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Greenwood, Jackson County

Blower Door Testing in Greenwood, Florida

For Greenwood builders deciding what finish work can go on before the air leakage test, and what number the house needs.

Blower door fan set in a red panel across the front doorway of a new house

Testing new Greenwood houses for air leakage

Big Bend Services, Inc. tests newly built houses in Greenwood, ZIP 32443, for air leakage under the Florida energy code. Section R402.4.1.2 of the Florida Building Code, Energy Conservation, 8th Edition (2023), sets the limit at 7 air changes per hour at 50 pascals for Climate Zones 1 and 2, and Table R301.1 puts Jackson County in Zone 2.

Book by calling (850) 819-6031, Monday to Friday, 7:00 AM to 4:00 PM, or use the form. Tests are booked through our office in Wewahitchka.

Hallway of a newly finished house

Finish work

Greenwood finish trades that can work around the test

The fan reads air moving through the outside walls, the ceiling below the attic and the floor. Trades working on surfaces inside that shell can carry on before or after the test date.

  • Flooring installers

    Tile, wood, vinyl or carpet goes over the subfloor.

  • Cabinets and countertops

    Setting cabinets and tops has no effect on the result.

  • Mirrors and hardware

    Mirrors, towel bars and door hardware go on whenever suits.

  • Appliances

    Sliding a refrigerator or range into place changes nothing. The range hood duct and dryer vent are different: they pass through the shell and need to be in before the test.

Blower door fan sealed into the front doorway of a new house, seen from outside

Work that does move the reading

Anything that opens a path through the outside walls, the ceiling under the attic or the floor changes the number. That includes a new light box in a top-floor ceiling, a pipe or wire run through an outside wall, a new exhaust fan, and an opening cut to reach something and left open. Moving a light or adding an outlet on an outside wall after the drywall is up counts the same way.

Drywall is not finish work for this test. On the outside walls and the ceiling below a vented attic, the drywall is part of the air barrier, so a missing sheet or an open chase behind it counts as an opening.

Blower door fan in a red panel beside a doorway with a gauge on a tripod

Trim-out

Finish-stage trades that do touch the shell

Some trades come back at the finish stage to work on openings they made earlier, and that work sits on the boundary.

  • Electrical trim-out

    Devices and cover plates on outside walls and fixtures in the top-floor ceiling. The gap around each box is part of the shell.

  • Heating and cooling trim-out

    Grilles set on the duct boots. The seam between each boot and the drywall is what counts, not the grille.

  • Plumbing trim-out

    Fixtures and trim plates where pipes come through an outside wall or the floor.

  • Low-voltage trim-out

    Cable and data plates on outside walls.

Empty laundry room with washer hookups in a newly finished house

Before finishes cover them

Openings that are easier to seal early

  • Under sinks

    Drain and supply pipes come through the floor or wall inside the sink cabinet.

  • Behind a tub or shower

    An outside wall behind a tub is closed off once the tub and surround are set.

  • Along the bottom of outside walls

    The joint where the wall meets the floor, covered once the baseboard goes on.

  • Behind the refrigerator and range

    Water and gas lines through the floor or wall, hidden once the appliances slide in.

  • Around a factory-built fireplace

    The gap where the unit meets the wall framing, covered once the surround and mantel go on.

  • At the electrical panel

    Where cables enter a panel set in an outside wall, before the cover goes on.

New single-story house with the outside finished and the yard not yet landscaped

Booking

Booking the test

Send the street address, the permit number, the ready date and who to call on site. The ready date is the day the last opening through the shell is made and the walls and ceilings are closed, not the day the house is finished.

  • Dates that slip

    Call the office and a new test date is set.

  • Several houses

    Each one is tested on its own and gets its own result.

Blower door fan sealing the front door of a new house, seen at an angle
Blower door fan in a red frame across an interior doorway with a gauge on a tripod beside it

What to expect

How the booking works

  1. 1

    Send the build details

    Address, permit number and when the house will be ready.

  2. 2

    Test booked

    We give you a date for the test.

  3. 3

    Test run

    The house is tested once it is ready.

  4. 4

    After a failed test

    Corrections are made and the house is tested again.

Get a Quote

Newly built white farmhouse-style home with a metal porch roof and fresh sod

FAQ

Greenwood blower door test questions

Have another question? Call (850) 819-6031.

Does caulking the trim help the number?
Yes, but only where the caulk closes a path to the outside, such as the joint between a window frame and the wall. Caulk along trim between two rooms does nothing for the reading.
Does the garage door need to be installed?
No, not for an unheated, uncooled attached garage, since the garage sits outside the test. The door between the garage and the house does need to be hung and closed.
Do interior doors need to be hung?
No. Where they are not hung yet, the openings are simply left as they are.
Is the attic part of the test?
Not with a vented attic. An attic sealed and insulated at the roof deck is opened to the house for the test and measured with it.

Get a quote

Request a Blower Door Test in Greenwood

Send the Greenwood address, the permit number and the date every opening through the shell will be in.

(850) 819-6031

511 S Highway 71, Wewahitchka, FL 32465
Monday to Friday, 7:00 AM to 4:00 PM

Empty bedroom of a newly finished house

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