I have a large green house to dismantle and scrap, planning on using a standard 125mm grinder to cut up the frame, will a normal slitting disk cope or will the aluminium clog it up, if so recommendations for some dedicated disks please.
The thin 1mm discs will work OK, not the fastest but if you use them on the edges of the material instead of the flats, it will help the disc wear faster than it clogs.
Sawzall or plasma would be my choice if there's loads to do.