Eurovent Certita Certification have a certification programme for rigid and semi-rigid ventilation ductwork systems divided into the following sub-programmes: Rigid metallic ductwork systems with circular cross-section (DUCT-MC); Rigid metallic ductwork systems with rectangular cross-section (DUCT-MR); Semi-rigid non-metallic ductwork systems predominantly …Continue reading →
TightVent Europe has published a list of applicable standards for building and ductwork airtightness. The detailed list can be found here. The graph below shows ductwork airtightness standards in relation to the design and construction process. Ductwork airtightness standards in relation …Continue reading →
TAAC is the TightVent Airtightness Associations Committee, launched in September 2012 by the TightVent Europe platform, with the primary goal to bring together national associations and experts in order to promote reliable testing/inspection and reporting procedures. The scope of TAAC …Continue reading →
Ductwork airtightness can be defined as the resistance to inward or outward air leakage through the ductwork shell. The limit values for the maximum air leakage volume flow in duct systems are defined in the 4 tightness classes A to …Continue reading →
There are two major systems to classify ductwork airtightness, one based on European standards, the other one based on ASHRAE standard 90.1-2010. Both are based on the leakage airflow rate at a given ductwork pressure divided by the product of …Continue reading →
Leakage in ventilation duct systems is important to keep to a minimum in order to save energy and keep the designed performance for a good indoor air quality. The tightness can be built by quality products and a professional installation or …Continue reading →
Requirements depend on the country and the context of the measurement. Most EU countries include in their regulations either required or recommended minimum airtightness levels with or without mandatory testing. There are several countries (e.g.United Kingdom, France, Belgium, Ireland) where, …Continue reading →
A method of quantifying how much air leaks into or out of an enclosure. EN 13829 gives a standard test method for buildings. Several standards apply to ductwork systems (see also “How is the ductwork airtightness quantified?“). Building airtightness levels can …Continue reading →