00000nam 2200000za 4500 9.844834 CaOODSP 20221107152830 cr ||||||||||| 180109s1989 oncad |o f000 0 eng d CaOODSP eng n-cn-on NH17-172/1989E-PDF CMHC Kitchener townhouse study of soil gas ventilation as a remedial measure for methane entry into basements [electronic resource] / prepared for the Research Division, Canada Mortgage and Housing Corporation by CH2M Hill Engineering Ltd. Kitchener townhouse study [Ottawa : Canada Mortgage and Housing Corporation], 1989. [68] p. (various pagings) : ill., charts + 1 appendices ([57] p. : charts) "June 1989, (Second Issue)." "Project: KI23918.AO." Digitized edition from print [produced by Canada Mortgage and Housing Corporation]. Includes bibliographic references. "Methane entry into basements is a widespread problem for housing structures situated close to either natural or manmade sources of methane. This study was aimed at determining a solution to a methane problem at a group of townhouses situated in Kitchener, Ontario. The source of methane at this site originates from nearby buried refuse. Various remedial solutions including passive venting systems installed at foundation levels and perimeter gas collection systems have proven ineffective. More expensive solutions, such as the removal of onsite refuse, have also been suggested"--Abstract, p. ii. gccst Housing Canada Mortgage and Housing Corporation. Research Division. CH2M Hill Engineering Ltd. Canada Mortgage and Housing Corporation. PDF 2.26 MB https://publications.gc.ca/collections/collection_2018/schl-cmhc/NH17-172-1989-eng.pdf [Main report] PDF 942 KB https://publications.gc.ca/collections/collection_2018/schl-cmhc/NH17-172-1989-1-eng.pdf [Appendices]