I came across this yesterday for the first time. So I hope I can get some good discussion [and answers].
This home is a 2 story vinyl clad home with a brick veneer on the front. The distance between each home is approx. 15 feet. The neighboring home is vinyl clad as well. Here’s my question, the exterior wall that faces the neighbors home has 1/2" sheetrock under the vinyl siding, then the typical OSB sheathing under that. All other exterior walls are sheathed with just the OSB, no sheetrock. I got curious and checked the neighbors exterior wall and it is sheathed the same, vinyl/sheetrock/OSB.
I can only guess that this is some sort of “fire” code. I couldn’t find the exact code in the book *. My problem was that there were several gaps and seperations between the vinyl and the sheetrock, exposing it to the elements.
As seen here -
Front and rear view of exterior -
Thoughts, comments !!!?*