Newly installed windows leaking – GreenBuildingAdvisor

Our window/door crew finished up today just as storm rolled in, which was fortuitous because it acted as a good stress test. The house is framed with Zip-R and the roof is shingled, but the drainage matrix and siding aren’t on yet, and neither are gutters. 

Out of the ~30 windows and doors in the home, I spotted 4 leaks. I’ve notified the builder, but I was hoping for advice on the fix. These are tilt and turns I imported from overseas, and the crew basically does nothing but installs and replacements of euro windows. We installed the windows as outties. This particular crew was picked by the builder because they were recommended by a local tilt-and-turn manufacturer that I wish to god I had found before I imported….I watched them flash the ROs, install and level the units, place the backdams and foam around the perimeter on the inside with low-expansion foam, and tape all exterior. 

Here’s some video of the leaking units:

https://photos.google.com/share/AF1QipMW4KztORUdYRm7nj4VOZ09_WwvNSmgojKARNk6bWiBpfknXr8z2Sb0N6cA-tkp5w/photo/AF1QipMq3KBxeIl9NA21xIs5Bgj7xxJKLRkn5kdkTYkJ?key=YUdTSG5aSGNyTTZSR2NzR19nQkVDclRsd3l5OUFn

https://photos.google.com/share/AF1QipMW4KztORUdYRm7nj4VOZ09_WwvNSmgojKARNk6bWiBpfknXr8z2Sb0N6cA-tkp5w/photo/AF1QipMu05EGF16lJi6P8BIW0CkcfKCDYF1YYxCF-NNC?key=YUdTSG5aSGNyTTZSR2NzR19nQkVDclRsd3l5OUFn

As always, advice is greatly appreciated!

EDIT: It’s sadly funny that none of the bottom-of-the-line fixed Simonton windows we threw in the detached garage are leaking, but one of the fixed tilt-and-turns in the house is.