Hurricane resistant window

A replacement window comprising:

• a window frame having a window header, a window sill, a first frame jamb, and a second frame jamb, wherein the first frame jamb and the second frame jamb each connect the window header to the window frame and the window header, the window sill, and the first frame jamb and the second frame jamb define a window frame opening;
• a first sash positioned in the window frame opening, the first sash comprising:
• a first sash header,
• a first sash sill spaced away from the first sash header and oriented substantially parallel to the first sash header,
• a first sash jamb connected to one end of the first sash header and one end of the first sash sill, and
• a second sash jamb spaced away from the first sash jamb is oriented substantially parallel to the first sash jamb and is connected to another end of the first sash header and another end of the first sash sill,
• wherein the first sash header, the first sash sill, the first sash jamb, and the second sash jamb define a first opening;
• a second sash movably positioned in the window frame opening, the second sash comprising:
• a second sash header,
• a second sash sill spaced away from the second sash header and oriented substantially parallel to the second sash header,
• a third sash jamb connected to one end of the second sash header and one end of the second sash sill, and
• a fourth sash jamb spaced away from the third sash jamb and is oriented substantially parallel to the third sash jamb and is connected to another end of the second sash header and another end of the second sash sill,
• wherein the second sash header, the second sash sill, the third sash jamb, and the fourth sash jamb define a second opening;
• a reinforcement member, having a hollow, double I-beam shape, encased in the second sash header;
• a reinforcement pin positioned adjacent to the second sash header of the second sash;
• and
• one jamb retainer clip positioned adjacent to the first frame jamb and another jamb retainer clip positioned adjacent to the second frame jamb, wherein each of the jamb retainer clips defines a reinforcement pin orifice which receives a corresponding reinforcement pin.