National Park Service
Technical Preservation Services photo of stonework at Hyde Hall, Otsego Lake, NY
Preservation Tech Notes
Case Studies in Historic Preservation

photo of repair work on the windows at Arlington House

The Preservation Tech Notes provide practical information on traditional practices and innovative techniques for successfully maintaining and preserving cultural resources. Please note that 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.

For information on obtaining single hard copies, please refer to the online TPS Publications Catalog.


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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