Air tightness testing using a Blower Door

A Blower door can be used 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 insulated, 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 moisture, potentially causing damage and deterioration of the building and leading to costly investigations and repairs..

Blower door tests are included with all energy assessments and can be carried out on residential homes, commercial structures, and industrial buildings.

By using energy modelling software and air tightness testing, a home’s overall energy performance can be determined and compared to the required standard.

In addition to the standard Blower door test we also do an Infra red thermal scan with the blower door running. Thermal videography is used to locate and identify air leaks and poorly insulated area in the building. This is a powerful method that will help the advisor and building owners to develop a stategy to improve building envelope tightness, proper ventilation, reduce energy usage and increase occupant comfort and health.