Windows and load bearing?
We have a wall of windows on the south side of our home, all double pane, house is approximately 16 years old. The home has about 40 windows total on all sides and we've only had to replace glass for one broken seal, and it was on the north side of the house. Windows are all aluminum clad wood, Hurd brand.
Last summer we had two small glass block windows cut into the basement wall on the south side of the house. We talked to the building inspector and the glass block guy and they concluded we could just cut the windows into the concrete basement wall without additional supports or framing. They look great and really add light to the basement, etc.
Today we noticed two apparent broken seal spots inside the windows on the upper level of our south side room. The broken seals appear to be right above the two new glass block windows.
We have some pretty big temperature swings on that side of the house with the winters here in Michigan. But we've been in the house for six years and had no problems except for some loud cracking noises as the temp drops at night in the summer. (We also have a metal roof, so that's part of the noise issue.) We've also had quite a few big snowfalls this year FWIW.
My question: Am I paranoid to think the new glass block in the basement wall made those windows move/give just enough under the weight of the snow to crack the seals? And if I replace them, how do I know it won't happen again?
Thanks for any insights or thoughts.