The window area and frame are sources of significant heat transfer. The most common material for window frames in Israel is aluminum, and it is not insulated at all. As a result, it gets boiling in summer and freezing in the winter, if you've ever noticed. A part from not being insulated, the aluminum frame is thick, and it allows a double pane glass of just 5 or 6 mm width. Today, there are window frames on the market made of materials like PVC or wood combined with alumin

*Free worksheet with all 20 ideas: https://www.dsearc.co.il/buyingonpaper Are you about to buy an apartment on paper, which means in a building under construction? You will love this new series - 20 items to check before signing an agreement. *First video with Items 1 and 2: https://www.dsearc.co.il/single-post/what-to-check-before-you-buy-an-apartment-on-paper-items-1-and-2 *Second video with Items 3 and 4: https://www.dsearc.co.il/single-post/what-to-check-before-you-buy