Adams Architectural completes historically accurate window job
Adams Architectural Millwork

Adams Architectural recently completed historically accurate windows for an historic home renovation. 

The homeowner wanted to keep the same look as the original windows, but wanted the efficiency of insulated glass. To preserve the same look as the original, Adams had to fabricate a thicker window sash to maintain the same depth of the muntin bar. More than 40 windows were replaced by the Dubuque, Iowa, company.

Details of the window project included: New 2-1/4 inch thick sash (standard sash thickness is 1-3/8 inch or 1-3/4 inch); Windows fabricated from vertical grain douglas fir; insulated glass with restoration glass; and simulated divided lite muntin bars to match the profiles and design of the original windows.

The original windows were reported to be in decent condition. The frames of the windows were in good shape and salvageable. Originally, the windows were constructed with a single pane of glass and tru-divided lites. The house also had storm windows that protected them from the elements and were a main component in why the original windows were found to be in such good condition.

It took a great deal of experience and patience to cope and miter the simulated divided lite muntin bars at several different angles to make them fit properly, according to Adams. It also took a great deal of time and detail it to cut, fit, and place all the muntin bars onto the glass. Once one side was complete, it was necessary to perform the same tasks to the opposite side of the window.

Adams Architectural fabricates historically accurate windows, window sashes, storm windows, doors, and storm doors. See for more images and projects.


Have something to say? Share your thoughts with us in the comments below.