Movable insulationWilliam K. Langdon1980·379 pages·about 6–9 hours·1 edition1980first published1980Rodale Press · 379 pages · ENGISBN 9780878572984Neutral·Standard read·HabitsAdd to Library▾Your copyOn title page: A guide to reducing heating and cooling losses through the windows in your home.How do you feel?PickReport a problem with this book