Q. Re- question 3295 regarding the permit for someone traveling by plane to face the bathroom wall or door while davening. Does the same Heter (permit) apply for someone facing in the street or his window a construction portable toilet?
A. Although in the case of the bathroom plane we mentioned that Poskim are lenient, in this particular situation Horav Shlomo Miller's Shlit'a opinion is that one should avoid davening or saying any words of Kedusha facing a construction portable toilet.
This applies even if the walls and door are of two layers, since they are mainly made for the purpose of the inside room and not for any room on the outside, and unlike an airplane, they are placed on open spaces.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a