Roof cover fastener

A roof cover fastener that attaches roof materials to lightweight insulating concrete and other roof deck materials, the fastener comprising

• a. a cover plate, the cover plate comprising:
• a planar body having a perimeter,
• a central aperture disposed centrally in the body,
• a first annular rib formed into the body and encircling the central aperture,
• a second annular rib formed into the body and encircling the first annular rib,
• a first channel separating the first annular rib from the second annular rib, wherein the first annular rib and second annular rib extend above the first channel and wherein the first channel has a flat planar first contact surface, the flat planar first contact surface configured to contact a roof material without penetrating the roof material,
• a first circular shaped medial aperture and a second circular shaped medial aperture disposed in the first channel between the first annular rib and the second annular rib;
• b. a first auger element, the first auger element comprising:
• a first end and a second end,
• a head coupled to the first end,
• a tip coupled to the second end, and
• a thread crest with a thread root extending from the second end towards the first end;
• and
• wherein the first circular shaped medial aperture and the second circular shaped medial aperture are both configured to receive an auger element as it is driven into the roof material.