bizbrasov.ro/2026/11/04/ferestrele-izoleaza-coresp

Windows that do not insulate properly can lead to significant heat loss and increased heating costs. Replacing old frames may be a long-term solution, while proper ventilation is essential for a healthy indoor climate. During winter, a considerable amount of heat escapes through windows, especially if they are old or poorly sealed. This can lead to higher energy consumption to maintain comfortable temperatures. Fortunately, there are practical solutions to limit heat loss without necessarily replacing windows. Heat loss through windows can account for 20-25% of total heat loss in a home, varying by construction type.