Page 83 - State College, PA Design Guidelines

• 06.28.2018

6.28 Convey as closely as possible the character of historic Double-Hung Window
sash divisions in a new window. Ventilation

a. Use genuine muntins on windows located within key historic
walls and other highly visible places.

b. Locate snap-on muntins in secondary locations. They should
still have a similar depth and shadow line to their original
counterparts.
c. Do not use strips of material located between panes of glass to
simulate muntins.

ENERGY CONSERVATION IN WINDOWS
Historic windows can be repaired by reglazing and also patching and splicing
wood elements such as the muntins, frame, sill and casing. Older windows
were built with well-seasoned wood that is superior to most new material.
Repair and weather-stripping or insulation of the original elements is more
energy efficient, less expensive, and sound preservation practice.

6.29 Enhance the energy efficiency of an existing historic
window, rather than replace it.

a. Install an insulated window shade.
b. Add weather-stripping, insulation and caulking around the Double hung windows simultaneously allow for
window. air circulation while saving energy.

Enhance the energy efficiency of an existing
historic window, rather than replace it.

RETROFITTING
HISTORIC WINDOWS
For more information retrofitting
historic windows, review 13 Things You
Should Know About Retrofitting Historic
Windows, published by the National
Trust for Historic Preservation. A
hard copy is available in the Planning
Department.

CHAPTER 6 • TREATMENT OF HISTORIC RESOURCES • ADVISORY 77