Embodiments herein relate to fenestrations exhibiting coastal impact performance. In an embodiment, a fenestration unit includes a frame assembly forming a first lower corner and a second lower corner. A first sill corner bracket can fit on a top of a sill and extend from the first lower corner partway along the top of the sill and partway along one side jamb of the frame assembly. A second sill corner bracket can be configured to fit on the top of the sill and extend from the second lower corner partway along the top of the sill and partway along the other side jamb. A bottom sash can include a bottom rail defining a channel to receive at least a portion of the first corner bracket and the second corner bracket therein when the bottom sash is in the closed position. Other embodiments are also included herein.

A corner key assembly for a sliding panel system including a panel frame and a movable panel can include a corner key including a distal and proximal end, and a guide chamber being defined in the corner key, the guide chamber extending from the distal end towards the proximal end of the corner key; a guide slidingly movable relative to the corner key, at least a portion of the guide being configured to be positioned in the guide chamber and a portion of the guide being configured to extend from the guide chamber; and a biasing element positioned in the guide chamber between the guide and the proximal end, the biasing element configured to urge a portion of the guide from the guide chamber away from the corner key and into frictional engagement with the panel frame to hold the panel in a desired position relative to the panel frame.

Window lite assemblies and methods for installing the assemblies are provided herein. The assemblies described herein are configured to be installed in new and existing buildings, especially in building corners, while leaving some or all of the horizontal structural members such as headers and sills in place.

Window lite assemblies and methods for installing the assemblies are provided herein. The assemblies described herein are configured to be installed in new and existing buildings, especially in building corners, while leaving some or all of the horizontal structural members such as headers and sills in place.

A frame assembly is disposed within an opening of a structure. The frame assembly includes first and second frame members each defining an interior and having a plurality of walls extending between a first end and a second end. The frame assembly includes a cornerlock extending into each of the first and second frame members. The cornerlock includes first and second body members each having hinge and distal ends and are rotatably coupled together at the hinge ends. The first body member has at least one arm deflectable to bias against and engage the first frame member. Each of the first and second frame members has a mitered end. The first and second frame members abut at the mitered ends in an angular configuration. The cornerlock rotates to correspond with the angular configuration and is entirely disposed within a combination of the interiors of the first and second frame members.

Window lite assemblies and methods for installing the assemblies are provided herein. The assemblies described herein are configured to be installed in new and existing buildings, especially in building corners, while leaving some or all of the horizontal structural members such as headers and sills in place.