موضوع: деревянные окна оконные блоки

Expect to pay more to have an expert set up your wooden windows. Wood windows are identified for their natural insulating properties, but efficiency will fluctuate between window varieties. Power STAR certification: The shaded parts of the map present the place the window meets regional Energy STAR performance standards. U-factor: Measures how properly a window stops heat movement on a scale of 0.10 to 1.20. The smaller the quantity, the higher. Solar heat gain coefficient (SHGC): Measures how n...