This paper explains typical knee wall construction and insulation in homes in Indiana and demonstrates the energy inefficiencies caused by such methods. Literature research gives examples of possible opportunities for changing the standard methods of knee wall construction and insulation. The methodology of the study is explained, as is energy intensity (EI) — the main evaluation tool used in this paper. EI allows a researcher to compare homes of different sizes in different locations. Overall, the study shows that homes whose knee walls have an air barrier backing use less energy than homes without knee walls. Additionally, as expected, homes with improperly constructed knee walls use the most energy. Finally, the paper contains recommendations about what methods might be used to change the standard practices involved in building and insulating knee walls. / Department of Urban Planning

Roofs are the single enclosure element common to artificial shelters constructed by all cultures in all climate regions. The hygrothermal performance of insulated, sloped, wood-framed roof assemblies has long been of interest to building scientists and building codes alike. Requirements for the ventilation of roof assemblies have been included in building codes for more than 50 years, however moisture problems still occur. Unvented roof assemblies have been suggested as an alternate and potentially superior solution. While unvented roofs have become relatively common in the warmer southern climates of North America, some technical issues remain unclear and the need exists for further study and demonstration of the hygrothermal performance of both ventilated and unvented roof assemblies in cold northern climates. This thesis seeks to address these issues through a review of existing literature, experience and industry practice, field investigation and measurement, analytical calculation and computer simulations.

Roofs are the single enclosure element common to artificial shelters constructed by all cultures in all climate regions. The hygrothermal performance of insulated, sloped, wood-framed roof assemblies has long been of interest to building scientists and building codes alike. Requirements for the ventilation of roof assemblies have been included in building codes for more than 50 years, however moisture problems still occur. Unvented roof assemblies have been suggested as an alternate and potentially superior solution. While unvented roofs have become relatively common in the warmer southern climates of North America, some technical issues remain unclear and the need exists for further study and demonstration of the hygrothermal performance of both ventilated and unvented roof assemblies in cold northern climates. This thesis seeks to address these issues through a review of existing literature, experience and industry practice, field investigation and measurement, analytical calculation and computer simulations.

Les artefacts en céramique ont une longue histoire et ont été récupérés dans presque toutes les régions du monde. La conservation n’est que rarement impactée par le milieu d’enfouissement. Donc, ils sont des matériaux idéaux pour comprendre l'histoire et la culture de homme. Les principales études archéologiques sur les céramiques anciennes concernent la provenance (datation, atelier, commerce), les matières premières (identification, origine), le processus de fabrication et l'utilisation (analyse des résidus de contenu). Mon travail porte plus précisément sur le processus de fabrication. Les principales étapes du processus de fabrication sont: la sélection des matières premières, la préparation, le façonnage, salle de bains, sur deux possibilités. Soit le vase est cuit avant l'étape de décoration, soit la décoration est appliquée sur le vase cru. Pour finir, l'ensemble est cuit. Mon objectif est d'obtenir des informations sur le procédé de fabrication en analysant la structure des céramiques anciennes, et en particulier, la structure des couches décoratives. La structure des céramiques anciennes est une structure complexe en couches avec des hétérogénéités à différentes échelles (mm à nm). Une céramique décorée est généralement composée d'une pâte et d'un revêtement, y compris de la décoration. Le revêtement peut contenir des natures différentes. L'épaisseur peut être variable de mm à nm. La couche décorative peut être une partie ou du tout la revêtement. La couche décorative peut être constitutive d'une phase vitrifiée amorphe et divers cristaux, tels que cristaux colorants, feldspath, quartz, etc., dont la taille varie de plusieurs microns à nanomètre. La description de cette structure nécessite l'analyse à haute résolution (nm) avec grande zone représentative (souvent plusieurs mm3). C’est difficile à réaliser. Dans mon travail, j'ai proposé une autre approche. L'approche est basée sur trois étapes. Premièrement, les analyses rapides (principalement microscopie optique) à faibles résolutions sont effectuées pour analyser et sélectionner la zone nécessitant une analyse à haute résolution. Ensuite, la zone sélectionnée est analysée à haute résolution par des techniques appropriées en tenant compte des informations recherchées. Troisièmement, on essaie de construire la structure de l'objet sur la base des données partielles, et d’en déduire le processus de fabrication. Je vais illustrer cette approche par trois exemples. La première concerne le pigment jaune de la terre sigillée marbrée romaine (chapitre III). Le second concerne le processus de cuisson des poteries attiques (chapitre III). Le troisième concerne les variations de couleur de la décoration bleue des porcelaines Qinghua (chapitre IV). / Ceramic artifacts have a long history and have been discovered worldwide. Their conservations are rarely impacted by the burial sites. Thus, they are ideal materials for understanding the human history and culture. The main archaeological studies concerning ancient ceramics contains provenance (dating, workshop, trade), raw materials (identification, origin), manufacturing process and utilization (analysis of content residues). For my work, I focused on the investigation of the manufacturing process. The main steps of fabrication process of ancient ceramics is composed of selection of raw materials, preparation (leaching, purification, body, glaze or slip, pigments), shaping (the plastic paste is shaped to the lathe or using the molds). Then, there are two possibilities: either the vase is fired before the decoration stage, or the decoration is applied to the raw vase. To finish, the whole is fired. My objective is to obtain information on the manufacturing process by analyzing the structure of ancient ceramics, and in particular the structure of decorative layers. The structure of ancient ceramics is complex with heterogeneities at different scales (mm to nm). A decorated ceramic generally is composed of a body and a coating, which including of the decoration. The coating could contain different natures. The thickness can be variable from mm to nm. The decorative layer can be a part of the coating or the whole coating. The decorative layer can be constituent of an amorphous vitrified phase and diverse crystals, such as colorant crystals, feldspar, quartz, etc., of which the size varies from several microns to nanometer. The description of such structure requires the analysis at high resolution (nm) with large representative zone (often, several mm3). It is difficult to realize. In my work, I proposed an alternative approach. The approach is based on three stages. Firstly, the rapid investigations (principally, optical microscopy) at low resolutions are effected to analyze and select the zone requiring analysis at high resolution. Secondly, the selected zone is analyzed at high resolution by appropriate techniques according to the information sought. Thirdly, I try to construct the structure of the object based on the partially data, and therefore deduce the manufacturing process. I will illustrate this approach through three examples. The first one concerns the yellow pigment of the Roman marbled terra sigillata (Chapter III). The second one is about the firing process of Attic potteries (Chapter III). The third one concerns the color variations of blue decoration of Qinghua porcelains (Chapter IV).

Kontinuerligt försvårade och mer krävande energikrav utlyst från den Europeiska unionen ochsvenska myndigheter har lett till en förändring av hur konstruktionsdetaljer och lösningar somanvänds inom nyproduktionssektorn utformas. Förändringarna har skapat en osäkerhet ur enfuktsäkerhetssynpunkt. Uttökade krav och förbättrad energiprestanda låter som ett problemfrittideal att sträva efter, dock har det i många fall lett till oförutsägbara konsekvenser i olika delar avbyggnaden. Två av de byggnadskomponenter som påverkats har varit ytterväggar och kallvindarsom har varit utformade utefter nya energikrav i nyproducerade hus.Den största utmaningen med utformningen av nyare kallvindar har varit balansgången mellanhög energiprestanda genom ökad isoleringstjocklek och fuktsäkerhet. Ökad isoleringstjocklekkombinerat med minimerad värmeförlust från ventilationsaggregat, inomhus och skorstenar harlett till, i överlag, kallare vindutrymmen med ökad risk för kondensation av fukt på kallare ytor ijämförelse med äldre byggnader. En lösning på detta har varit inkluderingen av uteluftsventileringi utformningen av vinden. Detta har lett till en återkommande fråga angående den optimalaluftomsättningen som krävs för utökad fuktsäkerhet, och i vissa fall, om uteluftsventilering ensär nödvändig.En annan stor utmaning har varit att säkerhetsställa fuktsäkerheten i väggar som är isolerade ien högre grad. Det finns en potentiell risk för kondens i kalla, yttre ytor om isoleringen utökas.Utöver detta så existerar det en hel del lösningar som har fungerat i det förflutna men som lärleda till ökad risk för skada när det kombineras med nya utformade lösningar som uppfyllerenergikraven.Detta arbete har fördjupat sig i dessa två komponenter, ytterväggar och kallvindar, för atthitta kritiska designval som har en stor påverkan på fuktsäkerheten. Arbetet har skett medsimuleringsprogrammen IDA ICE och WUFI 6. Båda programmen har kombinerats för attuttnyttja deras styrkor i simuleringsprocessen.Resultatet visar att en låg luftomsättning är optimal. Ingen ventilering alls lär leda till ökadfukthalt och ökad luftomsättning lär leda till en betydligt högre risk för mögel på råsponten ivinden. Placeringen av ett litet isoleringslager ovanpå råsponten leder till en minskad risk förmögel.Ytterväggar med tjockare isolering är mer benägna att skadas i jämförelse med mindre isoleradeväggar. Dock är det visat att en uttökad isoleringstjocklek även kan vara till fördel för att minskamögelrisken om isoleringslagret som uttökas är det yttersta isoleringslagret. Ett annat krav är attdet yttersta lagret bör ha dränerande egenskaper, exempelvis mineralull. Beräkningarna har ävenpåvisat ett antal andra faktorer som påverkar fuktsäkerheten i dess helhet.

Thesis process in the form of project documentation, including all requirements according to applicable regulations. It is a new residential building on plot No. 5049/24 in the cadastral Brno - Lisen. The land is located in a developed area close to existing housing. The land is sloping towards the east. On the north side there is parking for residential units in connection with the entrance to the underground parking garage on the east side. The building's facade is more rugged and achieves approximate dimensions of 20.0 x 30.0 m Residential house is designed as a three-storey building with a basement, with a flat roof. In the basement there is a garage and utility room, the floors are residential units intended for permanent living persons. It is a building with a combined carrying system Porotherm and reinforced concrete structures insulated mineral insulation.