19 results on '"Hansen, Tessa Kvist"'
Search Results
2. Climate data for moisture simulations: producing a Danish moisture reference year and comparison with previously used reference year locations
- Author
-
Jensen, Nickolaj Feldt, primary, Hansen, Tessa Kvist, additional, Svane, Anne Marie, additional, Morelli, Martin, additional, and Waagepetersen, Rasmus, additional
- Published
- 2023
- Full Text
- View/download PDF
3. Long term in situ measurements of hygrothermal conditions at critical points in four cases of internally insulated historic solid masonry walls
- Author
-
Hansen, Tessa Kvist, Bjarløv, Søren Peter, Peuhkuri, Ruut Hannele, and Harrestrup, Maria
- Published
- 2018
- Full Text
- View/download PDF
4. Case Study:6 years of monitoring of hygrothermal conditions behind internal insulation on masonry walls
- Author
-
Hansen, Tessa Kvist, Møller, Eva B., and Morelli, Martin
- Subjects
Additional insulation ,Energy demand ,SDG 13 - Climate Action ,Energy savings ,Energy retrofitting ,SDG 12 - Responsible Consumption and Production - Abstract
Energy retrofitting is performed to reduce the energy demand from existing buildings. Different measures can be implemented; however, older buildings will likely never live up to the demands of new construction. Nevertheless, the potential for energy savings must be pursued. Additional insulation is a retrofitting measure that can reduce heat loss through the building envelope and thereby provide energy savings. Internal insulation is introduced when external insulation, a more robust and moisture-safe measure, is not possible. Besides energy savings, internal insulation can provide increased thermal comfort. However, the indoor climate may suffer from internal insulation, if not designed, installed, and managed properly. Internal insulation increases the risk of moisture accumulation behind the insulation, which increases the risk of mold growth and other degradation processes. The current paper presents a case study of a building complex from 1961, where six adjoining apartments were internally insulated in 2015. The external walls were 360 mm (14.2 in.) thick, consisting of yellow brick (externally) and lightweight clinker concrete (internally). The walls were insulated with 50 mm (2.0 in.) (façades) and 80 mm (3.1 in.) (gable) insulation with a semi-diffusion tight and supposedly capillary active system, while the wall in the stairwell (north) was insulated with 50 mm (2.0 in.) of diffusion open and capillary active calcium silicate. For 6 years, the hygrothermal conditions were monitored in the interface between wall and internal insulation, where there is high risk of moisture accumulation. Measurements were performed in both northern (façade), southern (façade), and western (gable) orientations. The paper presents methods used, results from the in-situ measurements, and analysis hereof. The results show acceptable hygrothermal conditions at the interfaces and very little risk of mold growth. Furthermore, 6-12 months after applying internal insulation, the built-in moisture was dried out. Energy retrofitting is performed to reduce the energy demand from existing buildings. Different measures can be implemented; however, older buildings will likely never live up to the demands of new construction. Nevertheless, the potential for energy savings must be pursued. Additional insulation is a retrofitting measure that can reduce heat loss through the building envelope and thereby provide energy savings. Internal insulation is introduced when external insulation, a more robust and moisture-safe measure, is not possible. Besides energy savings, internal insulation can provide increased thermal comfort. However, the indoor climate may suffer from internal insulation, if not designed, installed, and managed properly. Internal insulation increases the risk of moisture accumulation behind the insulation, which increases the risk of mold growth and other degradation processes. The current paper presents a case study of a building complex from 1961, where six adjoining apartments were internally insulated in 2015. The external walls were 360 mm (14.2 in.) thick, consisting of yellow brick (externally) and lightweight clinker concrete (internally). The walls were insulated with 50 mm (2.0 in.) (façades) and 80 mm (3.1 in.) (gable) insulation with a semi-diffusion tight and supposedly capillary active system, while the wall in the stairwell (north) was insulated with 50 mm (2.0 in.) of diffusion open and capillary active calcium silicate. For 6 years, the hygrothermal conditions were monitored in the interface between wall and internal insulation, where there is high risk of moisture accumulation. Measurements were performed in both northern (façade), southern (façade), and western (gable) orientations. The paper presents methods used, results from the in-situ measurements, and analysis hereof. The results show acceptable hygrothermal conditions at the interfaces and very little risk of mold growth. Furthermore, 6-12 months after applying internal insulation, the built-in moisture was dried out.
- Published
- 2022
5. Performance of Polyethylene Vapor Barrier Systems in Temperate Climates
- Author
-
Rasmussen, Torben Valdbjørn, primary, Hansen, Tessa Kvist, additional, Shashoua, Yvonne, additional, Ottosen, Lisbeth M., additional, Pedersen, Louise Green, additional, Nielsen, Jens Kromann, additional, and Steenstrup, Frederik R., additional
- Published
- 2022
- Full Text
- View/download PDF
6. Anvendelse af træ i byggeriet:Potentialer og barrierer
- Author
-
Rasmussen, Torben Valdbjørn, Rasmussen, Birgit, Andersen, Helle Vibeke, Birgisdottir, Harpa, Nielsen, Jørgen, Jermiin, Louise, Harrestrup, Maria, Hansen, Tessa Kvist, and Cornelius, Thomas
- Subjects
Canada ,arkitektur ,Tyskland ,Norge ,udfordring ,Danmark ,byggeri ,substitution ,definition ,trækonstruktioner ,Finland ,byggeproces ,totaløkonomi ,træbyggeri ,anvendelse ,bæredygtighed ,bygningsfysik ,træarter ,barriere ,Sverige ,Østrig ,livscyklusvurdering ,CO2 ,Træ ,deponi ,spørgeskemaundersøgelse ,eksempler ,potentiale - Abstract
Rapporten ’Anvendelse af træ i byggeriet – Potentialer og barrierer’ samler eksisterende viden om fordele og ulemper ved træbyggeri, og gør status for omfanget af træbyggeri i Danmark.Spørgsmålet om anvendelse af træ i byggeriet belyses gennem en kvalitativ spørgeskemaundersøgelse, tre dialogmøder og kvalitative interviews med udvalgte nøglepersoner. Det er primært personer med erfaring fra byggebranchen; arkitekter, ingeniører, konstruktører, håndværkere, entreprenører, bygherrer og studerende, der har deltaget i spørgeskemaundersøgelsen og i dialogmøderne.Der er lavet en definition af træbyggeri, der præsenteres 8 eksisterende eksempler på træbyggeri i Danmark, der oplistes forskellige træarter og det gennemgås,hvordan Sverige, Norge, Finland, Østrig, Tyskland og Canada har forsøgt at øge brugen af træ i byggeriet gennem tiltag, som er beskrevet.Ud fra en livscyklusanalyse (LCA) er det vurderet, hvor meget CO2 Danmark kan spare ved at omlægge eksempelvis 10 % af konventionelt byggeri til træbyggeri om året frem til 2030.
- Published
- 2020
7. Luftudveksling mellem bolig og tagrum:PFT-målinger i 30 huse
- Author
-
Hansen, Tessa Kvist and Peuhkuri, Ruut Hannele
- Subjects
skimmelsvampe ,etageadskillelse ,ventilation ,luftkvalitet ,Indeklima - Abstract
Denne rapport beskriver resultaterne fra forskningsprojektet: Luftudveksling mellem bolig og tagrum. I projektet blev det undersøgt, i hvilket omfang der sker udveksling af luft mellem bolig og uudnyttede tagrum. Målet var på sigt at kunne vurdere, hvilken betydning mulig skimmelsvamp i et tagrum har for eksponeringen i den underliggende bolig samt at kunne vurdere fugtoverførslen fra boligen til uopvarmede tagrum.Luftudvekslingen mellem boliger og udnyttede uopvarmede tagrum blev undersøgt ved en passiv sporgasmetode. Metoden blev anvendt ved placering af to typer sporgasser i hver sin zone, hhv. bolig og tagrum. På baggrund af målte koncentrationsniveauer i de respektive zoner, samt beregnede emissionsrater baseret på temperaturmålinger, kunne udvekslingen mellem zonerne bestemmes, foruden luftskifterne i de to zoner. Der indgik 30 huse i undersøgelsen, og målingerne blev foretaget i to perioder for hvert hus; hhv. en kold og en varm periode. De 30 huse fordelte sig på byggeår fra 1920’erne til 2010’erne, et enkelt hus var dog fra 1719. Der var 19 huse med dampspærre i loftet og 11 huse uden. Derudover blev to typer af tagkonstruktioner undersøgt, men fordelingen var ikke ligelig (25-5). Det samme gælder huse med/uden mekanisk ventilation (6-24) og fordelingen mellem huse med mineraluld og cellulosebaseret loftisolering (27-3). Alle husene var placeret på Sjælland. Der blev desuden målt temperatur og relativ fugtighed i både boliger og tagrum samt målt udeklima.Undersøgelsen viste, at der forekom luftudveksling mellem bolig og uudnyttet, uopvarmet tagrum i begge retninger i både varme og kolde perioder. Dette gjorde sig gældende uanset, om der var en dampspærre eller ej. Som gennemsnitsbetragtning blev det fundet, at den opadgående luftoverføring var større end den nedadgående luftoverføring.På baggrund af de målte resultater, kunne der ikke konstateres en sammenhæng mellem udeluftskifte i tagrummet og absolut fugtindhold. Der kunne dog etableres en sammenhæng mellem den opadgående luftoverføring og fugttilskuddet fra boligen til tagrummet – jo højere opadrettet luftoverføring des mindre fugttilskud, dvs. forskel mellem fugtindhold i tagrummet i forhold til fugtindhold i boligen.Luftskifterne i boligerne blev målt til relativt lave værdier i forhold til bygningsreglementets krav om grundluftskifte på 0,30 l/s pr. m² opvarmet etageareal, hvilket tilnærmelsesvis svarer til 0,5h-1. Ingen af de undersøgte boliger levede op til kravet i vinterperioden, og kun fire boliger levede op til kravet i sommerperioden. Målingerne af luftskifterne i tagrummene viste en stor variation. Der blev konstateret synlig skimmel i tagrummene i tre af de undersøgte huse. Alle disse tagrum blev målt til at have relativt lave luftskifter i tagrummene.
- Published
- 2020
8. Written guidelines for decision making concerning the possible use of internal insulation in historic buildings
- Author
-
Freimanis, Ritvars, Blumberga, Dagnija, Veidenbergs, Ivars, Hansen, Tessa Kvist, Du, Guangli, Stöcker, Eric, Sontag, Heike, Freudenberg, Peggy, Janssen, Hans, Roels, Staf, di Giuseppe, Elisa, D'Orazio, Marco, Gianangeli, Andrea, Maracchini, Gianluca, Quagliarini, Enriro, Møller, Eva B., Capener, Carl-Magnus, Lång, Lukas, Johansson, Pernilla, Lasvaux, Sebastien, Giorgi, Morgane, Favre, Didier, Padey, Pierryves, Wagner, Guy, Blumberga, Andra, and de Place Hansen, Ernst Jan
- Subjects
Insulation systems ,Energy saving potential ,Guidelines ,Visual assessment ,Decision making - Abstract
This report is one of five deliverables related to WP6 ‘Development and evaluation of guidelines and web-based preliminary assessment tool‘. The prime objective of WP6 is to develop and to assess written and web-based guidelines and a web tool (including a feasibility study of possible input and output data) for renovation of historic buildings with internal insulation. This deliverable contains the written guidelines, referring to Task 6.1, consisting of a guideline for setting the goal of applying internal insulation (Section 3), a guideline for deciding whether a building is suitable for internal insulation (Section 4), a guideline for selecting an internal insulation system (Section 5) and a guideline for evaluating the energy saving potential and the environmental impact (Section6). The written guidelines are also made accessible through a web-site, described in deliverable D6.3.
- Published
- 2020
9. Robust Internal Thermal Insulation of Historic Buildings - Impact of water repellent agents on hygric properties of porous building materials
- Author
-
Janssen, Hans, Deckers, Daan, Vereecken, Evy, Feng, Chi, Soulios, Vasilis, Vanek, Angela, and Hansen, Tessa Kvist
- Subjects
lime mortar ,ceramic brick ,hygric property measurements ,hydrophobization ,water repellent agents ,case studies ,impregnation depth - Abstract
The insight that hydrophobization should be regarded as a possible element in the spectrum of internal insulation solutions triggered the midway introduction of RIBuild’s Task 2.4 ‘Impact of water repellent agents on hygric material properties’ and this deliverable reports the findings of that task. While giving much new knowledge and insights in regard to water repellent agents and hydrophobization, it also reveals that the results and outcomes show significant limitations and incongruences still, and that much more work thus is needed before hydrophobization can be reliably considered as part of the solution spectrum for moisture damages possibly resulting from application of internal insulation. Therefore, the findings of Task 2.4 have not resulted in adopting hydrophobization in the simulation campaign for the webtool of RIBuild’s WP6. ispartof: pages:1-159 status: Published online
- Published
- 2020
10. Materialeegenskaber:test af polyethylenmembraners egenskaber før og efter accelereret ældning
- Author
-
Rasmussen, Torben Valdbjørn, Hansen, Tessa Kvist, Nielsen, Jens Kromann, Steenstrup, Frederik R., Ottosen, Lisbeth M., Petersen, Louise Green, Hansen, Morten Hjorslev, and Shashoua, Yvonne
- Subjects
dampspærre ,prøvning ,ren PE ,levetid ,kemisk ,membran ,regenerat ,klimaskærm ,egenskaber ,Polyethylen ,materialeegenskaber ,mekanisk ,bæredygtighed ,genbrugsplast ,accelereret ældning - Abstract
I forskningsrapporten – Materialeegenskaber, test af polyethylenmembraners egenskaber før og efter accelereret ældning – undersøges levetiden for dampspærre produceret af polyethylen (PE). Undersøgelsen omfatter dampspærre af ren PE og dampspærre produceret af regenereret PE samt kombinationer af ren og regenereret PE.Der undersøges 9 forskellige dampspærrer, tapede samlinger tilhørende de enkelte dampspærresystemer og samlinger klæbet med bånd af butyl.Tidligere var det almindeligt, at dampspærre var fremstillet af ren PE, men i dag kan man finde et stigende antal dampspærrer, som indeholder regenereret PE, eller en blanding af regenereret PE og ren PE, i handelen. Som en del af den øgede interesse for at fremme bæredygtighed i byggeriet, er det forventeligt, at en stigende andel af dampspærre fremstillet af regenereret PE eller en blanding af ren og regenereret PE, fremadrettet vil blive mere efterspurgte.Undersøgelsen omfatter blandt andet de udvalgte dampspærreres vanddampdiffusionsmodstand, rivestyrke, fladevægt og overfladespænding, og emnerne er undersøgt før og efter accelereret ældning. Accelereret ældning er udført i klimakammer. Ud fra ældningen er dampspærrerenes levetid bestemt.
- Published
- 2020
11. SBI 2020:06: Materialeegenskaber:Test af polyethylenmembraners egenskaber før og efter accelereret ældning
- Author
-
Rasmussen, Torben Valdbjørn, Hansen, Tessa Kvist, Nielsen, Jens Kromann, Steenstrup, Frederik R., Ottosen, Lisbeth M., Petersen, Louise Green, Hansen, Morten Hjorslev, and Shashoua, Yvonne
- Abstract
I forskningsrapporten – Materialeegenskaber, test af polyethylenmembraners egenskaber før og efter accelereret ældning – undersøges levetiden for dampspærre produceret af polyethylen (PE). Undersøgelsen omfatter dampspærre af ren PE og dampspærre produceret af regenereret PE samt kombinationer af ren og regenereret PE.Der undersøges 9 forskellige dampspærrer, tapede samlinger tilhørende de enkelte dampspærresystemer og samlinger klæbet med bånd af butyl.Tidligere var det almindeligt, at dampspærre var fremstillet af ren PE, men i dag kan man finde et stigende antal dampspærrer, som indeholder regenereret PE, eller en blanding af regenereret PE og ren PE, i handelen. Som en del af den øgede interesse for at fremme bæredygtighed i byggeriet, er det forventeligt, at en stigende andel af dampspærre fremstillet af regenereret PE eller en blanding af ren og regenereret PE, fremadrettet vil blive mere efterspurgte.Undersøgelsen omfatter blandt andet de udvalgte dampspærreres vanddampdiffusionsmodstand, rivestyrke, fladevægt og overfladespænding, og emnerne er undersøgt før og efter accelereret ældning. Accelereret ældning er udført i klimakammer. Ud fra ældningen er dampspærrerenes levetid bestemt.
- Published
- 2020
12. Written guidelines for decision making concerning the possible use of internal insulation in historic buildings
- Author
-
Blumberga, Andra, Freimanis, Ritvars, Blumberga, Dagnija, Veidenbergs, Ivars, Hansen, Ernst Jan De Place, Hansen, Tessa Kvist, Du, Guangli, Stöcker, Eric, Sontag, Heike, Freudenberg, Peggy, Janssen, Hans, Roels, Staf, di Giuseppe, Elisa, D'Orazio, Marco, Gianangeli, Andrea, Maracchini, Gianluca, Quagliarini, Enriro, Møller, Eva B., Capener, Carl-Magnus, Lång, Lukas, Johansson, Pernilla, Lasvaux, Sebastien, Giorgi, Morgane, Favre, Didier, Padey, Pierryves, and Wagner, Guy
- Subjects
Insulation systems ,Energy saving potential ,Guidelines ,Visual assessment ,Decision making - Abstract
This report is one of five deliverables related to WP6 ‘Development and evaluation of guidelines and web-based preliminary assessment tool‘. The prime objective of WP6 is to develop and to assess written and web-based guidelines and a web tool (including a feasibility study of possible input and output data) for renovation of historic buildings with internal insulation. This deliverable contains the written guidelines, referring to Task 6.1, consisting of a guideline for setting the goal of applying internal insulation (Section 3), a guideline for deciding whether a building is suitable for internal insulation (Section 4), a guideline for selecting an internal insulation system (Section 5) and a guideline for evaluating the energy saving potential and the environmental impact (Section 6). The written guidelines are also made accessible through a web-site, described in deliverable D6.3.
- Published
- 2020
13. Monitored conditions in wooden wall plates in relation to mold and wood decaying fungi
- Author
-
Hansen, Tessa Kvist, Jensen, Nickolaj Feldt, Møller, Eva, Hansen, Ernst Jan De Place, and Peuhkuri, Ruut Hannele
- Abstract
In historic masonry buildings, wood can be embedded in the walls as storey partition beams, or as supportive wall plates. Half-timbered masonry constructions, or wooden frames, e.g. combined with internal insulation, are other examples of wooden elements. Wood decaying fungi can cause serious damage to wood, which may lose mass and strength, ultimately yielding the risk of collapse. In addition, some fungal species may even be hazardous for occupants. All wood decaying fungi depend on favorable moisture and temperature conditions, although the threshold conditions may vary with various fungal species and types, and state of the wood. To predict the risk of occurrence of wood rot, several models have been developed, however most of these are based on a limited number of experiments, or very specific cases. For these reasons, the applicability of the models to other scenarios (fungal species, wood species) may not be appropriate. Furthermore, another failure mode for wood and moisture, is mold growth, which is initiated at lower moisture levels. An indication of risk of mold growth would indicate problems or risks before the initiation of wood rot. Mold growth does not deteriorate the wood, but is usually equally undesired due to health concerns of occupants. For this reason, there might be places where some mold growth would be acceptable, e.g. embedded beam ends if there is no transfer of air from the moldy area to the indoor air. Therefore, risk of rot could be important. The paper investigates models for mass loss due to wood decay and mold growth based on exposure time to favorable hygrothermal conditions. The investigation is based on inspection of wood samples (wall plates) from a full-scale experimental setup of masonry with embedded wood and monitored conditions, to which the prediction models will be applied. Monitored hygrothermal conditions were implemented in mold and wood decay models, and samples were removed from the test setup. The implemented models yielded high mold index and mass loss, whereas neither mold nor decay was observed in the physical samples. Results indicate that the implemented models, in these cases appear to overestimate the risks of mold and rot in the supportive lath behind the insulation.
- Published
- 2020
14. Robust Internal Thermal Insulation of Historic Buildings - Threshold values for failure, linked to types of building structures and failure modes
- Author
-
Johansson, Pernilla, Lång, Lukas, Capener, Carl-Magnus, Møller, Eva, Quagliarini, Enrico, D’Orazio, Marco, Gianangel, Andrea, Janssen, Hans, Feng, Chi, Langmans, Jelle, Jensen, Nickolaj Feldt, de Place Hansen, Ernst Jan, Peuhkuri, Ruut, and Hansen, Tessa Kvist
- Subjects
mould ,algae ,laboratory testing ,threshold values ,frost ,fungi ,rot ,predictive models ,cyanobacteria ,failure modes - Abstract
This report comprises a study of material threshold values, failure modes and related failure prediction models to enable an evaluation of adding internal insulation in historic brick buildings. Threshold values and prediction models have been investigated both within literature and through laboratory study, by for instance comparing prediction models to real field results and by testing threshold values in laboratory. The aim of this report is to find threshold values and suitable and reliable prediction models to be included in the decision guidelines and the web tool, which are the final outcomes of the RIBuild project. Failure modes included in the report are mould growth on building materials, rot and wood decay, frost damage and discoloration of facades. ispartof: pages:1-155 status: Published online
- Published
- 2019
15. Retrofit of Masonry in Historic Buildings:Role of Climatic Loads and Material Parameters
- Author
-
Hansen, Tessa Kvist, Peuhkuri, Ruut Hannele, and Bjarløv, Søren Peter
- Abstract
Historical buildings represent cultural, historic and aesthetic value, whether preservation worthy or not. For this reason, the concept of internal insulation has been introduced as a possible energy retrofitting measure for such buildings. The application of the thermal insulation on the interior side of the wall reduces the heating energy consumption and improves the thermal comfort. But it also changes the hygrothermal conditions of that wall reducing the drying potential and leaving the original wall colder and damper when compared to pre-retrofitting. This may lead to undesired consequences like interstitial condensation, mold growth, wood rot and the general deterioration of the façade materials and components. The prediction of the hygrothermal performance of internal insulation solutions plays therefore an important role when designing successful retrofit measures. External loads, e.g. wind driven rain (WDR) and solar radiation, may vary largely depending the location and orientation and have a significant impact especially on historic buildings with porous masonry walls. This paper presents a simulation study for assessment of the hygrothermal performance of internally insulated historic masonryunder given conditions. A monitored case study made up the basis for this study that primarily focuses on the influence of orientation, indoor climate, façade color and brick type with regard to WDR, investigated through dynamic hygrothermal simulations. The results show that high loads from WDR inevitably increased the moisture content of the wall, but also certain material parameters and orientation, including solar radiation in combination with WDR play a role. Historical buildings represent cultural, historic and aesthetic value, whether preservation worthy or not. For this reason, the concept of internal insulation has been introduced as a possible energy retrofitting measure for such buildings. The application of the thermal insulation on the interior side of the wall reduces the heating energy consumption and improves the thermal comfort. But it also changes the hygrothermal conditions of that wall reducing the drying potential and leaving the original wall colder and damper when compared to pre-retrofitting. This may lead to undesired consequences like interstitial condensation, mold growth, wood rot and the general deterioration of the façade materials and components. The prediction of the hygrothermal performance of internal insulation solutions plays therefore an important role when designing successful retrofit measures. External loads, e.g. wind driven rain (WDR) and solar radiation, may vary largely depending the location and orientation and have a significant impact especially on historic buildings with porous masonry walls. This paper presents a simulation study for assessment of the hygrothermal performance of internally insulated historic masonryunder given conditions. A monitored case study made up the basis for this study that primarily focuses on the influence of orientation, indoor climate, façade color and brick type with regard to WDR, investigated through dynamic hygrothermal simulations. The results show that high loads from WDR inevitably increased the moisture content of the wall, but also certain material parameters and orientation, including solar radiation in combination with WDR play a role.
- Published
- 2019
16. Threshold values for failure, linked to types of building structures and failure modes
- Author
-
Johansson, Pernilla, Lång, Lukas, Capener, Carl-Magnus, Møller, Eva B., Quagliarini, Enrico, D'Orazio, Marco, Gianangeli, Andrea, Janssen, Hans, Feng, Chi, Langmans, Jelle, Feldt Jensen, Nickolaj, de Place Hansen, Ernst Jan, Peuhkuri, Ruut Hannele, and Hansen, Tessa Kvist
- Abstract
This report comprises a study of material threshold values, failure modes and related failure prediction models to enable an evaluation of adding internal insulation in historic brick buildings. Threshold values and prediction models have been investigated both within literature and through laboratory study, by for instance comparing prediction models to real field results and by testing threshold values in laboratory. The aim of this report is to find threshold values and suitable and reliable prediction models to be included in the decision guidelines and the web tool, which are the final outcomes of the RIBuild project. Failure modes included in the report are mould growth on building materials, rot and wood decay, frost damage and discoloration of facades. This report comprises a study of material threshold values, failure modes and related failure prediction models to enable an evaluation of adding internal insulation in historic brick buildings. Threshold values and prediction models have been investigated both within literature and through laboratory study, by for instance comparing prediction models to real field results and by testing threshold values in laboratory. The aim of this report is to find threshold values and suitable and reliable prediction models to be included in the decision guidelines and the web tool, which are the final outcomes of the RIBuild project. Failure modes included in the report are mould growth on building materials, rot and wood decay, frost damage and discoloration of facades.
- Published
- 2019
17. RIBuild Deliverable no. D2.2 – Threshold values for failure, linked to types of building structures and failure modes
- Author
-
Johansson, Pernilla, Lång, Lukas, Capener, Carl-Magnus, Møller, Eva B., Quagliarini, Enrico, D’Orazio, Marco, Gianangeli, Andrea, Janssen, Hans, Feng, Chi, Langmans, Jelle, Jensen, Nickolaj Feldt, de Place Hansen, Ernst Jan, Peuhkuri, Ruut Hannele, and Hansen, Tessa Kvist
- Subjects
algae ,laboratory testing ,mold ,threshold values ,frost ,fungi ,rot ,predictive models ,cyanobacteria ,failure modes - Abstract
This report comprises a study of material threshold values, failure modes and related failureprediction models to enable an evaluation of adding internal insulation in historic brick buildings.Threshold values and prediction models have been investigated both within literature and throughlaboratory study, by for instance comparing prediction models to real field results and by testingthreshold values in laboratory. The aim of this report is to find threshold values and suitable andreliable prediction models to be included in the decision guidelines and the web tool, which are thefinal outcomes of the RIBuild project. Failure modes included in the report are mould growth onbuilding materials, rot and wood decay, frost damage and discoloration of facades.
- Published
- 2019
18. 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
- Author
-
Hansen, Tessa Kvist, primary, Bjarløv, Søren Peter, additional, and Peuhkuri, Ruut, additional
- Published
- 2019
- Full Text
- View/download PDF
19. Energy Efficient Comfort in Older Apartment Blocks: Results and Experience
- Author
-
Harrestrup, Maria, Hansen, Tessa Kvist, Haferbier, Rune, Lange, Jørgen, Pedersen, Leif Rønby, and Karkov, Rasmus
- Published
- 2016
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.