GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Prosoco Cat 5 vs. peel-and-stick tape

Peter L | Posted in Green Products and Materials on

For exterior OSB joints. Is it better to use the Prosoco Joint Filler caulk/compound or just use peel & stick tape? Which will last longer?

Prosoco is supposedly breathable so it allows moisture to dry. Any feedback in the field?

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.


  1. GBA Editor
    Martin Holladay | | #1

    Here are links to two articles I wrote on liquid-applied flashing products:

    Liquid-Applied Flashing

    A Backyard Test of Liquid-Applied Flashings

    Here are links to two GBA articles on tapes:

    Return to the Backyard Tape Test

    Two Wingnuts Describe Their Backyard Tape Tests

    Personally, I think the easiest approach to sealing OSB sheathing seams is to use a tape like Siga Wigluv, 3M All Weather Flashing tape, or Zip system tape. But other GBA readers may have a different opinion.

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |