A field study was carried out to evaluate the effectiveness of air leakage sealing techniques for reducing air infiltration in houses. Presealing and postsealing air leakage tests were performed upon 82 single detached houses inWinnipeg or southern Manitoba. All houses were placed under a negative pressure, and leakage sites were identified using smoke pencils. Windows and doors were weather-stripped and other unintentional openings caulked and sealed using specified materials and techniques.
Factsheet focuses on some of the simplest and lowest cost measures available to both homeowners and renters for reducing heat loss. Gives basic information on methods and types of caulking and weatherstripping, including installation.
Sixty five houses in Ontario, Canada, were air tightened with the aid of fan depressurization. The average percentage reduction equivalent leakage area for all houses was 36%. An improvement in comfort was noted. No significant changes occurred in the overall number of moisture problems but there was a definite change in the type of problem. The net fuel reduction for the total sample was 4.8%.
Suggests draughtproofing and installation of controllable ventilation when retrofitting older residential buildings in the UK. Use of extract fans to remove moisture at source is recommended. The energy savings obtained in four case studies are presented.