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Ebro, Washington County

Blower Door Testing in Ebro, Florida

Air leakage tests for new houses in Ebro, measured against the Florida limit of 7 air changes per hour.

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

Blower door tests for new houses in Ebro

Big Bend Services, Inc. runs the air leakage test the Florida energy code sets for newly built houses, and we test new homes in Ebro, ZIP code 32437. The result is one number, and the code puts a ceiling on it: 7 air changes per hour at 50 pascals.

Call (850) 819-6031, Monday to Friday, 7:00 AM to 4:00 PM, or use the form on this page.

Newly built single-story home with fresh sod and a new driveway

The limit

Where the 7 in the Ebro limit comes from

The figure is set in section R402.4.1.2 of the Florida Building Code, Energy Conservation, 8th Edition (2023). It applies in Climate Zones 1 and 2, and Table R301.1 places Washington County, Ebro included, in Climate Zone 2.

  • Air changes per hour

    How many times the air inside the house would be replaced in an hour while the house is held at the test pressure.

  • 50 pascals

    The test pressure the fan holds the house at while the leakage is measured.

  • Measured on the house

    The reading comes from the test on the built shell, not from the plans.

Blower door fan in a red frame across an interior doorway with a gauge on a tripod beside it

Small plans and large plans

A small plan and a large one face the same 7, since the figure is already scaled to the size of the house. What changes is how much each gap weighs. A compact house has less air to spread its leaks across, so the same gap moves its reading further than it would in a large house.

On a builder list with several plan sizes, the smaller plans are where careful sealing around each opening matters most.

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

The result

What the reading tells you

  • Over 7

    The leaks are corrected and the house is tested again under the same conditions.

  • Not where the leaks are

    It does not point to a wall, a room or a fixture. Finding the gaps is part of correcting them.

Hallway of a newly finished house

Builders

Testing several houses for one builder in Ebro

A builder with more than one new house in Ebro can book them together. Each house has its own test and its own reading.

  • One call for the list

    Send the address, permit number, ready date and site contact for each house.

  • A date for each house

    Each house gets a test date when its own shell is done.

  • Changes by house

    When one house on the list slips, call with that address and its new ready date.

Empty bedroom of a newly finished house

In the build

Where the test sits in each house on the list

  • After the shell is closed

    Once the last opening through the walls, ceiling and floor is made on that house, it can be tested.

  • While finishes go on

    Painting, flooring and cabinet work do not change the reading, so they need not be done first.

  • Ahead of the finish date

    Testing early in the finish stage leaves time to correct leaks and run a retest on that house before it has to be done.

  • Before the attic is insulated

    Top plates, light cans and duct boots are easiest to reach from the attic before the insulation covers them.

Blower door fan set up in a hallway doorway of a new home

Before the date

Where a new house leaks

  • Around windows and doors

    The space between each frame and its rough opening, before the trim covers it.

  • Chases and shafts

    Framed chases for a flue or ducts that open from the attic down into the walls.

  • Service entries

    Where the electric, cable and phone lines come into the house.

  • Recessed lights

    Each can set into a ceiling under the attic has a gap around its housing.

  • Vent stacks

    Each plumbing stack that rises through a top plate and out the roof leaves a gap at both.

  • Attic access

    A hatch or pull-down stair with no weatherstripping around its edge.

  • Kitchen soffits

    A boxed soffit over the cabinets can open into the attic above it.

  • Behind the tub

    A tub set against an outside wall hides that stretch of wall, and the drain opening under it, once it is in.

Empty kitchen of a newly built house

Service side

Openings where lines leave the house

  • Hose bibs

    Each outdoor spigot passes a pipe through an outside wall.

  • Condensate drain

    The drain line from the air handler runs out through a wall or the slab edge.

  • Gas line

    Where the gas line enters from the meter to a range, water heater or fireplace.

  • Outdoor outlets and lights

    Each box set into an outside wall is an opening until it is sealed around.

  • The electric panel

    A panel set into an outside wall has cable entries through the back of the box.

Blower door fan sealing the front door of a new house, seen at an angle

Room by room

Pipe and duct openings inside the rooms

  • Under the sinks

    Supply and drain lines through the back of a sink cabinet on an outside wall.

  • Shower valves

    A valve set in an outside wall sits in a cutout behind the tile.

  • The washer box

    A recessed valve and drain box set in an outside wall.

  • Bath fan ducts

    Each duct leaves through a roof or wall cap.

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

Booking and test day

Ebro tests are booked through our office at 511 S Highway 71 in Wewahitchka.

On test day the house is left as the code asks: exterior windows and doors closed but not sealed, fireplace and stove doors closed, exhaust, intake and flue dampers shut, interior doors open where they are hung, heating and cooling off, and supply and return registers open.

Newly built white farmhouse-style home with a metal porch roof and fresh sod
Empty laundry room with washer hookups in a newly finished house

Same county

Blower door testing in nearby county towns

Newly built stucco home with a white garage door and a new concrete driveway

What to expect

How an Ebro test is booked and run

  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

Empty living room of a newly finished house

FAQ

Ebro questions about the limit and builder bookings

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

How is the number worked out?
The fan measures how much air it has to move to hold the house at 50 pascals, which is 0.2 inches of water column. That airflow over an hour, divided by the volume of the house, is the reading. A house with 2,000 square feet of floor and 9-foot ceilings holds 18,000 cubic feet, so it reaches 7 at 2,100 cubic feet per minute through the fan.
Is the limit different in the other counties you serve?
No. Every county we serve sits in Climate Zone 2, so a new house in any of them faces the same number as one in Ebro.
Can a builder send the list through the form?
Yes. Put each house on its own line with its details, or call the office and read the list over the phone.
Does the house volume include the attic?
Not with a vented attic, which sits outside the boundary. With an attic sealed at the roof deck, the attic is opened to the house and is part of what is measured. A heated and cooled bonus room counts in the volume like any other room.
Can a builder list houses in other towns on the same booking?
Yes. A list can mix Ebro houses with houses elsewhere in the counties we serve, as long as every address carries its own permit number and ready date.
Does a two-story house have extra places to leak?
It has the band of floor framing where the upper floor meets the outside walls, a joint a one-story house does not have, and that joint needs sealing like any other in the shell.

Get a quote

Request a Blower Door Test in Ebro

Use the form for one Ebro house or a whole list, and the office will follow up about test dates.

(850) 819-6031

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

Empty garage of a newly built house with a white door and a water heater

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