Page 82 - State College, PA Design Guidelines

06.28.2018 •

6.26 Use materials that appear similar to the original when
replacing a window.

a. When possible, use the same material as the original, especially
on key historic walls. However, a substitute material may be
considered if the appearance of the window components will
match those of the original in dimension, profile and finish.
b. Convey the visual appearance of historic glazing with new glazing.
Clear glazing and transparent low-e type glass are appropriate.
Metallic and reflective finishes are inappropriate.
c. Do not use vinyl and unfinished metals for a replacement
Preserve the functional and decorative features
of a historic window. window material.

6.27 Match, as closely as possible, the profile of the sash and
its components to that of the original window.

a. A historic wood window usually has a complex profile. Within
the window’s casing, the sash steps back to the plane of the
glazing (glass) in several increments. These are important details
that help distinguish the actual window from the surrounding
plane of the wall.

TYPICAL HISTORIC WINDOW COMPONENTS

Flashing
Match, as closely as possible, the profile of the
sash and its components to that of the original Trim
window. (Fort Collins, CO) Sash

Glazing
TREATMENT OF
HISTORIC WOOD Muntin
WINDOWS
For more information about repairing Sash
historic windows, review the following
National Park Service Preservation
Briefs:
Preservation Brief 9: The Repair of Sash
Historic Wooden Windows
Sill
Preservation Brief 13: The Repair and Apron/Trim
Thermal Upgrading of Historic Steel
Windows
Hard copies of both documents are
available in the Planning Department
office.

76 STATE COLLEGE, PA • HERITAGE STATE COLLEGE DESIGN GUIDELINES