Texas Building Registry Reports
The following shows selected data from the IC3 (International Code Compliance Calculator) database starting with data collected in 2009. New requirements were identified during evaluation of this data, such as: differentiation between final- and work-in-progress projects and third party verification of construction as the State began to move to IECC 2009.
The Texas Administrative Code 388.008c lists areas where ESL may cooperate with Industry to accomplish three tasks including: “Provide a registry of completed ratings for newly constructed residences and residential improvement projects for the purpose of computing the energy savings and emissions reductions benefits of the home energy ratings program.” The results from ESL’s research and software projects is presented here.
International Code Compliance Calculator (IC3) Usage
The following shows selected data from the International Code Compliance Calculator’s (IC3) database starting with data collected in 2009 as part of the Texas Building Registry. IC3 provides energy code compliance certificates to homebuilders for submission to their local building officials. The system’s functionality was expanded in 2009 to include IECC 2006 (Houston) and IECC 2009 code compliance. Builder and code official training was conducted around the State. It was during evaluation of this data that new requirements were identified such as differentiation between final and work in progress projects and third party verification of construction as the State began to move to IECC 2009.
New User Accounts in IC3: This chart displays the number of new IC3 user accounts registered each month for the selected reporting period. Data is interactive and updates based on user-selected dates.
IC3 Certificate Generation: This chart illustrates monthly IC3 certificate generation activity over the selected reporting period, helping users identify trends, seasonal variations, and changes in certification volume over time. Source: IC3 Database.
Top 10 cities generating IC3 certificates: This chart highlights the top 10 cities ranked by the number of IC3 certificates generated during the selected reporting year. Values update dynamically based on the year selected. Source: IC3 Database.
This matrix displays the top 10 cities generating IC3 certificates during the selected reporting year. Monthly certificate counts are shown for each city, along with annual totals, allowing users to compare certification activity across cities and identify trends throughout the year. Source: IC3 Database.
Top 10 counties generating IC3 certificates: Horizontal bar chart displaying the top counties by IC3 certificate generation for the selected reporting period. Counties are ranked from highest to lowest based on certificate count. The x-axis represents the number of certificates generated, and the y-axis lists county names. Data updates dynamically according to the selected reporting year and filters. Source: IC3 Database.
Matrix showing the top 10 counties by IC3 certificate generation for the selected reporting year(s). Monthly certificate counts are displayed by county, along with annual totals. Rankings and values update dynamically based on the selected reporting period. Source: IC3 Database.
International Code Compliance Calculator (IC3) House Construction Trends
The following shows selected data from the IC3 (International Code Compliance Calculator) database starting with data collected in 2009 as part of the Texas Building Registry. New requirements were identified during evaluation of this data, such as: differentiation between final- and work-in-progress projects, third party verification of construction, and the need to merge IC3 and TCV as the State began to move to IECC 2009.
Choropleth map showing the distribution of average residential ceiling insulation (R-value) in newly constructed homes across Texas counties during the selected reporting years. Counties are color-coded by average ceiling insulation ranges, highlighting regional variations in insulation levels and the thermal performance of residential building envelopes.
Choropleth map showing the distribution of average residential wall cavity insulation (R-value) in newly constructed homes across Texas counties during the selected reporting years. Counties are color-coded by average wall cavity insulation ranges, highlighting regional variations in insulation levels and overall building envelope thermal performance.
Choropleth map showing the distribution of average residential air conditioner Seasonal Energy Efficiency Ratio (SEER) values in newly constructed homes across Texas counties during the selected reporting year. Counties are color-coded by average SEER ranges, highlighting regional variations in cooling system energy efficiency.
Choropleth maps showing the distribution of average residential heating efficiency for natural gas systems (left) and heat pump systems (right) in newly constructed homes across Texas counties for the selected reporting year. Counties are color-coded by average efficiency values, with colors representing predefined efficiency ranges. The maps highlight regional variations in heating system efficiency and the geographic distribution of heating technologies.
Choropleth maps showing the distribution of average residential water heater energy factor (EF) for natural gas water heaters (left) and heat pump water heaters (right) in newly constructed homes across Texas counties for the selected reporting year. Counties are color-coded by average energy factor ranges, highlighting regional variations in water heater energy performance and technology distribution.