Two-thirds of houses have problems with heat loss around the windows.

Prague - The most money on energy escapes Czech households due to old or poorly replaced windows. More than two-thirds of houses have a problem with heat leakage around windows. This results from a series of measurements taken with a thermal camera conducted by the gas company RWE Transgas during the winter. Martin Chalupský, the spokesperson for the company, said this today.
    "The problem of heat escaping around windows has been documented by our workers in 68 percent of the surveyed buildings. If people were to prevent these leaks, they could save up to thousands of crowns annually," said Tomáš Varcop, a member of the RWE Transgas board.
    Approximately 35 percent of houses have inadequately insulated doors, and heat was escaping through the façade in 32 percent. Thermal leaks in crawl spaces and foundations were recorded by RWE workers in only 12 percent of the buildings. Czechs therefore build their homes on solid and high-quality foundations. Only five percent of houses had problems with heat leaking through roofs.
    Last week, the ecological organization Hnutí Duha also reported that Czech houses are "like a sieve." According to its study, energy-saving measures in buildings, such as better insulation, could save up to 60 percent of energy. For households, this represents tens of thousands of crowns annually.
    Only two percent of the visited buildings had no faults, according to Chalupský. During the winter months, RWE employees surveyed approximately 400 houses to which the company supplies gas. Each received a report on the thermographic measurements with four images and an assessment of the effectiveness of the insulation of the evaluated building.