Very strongly disagree. Your statement is only true when both are safely under some outer layer of material. You wrap a frame structure in just Tyvek and you are screwed the first big wind blow. You sheath your building in a product like zip and you are basically weather-protected for months at a time, whether it rains, snows, wind blows etc.
There are several builders on youtube that explain the differences and merits. RR Buildings in particular has many videos showing their process and are in fact just now posting a build series where they are using the other brand, the blue stuff, taped, and it is saving them from material supply delays in roofing metal, while the weather turns. And while they wait forever for windows and doors. The building is closed in, interior work can advance. Tyvek / thin film vapor barrier couldn't even begin to provide such protection.
Um, the words that you so graciously highlighted, says it all. "there is little difference in
end performance" Meaning, yes, after the siding is up and shingles on.
I am not a Tyvek fan, but it does just fine(as does synthetic felt) with wind here on the edge of the prairie if you use cap nails. And yes, zip does give some weather resistance to prolonged construction. Or you could "get er done" and save a boat load. Hense why I said it was a trade off.
So what do you disagree on exactly?
why would one deck a roof without roofing materials onsite?
Having lived in Temecula CA for 5 years, I really don't remember having any issues with any rain in the LA area. Rains 35 days a year, and most of that is in December, Jan, and Feb. Rainiest is 6 days in January, that is our driest month here, and really no issues building houses without zip.
Could see Zip be a big plus in western Oregon and Washington State.
I find it odd as well your so adamant about saving money with PVC airlines, but tout one of the most expensive exterior sheathing products.
Or is it your just cross with me?
