The aim of the thesis is to assess the influence of the exterior finish works on the total price of a house. The total price of the house consists of the interior price valuated by the cost method and the price of the exterior finishes which were valuated with the help of two methods: the cost method and the simplified method based on the Property Valuation Act. The valuation also covers several periods of time: a new building and 11-, 25-, 50-, 75- and 100-years-old buildings. The thesis focuses on the lifetime of individual parts of the exterior finishes—especially the time after which it is necessary to replace or reconstruct a part. A significant focus was placed on the percents listed in the Act and their correspondence to the actual state. The thesis also deals with the various methods of valuation and their appropriateness in each case. It also mentions the influence of other factors on the price of an estate (the use of different exterior finishes, or a selection of a building location) but these factors were not examined in detail.

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”Durable water repellents (DWR) är textilimpregneringar som bidrar med vattenavvisande egenskaper som håller länge på funktionella tyg. Tyvärr är dessa hydrofobiska ytbehandlingar vanligtvis en källa till skadliga och persistenta kemikalier och de även är producerade från fossilbaserade resurser. Eftersom medvetenheten kring de här problemen har ökat, har innovativa, miljövänliga och biologiskt nedbrytbara alternativ tagits fram. Hittills finns dock inga produkter gjorda av 100% förnybara råvaror. I ett försök att utveckla en biobaserad, icke-giftig DWR som aktiveras under milda förhållanden, lades fokus på utveckling av en lagringsstabil sprayimpregneringsprodukt för hemmabruk. Vid formulering av emulsionerna/dispersionerna utvärderades en stor mängd biobaserade och kommersiellt tillgängliga hydrofobiska och amfifila molekyler med avseende den vattenavvisande effekt som de bidrog med på den behandlade textilen. Samtidigt bedömdes de producerade formuleringarna noggrant för att skapa förståelse om effekterna från ingredienserna och deras relation till produktens stabilitet. De kandidatprodukter som valdes ut och undersöktes vidare hade lovande vattenavvisande egenskaper och visade rimlig hållbarhetstid på åtminstone en månad i 40 °C. Standardiserade sprayscores på 3 (där 1 är sämst och 5 är bäst) nåddes efter 24 timmars hängtorkning i rumstemperatur. Dessutom uppnåddes sprayscore på 5 efter en kort, icke-industriell torktumling på låg temperatur och den behölls efter minst tio tvättar på syntetiska textiler. Utvalda produkter påverkade inte märkbart tygets andningsförmåga och majoriteten hade ingen influens på textilens mjukhet och färg. Förutom uppskalningsexperiment och partikelstorleksmätningar, granskades resultat med en tillämpningsstudie av formuleringarna på femton olika tygtyper. Produkternas effekter på utseende och känsla dokumenterades för de olika textilierna. Egenskaper som kontaktvinklar, sprayscores och tvättbeständighet bestämdes och jämfördes med en kommersiellt tillgänglig produkt. / Durable water repellents (DWR) are textile finishes that provide long-lasting water repelling properties to functional garments. However, these hydrophobic finishes are commonly a source of polluting and persistent chemicals and are produced from fossil resources. As a result of increasing awareness, innovation towards environmentally friendly and biodegradable alternatives has progressed, yet no 100% renewable sourced products are available. In an attempt to create a bio-based, non-toxic DWR, that is curable under mild conditions, focus was put on the development of a shelf stable spray impregnation product intended for consumer use. By formulating dispersion/emulsion systems, a wide variety of commercially available, renewable sourced amphiphilic and hydrophobic molecules were evaluated on their effect on the water repelling performance of treated textile fabrics. Simultaneously, the produced systems were assessed carefully to create understanding on the effect of substances and their corresponding ratios on the stability. Promising candidate products that were selected for further investigation showed reasonable stability for 1 month at 40 °C. Industrial standard spray ratings of 3 (where 1 is worst and 5 is best) after hang drying at room temperature could be reached within 24 hours. On top of that, spray ratings of 5 could be reached after short time, non-industrial tumble drying at low temperatures, which could even be retained for at least ten laundering cycles on synthetic textiles. The selected finishes did not have a measurable effect on the breathability of the treated fabrics, while the majority did not considerably affect the hands-feeling or colour of the textiles. Besides several scaling up experiments and particle size measurements, extrapolation of the findings was carried out by testing the developed formulations on fifteen different types of textiles. Effects on appearance and feel were documented, additionally, contact angle, spray score, and wash durability were determined and compared with a commercially available product.

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Influence of atmospheric and chemical environments on metal products leads usually to the corrosion damage. This master´s thesis deals with way to protect metals from corrosion, especially by polysiloxane coatings in combination with coatings containing zinc. Corrosion resistance of created coatings systems is tested by laboratory accelerated tests in corrosion chamber, where the natural atmospheric conditions are simulated. Chemical resistance in selected environments is verified by drop test. Quality characteristics coatings – thickness, adhesion to the underlying material, hardness and stability of the coating colour and gloss are evaluated too.