Quote:
Originally Posted by tuccillo
I don't believe that is true, at least according to a contractor I spoke with. The issue of raising the floor comes down to how far above grade it is. If it is far enough above grade then you don't need to raise it if you are installing a mini-split system. At least, this is how it was explained to me by someone who I believe understands the building codes. A vapor barrier is required either way.
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I spoke the planning dept before I got my permit, the floor does NOT need to raised.
Only if the slab is at or below grade. None of them I've seen are.
The contractors that don't know the code will rope you into spending money for work not needed.
The reason for the slab to visible is for termite inspection and water infiltration.
This can also be accomplish be excavating with a shovel out a few inches of dirt.
As far as A/C heat, a load calc needs to be done to determine if an additional unit is needed, most homes don't need it.
Vapor under existing slab is not required, it is not stated anywhere in the code.
You are not required but really should insulate the lanai ceiling with R-30
Windows, if you but the wrong glass that almost all contractors are using and you have sun on the glass it will get hot.
You need the correct solar glass.
see my other thread
here about glass.
It is really crazy about the miss information.
