Airtightness test

Leaky buildings are a major problem in terms of energy and comfort. ByggaL and the ISO9972 standard now place requirements on builders and clients to ensure an airtight building envelope. Performing a tightness test is not that complicated and is an excellent way for a builder, for example, to quality assure his work. The course will focus on the practical implementation of a leakage test and how to localize any air leakage. Our customized report template provides quick and easy results. This report template is included in the course material.

Close-up of the Blower Door fan


The course participants should be able to perform an airtightness test according to the regulations ByggaL and the standard ISO 9972 and present the measurement results in a protocol.

Target group

Anyone who wants to ensure that the building envelope is airtight, such as builders, consultants, inspectors and property managers.


No prior knowledge is required.


  • Basic knowledge of airtight construction
  • Review of concepts, ByggaL and the ISO 9972 standard
  • Test printing relative to other control methods
  • Calibration
  • Sources of error in measurement, accuracy and calibration
  • The right instrument and sensor for the measurement task
  • Practical pressure test and air leakage detection with accompanying report

Pictures from previous courses


To register, use the button below, send an e-mail to or call 031-704 10 70.

Price: SEK 3,450

Full day course incl. course materials, coffee and lunch.

ATTENTION! The course on February 28 is fully booked.
Vacancies on fully booked courses may occur in case of cancellations. Send an expression of interest to join the queue and get a place in case of cancellation. We reserve the right to cancel the course if there are too few registrations.


Wednesday, February 28, 2024 – Fully booked
Cl. 08.30-16.30
Nordtec’s premises in Gothenburg,
Elof Lindälvs gata 13-15


Full day course


Ventilation measurement


Lars Tobin

Lars Tobin

Civil engineer,
Anneling Tobin Consult AB

Lars is specialized in building, energy and indoor environment technology and has 20 years of experience as a trainer and consultant. This gives Lars a unique knowledge that combines theory with practical applications.


I will answer your questions and guide you to the training that best matches your needs.

Mats Landin

Advice and sales

Mats Landin
031-704 10 85