Standards For Restoration

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Standards for Restoration

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1. A property will be used as it was historically or be given a new use which reflects the property’s restoration period.

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2. Materials and features from the restoration period will be retained and preserved.

The removal or alteration of features, spaces, and spatial relationships that characterise the period will not be undertaken.

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3. Each property will be recognised as a physical record of its time, place, and use. Work needed to stabilise, consolidate and conserve materials and features from the restoration period will be physically and visually compatible, identifiable upon close inspection, and properly documented for future research.

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4. Materials, features, spaces, and finishes that characterise other historical periods will be documented prior to their alteration or removal.

5. Distinctive materials, features, finishes, and construction techniques or examples of craftsmanship that characterise the restoration period will be preserved

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6. Deteriorated features from the restoration period will be repaired rather than replaced.

Where the severity of deterioration requires replacement of a distinctive feature, the new feature will match the old in design, colour, texture, and, where possible, materials.

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7. Replacement of missing features from the restoration period will be substantiated by documentary and physical evidence.

A false sense of history will not be created by adding conjectural features, features from other properties, or by combining features that never existed together historically.

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8. Chemical or physical treatments, if appropriate, will be undertaken using the gentlest means possible.

Treatments that cause damage to historic materials will not be used

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9. Archaeological resources affected by a project will be protected and preserved in place.

If such resources must be disturbed, mitigation measures will be undertaken

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10. Designs that were never executed historically will not be constructed.

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Guidelines for Restoring Historic Buildings

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Guidelines for Restoring Historic Buildings

The Goal is to make the building appear as it did at a particular & most significant time in its history.

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1. Those materials and features from the “restoration period” are identified, based on thorough historical research.

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2. Features from the restoration period are maintained, protected, repaired, and replaced, if necessary.

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3. The removal of features from other periods & missing features from the restoration period may be replaced, based on documentary and physical evidence, using traditional or compatible substitute materials.

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4. The final guidance emphasises that only those designs that can be documented as having been built should be re-created in a restoration project.

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Step 1:

Identify, Retain, and Preserve Materials andFeatures from the Restoration Period

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The historic building’s appearance may be defined by the form and detailing of its exterior materials, exterior features, interior materials, as well as structural and mechanical systems; and the building’s site and setting.

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Step 2:

Protect and Maintain Materials and Features from the Restoration Period

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Protection generally involves the least degree of intervention and is preparatory to other work.

Protection includes the maintenance of historic material through treatments such as rust removal, caulking, limited paint removal, and re-application of protective coatings;

An overall evaluation of building's physical condition should always begin at this level.

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Step 3:

Repair (Stabilise, Consolidate, and Conserve)Materials and Features from the Restoration Period

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Next, Repairing by stabilising, consolidating, and conserving is recommended .

Guidance for repairing a historic material, such as masonry, again begins with the least degree of intervention possible.

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However, Repair may also include the limited replacement in kind—or with compatible substitute material—of extensively deteriorated or missing parts of existing features when there are surviving prototypes to use as a model.

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Examples could include terra-cotta brackets, wood balusters, or cast iron fencing

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Step 4:

Replace Extensively Deteriorated Features from theRestoration Period

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In Restoration, replacing an entire feature from the restoration period (a cornice, balustrade, column,or stairway) that is too deteriorated to repair may be appropriate.

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Together with documentary evidence,the form and detailing of the historic feature should be used as a model for the replacement.

Using the same kind of material is preferred; however, compatible substitute material may be considered.

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All new work should be unobtrusively dated to guide future research and treatment.

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Step 5:

Remove Existing Features from Other Historic Periods

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Work is included to remove or alter existing historic features that do not represent the restoration period.

Prior to altering or removing materials, features, spaces, and finishes that characterise other historical periods, they should be documented to guide future research and treatment.

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Step 6:

Re-Create Missing Features from the Restoration Period

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Most Restoration projects involve re-creating features that were significant to the building at a particular time but are now missing.

Each missing feature should be substantiated by documentary and physical evidence.

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If documentary and physical evidence are not available to provide an accurate re-creation of missing features, the treatment Rehabilitation might be a better overall approach to project work.

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Step 7:

Energy Efficiency / Accessibility Considerations / Health and Safety Code Considerations

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Work done to meet accessibility requirements and health and safety code requirements, or to improve energy efficiency.

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In the process of undertaking work to meet code and energy requirements, This should not obscure,damage, or destroy historic materials or features from the restoration period.

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Restoration as a Treatment.

1. When the property’s design, architectural, or historical significance during a particular period of time outweighs the potential loss of extant materials, features, spaces, and finishes that characterise other historical periods;

2. when there is substantial physical and documentary evidence for the work; and

3. when contemporary alterations and additions are not planned

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Prior to undertaking work, a particular period of time, i.e., the restoration period, should be selected and justified, and a documentation plan for Restoration developed.