English

Home renovation is a positive action "Which can bring out the best of an older home's original character, and provide the occupant with modem comfort and efficiency. Renovation work can, however, uncover unpleasant surprises in the existing construction which require special precautions to avoid health hazards. One such unpleasant surprise is the presence of lead-based paint. Lead-based paint was used in virtually all older houses. The renovation of painted surfaces by most conventional means can create a distinct health hazard to both the renovator and the occupants of the home.

Natural ventilation coefficient curves were generated using the NatVent 2.0 software, for naturally ventilated livestock building models with a total of 60 design variations including 5 building lengths, 2 sidewall opening heights, 3 ridge opening types, and the presence or absence of end wall openings. An average natural ventilation coefficient curve versus wind angle is also presented. As well, a general design natural ventilation coefficient has been developed and could be used without introducing major errors.