Blower Door Training

blower door trainingThe rule Blower Door Training and requirement are almost here! All of Florida home builders must comply with the new Florida Building Code; Energy Conservation.

The New Rule on Energy Conservation:

The Florida Legislature has delayed the effective date of certain sections of the Florida Building Code, 5th edition until June 30, 2016. (
The included sections are:
a. R402.4.1.2 of the Energy Volume relating to mandatory blower door testing for residential buildings;
b. 403.6.1 of the Building Volume requiring a second fire service access elevator; and
c. R303.4 of the Residential Volume requiring mechanical ventilation for residential buildings.

Air flow through a building can have a powerful impact on comfort, expense, and air quality. Blower doors provide a way to quantify airflow and the resulting heat loss, along with a way to pinpoint specific leaks.

A blower door is a device for testing the airtightness of a building. It consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow. The combination of pressure and flow can be used to estimate the airtightness. The airtightness of a building is useful knowledge when trying to increase energy conservation or decrease indoor air pollution.