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valley flashing

  1. Valley Flashing question

    Hi, Without getting into a debate as to "Why would I"..Are there any professional roofers that can tell me:When flashing a valley using Ice & water membrane AND aluminum flashing..... What goes on FIRST?.....The ice & water then the flashing.....OR the flashing then the ice and water?? I've...
  2. Valley flashing with zip panels

    Hi, I'm about to shingle a roof that's been sheated with huber zip-panels. I feel that the valleys should be better protected than only the 6" wide valley tape. Is it common practice to only use the tape instead of metal valley flashing or ice and water in the valleys when using zip roofing...