Building pressurization tests in a wind tunnel: design and characterization of a reduced scale experiment facility

Purpose of the work
This study is a part of a thesis work that aims to evaluate the error induced by the wind during building pressurization tests performed according to the ISO 9972 method on a reduced model in controlled laboratory conditions.
Method of approach

Pressure build-up in very airtight buildings – patience avoids measurement errors

Purpose of the work
How long do you have to wait after having adjusted the fan during an air permeability measurement until the pressure difference has practically reached its final value? Which parameters determine the required waiting time?
Method of approach

Customizing the BlowerDoor method for leak detection in the aircraft cargo hold

Purpose of the work
We investigated whether leak detection methods from the building sector can be customized to find leaks in the paneling of an aircraft's cargo hold. Airtightness values of the cargo area are used as reference to determine how much extinguishing agent has to be carried during the flight.
Method of approach

Testing air tightness products

Content of the contribution

Efficient and safe execution of difficult air seal joints - liquid adhesive

Purpose of the work
What are the benefits of liquid and sprayable seals when it comes to ensuring permanent air tightness of components that are connected on construction sites? What is the cost benefit of spraying compared to adhesive tape that is applied manually?
Method of approach
We captured pictures and data during a renovation project and analyzed the quality of the air barrier.
Content of the contribution

Damaged timber girders due to negative pressurization - root causes and action plans

Purpose of the work
Especially when dealing with indoor pools the existing ventilation system is often used for negative pressurization on the building envelope to protect the roof structure from damage caused by convection. As seasons change, however, air leaks from the outside lead to high indoor humidity fluctuations. These fluctuations may cause timer shrinkage which ultimately might damage the roof structures consisting of laminated wood.
Method of approach

FLiB-Qualification: Training for tradesmen – Airtight sealing

Purpose of the work
Only qualified specialists can deliver airtight building envelopes. Unfortunately, such airtight envelopes still have many defects after completion, causing all kinds of adverse effects. This course is intended to train and qualify contractors and workers to ensure that they are able to seal building envelopes without instructions, safely and without defects - as far as this is possible.
Method of approach

Pages