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===Impervious to Impurity=== | ===Impervious to Impurity=== | ||
# One may not use food as [[Schach]] since it is susceptible to impurity.<ref>Rambam ([[Sukkah]] 5:3)</ref> | # One may not use food as [[Schach]] since it is susceptible to impurity.<ref>Rambam ([[Sukkah]] 5:3), Chazon Ovadia Sukkot pg. 19</ref> | ||
# One may use spices which are only meant to be smelled or flowers which are only meant as decoration as [[Schach]] since they are impervious to impurity.<ref>Rav Ovadyah Yosef in Chazon Ovadia ([[Sukkot]], p. 23)</ref> | # One may use spices which are only meant to be smelled or flowers which are only meant as decoration as [[Schach]] since they are impervious to impurity.<ref>Rav Ovadyah Yosef in Chazon Ovadia ([[Sukkot]], p. 23)</ref> | ||
# Even things that only can become tameh midirabanan are not kosher for sechach.<ref> Chazon Ovadia Sukkot pg. 21</ref> | |||
===Bamboo Mats=== | ===Bamboo Mats=== | ||
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* The Magen Avraham 629:9 permits using metal nails to support the poles of the [[sukkah]] since they don’t directly support the [[schach]]. For example, the Bikkurei Yacov 629:15 writes that it is permitted to place [[schach]] on top of wooden poles on top of walls which are susceptible to impurity. The Chazon Ish (O.C. 143:2) argues since we can’t distinguish between different layers of [[schach]] and simply state the top layer of kosher [[schach]] is supported by another layer that is in turn supported by an item that is susceptible to tumah. Rav Schachter (“Inyonei [[Sukkah]]”, min 44-6, 62-4) noted that although the Chazon Ish’s argument is reasonable, the minhag follows the Magen Avraham and allows placing [[schach]] on top of planks on top of a metal frame.</ref> After the fact, if the [[schach]] was placed directly on metal, it is kosher. <ref> Mishna Brurah 629:22 and 630:58 </ref> | * The Magen Avraham 629:9 permits using metal nails to support the poles of the [[sukkah]] since they don’t directly support the [[schach]]. For example, the Bikkurei Yacov 629:15 writes that it is permitted to place [[schach]] on top of wooden poles on top of walls which are susceptible to impurity. The Chazon Ish (O.C. 143:2) argues since we can’t distinguish between different layers of [[schach]] and simply state the top layer of kosher [[schach]] is supported by another layer that is in turn supported by an item that is susceptible to tumah. Rav Schachter (“Inyonei [[Sukkah]]”, min 44-6, 62-4) noted that although the Chazon Ish’s argument is reasonable, the minhag follows the Magen Avraham and allows placing [[schach]] on top of planks on top of a metal frame.</ref> After the fact, if the [[schach]] was placed directly on metal, it is kosher. <ref> Mishna Brurah 629:22 and 630:58 </ref> | ||
# One should ideally avoid [[tying]] the [[schach]] down with a material that would not serve as kosher [[schach]] if the [[schach]] would be unable to withstand regular wind independently.<ref> Be’tzel Ha’Chochma 5:44</ref> However, many poskim always permit one to tie down [[schach]] with material that is only invalid as [[schach]] mi’derabanan (such as natural materials).<ref>R’ Vosner cited in the Beit Levi Cheilek 4, pg. 23. Rav Ovadia Yosef (Chazon Ovadia p. 24-5) writes that it is permitted to use a material that is only rabbinically invalid in order to hold up the [[schach]] since the entire issue of maamid is only a gezerah, so the rabbis would never have instituted a gezerah l’gezerah. This is based on the opinion of the Ritva ([[Sukkah]] 11b). Rav Schachter (“Inyonei [[Sukkah]]”, min 44-6, 62-4) agreed, though he questioned it because this seems to fall into the category of a double d'rabbanan and not a gezerah l’gezerah.</ref> | # One should ideally avoid [[tying]] the [[schach]] down with a material that would not serve as kosher [[schach]] if the [[schach]] would be unable to withstand regular wind independently.<ref> Be’tzel Ha’Chochma 5:44</ref> However, many poskim always permit one to tie down [[schach]] with material that is only invalid as [[schach]] mi’derabanan (such as natural materials).<ref>R’ Vosner cited in the Beit Levi Cheilek 4, pg. 23. Rav Ovadia Yosef (Chazon Ovadia p. 24-5) writes that it is permitted to use a material that is only rabbinically invalid in order to hold up the [[schach]] since the entire issue of maamid is only a gezerah, so the rabbis would never have instituted a gezerah l’gezerah. This is based on the opinion of the Ritva ([[Sukkah]] 11b). Rav Schachter (“Inyonei [[Sukkah]]”, min 44-6, 62-4) agreed, though he questioned it because this seems to fall into the category of a double d'rabbanan and not a gezerah l’gezerah.</ref> | ||
# One shouldn't use [[schach]] with a foul odor or whose leaves are falling off because there is a worry that the person may come to leave his [[sukkah]] because of the smell or the leaves falling on him. <ref> Rambam ([[Sukkah]] 5:1), Shulchan Aruch 629:14 </ref> After the fact, it is valid. <ref>Rambam ([[Sukkah]] 5:1)</ref> | # One shouldn't use [[schach]] with a foul odor or whose leaves are falling off because there is a worry that the person may come to leave his [[sukkah]] because of the smell or the leaves falling on him. <ref> Rambam ([[Sukkah]] 5:1), Shulchan Aruch 629:14, Chazon Ovadia pg. 30 </ref> After the fact, it is valid. <ref>Rambam ([[Sukkah]] 5:1)</ref> | ||
==Sukkah Built Underneath a Tree or House== | ==Sukkah Built Underneath a Tree or House== |