Can invalid s'chach (mixed with valid s'chach in alternating rows) be valid?
Synopsis
Invalid s'chach (e.g., metal spits) placed in alternating rows with valid s'chach requires valid s'chach to dominate, with practical ways to ensure coverage.
More in Invalid S'chach
When is a sukkah invalid due to too much sunlight vs. shade in the s'chach?
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