My perspective is that the spatial separation is determined for each building to its property line (limiting distance) regardless of if there is a building on the other side.
We proceed the same way.This was a good observation...Not sure how they do it in da Great White North, but we measure perpendicular to the building to the interior lot line or imaginary line with buildings on the same lot...
I had an interesting file a few years ago where an F1 generator building was proposed to be built quite close to an F3 low-hazard. The genny building required louvres (unprotected openings) but the F3 was all above-ground ICF (non-combustible, 2hr by appendix D) ... when I first ran the numbers, the spatial separation didn't work, but I knew the designer was a smart cookie and finally figured out that they'd set the spatial separation line close to the existing F3 building. Lesson to remember: that line does NOT necessarily have to be halfway between the two buildings.I believe this situation will be 2 buildings on the same lot, so an imaginary line will have to be drawn between the 2 to assess the limiting distance. But the result will be the same.
Thanks for the input.
Absolutely.Put it where it works better for you...Toward the more "fireproof" or less risk building....I had an interesting file a few years ago where an F1 generator building was proposed to be built quite close to an F3 low-hazard. The genny building required louvres (unprotected openings) but the F3 was all above-ground ICF (non-combustible, 2hr by appendix D) ... when I first ran the numbers, the spatial separation didn't work, but I knew the designer was a smart cookie and finally figured out that they'd set the spatial separation line close to the existing F3 building. Lesson to remember: that line does NOT necessarily have to be halfway between the two buildings.
You bet. I am not designing these buildings, just reviewing. I am not even sure what they are at this point, just answering some preliminary questions from the designer.I had an interesting file a few years ago where an F1 generator building was proposed to be built quite close to an F3 low-hazard. The genny building required louvres (unprotected openings) but the F3 was all above-ground ICF (non-combustible, 2hr by appendix D) ... when I first ran the numbers, the spatial separation didn't work, but I knew the designer was a smart cookie and finally figured out that they'd set the spatial separation line close to the existing F3 building. Lesson to remember: that line does NOT necessarily have to be halfway between the two buildings.