Blow door test

What is a blower door test ? A blower door test is a way to check how air-tight a structure is. It is designed to check for air leaks in walls, attics, and mechanical penetrations. While a blower door test does not evaluate how well a structure is insulate it can reveal drafty walls and air-bypass situations that could undermine otherwise well insulated wall assemblies.

A poorly sealed houses will have higher utility bills, issues with comfort, and potential mold an rot issues caused by. The fan pulls air out of the house, lowering the air pressure inside. Often the blower door hardware converts fan pressure measurements directly to fan airflow values.

It can also test the air tightness of the ductwork in your home. While performing this test , a compentent technician can find air leakage spots and recommend the correct course of action to eliminate as many of these air leasks as possible. The test reveals how much conditioned air (either heated or cooled) leaks from your house when the house is placed under negative pressure. It is called the air infiltration rate of a building.

Simply put a blower door is a diagnostic tool used to measure how much air infiltration (air leakage) occurs in a house. Retrotec has been manufacturing blower door and duct testing equipment for over years. All new, residential buildings that are stories or less, are required to pass a blower door test ! To conduct a blower door test , an infiltrometer or blower door fan is placed in the main entry doorway to depressurize the house or suck out air from the interior.

Conducting a blower door test is relatively easy, but before you turn on the equipment there is a series of steps you must take first. Only with careful preparation. The procedure is used to improve the energy efficiency of. An energy audit is a diagnostic visit that measures the efficiency of a building. By using state-of-the-art technology to discover and pinpoint areas of inefficiency.

This knowledge helps energy auditing professionals identify gaps in the air barrier and make recommendations for air-sealing. The blower door test identifies how much air is leaking into and outside of a structure and where. In existing homes, occupants can expect lower heating and cooling costs if these air-sealing measures are taken. Skal du have tæthedsprøvet en bygning, så skal du bestille en blower door - test fra OBH. Vi tilbyder i OBH-Gruppen landsdækkende blower door - test af alle typer.

BLOWER DOOR TESTING : A carpenter would not build a home without a measuring tape. Located in Collier county to help builders meet code compliance. Everything there is to know (well, almost) about blower door testing with a few engineer-y jokes along the way. Inadequate air sealing or insulation in. It is also called an air-leakage or infiltration test.

Starring John Straube, P. It measures the air that moves through a. To determine a building’s ACH, the blower door performs an airtightness test with the house depressurized (or pressurized) to Pascals. Creating a small pressure difference. An extensive functional test is included.

Background Florida House Bill 5and Senate. Blower Door Air Leakage Testing Guide for Florida Code Compliance.