TightVent Europe newsletter issue #08 - May 2015

The March QUALICHeCK workshop in Lund—co-organised with TightVent—was a good occasion to witness the progress made in the Member States to foster better envelope and ductwork airtightness and better ventilation system performance. Regulation is clearly the strongest driver, and gets even stronger with converging private initiatives; however, the successful Swedish experience with airtight ductwork and quality ventilation systems shows that it is not the only route to consider.

Newsletter n°5 de l'Observatoire des Bâtiments Basse Consommation - La perméabilité à l’air du bâti et des réseaux aérauliques

This newsletter from the French "Observatoire des Bâtiments Basse Consommation" (Observatoire BBC) gives information on the airtightness of new buildings, based on a comparison between the buildings that have got the "BBC Effinergie" label  and buildings that did not get this label.

Airtightness testing requirements for Passive House and EnerPHit certification

This document provides guidance for the specific airtightness testing requirements for Passive House & EnerPHit certification, taking into account the existing differences in the calculations and methodologies when compared to the UK Building Regulations. The guide includes information on the testing protocol, the volume calculation and the test method.


National plan for increasing the number of nearly zero-energy buildings as required by Directive 2010/31/EU on the Energy Performance of Buildings (EPBD recast) - Bulgaria

Article 2 of the EPBD recast defines a nearly zero-energy building as “a building that has a very high energy performance, as determined in accordance with Annex I [of the Directive]. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby”.

Air Permeability of Building Board Material

This presentation discusses the air permeability of building board materials used in the airtight layer of timber structures. The laboratory test was performed of different samples: plasterboard, oriented strand board, cross laminated timber and surface coating participle board. The methodology of this laboratory test is described in the standard STN EN 12114. The significance of this work consists in determining values of air permeability of different building board materials. The plasterboard and cross laminated timber samples met requirement of air permeability q50< 0.1 m3/ (m2.h).