I am having difficulty in understanding NYS Codes concerning PWF’s.
I have four (was three) questions. Two about specific codes, and I can’t find information in the Code to answer my third question.
First. For 404.2.3, what is meant by “height of fill”? Is this the fill INSIDE the foundation walls, or outside? Do I need a “Crawlspace” underneath joist floors, or can I have the level of dirt (with sealed sheets of plastic on top to be in between the dirt and the bottom of floor joists) at the same height as the fill on the outside of the foundation. I only planned on digging trenches the width of the required footings for the foundation walls to support the 1st and 2nd floors. Or is this not allowed?
Second, how do I determine what thickness of plywood will I need? Yes I will be hiring an architect to design the plans, but before I begin spending money on professionals, I want to make sure there are enough available funds to build this project, so I am attempting to get an estimate on the cost of the project. If the initial estimate is over the budget then the project won’t even be started. Is the spacing of the studs referred to in the table discussing the studs for the foundation, or the studs on the walls above?
Third, I can’t find in the code any mention about the spacing of the studs in the wall to support a one and/or two story building with a truss roof. I believe the foundation needs to be 4′ tall (with 8″ above the ground), is this correct as well. So for a 4′ tall foundation, what would the spacing of the 2×6 studs need to be to support both a 1 story and 2 story building. This expansion will be 1/2 – 1 story and the other 1/2 – 2 story.
Fourth question is I have gone through NYS codes, and other installation “guides” for PWF’s, and I must be misreading them because it doesn’t look like plywood is required on the inside of the pwf, even when it indicates inside fill is needed when the backside fill meets certain criteria. Since I don’t want a crawlspace (if that is allowed) then will I need to have plywood on the inside side of the foundation?
Thanks again for all the help