Sökning: "moisture related problems"

Visar resultat 1 - 5 av 29 avhandlingar innehållade orden moisture related problems.

  1. 1. Building Physics Tools: Needs, Use and the Lack of Use in the Building Process. Modelling Non-Isothermal Moisture Flow and Frost Penetration

    Författare :Stephen Burke; Avdelningen för Byggnadsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; isothermal; costs; building physics tools; moisture damages; learning loop; experience; causal loop diagrams; non-isothermal; moisture transport;

    Sammanfattning : Despite advances in material science, computers and building technology, building failures related to building physics continue to occur. These failures range from a building not meeting its energy use target to a building causing people to become ill from exposure to various chemicals or biological organisms. LÄS MER

  3. 2. Indoor Environmental Factors and Chronic Diseases in Swedish Pre-School Children : Risk factors and methodological issues investigated in a longitudinal study on airway diseases and autism spectrum disorder

    Författare :Malin Larsson; Carl-Gustaf Bornehag; Staffan Janson; Gunilla Wieslander; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; asthma; rhinitis; eczema; autism spectrum disorder; indoor environment; moisture related problems; chemical exposure; methodological issues; Public health science; Folkhälsovetenskap; Public Health Science; Folkhälsovetenskap;

    Sammanfattning : Asthma and allergies have increased considerably during the past 40-50 years. Along with this increase, a heightened awareness regarding different neuro-developmental disorders such as autism spectrum disorder has occurred and it has been proposed that such disorders are also on the increase. LÄS MER

  4. 3. Norway spruce heartwood : properties related to outdoor use

    Författare :Karin Sandberg; Lars-Olof Nilsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

    Sammanfattning : Degradation of wood is a complex problem dependent on many parameters, but especially the presence of excessive amounts of water causes many problems.The objective of this work was to study the influence of various parameters on water absorption and desorption in Norway spruce (Picea abies (L.) Karst). LÄS MER

  5. 4. Condensation and frost formation in fibrous thermal-insulation materials

    Författare :Tomáš Vrána; Folke Björk; Ove Söderström; Kjartan Gudmundsson; Carsten Rode; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fibrous thermal insulation; Stone wool; Cellulose; MAterial properties; Moisture transport; Condensation; Frost formation; Exterior conditions; Interior conditions; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur; Construction materials; Konstruktionsmaterial;

    Sammanfattning : Heavily insulated constructions are at present being used to strike at the vast energy consumption in residential buildings and commercial alike. They introduce a high-thickness layer of thermal insulation in the building envelopes. LÄS MER

  7. 5. Indoor Environmental Factors and its Associations with Asthma and Allergy Among Swedish Pre-School Children

    Författare :Linda Hägerhed Engman; Avdelningen för Byggnadsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; epidemiology; Public health; children; validation; inspections; dampness; moisture problem; questionnaire; allergy; asthma; Folkhälsa; epidemiologi; health;

    Sammanfattning : It has been shown in a large number of scientific studies that living or working in a building with mould and moisture damage increases the risk for asthmatic and allergic symptoms. However, there is a need to establish more valid methods to obtain a more nuanced picture of the wide range of different types of moisture related problems. LÄS MER