelope Professional BGE Approved Energy Contractor |
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