Blower Door Testing for New Construction

Curious about new construction blower door testing?

Many builders have requested a blower door testing checklist to prepare for this crucial step. Blower Door Testing is typically conducted during the final stages of construction by employing a blower door.

Given its timing at the construction's end, it is vital to monitor and implement specific measures throughout the construction process.

• Meticulous installation of a properly sealed home wrap for the exterior shell.

• Precise installation and sealing of windows.

• Thorough sealing of all exterior shell penetrations.

• Effective sealing of rim joists and sill plates.

• Completion and finishing of drywall.

• Installation of all light fixtures, electrical components, and outlet covers.

• Application of floor coverings throughout the property.

Air Infiltration Considerations During Testing. When preparing for testing, focus on the following:

• Confirm that all windows are securely closed and latched.

• Ensure doors are appropriately weather-stripped and can be closed and latched.

• Insulate attic hatches and ensure they rest on weather stripping.

• Verify the complete installation of all bath fans and range hoods

To ensure a smooth testing process, adhere to the following blower door checklist items:

• Conduct a thorough check of the residence before scheduling the BD test, verifying that all necessary preparations have been made.

• During testing, the technician will inspect the house to confirm the checklist items have been addressed.

• The technician will choose an appropriate door and set up the BD testing equipment.

• The house will be depressurized to determine the overall infiltration rate, a process that typically yields results within minutes. During the test, it's imperative that no one enters or exits the property.

• If the results meet compliance standards, the test concludes, and a report is generated by day's end.