I have a scene that has clouds and shadows which I would like to mask before I continue with my Classification. I am using LC08_L1TP_180073_20141224_20170416_01_T1 which has a pixel QA file.

I downloaded the ArcMap Landsat QA toolbox and used the tool to decode and Extract QA bands. Now I have the resulting raster with values of 0 and 1.

But how do I use this raster to mask the clouds out of the bands? What tool do I use? Do I do it separately for each band or do I do it to the Band stack?