Historic Fibrous Plaster in the UK
Fibrous plaster is a form of decorative plasterwork composed of plaster of Paris, reinforced with layers of hessian and secured within a timber framework. It was used to imitate more expensive and time-consuming traditional lime-based, hand-modelled plaster. Although fibrous plaster is often associated with the Victorian and Edwardian theatre and music hall, it was fitted in a wide range of buildings in the UK. However, it is often unrecognised, and has been ignored in technical research and conservation guidance over recent decades.
This document is interim guidance for conservation professionals and building managers responsible for buildings with fibrous plaster in the UK.
It was prepared by Historic England in association with Historic Environment Scotland, Cadw, Welsh Government, and the Historic Environment Division of Northern Ireland. Historic England is undertaking research on the material and more detailed information will be published in due course.
This guidance focuses on fibrous plaster ceilings, since they present a potential risk of collapse if neglected. It begins with the history of fibrous plaster, and then explains forms of deterioration, current survey standards, methods of repair and finally, management of buildings with the material.
- History of fibrous plaster
- Materials and construction
- Deterioration and damage
- Survey and assessment
- Building management and maintenance
- Determination of competency
- Appendix: ABTT Guidance Note 20
- Where to get advice
- Series: Guidance
- Publication Status: Completed
- Pages: 48
- Product Code: HEAG269
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