No Flashing on Windows with Tyvek Seam Taped to Nail Flange
I put an addition on my house last fall and the contractor installed the nail fin windows directly to the osb sheathing without any flashing around them. He then wrapped the house in tyvek and tyvek seam taped around the nail fin overlapping from bottom to top. I questioned him on this and he said he’s been doing this thirty years and has never had one leak. I asked about flashing and he said I could flash over the tyvek.
should I remove the seam tape and flash the nail fin to the osb sheathing and then over lap the top fin with tyvek? What’s the best option?
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