Please avoid Pella Architect Series windows to save your family months and/or years of pain. Our home has over 45 Architect Series dougle hung windows installed in the last 3 years that leak water when it rains. You need to do your research to see just how many other familys have been effected by their poor decision to purchase from Pella. Our windows do not latch, so it is impossible to secure our home. We have a mold problem because of the water. Pella refuses to address the problems. They just simply do not care! Do your research!