we have a building here that we use for salaatul fujr, isha, juamah and various daroos througout the week. however all of the brothers are working during the days and the building is closed for thuhr, asr and maghrib most of the time.
What is the ruling on our builind and may we continue to call it a masjid or does it take the title of musullaah? also do we need a fulltime Imaam and muadthin?