the nails are driven through the central region 18 the nails 28 have a shank 34 with a flat head 36 located at a first end and a point 38 located at an opposed second end the nail head 36 is preferably of the flat head design and the shank 34 is preferably serrated to form a ringed shank or a screw shank fig2 is a plane view of the first roofing fastener embodiment 10 illustrating the positions of the central region 18 nails 28 and 28 u2032 and of a typical arrangement of holes 26 in annular region 20 also shown is the disposition of the centerline 40 fig3 is a cross sectional side view of the roofing fastener 10 attached to a substrate 44 and shows the disk 12 in a curled partially inverted configuration as it would appear when being flexed by an upward wind load the inversion of the disk 12 which is exaggerated for illustration purposes moderates shear forces applied to the multilayer roof system 42 by the peripheral edge 22 of the disk 12 reducing the likelihood of the first layer of roofing material 30 being damaged by the peripheral edge of the disk the illustrated multilayer roof system 42 has first layer 32 applied directly over the roof deck 44 and affixed thereto by a series of roofing fasteners 10 on top of the first layer 32 held to the roof deck 44 by roofing fasteners 10 is a layer of roofing adhesive 30 such as tar or other roof sealant is applied the roof adhesive penetrates through the holes 26 in a disk and bonds to the first layer 32 a second membrane 48 is applied over the adhesive layer to form a water impervious multilayer roof system 42 an example.