New construction windows have nailing or attachment fins or flanges on the exterior side of the window.
Difference between new construction and replacement windows.
New construction windows are built for new homes or home additions.
New construction windows are meant for clear openings in the house usually with no trim or siding in place.
New construction windows are used when a brand new home or a new addition to a home is being built.
Unlike replacement windows new construction windows need to be installed on the framing directly with the use of a nail fin frame.
Replacement windows are defined as windows installed into a pre existing window opening while new construction windows are designed for homes that have yet to be constructed or used in the instances where an existing window has to be removed down to the studs of the walls before it can be replaced.
Another thing that differs between replacement and new construction windows is the cost.
Replacement windows have no nailing fins or flanges.
You might think that new construction windows come at a lower cost since they re not the same quality as replacement windows.
Replacement windows replace existing new construction or replacement windows.
Replacement windows could still be used but new construction windows are often more substantial and will not reduce your view.