Boneh: Difference between revisions
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===Concrete=== | ===Concrete=== | ||
# It is forbidden to pour water on concrete on Shabbat in order to harden it even if one is pouring the water for another purpose like washing one's hands and beneath there is concrete that needs to be hardened. The best option is to use a timer. A worse alternative is to ask a non-Jew to do it using grama, such as pouring the water into a vessel near the concrete which when it overflows spills onto the concrete.<ref>Chazon Ovadia v. 5 p. 277</ref> | # It is forbidden to pour water on concrete on Shabbat in order to harden it even if one is pouring the water for another purpose like washing one's hands and beneath there is concrete that needs to be hardened. The best option is to use a timer. A worse alternative is to ask a non-Jew to do it using grama, such as pouring the water into a vessel near the concrete which when it overflows spills onto the concrete.<ref>Chazon Ovadia v. 5 p. 277</ref> | ||
===Hair Gel=== | |||
# It is forbidden to use unscented hair gel on shabbat, however, scented hair gel is permissible. <ref> Ach Tov VaHessed, Year 5783, Page 113 </ref> | |||
==Building a wall== | ==Building a wall== | ||
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# It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on [[Shabbat]] as long as it doesn’t have a width of a [[Tefach]] as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. <Ref>Rama 315:1, Mishna Brurah 315:7 </ref> If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on [[Shabbat]].<ref>S”A 315:12, Mishna Brurah 315:8 </ref> | # It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on [[Shabbat]] as long as it doesn’t have a width of a [[Tefach]] as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. <Ref>Rama 315:1, Mishna Brurah 315:7 </ref> If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on [[Shabbat]].<ref>S”A 315:12, Mishna Brurah 315:8 </ref> | ||
===Curtains=== | ===Curtains=== | ||
# | # It is permitted to set up a curtain in place of a door even if it is attached at the bottom and top when one's intention is to hang the curtain temporarily (less than a few days). <Ref>Shemirat Shabbat KeHilchata 24:27 </ref> | ||
# Some permit setting up a curtain even for many days (permanently) | # Some authorities permit setting up a curtain even for many days (permanently) on the condition that it is only attached at the top of the curtain, but not on the bottom. However, others hold that this is biblically forbidden. One who is relying on those who permit hanging such a curtain, must take care when putting up a large curtain that it does not fold over while trying to put it up, since if it does fold over it will form a tent on [[Shabbat]]. One can put up the curtain with a partner to ensure that the curtain does not fold over while hanging it <Ref>Shemirat Shabbat KeHilchata 24:28 quotes the opinion of the Rama 315:1 and Mishna Brurah 315:6 as being lenient against the Chazon Ish 52:13 who is strict, but don’t resolve or take a side in the dispute. The Shemirat Shabbat KeHilchata insists on putting it up with two people based on the S”A 315:12 </ref> | ||
# Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) <ref>Shemirat Shabbat KeHilchata 24:29 </ref> | # Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) <ref>Shemirat Shabbat KeHilchata 24:29 </ref> | ||
