00000nam 2200000za 4500 9.843726 CaOODSP 20221107152604 cr ||||||||||| 171117q1986 oncdo |o f|0| 0 eng d CaOODSP eng n-cn--- NH17-145/1986E-PDF Houston, A.J. Improved performance standards for polyethylene sheet vapour barriers [electronic resource] / by A.J. Houston. Ottawa : Canada Mortgage and Housing Corporation, [1986] 16 p. : charts, photos. Cover title. "BTECC Symposium : Guidelines for Air Infiltration, Ventilation and Moisture Transfer; Fort Worth Texas, December 2-4, 1986." Digitized edition from print produced 2015 [for Canada Mortgage and Housing Corporation]. Includes bibliographic references. "This paper presents the findings from two specific research projects related to the deterioration of polyethylene film used as vapour barrier in Canadian housing. As a consequence of the findings from these studies the interested industry and standards writing bodies responded. Their related standard writing activities are discussed. Delivery of reliable future film product is now expected. A method of estimating polyethylene film life is presented here also. A limited review is given also of the Canadian government's housing agency activities, particularly in relation to technical research projects"--Introd. gccst Housing gccst Construction materials Canada Mortgage and Housing Corporation. PDF 409 KB https://publications.gc.ca/collections/collection_2017/schl-cmhc/nh17/NH17-145-1986-eng.pdf