NCPTT, National Center for Preservation Technology and Training... Notes From the Center... United States Department of the Interior... June 1996

18 Pages·1996·6 MB·English

by  Department of the Interior

Ov¥$- 7-02 Xo 2. 130"06/%6
uted States Departme;:t of the Interior
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NOTES
FROM
a oe ONo No e
forefront of studies on deterioration of
materials caused by air pollution. We
look forward to developing and
reporting on new projex tsin the future.
As a special feature following the
he principle articles in this
recent Spring meeting of the Center's
edition of Notes focus on the
advisory board — the Preservation
detenoration and preservation
of stone, and the activities of NCPTT's Technology and Training Board —
Materials Research Program. The this edition of Notes includes as
Center is continuing to develop the centerfold supplement the text o. a
NCPTT Environmental Exposure public lecture on the occasion of the
Chamber Facility on the Northwestern PTTBoard meeting: Cultural
State University campus, in close Landscape Stewardship-The
collaboration with the NSU's Division Gorge of the Columbia River, by
of Math and Science and Department Jonathan L. Doherty.
of Chemistry. UnderanewResearch — Mary F. Stregel
and Researchers heading, this edition of Notes presents the work of
George S. Wheeler. Research by Elaine McGee is presented in the regular
Materials Research Program Column. Also included is a review of a new book
by Clifford A. Price, Stone Conservation, An Overview of Current Comments and items of interest for
Research, published by the Getty Conservation Institute the next newsletter should be sent to
As the Center continues to focus on research activities in areas of pressing the editor of the upcoming Notes,
preservation need, the Materials Research Program will continue to be at the John Robbins.
NCPTT NOTES :2-/]
calcite, an adhesion which is present with
munerals such as quartz. His is collaborating
currently with Dr. C.J effrey Brinker, a leader
in solgel science, at the Sandia National
Laboratories in Albuquerque. They are
attempting to develop alkoxysilanes with
The National Histor’ Preservation Act Tins article begms an occasosennesa lth at
haghlights thec areers ofp eople who pronde better adhesion to calcite. Also, Wheeler
Amendments of 1S °°. established the
recently received a National Science
National Center for Preservation fundscaentfmic eundenrstatndiang tlhro ugh
Foundation Grant for collaboration with
Technology and Training a' research in the field of preservation practice int he
Mexico for the development of consolidants
Northwestern State University ofLo uisiana U'mied States.
for limestone. In addition to his research
in Natchitoches.
Wheeler its Adjunct Professoro fC onservation
The Center and its advisory board - the George Segan Wheeler 's a research
at NYU's Conservation Center and is a
Preservation Technology and chemist in the Sherman Fairchild Center
frequent lecturer at conferences and other
Training Board - were crganized for Objects Conservation of the
conservation training programs. Also, he ts
throughout |9 93 and | 994, and the Center's Metropolitan Museum of Art where he
Consulting Director of Research in Building
charter staff arrived in Natchitoches by has worked since 1979. He spent a year
Conservation Associates, Inc., an
January 1995. with Dr. Clifford Price at the Building
architectural preservation firm.
The Center is an interdiscplinary effort Research Station in E.icland studying
Wheelewra s recently awarded a Kome
by the National Park Service to advance alkoxysilanes for stone con:crvation.
Prize from the Amencan Academy in Rome.
the practice of histonc preservation in the Wheeler received his undergraduate
He will spend six months next year in Rome
fields of archeology, historic architecture, deign arrt hiestorey w ith minors in physics
studying Italian approaches to the cleaning
landscapes, matenals conservation, and and mathematics at Muhlenberg College,
and consolidation of marble. His book, co-
history. The Center’s mission is Allentown, Pennsylvania. It was, in fact,
authored by Elizabeth Goins Stevenson, is
implemented through its three components the course distribution requirements of
enutled Aldoxysilanes and Stone Consohdahoann d
— research, training, and information the liberal arts education proffered at
will be publisbhy ethde J. Paul Getty Trust
management. Muhitehat nspabrkeed hris ignter est in art
in 1997.
The Center's research component history. While majoin rphysiicsn heg to ok
emphasizes innovative, practical solutions a coursei n 19th and 20th centurayr t
to current preservation and conservation history and at the time “didn’t know Van
questions. Eyck from Van Gogh.” The effect of the
The Center's traimimg component course was so great that he changed majors
emphasizes preservation skills and went on to receive a master’s degree in
enhancement, life-long learning at all levels art history from Hunter College of the Thns artucle in the Matenals Research Program senes
of preservation practice, and continuing City University of New York. He later features the work of Elaine McGee, a geologiast tth e
education for preservation professionals. entered New York University’s Institute
The Center's information of Fine Arts Conservation Center, where im minearnda petlroloogy ganyd h as used these skalls
management component emphasizes he recea miastverse ddegr ee as an art to characterize stone samples before and after exposure
cultural resources data management and conservator which brought together his ct Nahonal Aad PrecigAsnsestsmaentt Porongr am
information distribution that is inrovative interests in art and science. In addition,h e (NAPfiAeldP tes)t s ites (see Notes, issue //) .
and appropmiate for the electronic age. receiveda Ph.D. in chemistry alsoa tN YU
working with Dr. Seymour Lewin. Elaine McGee began studying the
Wheeler's research has focused on deterioration of stone when she joined
the consolidation of detenorated stone NAPAP in 1984, to keip with the
using alkoxysiianes. His work attempts to mineralogical characterization of stone used
connect the widely varying performance in exposure sites under the Program. Since
of chemical consolidants with the then she has been involved with a numbero f
mineralogy of the stones undergoing Program projects, including most recently
consolidation. Generally, carbonate rocks, the charactenzation of alteration crusts on
like limestone or marble, expenence lower the Cathedral of Learning, Pittsburgh (see
increases in certain mechanical properties Notes, issue 7). In addition to her work with
than siliceous rocks, such as sandstone, the NCPTT, McGee is working with the
when consolidated with alkoxysilanes. He National Park Service on preservation
ascribes these differences to the lack of projects at the Jrfferson and Lincoln
adhesion between alkoxysilane gels and Memonials in Washington, DC.
according to a site management pian issued
by the NatiPaork nSearvilce in 1984. After
exposure of the briquettes at periods ranging
from months to a maximum of ten years, the
briquettes were again examined. A vanety
of changes in the briquettes were seen
including discoloration on their groundward
surfaces. After one-year and two-year
exposures a gypsum-nch “spot” developed
on the sheltered underside of the briquettes.
Only calcite was detected on the upper
surfaces of the samples. McGee's
observations have been used by other
principal investigators within the Materials
Research Program to develop models in
attempt to explain this phenomena.
Examination of alteration crusts from
historic buildings also are part of McGee’s
contribution to the Materials Research
Program. Alteration crusts from marble
buildings such as the Merchant’s Exchange
Building in Philadelphia (built 1832) and
the Lincoln Memorial in Washington, DC
(built 1922) were examined using X-ray
The Center's Materials Research electron microscopy — to analyze test diffraction analysis and scanning clectron
Program emphasizes research on the samples in the form of “briquettes” for the microscopy. These alteration crusts cunsist
effects of acid rain and air pollution on NAPAP field test sites. Briquettes are first of gypsum plus dirt trapped by the network
calcareous stone. Limestone and marble characterized before exposure so that of gypsum crystals that covers the stone.
contain calcite and are used in the baseline information is obtained. McGee The most striking difference between the
construction of buildings, monuments, and describes the chemical composition, the gypsum spots seen on building alteration
carved stone ornament. These materials grain size and distribution, the type of crusts and those found on the NAPAP
suffer from exposure to air pollution, and in inclusions, and the amount of briquettes is their visual appearance. The
particular acid rain. metamorphosis (recrystallization) of the color, abundance of particulates, and
In order to understand the effects of briquettes. For example, inclusions in thickness of the crusts all contribute to their
pollution on marble and limestone, we must marble can occur as isolated grains or as appearance. These characteriasritsei fcrso m
first be able to characterize the stones clusters that form streaks or swirls of different lengths of exposure. Building
involved. Only then can we begin to contrasting color in a stone. Mineral alteration crusts range from soft, easily
develop effective treatment schemes and inclusions weather differently than calcite. scraped beige and light orange
preventative maintenance strategies. Boundanes between grains and inclusions accumulationst o tough black accumulations.
Within the subgroup of stones called may also permit easier penetration of water Alteration crusts found on briquettes tended
maror libmestlone,e th ere are actually many into the stone than inclusion-free areas. to be lighter in color and contained more
different individual stones. Variatioanres a Grain size and texture of the marble refl>ct particulate matter when exposed to urban
result of their geological formation and are its formation; weakly metamorphosed stone environments. The dark crusts have amuch
manifested by; slightly different chemical will have a range of grain sizes and shapes, greater abundance of dirt particulates
compositions, inclusions, porosities, and resulting in a loose texture with many compared to the light crusts.
physical properties, among others. These inclusions, whereas more strongly From her studies, McGee has identified
differences can affect the way pollutant metamorphosed marble will be tightly four factors important in the formation and
interact with the surface of the stone and compacted and the recrystallized calcite development of gypsum alteration crusts on
greatly affect its weathering characteristics. will be ughtly interloc*ed. marble and limestone. These factors include
They also affect ways water and pollutants McGee’s work continues after the pollution levels, exposure to rain or washing,
are carried into the stone. Both the nature briquettes have been exposed to the outdoor geometry of exposure, and permeability of
and rate of decay of the stone is affected by environment at the NAPAP field test sites. the stone. NAPAP field test briquettes show
the physical and chemical differences. Sample briquettes Sofa lem limestone from that stone exposed to urban environments
Elaine McGee uses the tools of her Indiana and Shelburne Marble from with higher pollution levels develop
trade — visual, optical, and scanning Vermont were exposed in the field alteration crusts before they are seen af
other sites. Brquettes exposed at urban Our cultural hentage is composed of uncomfortable impression that few
sites have the most extensive crusts. many works made from stone. Much of conservation scientists have the ability to
Exposure to rain affects the crusts because this heritage is located in an outdoor
utilize the extensive chemical literature in
gypsum is more soluble in water than calate. environment and ultimately suffers from this area and that is preventing the transfer
Because of this, gypsum tends to be washed ravages of time and the elements. One has of valuable knowledge to the field of
off surfaces that are exposed to rain, and is but to look in any local community to see conservation.”
deposited under sheltered surfaces. The signs of stone deterioration. It is foundi n The question of retreatment is another
geometry of the stone surface affects the the facades of government buildings and in issue raised Ly Price in chapter four, during
formation of crusts because it affects the the tombstones of early graveyards. It is the discuosf csonsierovatnion policy. While
flow or drip paths for water. Stones that evidenced in the presence of distracting conserpvay ahotmaoge rtos t he principloef
permit moisture to move more readily black crusts on the surfaces of our
reversibility — treatments should be
through the stone allow for sulfate to monuments.
reversible without damaging the materials
penetrate between grain boundaries and Stone conserisav fiaeldt thiat ostnudi es
— within the field of stone conservation this
may lead to a greater penetration of the the detenanod cronsaequtenti troeantme nt
is more of an ideal than a reality. Price feels
gypsum crust and hence a more severely of stone used in cultural works. The proper
that the emphasis should he focused instead
damaged stone. treatment of deteriorated stone has been
on “retreatability”. Little reseahrasc bhee n
Currently McGee is working closely an ongdoebatie nfor gyea rs. As earlya s
done to explore the use of newer treatments
with Cliff Davidse « tocharactaelrteiraztieo n 1861 the use of “silicic ether” was suggested
on previously treated stone.
crusts found on the Cathedral of Learning. to arrest stone decay on the Houses of
Chapter five of the book discusses
Analysis of types of particulates in the Parliainm Eengnlatnd .
problems with the effectiveness of research
alteration crusts may lead to a better This book looks at research within the
in the field. Price clearly feels that one of the
understanding of the pollution sources field of stone conservation that has been
greatest problems is the disseminatoifo tnh e
affecting the Cathedral. McGee is also
information within the field through
author of a recent booklet Acid Rain and than a comprehensive, state-of-the-art
publications, conferences and training
Our Nation’s Capital: A Guide to review, Dr. Clifford A. Price, at the Building
programs. He raises the question of non-
Effects on Buildings and Monuments, Research Station in England, has written
peer reviewed publications, such as
which is now available to the general public and presented an admirable overview of
conference proceeasd beiingn regsposns,ibl e
at the Earth Science Information Centers the curzent status of this research. The slim
for a certain laocf qukali ty in the published
(or 1-800-USA-MAPS). This publication is volume, 73 pages in all, contains five
literature. One suggefors itmprioveomen.is t
an excellent resource for secondary school chapters dedicated to understandistnogne
that Price offers is the publication of scholarly
educators for teaching environmentaalnd decay, surveying treatments, assessing the
effectiveness of treatments, shaping
articles would enable researchers to put their
conservation policy, and increasing the
work in context and see where further work
For more information regarding ths work, contact — effecof treseiarcvh. eThne weorks iss fil led
was worthwhile.”
with 240 useful bibliographic references.
This book isr ecommerneaddineg dfo r
Elaine McGee Price, an acknowledged authority in
anyone who wishes to pursue the
U.S. Geological Survey the fieofl sdton e conservation, presentsa
12201 Sunrise Valley Drive, MS development of research ideas within the
clearly written account of issues to be
Reston, VA 22092 field ofc onservation. In addition, it ise asily
addressed by researchers within the field
accessible information that may be enjoyed
— MaFr. Sytre gel and states his own opinions of directions
by scientists and non-scientists alike.
that this reseashroucldh g o. Chapterosn e — Mary F.S triegel
and two provai sdimpele , but technically
sound, accoouf rnesetarc h into the causes
of stone decay and the approaches that
have been used to treat detenoratsitnonge .
His sometimes critical review of the research
C.A. Price
and suggestions for improvement are
Stone Conservation, An Overview of
thought provoking. For example, during
Current Research
discussion of the use of alkoxysilaneisn
Los Asgeles: The Getty Conservation Institute, chapter two, Price states “although the Thas tst he fourth wna regular series ofc olumns on the
1996. literature contains many papers describing Internet. Thus article discusses several of the many
$25.00, softcover. ISBN 0-89236-389-4. the use of silanes on stone, there are very preservation-related World Wide Web sites. In
Avalable from the Getty Trust Publications
few that even attempt to come to grips with future issues other in!v esting sutes will beh nghiaghted.
Distribution Center, P.O. Box 2] 12-DPT GSM6,
the underlying chemistry or the associated Ifyou have suger’ 20n: forI nternet-retolpracts etdha t
Santa Momca, CA 90407, 800/223-3431.
solgel technology. One gets the you would lik tos ee discussed tn Uns column oru f you
have a question about matters addressed here, please slow connecuons, ‘cxt-only Web browsers,
contact the Center ma ¢-manl or regular mail. or those who simply prefer the simplicity of
ahopagme weitho ut graphics will apprecaate
A wealth cf information is available to this.
the public and to preservation professionals
on World Wide Web sites. Three of the
most commonly used and best known sites O10) &
in archeology, materials conservation and
architectural preservation are described
http:/ /w ww.preservenet.cornell.edu/
here. Obviously, to get the full impact of
any World Wide Web site, one must visit preserv_.html
and explore. All three of these sites are
listed in Internet Resources for Heritage Based at Cornell University,
Conservation OnLine [CoOL]
Conservahon, Historic Preservation, and Archeology Preserve/Net was co-developed by
http:/ / palimpsest.star.ford.edu
discussed on page 6 in this issue of Notes. Michael Tomlan and Robert Pick and
is maintained by Robert Pick. It is
CoOL, based at Stanford
designed for users interested in histonc
Univeanrd dsevielotpedy a nd maintained
preservation. The site is divided into two
by Walter Henry, is targeted for Internet
primary sections - Preserve / Net Information
users involved in “...conservation olfi brary, Service and Preserve / Net Law Service. The
archives and museum materials.” InformSeravitce iproovnide s job postings,
Conservation OnLine was established in
conference announcements and links to
1993 and contaan iextnenssiv e amounto f
other resources in twenty four different
conservation-related information including subject areas. This extelinsts ofi catvegoeri es
“grey literature”, documents not published
http://spirit.lib.uconn.edu/ ArchNet/ includes American History, Archeology,
in standard venues such as in-house reports
ArchNet.html Architecture and Landscape Architecture,
and workshop and conference handout
Archives, Libraries, Urban Planning, and
materials. The site is organized using the
ArchNet, based at the Universitoyf more. The Preservation Education
following categones: News, Finding Peopie,
Connecticut and developed and Directory, which contains information
ConseTropivcsa, Otrgainizoatinon s. Misc.
maintained by Thomas Plunkett and about preservation education programs in
Reports and Documents, and Other ‘1 ools
Jonathon Lizee., is geared toward Internet the United States and Canada, is located
and Resources. “Finding People” allows
users with an interest in archeology. here.
users to search for people involved in
Information is well-organized and The Law Service is designed to help
conservation using the directory created by
categonzed by both geographic region and lawyers, activists, and owners “in
CoOL or by linking to other directories on
subject. The primary categories include understanding the law as it relates to
the Internet such as the Worldwide E-mail
Academic Departments, Archaeological preservation.” A link to the Legal
Regions, Museums on the Web, Subject Directory of Anthropologists (WEDA). Information Institute at Cornell provides
“Conservation Topics” include Digital
Areas, Other Resources, and News and access to the full United States Code. Text
Imaging, Education and Training
System Information. Within these areas, of legislation, discussions of court cases and
there are links to university departments opportunities in Conservation, Ethics, models for preservation ordinances,
Health and Safety, Pest Management, and
world wide, government agencies, constitutional amendments, and
more.
SHPOffices and sites relating to specialized enfoprroviscionse arme aveailanble tin the
Although CoOL does not provide a
topics such as archeometry, ceramics, geo- PresNeet rLavw Seer/vic e.
text-only version, the site is not graphics
archeology, lithics, mappitig and GIS and
intensive. Content appears to bee mphasized
more. Full text of preservation-related All three of these World Wide Web
over appearance.
legislation is also available. Finally, the sites are excellent resources for either the
Archaeological Fieldwork Server provides lay person with an interest in archeology,
information about field schools and conseorr arvchiatectturail poresnerv,ati on
opportunities for volunteers and paid or for the professional preservationist. Each
workers. solicits input from users and provides tools
ArchNet is available in five languages: to search for topics of interest. As with most
English, Dutch, French, German, and Internet resources, these sites change and
Spanish. Licnan kbe cshos en via images or grow constantly. The only way to fully
throtuhe gTahbl e of Contents. In addition, apprecithaet h*ug e amount of information
a text-only version is available. Users with available is to start your browser and explore.
NCPTT NOTES 12-5
responsibility for the IRG. It is now
available both through the Ceu.ter’s Web
page and the Centergo’phser . Via the
Web page, cither click on “Internet
Resources for Heritage Conservaion,
Historic Preservation, and Archeology” or
access it directly via http://
www.cr.nps.gov/ncptt/irg/. Inthe gopher
select “Jobs, Conferences,...”, then
“Directories”, then “Internet Resources
for Heritage Conservation, Historic
Preservation, and Archeology”. Or go
directly to the gopher version via gopher: /
/gopher.ncptt.nps.gov/ directories/ irg.txt.
The IRG is intended as a guide to
“surfing” the “Net for preservatreiloatne d
information and includes Gopher and
WWW Servers, electronic journals,
listservs, usenet newsgroups, indices and
databases, library catalogs, FTP sites, and
fee-based services. TheG ophaned rWW W
A dagram showrny the components of the NCPTT Exmxronmental Exposure Chamber.
Organizations, National Agencies,
Internet Resources Guide
Sustainability, Archeology, Historical
Societies & SHPOs & State Archacologists,
Internet Resources for Heritage Conservahon, Historic
Muse& Cuonsemrvastio n, Research, and
Preservation, and Archeology, also known
Miscellaneous. Future plans for the IRG
informally as the IRG, is an annotated listing
include enhanced graphics and expansion
NCPTT Eavironmental Chamber of Internet resources of interest to the
and reorganoifz thae tcaitegoornies .
Facility preservation community. The originaIlRG
The Center would like to thank Peter
was created by Peter Stott,
Stott for his assistance in transferrintgh e
Northwestern State University Telecommunications Chair of the US
IRG to the Center and for his generosity in
and the Center are working together to Committee, International Council on
offering this valuable document to the
develop the new NCPTT Environmental Monuandm Sitees n(US/tICOsMOS ).
Center.
Chamber facility. The new research izcility It was distributed inJ anuary 1994 through
will be located at the Center's current the Clearinghouse of Subject-Oriented
headquarters in South Hall on NSU’s Internet Resource Guides, which was
campus. The large lab space will be the new maintained in a gopher at the University of
home to the Materials Research Michigan. Pehtas econtrinu ed to maintain
Programs Eavironmental Exposure and update the Guide on a regular basis with
new Internet sites. The document has, until
been used by Elliott Spiker at the United recently, been available both through the
States Geological Survey in Reston, Clearaind nviag thhe IoCOMuOSs Weor ld
Virgtio cnariry aou,t t he Program's studies Wide Web page.
on deposition rates of sulfur dioxide on In Sepotf 1e995,m Pebter etranrsfer red
marble and limestone surfaces. Completion responsibility for maintaining and updating
of the laboratory space and relocation of the IRG to the Center and it was posted on
the ch xmber are slated for June, 1996. This the Center’s gopher. Since the Centehra d
summer the NCPTT Materials Research no World Wide Web page at that time, Peter
Fellow, ElizaBeth Bede, will be studying graciously agreed to continue to update the
the deposition of sulfur dioxide on stone Web version on the ICOMOS page. Not
samples that have undergone various long ago, when the Center's own World
conservation treatments. For more Wide Web page (http:/ /www.cr.nps.gov/
neptt/) went onlin>, the Center took full
NCPTT NOTES 12-6
Preservation Weekend
Austin, Texas
Apni 19-21
A PreserWveeakentd ifoor onwne rs
and managers of histonc properties was held
Apni 19-21 in Austin, Texas. Sponsors for
the event were Texas Historical
Foundatioa, Texas Historical
Program at the University of Texas
Austin and the National Center. Over 40
preservationists from Austin, San Antomo
and other Central Texas cities and towns
attended.
Weekend activities began on Friday
evening with a reception in Battle Hall Preservation Weekend, Austin, Texas, Apnil 1996.
Library ai che University of Texas. Keynote
speaker John Robbins provided a
presentation entitled “Historic Preservation: On Saturday evening participants were Fran Gale attended the Diagnosing
Broadening our Perspective.” Saturday guests of the Charles Moore Moisture in Historic Buildings
morning speakers included Wayne Bell, Foundation. Following a brief symposium in Washington, May 6-8. Co-
ProfEmereituss osf Arochitrectu re ai presentation by curator Kevin Keim, on sponsors of the event were the National
the University of Texas at Austin, on Moore's work, participants toured the
the architecture heritage of Texas; Stam house, transformed hy Moore from “a very of the Association for Preservation
ordinary, existing dwelling into a place of TechnFneondsl oof Mgeridyian. Hi ll.
of Architecture with the Texas spirited habitation” following his arrival in and Friends of Great Falls Tavern.
Historical Commission, on the Ausan in 1984. Funded through the Center's PTTGrants
Commussion’s programs for homeowners; Sunday morning's tour of the Moore Program, the symposium focused on
Ann McGlone, Historic Preservation Hancock Farmstead, an early |9 th century diagnosing sources of mousture in histonc
Officer in the Sam Antonio Preservation farmhouse was equally inspiring. Owners buildings including ground moisture,
Office, on benefits and responsibilities of Mike and Karen Collins shared their morsture penetbuirldiang tenivelonpesg a nd
owning properties in histone distncts; and experiences with this painstaking moisture generated inside the building by
Dudley Dobie on financing restoration of restoration effort which began with an climate control systems. Approximately
the J.F. Dobie House in Austin. archeological investigation, archival sixty preservation practitioners attended the
Crafts demonstrations were scheduled research, and oral histones of former symposium, including architects, engineers,
during the afternoon = sessions residents. Working as a team, Mike and and architectural conservators.
Demonstration included John Volz, Volz Karen Collins completed nearly all the Opening presentations focused on the
and Associates, Architects, on building work on the house themselves. dynamics of moisture, differentiating
investigation, Judith Jacob, architectural Our co-sponsors in Austin did an between sources of moisture through
conservator with the National Park Service, excellent job in planning and organizing systematic diagnosis, and establishing
on paints and coatings; Mike Farmer. the Preservation Weekend. We hope to methodologies for identifying problems.
University ofT exas, School of Architecture, repeat the success of this event — our first The first day's afternoon session included
on woodworkJ,im Zeollo, Zollo Studios, on field work at Meridian Hill Park, a circa
Preservanon Weekend — in other locatons
stauned and ‘eaded glass; Lars Stanley, 1916 park that is one of the most
Lars Stanley Architects on metals; Kevin Diagnosing Moisture in Historic distinguished examples of landscape dengn
Jolly, Texas Histoncal Commission on in Washington. Syrmposrum participants
computers in preservation, and James and investigated mosture damage to exposed
Nathan Roppolo, A-Iex Waterproofing aggregate concrete of the Park's
on masonry repair architectural elements
public lecture at the Oregon History Center
on the Columbia River Goree as a cultural
landscape. Doherty used theC olumtRuiave r
Gorge as a case study for conservation and
preservanon methodologes. An edited
version of Doherty's lecture 1s included with
thes edinon of Votes.
PTT Board members and Center staff
visited the Watzek House on Apmi 24.
Designed by John Yeon in 1936, the house
is an outstanding example ofm odern design
and is listed on the National Register.
Current owner Richard Brown provided a
tour of this remarkable structure. The Watzek
House is a recent gift to the University of
Oregon's School of Architecture and Allied
Arts from the John Yeon Trust and Brown.
Society for American Archaeology
Naw Orleans
April 10-14
Watzek House, Portland, Oregon. Mark Gilberg and Mary Carroll
attended the 61st Annual Meetionf gth e
Seciety for American Archseology in
On the second day, presentations the preservation practitioners attending the New Orleans. The conference was attended
concentrated on understanding the symposium were able to discuss issues and by nearly 3000 archeologists and consisted
building envelope and the movement of potential soluvions. Diagnosing Moisturei n of almost 200 concurrent sessions. Pre-
moisture through walls. A case study on Histornc Buildings will be a model for future conference activities included the NPS
James Madison's home at Montpelier, workshops held in other locations. The Archeology and Ethnology Information
Virgima, was used to illustrate how proper curriculum and workbook for the Management Meeting organized by
diagnosis can lead to appropriate symposium will be modified based on Francis McManamon, Chief of
remediation. Dunthe naftegrno on session comments by participants and will be
participants visited Great Falls Tavern on available from the Center to persons and a session that was highlighted by a
the C&O Canal in Maryland where organizations interested in planning future presentation and question-and-answer
instruments for monitoring mossture were events. session with NPS Director Roger
demonstrated. Kennedy. Featured sessions included the
Final day sessions were at Gunston Opening Session organized by Vimcas P.
Hall, colomal plantation home of George Steponaitas (University of North Carolina)
Mason on the Potomac River in Virgimia. and Francis McManaenumtieod nAna m!
Presentations focused on how HVAC April 22-25 Momaments of the Lower Mussisnppn Valley, the
systems change moisture dynamics. Portland, Oregon, was the setting for Plenary Session organized by Nerman
Participants discussed managing moisture the Spring 1996 meeting of the Yoffee (Uniovf Meichrigasn) iandt enyutl ed
in house museums where care of the Preservation Technology and Appropmat Theory in Archaeological Imeshgahons,
building as well as *ts contents must be Training Board. [he meeting was hosted and the Public Session developed by the
addressed. During a tour ofG unston Hall by the Historic Preservation League SAA Public Education Commitatnde tietle d
participants surveyed existing conditions of Oregon, the Univerofs Oiretgoyn' s Tume Trauntvh Arechelolog y. Workshops offered
and reverwed monitoring data collected at School of Architeancd tAlluierd eArt s ranged from | '/: hours essoin o/ntnern et /0/:
the site and the Oregon History Center. In Draggintgh e World Wide Webt o 2 '/: day session
During this three-day symposium, addition to working sessions to discuss Center on the Natewe Amencan Graves Protechon and
visits to historic sites provided an activities and issues, PTT Board members Repatnaton Act. Nearly 60 exhibit booths
opportunity for participants to learn about and Center staff attended several events featured the latest archeological equipment,
sources of moisture affecting busldings, planned by our hosts. technology, publications, services and
how to manage moisture movement and On Apri 25, Jonathan L. Doherty, resources
about state-of-art equipment used to Executive Director of the Columbia The NCPTT was one of four sponsors
diagnose moisture problems. In addition River Gorge Commission, provided a of the Internet Access Center which allowed
the attendees to explore the World Wide
Web and to have access to e-mail. The
Center also mauntauned an exhibitor booth
in cooperation with colleagues from other
National Park Service offices and Parks
Canada. Mark Gilberg attended the Rock
Art Sate Management and Conservanon workshop
sponsored by the American Rock Art
Research Association) and Mary Carroll
attended GIS for Personal Computers: A Hands-
On Workshop taught by Kenneth L.
Kvamme Boston University. Two
workshops were sponsored in part by the
Center — Agent-Based Modeling of Pretastonc
Settlement Behanor wm the Four Corners Area
orgamzed by Timothy A. Kohler, and
Rendue Analyns: How You Can De ut and How
Much u Will Cost orgamzed by Noreen
Tuross.
Conserving Outdoor Sculpture
Little Rock, Arkansas DragnMorsoturse iin Bnualgding s, Gwiston Hall, May 1996.
April 26-27
The Arkansas Historic
Preservation Program hosted a Mrs. George Rose Smith's presentation Michigan Department of Naval
workshop on conserving outdoor sculpture on Mount Holly's history, Fran Gale helped Architecture and Marine
April 26-27i n Little Rock. Mary Striegel participants assess conditions of numerous Engineering. The purposes of the
and Fram Gale were instructors for the gravestones and monuments. At the conference are to improve awareness and
workshop. Geared toward owners of conclusion of the cemetery tour, the understanding of the different objectives,
outdoor sculpture, cemetery associations, partdiscaussedp setatingn pnotntiess gi ven methods and technoulsedo ign sihiepwsrec k
sculptors and conservators, the workshop the limited funds available for restoranon assessment and management, enhance
was sponsored in part by Save Outdoor work. technologies for shipwreck assessmenta;n d
Sculpt,ua nratero!na l inventanod rpubyli c develop collaborative approaches among
awareness project co-sponsored by the professionals and public and private
National Museum of American Art. organizations in shipwreck research, use
Smithsonian Institution, and the and management.
National Institute for the Conservation of For further information contact Ken
Vrana, at 517/353-9735, of
Presentationosn “Assessing Conditions [email protected].
Deep-Water Shipwreck Assessment:
of Outdoor Sculpture” on Friday mght were
Partnerships and Techrologies
part of the Arkansas Arts Center's “Evening The 24th Annual Meeting of the
Kellogg Center, Micngan State |n wernty
with the Arts” and were open to the public. AmeInrstituite fcor Caonsenrvat ion
June 7-8
On Saturday, the “motile” workshop began of Historic and Artistic Works (AIC)
This conference is being coordinated
with a survey of outdoor metal sculpture at Norfolk, Virgima
by the Center for Maritime and
the Arkansas Arts Center. Mary Stnegel June 11-16
Underwater Resource Management
led the discussioonn sourceso fd etenoration The main theme of this year’s AIC
at Michigan. Partucipation in the conference
affecting metals, resulting conditions, and meeting is collaboration in the visual arts.
1s by invitation only. The conference is part
conservation and maintenance procedures. More than | 25 papwille ber pressent ed at
of a program funded by .oe Michigan Sea
The afternoon session took place at the meeting on this topic and others,
Grant College Program and the
Mount Holly Cemetery, a four-square including digital imaging for conservation
National Oceanic and Atmospheric
block area estabals ai cistyh ceemetder y in and environmental standards and the role
Association and involves Michigan
1843. Listed on the National Register of of the conservator. The meetwiill nincglud e
State University, Woods Hole
Histonc Places, Mount Holly contains grave specialty group sessions and a poster session.
Oceanographic Institution Marine
markers of exceptional quality. Following Specialty group sessions will focus on recent
Policy Center, and the Universityo f
conservation projects in architecture, book
NCPTT NOTES 12-9
discuss their own conservation needs.
The goal of the workshop series is to
forge links between s- uthNeew Ernglnand 's
professional conservators and the stewards
of its many histornc treasures. Because few
small museums have the beneoff ini-hotus e
consethresev woarksthopos arre sdes,ign ed
to supply professional support and training.
The first workshop on Building
Conservation was April 30; Textile
Conservatwais oMnay 2! ; and Furniture/
Photographs/Paper Conservation will be
June 25. For more information contact
Jeanne Zavada or Briann Greenfield at
Slater Mill Historic Site, 401/725-8638.
Preservation Education Skills fer
Buikiing Trades Teachers
Burts gton, Vermont
July 3-12
Preservation Education Skills for
Conserving Outdoor Sculpture, Little Rock, Arkansas, Apnil 1996. Buildi-; Trades Teachers also was
funded through the TPGTr ants program.
This week long pilot course will explore
and paper, photographic materials, objects maintenance personnel, architects and
methods for integrating hands-on building
and sculpture, paintings, textiles, and contractors. Topics covered in the workshop
conservation and historic preservation
wooden artifacts. include documenting, conserving and
mstruction into building trades curncula.
A preconference workshop, replicating decorative finishes. In addition
Developed by the University of
Preservation of Collections: to classroom lectures, the workshop will
Vermont's Historic Preservation
Assessment, Evaluation, and provide hands-on training in creating faux Proandg Hisrtoriac Wimndso r, Inc..,
Mitigation Strategies, will be held on finishes such as graining and znarbling. For
the course will be held in Burlington at the
June 10-11. The workshop will acquaint more information contact Judy Hayward,
Historic Preservation Summer
curators, registrars, conservators, Histone Windsor, 802/674-6752.
Institute
preservation librarians, collections
In addition to studying preservation
managers, collections care specialists, and Preserving Our Endangered Past: A
philosophies, standards, strategics, and
archivists with topics such as preservation Serofi Woerksshop s
conservation techniques, participants will
needs for small and large museums, Pawtucket, Rhode Island
examine how these instructional programs
environmental standards, mitigation of the June 25
can be implemented. Designed for high
effects of shock and vibration, and A series of day-long workshops in
school and post-secondary building trades
monitoring of contaminants. For more presaend rconvservaatiton iof obuilndin gs,
instructors, as well as other teachers
information on the meeting or textiles, furniture, photographs, and paper
interested in histornc preservation, this three
preconference workshop, contact the AIC, will be held at Slater Mill Historic Site
credit course 1s intended to meet continuing
202/ 452-9545. in Pawtucket, Rhesde Island. The workshop
education requirements for teacher
senes was funded through the TPGTr ants
certificanon. This limited enrollment week-
Program. Designed for museum
long course is scheduled for July 8-12. For
Conservation and Replication «fi professionals and volunteers workung in
more information contact Tom Visser at
Decorative Finishes smal] museums or histoncal socsreties and
Univerosf Viertmoynt Histonc Preservation
Natchatoches for owners of historic properties, these
Program, 802/656-0577
June 29-July | workshops will offer low-tech and low-cost
Historic Windsor plans to offer solutions to a variety of preservation
Saving Historic Architecture and
Conservation and Replication of problems. Recognized experts from the
Antiques
Decorative Finishes in Natchitoches southern New England area will provide
Naichaatnd ootcherh loecaston :
during June. Mary Lou Davis is the informative lectures, hands-on
July 18 and other dates
instructor for Decorative Finishes, a three- demonstrations, and helpful reference
The National Park Service iss ponsoring
day workshop for professional painters, guides. Participants are encouraged to
a series of one-day workshops to assist