Seals Because of the distinction in strain involving the IGU and the exterior, seals are constructed into the IGU to equalize force. Pictured previously mentioned: Sash window grooved out browse for draught proofing method. A router and 8mm straight flute cutter is accustomed to Slice a neat, precise groove. Caulk https://fire-resistant-materials76645.bloggactivo.com/35287671/sash-windows-things-to-know-before-you-buy