I've never seen one of these work for more than 20 minutes without jamming up for a good 15 minutes. Its nice for the few minutes it works. My foremen like using them. They'll get 1 to my 5 rows. It may save your back but it absolutely does not speed anything up. It makes longer days.
Hi sir, can you justify the securement limited to cover board/ insulation board only? or it can be secured to the substrate either RC roof or Metal roof. Thank you.
