RipCart for Roof Tear-Off (Instructions)

The RipCart is a versatile roofing tool that will save you time and allow you to accomplish more with less work. Great for tear-off, cutting ridge vent openings, roof decks for total demolition, and shingle overlays. Available at www.roofingsupplyusa.com

[@TomBrooklyn]

Is this for shingles or flat? And if flat, how do you keep the blade from getting clogged up?