--- title: Blog | Insulation Institute | blower door test description: blower door test | Stay up to date with the lastest industry news provided by the Insulation Institute. --- [![Insulation Institute](https://information.insulationinstitute.org/hubfs/NAIMA_Jan2016_Theme/layout/logo.png)](https://insulationinstitute.org/) - [About NAIMA](https://insulationinstitute.org/about-naima/) - [News & Industry Issues](https://insulationinstitute.org/news-industry-issues/) - [Blog](https://information.insulationinstitute.org/blog) - [Tools & Resources](https://insulationinstitute.org/tools-resources/) - [Contact Us](https://insulationinstitute.org/contact-us/) [![Insulation Institute](https://information.insulationinstitute.org/hubfs/NAIMA_Jan2016_Theme/layout/logo.png)](https://insulationinstitute.org/) - [About NAIMA](https://insulationinstitute.org/about-naima/) - [News & Industry Issues](https://insulationinstitute.org/news-industry-issues/) - [Blog](https://information.insulationinstitute.org/blog) - [Tools & Resources](https://insulationinstitute.org/tools-resources/) - [Contact Us](https://insulationinstitute.org/contact-us/) - [Residential](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/) - [Comparing Insulation Types](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/comparing-insulation-types/) - [Why Insulate](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/whyinsulate/) - [Installation Guidance](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/) - [Grade 1 Installation](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/grade-1-installation/) - [Installation Considerations](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/installation-considerations-2/) - [Moisture Management](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/moisture-management/) - [Vapor Retarders](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/vapor-retarders/) - [Attics and Ceilings](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/attics-and-ceilings-2/) - [Walls and Knee Walls](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/walls-and-knee-walls/) - [Floors](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/floors/) - [Codes & Standards](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/codes-standards/) - [Health & Safety](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/health-safety/) - [Commercial](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/) - [Comparing Insulation Types](https://insulationinstitute.org/comparing-insulation-types/) - [Why Insulate](https://insulationinstitute.org/why-insulate/) - [Installation Guidance](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/installation-guidance/) - [Installation Considerations](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/installation-guidance/installation-considerations/) - [Moisture Management](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/moisture-management/) - [Vapor Retarders](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/vapor-retarders/) - [Ceilings](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/installation-guidance/ceilings/) - [Walls and Knee Walls](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/walls-and-knee-walls/) - [Floors](https://insulationinstitute.org/im-a-building-or-facility-professional/residential/installation-guidance-2/floors/) - [Codes & Standards](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/codes-standards/) - [Health & Safety](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/health-safety-2/) - [Metal Buildings](https://insulationinstitute.org/im-a-building-or-facility-professional/commercial/insulation-for-metal-buildings/) - [Air Handling](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/) - [Why Insulate](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/why-insulate/) - [Installation Guidance](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/installation-guidance/) - [Codes & Standards](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/codes-standards/) - [Health & Safety](https://insulationinstitute.org/im-a-building-or-facility-professional/insulating-air-handling-systems/health-safety/) - [Piping](https://insulationinstitute.org/im-a-building-or-facility-professional/piping/) - [Why Insulate](https://insulationinstitute.org/im-a-building-or-facility-professional/piping/why-insulate/) - [Installation Guidance](https://insulationinstitute.org/im-a-building-or-facility-professional/piping/installation-guidance/) - [Codes & Standards](https://insulationinstitute.org/im-a-building-or-facility-professional/piping/pipe-insulation-codes-standards/) - [Health & Safety](https://insulationinstitute.org/im-a-building-or-facility-professional/piping/insulation-health-and-safety-for-piping-systems/) - [Industrial](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/) - [Comparing Insulation Types](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/comparing-insulation-types/) - [Why Insulate](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/why-insulate/) - [Installation Guidance](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/installation-guidance/) - [Codes & Standards](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/codes-standards/) - [Health & Safety](https://insulationinstitute.org/im-a-building-or-facility-professional/industrial-insulation/health-safety/) # Insulation Institute Blog # Insulation Institute Blog ## [Airtightness and Ventilation Can Thwart COVID-19](https://information.insulationinstitute.org/blog/airtightness-and-ventilation-can-thwart-covid-19) [![](https://information.insulationinstitute.org/hubfs/Paul%20Grahovac-Ventilaton%20Solution%20to%20COVID.jpg)](https://information.insulationinstitute.org/blog/airtightness-and-ventilation-can-thwart-covid-19) The infectious disease and HVAC engineering communities have been grappling with the complexities of COVID-19 transmission for the past nine months. Increased HVAC fresh air has the potential to dilute and remove the aerosol droplet particles of COVID-19 that many experts believe is one of the [main sources of transmission](https://www.cdc.gov/coronavirus/2019-ncov/more/scientific-brief-sars-cov-2.html). Now the building science... [Details](https://information.insulationinstitute.org/blog/airtightness-and-ventilation-can-thwart-covid-19) Oct 23, 2020 11:38:45 AM [Stacy Fitzgerald-Redd](https://information.insulationinstitute.org/blog/author/stacy-fitzgerald-redd) ## [New Data Shows Strong Appeal of HERS](https://information.insulationinstitute.org/blog/new-data-shows-strong-appeal-of-hers) [![](https://information.insulationinstitute.org/hubfs/iStock-904483520.jpg)](https://information.insulationinstitute.org/blog/new-data-shows-strong-appeal-of-hers) [RESNET](https://www.resnet.us/)announced this week that its analysis of the top 200 U.S. home builders in 2019 shows more builders are constructing HERS homes, and of all homes built by the top 200 builders, 39 percent received a HERS rating last year. Other impressive numbers from the analysis show: [Details](https://information.insulationinstitute.org/blog/new-data-shows-strong-appeal-of-hers) Oct 2, 2020 9:28:28 AM [Stacy Fitzgerald-Redd](https://information.insulationinstitute.org/blog/author/stacy-fitzgerald-redd) ## [10 Hidden Air Leaks in New Construction](https://information.insulationinstitute.org/blog/10-hidden-big-holes-in-construction) [![](https://information.insulationinstitute.org/hubfs/NAIMA_Hidden_Air_Leaks_New_Construction-1.jpg)](https://information.insulationinstitute.org/blog/10-hidden-big-holes-in-construction) Sealing common air leakage pathways is key to achieving a tight thermal envelope. Often, hidden holes in new construction homes can make achieving an airtight envelope very difficult. Knowing where these hidden holes tend to occur can help builders avoid a massive air leakage issue. [Our 10 Hidden Air Leaks in New Construction Homes](https://insulationinstitute.org/wp-content/uploads/2020/02/N099-Hidden-Air-Leaks-New-Construction.pdf)guide covers... [Details](https://information.insulationinstitute.org/blog/10-hidden-big-holes-in-construction) Feb 6, 2020 4:52:33 PM [Stacy Fitzgerald-Redd](https://information.insulationinstitute.org/blog/author/stacy-fitzgerald-redd) [All posts](https://information.insulationinstitute.org/blog/all) ### ALREADY A SUBSCRIBER? 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