Skip to main content
Schedule Online

Insulation Assessment

Insulation assessments in Maryland

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.

Get a home energy audit if this is interesting to you.

Attic Inspection

Check out this typical attic inspection during a BGE home energy audit in Baltimore County Maryland


Example 1 - Kneewall Insulation

Proper air sealing and 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 Certified
Building Performance Institute
Eric Gans
Building Analyst
Envelope Professional
BGE Approved Energy Contractor
Pepco Approved Energy Contractor

Helping You!

*Improve home comfort
Educate you about your home
*Find air leakage in your home
*Improve energy efficiency
*Use science for solutions
*Assess your building's shell
*Help prioritize improvements
*Find the root causes
*Assess insulation levels
*Measure indoor air quality
*Evaluate windows & doors
*Evaluate attic ventilation

The Big Secret About Replacement Windows 

Considering New Windows?

It took me 12 years
to figure this one out...


    Specialized Maryland Contractor


    • MHIC Licensed
    • Building Analyst Certified
    • Envelope Professional Certification
    • EPA Lead Renovator Certified
    • YouTube Learning Channel


    Our mission is to help Maryland homeowners create a more comfortable home and save energy. We achieve this by applying building science principles and modern air sealing and insulating techniques.

    Google Reviews

    Services & Service Areas

    Anne Arundel County, Baltimore County, Baltimore City, Carroll County, Charles County, Harford County, Howard County, Montgomery County, Prince George's County



    hometrust is an energy star partner

    Contact Us
    our facebook page youtube

    MHIC License #158968
    Approved BGE Energy Contractor
    Approved Pepco Energy Contractor


    MHIC 158968
    8345 Sperry Court
    Laurel, MD 20723


    Hometrust Remodeling

    Proudly working in BGE & Pepco's Home Performance w/ ENERGY STAR program in Maryland to deliver whole-house energy savings to improve comfort & help protect the environment.
    2024 Hometrust Remodeling | All Rights Reserved

    An Energy Auditor's Purpose 
    "Energy auditors visit residential buildings and talk to owners and residents.  They inspect, test, and measure to decide what energy-efficient retrofits are practical and cost-effective." Residential Energy