7src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2173443/fullWearing protective mask, Nick Muia of Dominion Insulation sprays rock wool insulation in the attic of a house on Saskatoon Dr., Etobicoke. Muia's olde(...)11/1/1977Bull, RonTSPA_0009003F7720233369103src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2173445/fullCellulose fibre is blown into an attic to increase the insulation beyond the amount provided by the original fibre glass bats laid down when the house(...)1/14/1978Bull, RonTSPA_0009004F7720234369104src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2173519/fullCosy kitchen: Mary Jo Brennan, an energy conservation inspector with Toronto Hydro, demonstrates how to caulk a door frame in a kitchen in Toronto's East End11/21/1984Olsen, Bob, 1931-2022TSPA_0009005F7720264369134src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2173521/fullOttawa has banned poisonous ureaformaldehyde foam insulation in thousands of Canadian homes8/9/1978Loek, DickTSPA_0009006F7720265369135src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2173523/fullAsbestos clean-up7/31/1980Spremo, BorisTSPA_0009007F7720266369136src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2244196/fullGast & Atchison. Manufacturers of Fire and Frost-Proof Mineral Wool Steam Pipe and Boiler Covering 18911891-LETTERHEAD-GAST-NORMAN-DONATION7736935389045src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2247858/fullThe Toronto Metal WeatherStrip Co.approx 1930CA-1930-WEATHERSTRIP-VS7976696390297