This is the frame that I'm using for my sukkah. In the event that the bars forming the frame's roof cannot be removed, would they completely posul the flat sechach I might construct beneath them? If so, what considerations must be undertaken in order to construct a sukkah with a slanted roof? My understanding is that a slanted roof does not posul the sukkah (Halacha 7) but that, aside from not being optimal, there are complications to consider. I cannot seem to find a source which addresses these complications, though. Obviously, my preference would be if the four bars forming the roof just didn't posul it in the first place. This seems unlikely, though.