26 Jan '12, 3pm

wall construction material and sequence #green

I am at zone 3B - little rain/wind only in the winter months with no snow. I plan to use the following wall assembly for stucco wall from inside out: Dry wall Cellulose insulation / 2*4 wall Building Paper layer 1 Building paper layer 2 Typar Stucco A few questions: 1. My contractor is trying to tell me that I don't need 2 layers of paper. What would you tell a contractor who is not familiar with green building to make him comfortable with this extra layer of building paper? 2. What type of building paper should I tell him to use? He said that there are many types. 3. Anything he needs to do between the 2 layers of building paper 4. He is familiar with Tyvek but not Typar. Is the installation method the same? 5. He is putting windows in before the house wraps. Is this correct sequence? I am not a builder but I think the wrap should go in and tuck into the windows, so I fig...

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