Savytskyi, Mykola; Kolokhov, Viktor; Sopilnyak, Artem; Shlyakhov, Kostiantyn; Tytiuk, Andrii
(ДВНЗ «Придніпровська державна академія будівництва та архітектури», 2020-11)
EN: Not so long ago, wooden windows with double frames or twin frameswere installed in our houses. And such windows had many cracks which created a draft andallowed dust to pass through. Since heating costs were relatively ...