Sunday, January 5, 2020

halacha - Sechach supported partially by metal


For those who are careful to only support their sechach on sechach-eligible materials, how much does it matter if a small amount of the sechach inadvertently rests on non-sechach-eligible materials?


For example, before I put my bamboo-strip sechach mat on top of my sukkah frame, which is made of metal tubes, I put wooden boards on top of the frame to support the sechach. If the metal uprights poking up above the top of the frame at the corners happen to reach above the level of the boards, they may end up poking up a corner of the sechach. Would such a sukkah be totally non-compliant with the sechach-eligible-support rule, totally compliant, or non-compliant just near (how near?) the poking metal?



Answer



In a discussion of the whole issue of maamid, the Chazon Ish writes:



דסכך הנסמך על מקבל טומאה יש לומר דנעשה סכך פסול, וחברו הנסמך עליו הוא כדין נסמך על דבר שפסול לסכך בו



So it sounds like he's saying that no part of the sechach may rest on something that is mekabel tum'ah (with the exception of a stone wall, as he says further), and that if it does, it becomes invalid (according to the opinions that disqualify such sechach - as Gershon noted, the accepted halachah is that it's okay after the fact).


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