Task 59
Task 59
SHC Task 59

Renovating Historic Buildings Towards Zero Energy

Project (Task) Publications

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The following are publications developed under Task 59:

General Task Publications

Task 59 Renovating Historic Buildings
Task 59 Renovating Historic Buildings
Task Flyer
January 2019 - PDF 0.85MB - Posted: 2019-01-15
Publisher: Task 59

Historic buildings constitute a considerable part of our building stock and are the trademark of numerous cities.  Historic buildings will, however, only survive if kept in use. To save this heritage for future generations, we need to find conservation compatible, renovation approaches and measures that preserve the heritage values of these buildings while improving user comfort, lowering energy bills and minimizing environmental impacts.

Other

Articles

Dynamic thermal and hygrometric simulation of historical buildings: Critical factors and possible solutions
February 2020 - Posted: 2020-04-20
By: G.G. Akkurt, N. Aste, J. Borderon, A. Buda, M. Calzolari, D. Chunge, V. Costanzo, C. Del Perob, G. Evola, H.E. Huerto-Cardenas, F.Leonforte, A. Lo Faro, E. Lucchi, L. Marletta, F. Nocerag, V. Pracchi, C. Turhan
Publisher: Science Direct, Volume 118

Building dynamic simulation tools, traditionally used to study the hygrothermal performance of new buildings during the preliminary design steps, have been recently adopted also in historical buildings, as a tool to investigate possible strategies for their conservation and the suitability of energy retrofit scenarios, according to the boundary conditions.

However, designers often face with the lack of reliable thermophysical input data for various envelope components as well as with some intrinsic limitations in the simulation models, especially to describe the geometric features and peculiarities of the heritage buildings. This paper attempts to bridge this knowledge gap, providing critical factors and possible solutions to support hygrothermal simulations of historical buildings.

Click here to access the full version

Deep renovation of historic buildings: The IEA-SHC Task 59 path towards the lowest possible energy demand and CO2 emissions
October 2019 - Posted: 2020-04-20
By: Daniel Herrera-Avellanosa, Franziska Haas, Gustaf Leijonhufvud, Tor Brostrom, Alessia Buda, Valeria Pracchi, Amanda Laurel Webb, Walter Hüttler, Alexandra Troi
Publisher: International Journal of Building Pathology and Adaptation

Improving the energy performance of historic buildings has the potential to reduce carbon emissions while protecting built heritage through its continued use. However, implementing energy retrofits in these buildings faces social, economic, and technical barriers. The purpose of this conceptual paper is to present the approach of IEA-SHC Task 59 to address some of these barriers.

Click here to access the full version.

Abstracts - From REHABEND (postponed until September)

DISSEMINATION OF BEST-PRACTICE IN ENERGY RETROFIT OF HISTORIC BUILDINGS
RAINHOF, A CASE STUDY IN THE ITALIAN ALPS
September 2020 - Posted: 2020-04-20
By: Herrera-Avellanosa, Daniel; Exner, Dagmar; Haas, Franziska; Troi, Alexandra
Publisher: REHABEND
ACCEPTANCE OF BUILDING INTEGRATED PHOTOVOLTAIC (BIPV) IN HERITAGE BUILDINGS AND LANDSCAPES: POTENTIALS, BARRIERS AND ASSESSMENT CRITERIA
September 2020 - Posted: 2020-04-20
By: Polo Lopez, Cristina S.; Lucchi, Elena; Franco, Giovanna
Publisher: REHABEND
3D-GIS MODELS TO SUPPORT THE CO-CREATION OF ENERGY EFFICIENT STRATEGIES FOR HISTORIC URBAN ENVIRONMENTS
September 2020 - Posted: 2020-04-20
By: Egusquiza, Aitziber; Izkara, Jose Luis; Prieto, Iñak
Publisher: REHABEND

Abstracts - From EEHB 2018

How to estimate material properties for external walls in historic buildings before applying internal insulation
September 2018 - Posted: 2019-11-14
By: E.J. de Place Hansen and E.B. Møller
Editor: Tor Broström, Lisa Nilsen and Susanna Carlsten
Publisher: EEHB 2018

Before deciding how to improve the energy efficiency of historic buildings by applying thermal insulation, an estimation of consequences, e.g. changes in heat and moisture flux, must be made. In the EU-project RIBuild, attempts have been made to cluster historic building materials; enabling a user to choose an appropriate material and include uncertainties. Unfortunately, the decisiveness of properties depended on whether e.g. conditions at external or internal surface of the brick wall were considered.

Click here for the full version, p. 43.

Historic Building Atlas: Sharing best practices to close the gap between research and practice
September 2018 - Posted: 2020-04-20
By: F. Haas, D. Herrera, W. Huttler, D. Exner, and A. Troi
Publisher: EEHB 2018

Energy retrofit of historic buildings is a relatively new task in the construction sector. It is therefore important to offer reliable solutions to practitioners and end-users that prevent any undesired outcome. Often, the lack of trust and awareness of the available solutions is limiting the extent of interventions. This has a negative effect on the final energy savings and occupants’ comfort, important factors when it comes to the use and conservation of historic buildings. The Atlas will provide an international collection of exemplary case studies that go beyond current practice in their scope and in depth of information provided. This unique collection of experience from all over the world will allow architects and building owners to browse through best practice examples and find the most relevant information to pursue their own renovation. The purpose of this paper is to show and discuss the need for such a repository as well as the functions and possibilities of the database.

Click here for the full version, p. 238.

Outlining a methodology for assessing deterioration threshold criteria
September 2018 - Posted: 2019-11-14
By: L. Lång, P. Johansson, C-M. Capener, H. Janssen, J. Langmans, E. Møller, M. D’Orazio and E. Quagliarini
Editor: Tor Broström, Lisa Nilsen and Susanna Carlsten
Publisher: EEHB 2018

This paper describes a methodology for assessing damage threshold criteria. The methodology includes a survey and determination of threshold values for deterioration, which can then be used to evaluate the risk in specific structures of external walls. The work includes summarizing existing knowledge and adapting and developing models for failure modes based on field and laboratory testing. Failure modes include frost damage of the exterior façade layer, rot and mould growth within the building envelope and adjoining structures, as well as discolouring of façade surfaces due to biological growth.

Click here for the full version, p. 34.

Energy savings due to internal façade insulation in historic buildings
September 2018 - Posted: 2019-11-14
Editor: Tor Broström, Lisa Nilsen and Susanna Carlsten
Publisher: EEHB 2018

The paper presents desktop analyses of potential energy savings in historic buildings, carried out using standard boundary conditions for calculation of energy savings, as prescribed in the European building energy performance certification schemes. Internal insulation of the building’s façades can potentially reduce the theoretical energy demand for space heating by 9 to 43 % compared to the energy demand of the original building if installed moisture-safe. Combined with other commonly used energy saving measures, 43–78 % reduction of the energy demand was estimated.

Click here for the full version, p. 24.

What’s behind the façade?
September 2018 - Posted: 2020-04-22
By: G. Leijonhufvud, M. Tunefalk and M. Legnér
Publisher: EEHB 2018

Energy efficiency policies might have a negative impact on the heritage values of buildings, an issue widely recognized in Sweden during and after the extensive energy efficiency programme ‘Energy savings plan for existing buildings’ (EBB 1977–84). The purpose of this paper is to assess the long-term impact of the EBB on an urban district in Gävle, Sweden. The district comprises 69 single- and multi-family detached houses built between the 1920’s and 1950’s. Using archival sources and field studies we describe how the buildings have been modified and trace the role of the EBB on the district as a whole. The results show that despite that the EBB has had a major impact on the district, it is difficult to disentangle its role in relation to other factors. The study raises concerns over the common approach in policy making to draw distinct lines in the sand between heritage and non-heritage buildings.

Click here for the full verison, p. 193.

The effect of climate change on the future performance of retrofitted historic buildings
September 2018 - Posted: 2020-04-22
By: L. Hao, D. Herrera and A. Troi
Publisher: EEHB 2018

Historic buildings account for more than one quarter of Europe’s existing building stock and are going to be crucial in the achievement of future energy targets. In order to ensure their endurance, conservation compatible solutions are needed. Nevertheless, some alteration in the climate is already certain and therefore the impact of climate change on retrofitted historic buildings should be considered in terms of occupants’ comfort, heritage conservation, and energy performance. Inappropriate interventions might weaken the potential of original passive climate adaptive system, such as thermal mass and night cooling, leading to higher risks of overheating. Similarly, retrofit solutions will change the moisture dynamics of historic envelopes, which might lead to moisture damages when combined with more extreme precipitation events. This paper reviews recent literature that provides evidence of climate change’s impact on retrofitted buildings, reveals potential future risks, and thereby throws light on new factors influencing the retrofit decision-making process.

Click here for the full version, p. 62.

Decision support tool for the innovative and sustainable renovation of historic buildings (HISTool)
September 2018 - Posted: 2020-04-22
By: W. Hüttler, D. Bachner, G. Hofer, M. Krempl, G. Trimmel and I. Wall
Publisher: EEHB 2018

The HISTool is a software-based tool for the analysis of the current building status, and a decision support tool for the innovative and sustainable renovation specifically of Gründerzeit buildings. These were built between 1840 and 1918 with partially standardized designs and components in CentralEuropean cities. The tool is designed to be applied particularly in the preparation and decision-making stage of renovation projects in the Gründerzeit building sector, prior to the actual planning phase. For the decision-making process, it is essential to provide solid data on different renovation options in an early phase based on life-cycle costs, without a lot of calculation effort. The calculation is based on a model of the building, which consists of 40 elements according to the specifics of Gründerzeit buildings and the selection of predefined renovation measures. The integrated energy performance and life-cycle cost calculation leads to the derivation of life-cycle costs of different renovation variants. A comparison of life-cycle costs of different renovation options leads to information-based renovation decisions. The aim is to stimulate the Gründerzeit sector in the real estate market to implement more energy-efficient and innovative renovations, which are compatible with the specific requirements of historic buildings, and to contribute to the fulfilment of the climate-protection goals. HISTool particularly reflects the environmental and economic goals of sustainable management of historic buildings according to EN 16883, and supports the planning and decision making procedure in the first phase as well as in the detailed planning phase when it comes to the selection of specific measures and assessment against the initial project targets.

Click here for the full version, p. 227.

Removable textile devices to improve the energy efficiency of historic buildings
September 2018 - Posted: 2020-04-22
By: V. Pracchi, E. Rosina, A. Zanelli and C. Monticelli
Publisher: EEHB 2018

The paper aims to present innovative studies concerning removable devices for enhancing thermal performance or mitigating criticalities in listed buildings. The first concerns a “high tech” curtain studied for preventing air drafts from the windows, causing different forms of decay in the Sala delle Asse in Castello Sforzesco (Milano), world known for the Leonardo Da Vinci fresco. The second body of research deals with a new type of “arazzo” (removable and usable seasonally) to improve the insulation of the walls. The study case regards the collection of historic “arazzi” in Sala della Balla, in Castello Sforzesco as well.
The focus is to investigate how the main properties of the removable devices  affect the thermal exchange with the air and the surfaces where they are applied. A third study case is a masterpiece of listed modern architecture, Casa del Fascio in Como, where the new uses require cooling with the addition of a shadowing system.

Click here for the full version, p. 129.

The “Waaghaus” of Bolzano
September 2018 - Posted: 2020-04-22
By: D. Exner, M. Larcher, A. Belleri, A. Troi and F. Haas
Publisher: EEHB 2018

The present paper analyzes the renovation project of a heritage medieval building located in the city center of Bolzano–the “Waaghaus”. The building has been used as case study in the EU-project 3encult, where it has been extensively studied both from heritage and energy efficiency points of view. Our analysis, partly based on the experience gained in the EU-project, aims at validating and improving the renovation project that was developed by a design team commissioned by the owner. In particular three aspects of the renovation are mainly investigated: 1) Reduction of the energy demand 2) Indoor climate and air quality 3) Hygrothermal risk in critical points. Results show that the proposed renovation cuts the energy demand to 60 percent. Moreover they demonstrate that, when renovating a historic building, it is crucial to carefully investigate the ventilation strategy and the critical construction details. Not considering these two aspects can lead to poor air quality and to a significant risk of surface mould and condensation formation.

Click here for the full version, p. 137.

Potentialities and criticalities of different retrofit guidelines in their application on different case studies
September 2018 - Posted: 2020-04-22
By: V. Pracchi and A. Buda
Publisher: EEHB 2018

The paper aims to investigate criticalities and potentialities of the Italian Cultural Heritage Ministry’s Guidelines (October 2015) and the European Guidelines for Improving Energy Performance of Historic Buildings (EN 16883 – June 2017), comparing and applying them to selected case studies. The documents represent an instrument to help public authorities and designers to follow an iterative retrofit process; in both cases it is possible to notice some difficulties in their technical application. Thus, we have identified their critical and positive features through the case studies assessment. The scope is to underline possible issues and to suggest new solutions in both cases, improving the existing guidelines with other targets to obtain a calibrated evaluation method, which could guide the retrofit project.

Click here for the full version, p. 285.

Combining multi-view photogrammetry and wireless sensor networks when modelling the hygrothermal behaviour of heritage buildings
September 2018 - Posted: 2020-04-22
By: S. Dubois, M. de Bouw, Y. Vanhellemont, D. Stiernon and S. Trachte
Publisher: EEHB 2018

The construction sector has now entered the ‘Digital era’, and professionals are slowly getting familiar with many of these innovative technologies. This paper shows how such innovations improve the investigation phase when it comes to energy retrofits on heritage buildings. More specifically, multi-view photogrammetry and wireless sensor networks can facilitate the implementation and enhance the relevance of building hygrothermal and energy simulations: photogrammetry quickens up the reproduction of the building geometry whereas wireless sensor networks facilitate and enlarge the collection of data relative to the existing behaviour of an occupied building. This paper explores the benefits of using those two technologies compared to more traditional solutions, regarding data quality and general workflow. In this purpose, two case studies from research projects ongoing in Belgium are briefly described.

Click here for the full version, p. 156.

Presentations

Energy Efficiency Seminar 2020
Energy Efficiency Seminar 2020
Inspiring Good Practices
February 2020 - PDF 5.33MB - Posted: 2020-04-22
By: Daniel Herrera
Energy Efficiency Seminar 2020
Energy Efficiency Seminar 2020
Engaging Owners in Energy Renovations: a case study of farmhouse refurbishment in Alsace, France
February 2020 - PDF 4.08MB - Posted: 2020-04-22
By: Julien Borderon
Renovate Europe Day, Brussels
October 2019 - Posted: 2020-04-20

Several of the project’s partners were able to attend the European Parliament in Brussels, Belgium for the Renovate Europe’s REDay 2019. This took place on Tuesday 8th October 2019. In addition to participating in round tables, presentations and discussions, several of the task’s case studies were also features as part of the REDay Exhibition, which stayed on display until the 11th October. This exhibition was a showcase of best practice renovation projects and programmes which can prove that energy renovation is not only possible, but already happening across the world. On the task’s part, we showcased Scottish renovated buildings as well as the work done in Villa Castelli, Italy, which is using 90% less energy. EURAC’s Daniel Herrera gave a presentation on the development of the ATLAS project database at the conference before the opening of the exhibition.

European Congress on the Use, Management and Conservation of Historic Buildings, Burghauptmannschaft Osterreich
October 2019 - Posted: 2020-04-21

- Dr. Alexandra Troi -- EA Project: SHC Task 59 Renovating Historic Buildings Towards Zero Energy
- Walter Hüttler -- Use of Renewable Energy in Historic Buildings – What Can Research Do?
- Daniel Herrera -- Lightning Talk 2.1: ATLAS, a Best Practice Database for the Energy Retrofit of Historic Buildings
- Julien Borderon -- Lightning Talk 2.2: Case Study in France
- Tor Borström -- Lightning Talk 2.3
- Valentina Marincioni -- Lightning Talk 2.4: Driving Retrofit Quality in the UK
- Fabrizio Leonforte -- Lightning Talk 2.5: Energy Performance
- Ernst Jan de Place Hansen -- Lightning Talk 2.6: Guidelines from the European project RIBuild

This conference from mid-October, held at the European Congress on the Use, Management and Conservation of Buildings of Historical Value, featured several talks from the project’s partners and relating to Task59. Firstly, we saw two invited speaks amongst our partners: Dr Alexandra Troi of EURAC Research giving an overview of Task59, and Walter Hüttler of e7 energy innovation & engineering speaking on the role of research in the use of renewable energy in historic buildings.

Following this was a parallel session dedicated to Task59 and featuring presentations from project partners under the topics of Best Practices: Engaging Owners in Energy Renovations; Quality Assurance in Energy Retrofits: The Role of Standards and Simulation and Energy Retrofits: Tools for Better Decision Making.

SUPSI, Dipartimento ambiente costruzioni e design, Aula Magna, Campus Trevano
July 2019 - Posted: 2020-04-20
By: Daniel Herrera

Mr. Herrera presented at this conference that covered the integration of solar energy in historic buildings, energy recovery, and Building Integrated Photovoltaics (BIPV) in architecture.

Sustainable Urban Energy Systems Conference, TU Delft Science Centre
November 2018 - Posted: 2020-04-20
By: Daniel Herrera

Mr. Herrera presented at this conference which approached and explored the technological, economic, ethical, behavioral, governance and public policy aspects of (analyzing and designing) urban energy systems. The conference was from a comprehensive engineering perspective, and aimed at highlighting current trends and issues affecting urban energy systems.

Interreg VIOLET Presentation
October 2018 - Posted: 2020-04-20
By: Daniel Herrera, Aitziber Egusquiza

Mr. Herrera and Ms. Aitziber Egusquiza, of Task 59 partner Tecnalia Research & Innovation shared their experience on Historic NZEB at the European Wise Event, organised by the Interreg Europe project VIOLET (preserVe tradItiOnal buiLdings through Energy reducTion) in Seville, Spain. Ms. Egusquiza presented the details of a methodology for decision making in the energy retrofit of historic areas and Mr. Herrera outlined the activities developed in Task 59 aimed at bridging the gap between research and practice in the renovation of historic buildings.

Solar Renovation of Historic Buildings: Towards a Zero Energy Built Heritage
September 2018 - Posted: 2018-10-12
By: Daniel Herrera

Keynote Presentation at EuroSun 2018 on October 12, 2018 by Daniel Herrera.  Talk: Historic buildings are trademarks of many cities but they will only survive if maintained as living spaces. Finding conservation-compatible technologies will be crucial for the built heritage and the opportunities for solar energy integration are far more substantial than one might initially expect.

Highlights

Task 59 Highlights 2018
Task 59 Highlights 2018
April 2019 - PDF 0.22MB - Posted: 2019-04-03
Publisher: Task 59

Historic buildings represent a large share of the existing building stock. They are the trademark of numerous cities, and they will only survive if maintained as a living space. In order to preserve this heritage, we need to find conservation compatible energy retrofit approaches and solutions, which allow maintaining the historic and aesthetic values while increasing comfort, lowering energy bills and minimizing environmental impact. 

In the last 10 years a shift in paradigm could be observed: While in times of the first EPBD, a strong opposition from conservators and architects could be observed – “don’t touch these buildings” – there is growing a new openness, a much more constructive approach – “let’s find the right solutions together”. Now is an important moment to identify and promote good approaches and solutions.

Supporting Documents - From the project RIBuild

Quasi-Monte Carlo based uncertainty analysis: Sampling efficiency and error estimation in engineering applications
November 2019 - Posted: 2019-11-08
By: Tianfeng Hou, Dirk Nuyens, Staf Roels, Hans Janssen
Publisher: Reliability Engineering & System Safety, Volume 191

In probabilistic assessment via Monte Carlo sampling efficiency is of high importance. It is shown that Quasi-Monte Carlo mostly performs better than standard Monte Carlo. Depending on the smoothness of the function and the number of dominant parameters. Randomization techniques on Quasi-Monte Carlo allows assessing sampling accuracy.In probabilistic assessment via Monte Carlo sampling efficiency is of high importance. It is shown that Quasi-Monte Carlo mostly performs better than standard Monte Carlo. Depending on the smoothness of the function and the number of dominant parameters. Randomization techniques on Quasi-Monte Carlo allows assessing sampling accuracy.

Click here to access the full version.

To learn more information about the project RIBuild, click here.

Trilemma of historic buildings: Smart district heating systems, bioeconomy and energy efficiency
November 2019 - Posted: 2019-11-08
By: Andra Blumberga, Ritvars Freimanis, Indra Muizniece, Kriss Spalvins, Dagnija Blumberga
Publisher: Energy, Volume 186

Novel insulation material made from pine needles based on bioeconomy principles is tested. Insulation material without/with lime treatment was tested for application as internal insulation for historic buildings. Insulation material is highly porous, has high moisture transfer and storage capacity, and is good hygric regulator. No mold growth was detected at 85% relative humidity for lime treated samples.

Get full access to the publication here.

Neural networks for metamodelling the hygrothermal behaviour of building components
September 2019 - Posted: 2019-11-08
By: Astrid Tijskens, Staf Roels, Hans Janssen
Publisher: Building and Environment, Volume 162

A metamodel with a memory mechanism is required to accurately predict hygrothermal time series. Recurrent neural networks and dilated causal convolutional networks are able to capture the complex patterns of the hygrothermal response. To predict the relative humidity, dilated causal convolutional neural networks perform significantly better than recurrent neural networks. Dilated causal convolutional networks are 10 times faster to train on the current example, compared to recurrent neural networks.

Get access to the full publication here.

The effects of wind-driven rain on the hygrothermal conditions behind wooden beam ends and at the interfaces between internal insulation and existing solid masonry
August 2019 - Posted: 2019-11-08
By: Tessa Kvist Hansen, Søren Peter Bjarløv, Ruut Peuhkuri
Publisher: Energy and Buildings, Volume 196

Wind-driven rain (WDR) quantification performed experimentally on 2 case buildings. Effect of WDR on hygrothermal conditions in internally insulated masonry studied. Numerical simulations to determine WDR effect on hygrothermal performance. WDR models were found to overestimate WDR deposition. Direct influence of WDR events on RH behind insulation was not detected.

The full publication can be found here.

Hygric properties of porous building materials (IV) Semi-permeable membrane and psychrometer methods for measure moisture storage curves
April 2019 - Posted: 2020-04-21
By: Chi Feng, Hans Janssen
Publisher: Building and Environment

The moisture storage curve is an important hygric property of porous building materials. It describes the moisture storage characteristic of a material via the relation between the moisture content and the moisture potential. Current experimental protocols for measuring moisture storage curves are not satisfactory, as they often require extensive facilities while still lacking the capability to handle the adsorption process in most of the over-hygroscopic range. This paper proposes two novel and simple methods – the semi-permeable membrane method and the psychrometer method – to solve these issues. Measurements on calcium silicate, autoclaved aerated concrete and ceramic brick are performed and validated by comparing the experimental outcomes obtained from these two novel methods and from other existing protocols. It is proven that the semi-permeable membrane method and the psychrometer method are applicable for both adsorption and desorption processes, the latter both from saturated and capillary moisture content. Limited by the accuracy of the psychrometer and the condensation caused by temperature fluctuations, these two methods show their best applicable range for capillary pressures below −1·105?Pa. The semi-permeable membrane method and the psychrometer method also feature in low cost, simple handling and application efficiency.

Click here for full article.

Effect of temperature and relative humidity on algae biofouling on different fired brick surfaces
February 2019 - Posted: 2019-11-08
By: Enrico Quagliarini, Andrea Gianangeli, Marco D'Orazio, Benedetta Gregorini, Andrea Osimani, Lucia Aquilanti, Francesca Clementi
Publisher: Construction and Building Materials, Vol. 199

Microalgae biofouling on different porous and rough fired brick surfaces was studied. Its growth under different values of relative humidity and temperature was tested. At relative humidity lower than 98% no growth was present. Temperature influenced algae growth rate and covered area as a function of time. Biofouling experimental results were modelled by a modified Avrami’s law.

Click here for full access to the publication.

Building Retrofit Measures and Design: A Probabilistic Approach for LCA
October 2018 - Posted: 2019-11-14
By: Claudio Favi, Elisa Di Giuseppe, Marco D’Orazio, Marta Rossi and Michele Germani
Publisher: Sustainability

This paper presents a new and structured approach to address uncertainty and sensitivity analysis in Life Cycle Assessment (LCA) to support the decision-making process in building renovation. This “probabilistic” approach to LCA allows for the obtaining of results expressed as ranges of environmental impacts and for alternative solutions, offering an idea of the meaning of input parameters’ uncertainties and their influence on the result. The methodology application is illustrated through a case study where three building retrofit measures were assessed. Results provide an insight about the uncertainties of LCA indicators in terms of climate change and non-renewable energy.

Please visit MDPI for the full publication.

Laboratory Investigation of Latvian Historic Brick and Measurements of Water Movement in Historic Masonry Walls
May 2017 - Posted: 2019-11-14
By: Reinis Purvins, Edite Biseniece, Andra Blumberga
Publisher: Energy Procedia

Experimental laboratory tests including density, water absorption, soluble salts, compressive strength and freeze-thaw resistance have been done on clay, concrete and silicate bricks from 6 masonry buildings in Latvia following CEN standards with adjustments for historic bricks. In addition, in-situ measurements of moisture content in brick masonry walls were done over a 5 month period using Trotec micro-wave apparatus.

Click here for access to the full article.

State of the art on historic building insulation materials and retrofit strategies
March 2016 - Posted: 2019-11-14
By: Andra Blumberga, Kristaps Kašs, Edite Kamendere, Gatis Žogla, Agris Kamenders, Dagnija Blumberga, Armands Gravelsinš, Reinis Purvinš, Marika Roša, Lelde Timma, Hans Janssen, Peggy Freudenberg, Fredrik Stahl, Ruut Peuhkuri, Pierryves Padey, Sebastien Lasvaux, Elisa di Giuseppe, Ernst Jan de Place Hansen
Publisher: RIBuild Deliverable D1.2

This report provides an analysis and evaluation of a state-of-the-art of internal insulation materials and methods for application in historic buildings, and review on methods, tools and guidelines used as decision-making tools for implementation of internal insulation in historic buildings. The survey is limited to buildings with heavy walls (stone, brick, timber framing), thus excluding wooden buildings.

For the full report, please visit the RIBuild project website.

Supporting Documents - Other relevant literature by Task authors

Categorization of South Tyrolean Built Heritage with Consideration of the Impact of Climate Change
December 2019 - Posted: 2020-04-20
By: Lingjun Hao, Daniel Herrera-Avellanosa, Claudio Del Pero, and Alexandra Troi
Publisher: Climate 2019, 7(12), 139
Wooden windows in the historic alpine architecture: Balancing energy and conservation needs
December 2018 - Posted: 2020-04-20
By: Daniel Herrera, Dagmar Exner, Marco Larcher, Alexandra Troi
Publisher: PLEA 2018 HONG KONG
Life cycle assessment in improving the sustainability of existing buildings: Some issues in historic buildings
July 2018 - Posted: 2018-10-12
By: Hao, L., Lavagna, M., Troi, A., & Herrera, D.

The XII Italian LCA Network Conference. Life Cycle Thinking in decision-making for sustainability: from public policies to private businesses, 11-12 June 2018, Messina, Italy.