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Waterproofing window frames in shower tub surrounds

🏠 homeproduct problemSingle report ●●●●● severity 4/5

A DIY renovator is unsure how to properly waterproof a window frame integrated into a tub surround installation to prevent water damage, noting the current structure appears to be made of foam.

Who's affected: A DIY home renovator and possibly others installing tub surrounds around existing windows.

⚠️ Single report. This is one person's account. We mark it so until more voices confirm it.

What people do today

🔧 Fix this

Ideas a builder, maker or community group could start on:

  1. A step-by-step digital guide or interactive tool that identifies window-to-shower integration types and specifies required waterproofing materials.
  2. A pre-fabricated, adjustable PVC window flashing kit designed specifically for retrofitting tub surrounds to window frames.
  3. A marketplace service connecting DIYers with specialized bathroom waterproofing consultants for remote project review.
I want to build this

Real voices

“How can I make a window frame in a shower area watertight? I am working on installing a tub surround direct to stud.”

Source: Stack Exchange (diy) · CC BY-SA 4.0, user-contributed content from Stack Exchange; summarized and modified

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