Assessment of durability of airtightness by means of repeated testing of 4 passive houses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00331181" target="_blank" >RIV/68407700:21110/18:00331181 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Assessment of durability of airtightness by means of repeated testing of 4 passive houses

Original language description

Durability of building airtightness was assessed by means of repeated airtightness testing of the studied houses over a period of 11 years. All the tests were performed by the same technician using the same equipment. The technician always prepared the building in the same way and followed the same measuring procedure. The majority of the tests were carried out in the same period of year under similar climatic conditions. The differences between the test results should reflect namely the impact of ageing and the impact of the air barrier system modifications. Information concerning interventions to the building envelope was collected from the building users or the caretaker. The impact of such interventions on the building airtightness is traceable. The buildings were built in 2007 using the same construction system with an emphasis on the quality of execution of the air barrier system. They have a very similar size, the same timber structure and the same air barrier system (PE foil, butyl tapes). Building A and D are an inhabited single family houses. Building B is a showhouse of the construction company and the building C serves as training centre and conference room. This allows a comparison of the potential impact of different users’ behaviour on the airtightness durability. In all the buildings, airtightness has deteriorated over 11 years. The n50 of buildings A and B increased from 0.5 h-1 to 0.7 h-1. The n50 of building C and D increased more significantly (due to interventions into the air barrier system carried out with little concern about airtightness). Good airtightness durability can be achieved if: - the air barrier system is designed and executed carefully - the users respect some basic restrictions concerning the modifications of the building envelope - all interventions into the air barrier system are properly repaired The results confirm that the airtightness decreases namely during the first years of the building service.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20103 - Architecture engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

39th AIVC Conference 7th TightVent Conference 5th venticool Conference Smart Ventilation for buildings Proceedings

ISBN

978-2-930471-53-2

ISSN

—

e-ISSN

—

Number of pages

10

Pages from-to

55-64

Publisher name

AIVC INIVE EEIG

Place of publication

Brussels

Event location

Antibes Juan-Les-Pins

Event date

Sep 18, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—