
RETROTEC PRODUCTS AND SERVICES SPAIN AND PORTUGAL
OFFICIAL DISTRIBUTOR RETROTEC SPAIN AND PORTUGAL
Retrotec is a leading company in the design, manufacture and distribution of blower door systems. The brand has extensive experience in the industry and offers a range of high quality products and services.
About Retrotec equipment
A blower door system is a tool used to measure the air integrity of a building. These tests are becoming essential in almost any type of building to locate and quantify air leaks. It involves a powerful fan that is placed on a door or window of the building and creates a positive or negative pressure inside the building. This pressure is measured with a manometer, which provides a reading of the amount of air escaping from the building.
Blower door systems systems are used for a variety of purposes:
Energy efficiency assessments are used to measure the amount of air escaping from a building. This information can be used to determine the energy efficiency of the building and to identify areas where improvements can be made.
Reduced heating and cooling costs: Air leaks can increase a building's heating and cooling costs. By identifying and repairing leaks, you can reduce building energy consumption and save money on energy bills.
Improved indoor air quality: air leaks can allow polluted outdoor air to enter the building. This can lead to health problems such as allergies and asthma. By repairing leaks, the indoor air quality of the building can be improved.
Passivhaus buildings: A Passivhaus house is a highly efficient and energy-efficient building type. The Passivhaus standard focuses on significantly reducing the energy demand for heating and cooling. To achieve Passivhaus certification it is necessary to pass an air tightness test, which Retrotec teams are more than capable of performing and meeting all requirements.

The Blower Door tests are essential to evaluate the airtightness of a building and to determine the energy efficiency of its envelope. The results are obtained by measuring the amount of air infiltrating or escaping from the building when a controlled pressure difference is applied, simulating real conditions.
The calibrated fan is mounted on an exterior door and creates an interior air flow, blowing air into or out of the building. The fan creates a test pressure of 50 Pa (similar to a 30 km/h wind).
The panel (fabric or metal) temporarily seals the door and provides a hole for mounting the fan.
The manometer monitors the measurements and displays and collects the data of the air currents inside the dwelling.


