National Park Service
Technical Preservation Services photo of window repair
Preservation Tech Notes
Case Studies for Historic Preservation
photo of repair work on the windows at Arlington House
Initiated in 1984, the Preservation Tech Notes series provides practical information on traditional practices and innovative techniques for successfully maintaining and preserving cultural resources. With over 45 Tech Notes published by Technical Preservation Services, this publication series provides a wealth of information for practitioners in the preservation field, including architects, contractors, and maintenance personnel, as well as for owners and developers of historic properties. More than 1/2 million copies of the Tech Notes are in print and, starting recently, all new issues can also be found below, along with some of the popular past ones.

The Tech Notes are organized by categories. Current categories include windows, doors, finishes, masonry, mechanical systems, metals, museum collections, site, temporary protection and historic glass. For information on obtaining singles copies of select past issues, please refer to the online TPS Publications Catalog. The Tech Notes on windows have been included in the Window Handbook: Successful Strategies for Rehabilitating Windows in Historic Buildings. Ordering information, including cost, for the Window Handbook is also provided on the online TPS Catalog.

A NOTE TO OUR USERS: The web versions of the Preservation Tech Notes differ somewhat from the printed versions. Many illustrations are new, captions are simplified, illustrations are typically in color rather than black and white, and some complex charts have been omitted.

Exterior Woodwork
Log Crown Repair and Selective Replacement Using Epoxy and Fiberglass Reinforcing Rebars

Protecting Woodwork Against Decay Using Borate Preservatives

Paint Removal from Wood Siding

Historic Glass
Repair and Reproduction of Prismatic Glass Transoms

Repair and Reproduction of Historic Sidewalk Vault Lights

Interior Spaces
Preserving Historic Corridor Doors and Glazing in High-Rise Buildings

Masonry
Substitute Materials: Replacing Deteriorated Serpentine Stone with Pre-Cast Concrete

Non-destructive Evaluation Techniques for Masonry Construction

Mechanical Systems
Replicating Historic Elevator Enclosures

Metals
Restoring Metal Cornices

Rehabilitating a Historic Iron Bridge

In-Kind Replacement of Historic Stamped Metal Exterior Siding

Museum Collections
Reducing Visible and Ultraviolet Light Damage to Interior Wood Finishes

Temporary Protection
Temporary Protection of Historic Stairways During Rehabilitation Work


Specifying Temporary Protection of Historic Interiors During Construction and Repair

Protecting a Historic Structure during Adjacent Construction

Windows
Temporary Window Vents in Unoccupied Historic Buildings

Aluminum Replacement Windows for Steel Projecting Units with True Divided Lights and Matching Profiles
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