AIRTIGHTNESS MEASUREMENTS OF RESIDENTIAL BUILDINGS IN ULAANBAATAR, MONGOLIA

Abstract

Good airtightness is essential to r ealize en ergy efficient building s . However, the issue of building airtightness has not been widespread yet in Mongolia. Thi s study intends to evaluate the airtightness performance of single family residential houses in Ulaanbaatar . The normalized test ISO 9 972 (Ther mal performance of buildings Determination of air permeability of buildings Fan pressurization method), known worldwide as the “Blower doo r test” is used to assess airtightness . This paper presents the results of a blower door test conducted i n eig ht houses The measured air change rate ( n 50 ) fluctuated from 0.2 1 to 12 6 ac/h at a 50Pa pressure difference betwe en the ind oor an d outdoor environment of the tested houses.