Flush Fin Window Siding

Innie vs outie will be determined by the window construction and sash location.

Flush fin window siding.

First order of business was making sure that any nails in the old nail fin were out of the way because we planned to remove the entire nail fin once the siding was cut out of the way we just bent them down to the sit flush with the window frame with a hammer. The integral exterior trim is decorative and covers the gap between the new window and the existing siding. In the fiberglass impervia details what appears to be a flush fin is a replacement window. A vinyl window used for retrofit installation into an existing window frame.

From the outside the siding butts right against the windows. Verify width and height of new window are each smaller than the minimum opening width and height of the existing opening. Flush fin allows our windows to be installed from the exterior of a home into an existing window frame. The fin covers the old window frame no need to cut back stucco or siding refinish interior trim or replace blinds and window coverings.

A flush fin window is designed to fit flush on top of the old window frame and when properly installed with a liberal bead of sealant between new and old frames you get a solid water tight seal. Flush fin also called z bar typically used in california and other markets where aluminum windows are in place and the exterior is stucco or masonry. If you have wall siding it is just as important to leave the existing frame. No need to cut back stucco or siding refinish interior trim or replace blinds and window coverings.

Cutting away the siding will require that the replaced windows will have a 1 5 to 2 cedar trim moulding around the edges of the window impacting the aesthetics somewhat i guess. This provides a clean energy efficient result. Flush fin recommended for replacement this frame type allows our windows to be installed from the exterior into an existing aluminum window frame. These windows have a large exterior flange that is designed to conceal the existing window s frame.

Full frame replacement after brickmould or trim removal or siding cut back for nail fin windows the existing window or door and wood brickmould or trim is removed. Our flush fin option allows our windows to be installed from the exterior of a home into an existing window frame. The fin covers the old window frame.