R-value (appinventor.ai_eu_pflaum.U_Wert_Rechner_english) on Google Play
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R-value (U-value) Application - now work out ceiling, floor or wall energy efficiency easily!With this calculator you can check out the effective R-value and U-value for a set of materials. This is used to work out the needed amount of insulating material to meet energy efficiency regulations for floors, ceilings or walls. Useful for a builder, architect, designer or home owner looking to improve energy efficiency and so to save money. Also useful for quickly comparing the energy efficiencies of different layers.You can select your material from a library for each layer. Proposed values can be changed freely too. With the thickness of the material the program calculates the R-value and U-value for your wall, ceiling or floor!