A modular fenestration system includes a collection of standardized functional units such as double hung window units, casement window units, picture window units, transom units, and the like. The functional units all share common sightlines, common glass set-back, common interfaces, common design language, and are sized according to a unique modular or incremental sizing grid. The sizing grid specifies individual window units in terms of the rough opening size in which they are designed to be installed. Individual functional units are easily combinable in a vast array of combinations to create a large number of possible composite window units. The above attributes of the functional units ensures that the composite window units are architecturally pleasing and appear as though they were custom crafted. The system also includes a collection of interior and interior trim units in various architectural styles that can be attached to installed standardized functional units via the common interfaces to match the architecture of a particular home or building. A collection of matching architectural grilles and hardware also are provided, and the trim units, grills, and hardware are all historically and period accurate to represent a wide variety of architectures both past and present. Exterior and interior trim can be built up from a limited number of standard components that can be combined in a large number of ways to create a wide variety of trim profiles.

The system is compose of a series of operable louvers mounted on a four sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.

The system is compose of a series of operable louvers mounted on a four sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.

A window insulation system comprising a flexible frame, an insulating film, attached and surrounded by the flexible frame, for insulating the interior of a home from the window, at least one support wrapped around a portion of the flexible frame, wherein the at least one support is configured to maintain a frame shape around the window, and a valve, attached to the flexible frame, configured to control the inflation of the flexible frame, to seal the window.

A window insulation system comprising a flexible frame, an insulating film, attached and surrounded by the flexible frame, for insulating the interior of a home from the window, at least one support wrapped around a portion of the flexible frame, wherein the at least one support is configured to maintain a frame shape around the window, and a valve, attached to the flexible frame, configured to control the inflation of the flexible frame, to seal the window.

A cover for closing an access opening that leads to an infrequently used space within a building, such as an attic, that generally provides an air seal, thermal insulation and/or acoustic insulation at the access opening. The cover may be in one or two portions, including a closure alone or a closure and a frame having an aperture that can be closed by engagement between the closure and the frame. When the cover is used alone it engages a frame or a wall circumscribing the access opening. The cover is sized and shaped to close a stairwell, or the opening at one end of a stairway, an opening in a generally vertical wall, a hatch, or a pull down ladder. The closure and frame are each made of one or more components.

A cover for closing an access opening that leads to an infrequently used space within a building, such as an attic, that generally provides an air seal, thermal insulation and/or acoustic insulation at the access opening. The cover may be in one or two portions, including a closure alone or a closure and a frame having an aperture that can be closed by engagement between the closure and the frame. When the cover is used alone it engages a frame or a wall circumscribing the access opening. The cover is sized and shaped to close a stairwell, or the opening at one end of a stairway, an opening in a generally vertical wall, a hatch, or a pull down ladder. The closure and frame are each made of one or more components.

A sliding window assembly (35) including a window frame and at least two glass panes (38, 39). At least one of the glass panes (38, 39) slides within the frame between an open position and a closed position, wherein one of the edges of each pane overlaps to form overlapping edges (42, 43). First and second rails (44, 45) are connected to the overlapping edges (42, 43) and cooperate to form a seal between them in the closed position. Each rail (44, 45) is formed from a metal component (46) and a plastic component (51) that are formed separate from each other and are assembled in nesting connection. The seal in the overlap between the overlapping edges (42, 43) in the closed position of the panes (38, 39) is formed between the plastic components (51) of the first and second rails (44, 45). The metal components (51) of the first and second rails (44, 45) are spaced from contact with each other and extend to overlie outwardly facing surfaces of the first and second panes (38, 39).

A frame with segments that are in flush with each other is disclosed. The frame of the present invention comprises a plurality of segments, a plurality of outer retaining units and a plurality of inner retaining units. The segments are connected together to form a frame. Each outer retaining unit is disposed on the rear outer side of the juncture of each pair of neighboring segments. Each inner retaining unit is disposed on the rear inner side of the juncture of each pair of neighboring segments. In this manner, each pair of neighboring segments may be tightly joined together and the segments of the frame may be in flush with each other.

A frame with segments that are in flush with each other is disclosed. The frame of the present invention comprises a plurality of segments, a plurality of outer retaining units and a plurality of inner retaining units. The segments are connected together to form a frame. Each outer retaining unit is disposed on the rear outer side of the juncture of each pair of neighboring segments. Each inner retaining unit is disposed on the rear inner side of the juncture of each pair of neighboring segments. In this manner, each pair of neighboring segments may be tightly joined together and the segments of the frame may be in flush with each other.