What are the blower doors?
blower doors are devices used to detect air leakage in a house or building. Depending on how the building was designed, it may include gaps and holes in its external state that allow air to escape into the countryside. To maximize energy efficiency, many homeowners try to seal as many of these leaks as possible to improve the airtightness of the structure.
Every door for the blower has three basic components. Large plastic or wooden frame is placed in the outer door frame in the building. This frame contains a specially made cut -out designed to hold a fan or blower. The pressure meter associated with the blower allows operators to measure air pressure changes in the building and outside. During the door test, the engineers use the blower to add or remove the household air until the pressure change between inside and out is detected.
Based on the volume of air that is needed to create pressure differential, operators then determine how airThe shattering structure is. If a large volume of air must be added, it means that the house has a lot of air leakage that is associated with low energy efficiency. If only a small air volume is required, the house is reportedly firmly designed, which is associated with high energy efficiency.
Evaluation of the results of the door blower test can then take steps to improve energy efficiency. This may include adding insulation to walls, ceilings and browsing areas. It also includes seals or sealing around pipe penetrations or for any joints in tiles or roofing. Around the door and windows can also help minimize air leaks. These steps not only help reduce heating and cooling accounts, but also improve comfort and reduce fossil fuels such as oil and natural gas.
After adding insulation and air gasket to the house, homeowners can repeat the DV testThe blowers on the check to change the air leakage measurement. This device can also be used in a commercial environment to test windows, roofs and other structures. The blower door test can also be used to test the conditions of positive air pressure in a building that require many fire codes. In commercial structures, the blower door can be applied to heating, cooling and ventilation channels of the building. These components are often subjected to a specific maximum air leakage level based on local building regulations.