during a storm additionally the corrugated region 10 the lateral corrugated regions 14 and the mounting tracks 28 may be configured to withstand a pressure differential that reciprocates from about 0 to at least about 40 psf across first and second sides of the sheet 2 when the sheets are mounted the pressure differential may reciprocate from about 0 up to at least about 150 psf across the first and second sides of the sheet 2 it shall be understood by those having skill in the art that u201c withstand u201d refers to the sheet sheets and or mounting tracks not being subject to failure under the pressure differential for example failure may mean a sheet or sheets breaking away from the mounting tracks a sheet or sheet tearing a mounting track or tracks loosening and the like referring to fig1 4 and 5 when mounting the sheet 2 the user generally places the shank of the track fasteners 32 into the mounting slots 22 24 of the sheet cross sectional lines in fig4 have been omitted for clarity the user may then secure the sheet 2 to the track 28 by utilizing a wing nut 37 or other suitable.