BD2015

The book of proceedings of the 9th International BUILDAIR Symposium "Airtight Buildings, Thermography and Ventilations Systems in Practice", held on 8-9 May 2015 in Kassel, Germany. Contains 18 abstracts.

After long, controversial discussions, the main Swiss standard on thermal insulation and airtightness, SIA 180, was finally amended in summer 2014. In addition to changing the permitted limits to the envelope-area value of q50, it also gives some indications as to the airtightness design and its implementation in planning and construction...

Stricter requirements, e.g. for thermal insulation and moisture protection, as well as progression in energy-efficient building have led to the development of special building materials and metrological equipment. Over the last two decades, airtightness measurements, frequently also called “BlowerDoor tests”, have become increasingly...

Wooden flat roofs are being increasingly constructed without the tried and tested sub- ventilation layer of the sealing sheet. However, some regulations refer to the high risk of damage to such structures if the sealing on top of the insulation is largely vapor proof. This research was to analyze whether more recent recommendations...

The German Industrial Standard DIN 4108-7 has been the standard to stipulate the requirements as well as recommendations for planning and implementing airtight construction for a long time (since 2001). However, the principles of airtight building have not yet been well established in general building practice...

In order to achieve the most accurate and repeatable – and therefore comparable – measuring results possible when testing the airtightness of buildings, you need testing devices that are able to measure with a level of accuracy adjusted to the intended purpose. If the users want to guarantee the accuracy of the measuring devices, they can...

To review the impact of air tightness testing in construction in Ireland since the introduction of mandatory testing under the National Building Regulations in 2008 and the subsequent enforcement of a National Certification Scheme. Review of National Building Regulations in 2008 & 2011 and implications on buildings being...

Proposals for solutions in accordance with German standard DIN 4108 Teil 7 What does real life look like? What can actually be solved? Challenges, interface issues between the different trades and crafts, and possible suggestions for solutions. The industry-wide educational and training center of the Baden-Württemberg...

Can the minimum air change in naturally window-ventilated units be covered only through leakages? In general, the infiltration airflow rate is dependent on meteorological conditions, especially wind pressure on the building / unit, and with regard to thermal effects, the temperature differential between the interior and the exterior...

Many top-floor apartments and single-family homes from the ’80s and ’90s had been insulated in the roof area using aluminum-clad panels or PE foils and had frequently been covered with profiled wood. These buildings suffer from a significant lack of airtightness that can be retrofitted from the inside with a high technical quality...