A detailed computer analysis was conducted to investigate the effectiveness of three alternative practices for controlling moisture accumulation in the walls of manufactured housing during the winter. The three practices included (1) providing an interior vapor retarder, (2) using permeable sheathing and siding, and (3) providing an outdoor ventilated cavity. The current HUD Manufactured Home C...

Energy recovery ventilators (ERV) are increasingly present in residential environments to enable energy-efficient provision of controlled outdoor air ventilation. In this work, we investigated pollutant transport through a typical ERV as potential pathway for re-entrainment indoor pollutants into the ventilation supplied an space. Specifically, transfer volatile organic compounds (VOCs) sandwic...

There are many indoor pollutants in the residential buildings. High insulation and tightness in buildings in order to increase energy efficiency and to lower energy costs is led to the indoor air quality problems. To provide sufficient fresh air and to promote indoor air quality at acceptable level, it is needed to increase ventilation rate to overcome such pollutants. The aim of this paper is ...

PURPOSE To investigate the relationships between symptoms compatible with the sick building syndrome (SBS) in adults and building dampness and ventilation in single-family houses. METHODS Within the Swedish BETSI study, a national sample of single-family houses were inspected by professional building experts, and adults living in the houses answered a questionnaire on SBS. Relationships betwe...

The article presents a method for determining the size of supply and exhaust openings to ensure effective aeration barn in calm weather. results multivariate calculations ventilation air flow rates two modes are given: with organization slot full opening openings.

Due to insufficient ventilation, public toilets have become incubators for cross-infection during the pandemic. WHO has proposed an approach improve indoor including ventilation in isolated spaces like toilets, by applying 10L/s/person criteria, and keeping fans running effective ventilation. However, less air inflow many causes We ever found colony forming units (CFUs) staying surrounding floo...