Wind resistant siding panel

An elongated siding panel for mounting to a building with at least one fastener, the at least one fastener having a head and an elongated shank, the siding panel being structured to resist wind loading, the siding panel comprising:

• a body of a first course of a siding panel;
• a lock with a receptacle being open in a downward direction when mounted, the receptacle for receiving a tab of a second course of a siding panel mounted to the building above the first course of a siding panel, the engagement member further extending into an adjacent fastening hem;
• and the fastening hem including a base member and an engagement member
• the engagement member extending outwardly from the base member and away from the building when the siding panel is mounted to the building, the engagement member including a first leg, a second leg, and an apex portion, the apex portion extending between the first and second legs, the apex portion including a number of relationally spaced elongated openings formed therein, the elongated openings including oppositely disposed elongated edges, the openings being structured to receive at least a portion of the shank therethrough when the panel is mounted to the building, the apex portion is oriented generally parallel with the base member, the base member includes a substantially planar first portion and as substantially planar second portion, the first portion connecting the engagement member to the body, and the engagement member extending between the first and second portions, the first leg extends between the first portion and the apex portion, the second leg extending between the second portion and the apex portion, the apex portion being oriented generally parallel with the first and second portions, the second portion having a distal edge with respect to the second leg, the distal edge defining an uppermost extremity of the panel when mounted,
• the engagement member being structured to be engageable with the head of the fastener.