of airflow passages 46 filtering fabric 34 may cover only interior edges 64 of vent panels 32 alternately as depicted in fig6 b filtering fabric 34 may extend from bottom side 68 of vent panels 32 up over inner openings 56 across interior surface 52 of top panel 30 down over inner openings 56 on the opposite side and onto bottom side 68 on the opposite side the filtering fabric 34 may be secured to interior edges 64 bottom side 68 of vent panels 32 and interior surface 52 of top panel 30 as required 0044 fig8 depicts an alternate embodiment of the ridge vent 10 adapted for use where it is desire to ventilate a shed style roof 70 in contact with an exterior wall 72 shed roof vent 74 generally includes a generally planar top panel 76 vent panels 32 and filtering fabric 34 planar top panel 76 includes flange panel 78 extending along its length vent panels 32 are disposed beneath top panel 76 and are stacked and secured in a similar fashion to ridge vent 10 filtering fabric 34 is attached along the bottom side 68 of the lowermost vent panel 32 and to planar top panel 76 on or near flange panel 78 filtering fabric 34 may also be attached to cover the interior edges 66 of vent panels 32 alone fasteners adhesives heat fusing or other suitable techniques may secure filtering fabric 34 to planar top panel 76 and vent panel.