[MassHistPres] Updated National Park Service Preservation Brief on Substitute Materials

[Doherty, Jennifer @ SEC]

>From the National Park Service:



The National Park Service has released a revised Preservation Brief 16: The Use of Substitute Materials on Historic Building Exteriors.

The new guidance provides additional direction as well as technical preservation information on when a different material than the historic one may be appropriately used to replace a deteriorated or missing historic feature, consistent with the Secretary of the Interior's Standards for Rehabilitation<https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDAsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vd3d3Lm5wcy5nb3Yvc3ViamVjdHMvdGF4aW5jZW50aXZlcy9zZWNyZXRhcnlzLXN0YW5kYXJkcy1yZWhhYmlsaXRhdGlvbi5odG0_dXRtX21lZGl1bT1lbWFpbCZ1dG1fc291cmNlPWdvdmRlbGl2ZXJ5IiwiYnVsbGV0aW5faWQiOiIyMDIzMTAwNS44MzY2MDkzMSJ9.QT4aKrHPBfXD5droSBt29XjoT64lVWcADihTJB7rKWU/s/1300898776/br/227508238368-l>.



The new guidance updates existing guidance on the use of substitute materials to be more consistent with other recent NPS guidance and to ensure that it continues to reflect current and best practices. Revised guidance takes into account such factors as availability, performance, location/visibility, code requirements, and sustainability/resilience of the proposed new and historic materials or features. The guidance continues to recognize that flexibility may sometimes be needed when it comes to new and replacement materials as part of a historic rehabilitation project.



Preservation Brief 16: The Use of Substitute Materials on Historic Building Exteriors<https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDEsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vd3d3Lm5wcy5nb3Yvb3Jncy8xNzM5L3VwbG9hZC9wcmVzZXJ2YXRpb24tYnJpZWYtMTYtc3Vic3RpdHV0ZS1tYXRlcmlhbHMtMjAyMy0yLnBkZj91dG1fbWVkaXVtPWVtYWlsJnV0bV9zb3VyY2U9Z292ZGVsaXZlcnkiLCJidWxsZXRpbl9pZCI6IjIwMjMxMDA1LjgzNjYwOTMxIn0.AIfpygRDr6A7vDcxjv-29Hp4Hcd6-mML8Yd-yqH0J2Q/s/1300898776/br/227508238368-l> has been updated and revised to address additional instances when the use of substitute materials may be appropriate and provides a path for decision-making in their use. The Brief also includes an expanded and updated list of various building features and potential substitute materials which may be considered for use as possible replacement materials, consistent with the Standards. The Planning Successful Rehabilitation Projects related guidance, Evaluating Substitute Materials in Historic Buildings<https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDIsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vd3d3Lm5wcy5nb3Yvc3ViamVjdHMvdGF4aW5jZW50aXZlcy9ldmFsdWF0aW5nLXN1YnN0aXR1dGUtbWF0ZXJpYWxzLmh0bT91dG1fbWVkaXVtPWVtYWlsJnV0bV9zb3VyY2U9Z292ZGVsaXZlcnkiLCJidWxsZXRpbl9pZCI6IjIwMjMxMDA1LjgzNjYwOTMxIn0.rH5WGIxMv0RpRTpUCKe7Bb_vTuLh-z4q07pq9gGThTI/s/1300898776/br/227508238368-l>, has been similarly updated and revised.



This new guidance complements other recently updated and new guidance on the use of substitute materials contained in The Secretary of the Interior's Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Buildings<https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDMsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vd3d3Lm5wcy5nb3Yvb3Jncy8xNzM5L3NlY3JldGFyeS1zdGFuZGFyZHMtdHJlYXRtZW50LWhpc3RvcmljLXByb3BlcnRpZXMuaHRtP3V0bV9tZWRpdW09ZW1haWwmdXRtX3NvdXJjZT1nb3ZkZWxpdmVyeSIsImJ1bGxldGluX2lkIjoiMjAyMzEwMDUuODM2NjA5MzEifQ.5wSVczTtLk1l1QnHTQ8m1HowCRrRC2CXeKhJw7Q6Znc/s/1300898776/br/227508238368-l> (revised 2017) and The Secretary of the Interior's Standards for Rehabilitation & Guidelines on Flood Adaptation for Rehabilitating Historic Buildings<https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDQsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vd3d3Lm5wcy5nb3Yvb3Jncy8xNzM5L3VwbG9hZC9mbG9vZC1hZGFwdGF0aW9uLWd1aWRlbGluZXMtMjAyMS5wZGY_dXRtX21lZGl1bT1lbWFpbCZ1dG1fc291cmNlPWdvdmRlbGl2ZXJ5IiwiYnVsbGV0aW5faWQiOiIyMDIzMTAwNS44MzY2MDkzMSJ9.8wyEQ6BHS_qesstLtG2cZAl2exg9eeB-EojTjBKzr-0/s/1300898776/br/227508238368-l> (issued 2021)



Preservation Brief 8: Aluminum and Vinyl Siding on Historic Buildings: The Appropriateness of Substitute Materials for Resurfacing Historic Wood Frame Buildings, which is no longer applicable, had been rescinded.



Webinars on the new guidance will be scheduled in the coming weeks.


Jennifer B. Doherty
Local Government Programs Coordinator
Massachusetts Historical Commission
220 Morrissey Boulevard
Boston, MA 02125-3314
Office: (617) 727-8470
Remote: (617) 807-0685
Jennifer.Doherty at sec.state.ma.us<mailto:Jennifer.Doherty at sec.state.ma.us>

Register for virtual workshops<https://www.sec.state.ma.us/mhc/mhcotr/otridx.htm>

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