English

ASHRAE ’s Residential IAQ Guide, published in 2018, contains practical and actionable strategies directed at multiple audiences, including builders, designers, occupants, whether they rent or own, and managers of multifamily buildings. It does this while also providing a compendium of sound scientific information for professionals who specialize in IAQ, home energy, commissioning, and those who develop programs and standards intended to transform industry practices. 

The book of proceedings of the 13th International BUILDAIR Symposium "Airtight Buildings, Thermography and Ventilation Systems in Practice",  held on June 2-3  2023 in Hannover, Germany. Contains 36 abstracts.

Worldwide, the demand for airtightness tests of tall buildings with a height of approximately 100 m is increasing. This report provides information on the planning and measurement concept for testing the entire building as a “single-zone” and presents the results and findings of the airtightness tests. The test set-up and the tests as such...

According to the two Swiss building standards Minergie-P and Minergie-A, individual dwelling units are considered measuring zones for airtightness, irrespective of whether they are in a new, renovated or modernized building. The Minergie standards focus on comfort between the dwelling units and the energy losses...

When dealing with very airtight buildings and buildings with flexible airtight roofing felts it might take several minutes for the differential pressure and air flow to level out after having changed the fan speed. Taking premature readings of the values causes measuring errors. The lecture provides pointers for test teams to avoid such measuring...

I would like to report on lessons learned in the field regarding two measurements at a special, particularly airtight and unusual building: A "concrete shell for CO2 storage in recycled concrete aggregates". Not only the building and its use for the permanent storage of CO2 in demolition concrete was unusual, but also measuring the building...

ISO 9972 describes the measurement procedure and calculation methods for determining the air permeability of buildings using the fan pressurization method. However, recent works have strongly underlined the need to improve the method's reliability to measure a building's air leakage rate described in this standard. Indeed...

Knowledge of air leakages in building envelopes, in location and magnitude, is essential for economical energy refurbishment of existing buildings. Hence, several measurement methods have been developed. The blower door test provides an accurate integral measurement of a building’s airtightness. However, localisation...

Nowadays, it is unquestionable the fact that building airtightness impacts the energy and ventilation performance of buildings. However, in Mediterranean countries like Spain, air infiltration has traditionally been considered a source of ventilation, which complemented natural ventilation and window airing provided by the...

When testing large buildings, it is possible to calibrate the flow of ventilation fans with the Minneapolis system. The test is run and checked with the pressure sensors in the Minneapolis system and the fans used for calibration can easily be run together with flow from the ventilation fan. By using this method, a 400,000 cubic foot building was...