ZEMCH 2015 - International Conference Proceedings | Page 736

Building materials in the efficient case are as follows (IES VE 2013): - Precast concrete walls finished with fiber-cement cladding, U-Value 0.1519 W/m2k - Triple Glazing with argon air gap, U-Value 1.4554 W/m2k - Precast concrete Roof system, U-Value 0.1404 W/m2k - Insulated ground Floor, U-Value1.3479 W/m2k Figure 20: Glazing system used for the efficient case (Eksalta Sustainable Retrofit 2013) Figure 21: Cooling peak loads calculations for the building in both cases (IES VE 2013) Readings here show a reduction in the total rooms’ sensible load for 34.67%, making a good amount of energy saving in case of changing the materials to make the best insulation. Figure 22: Air flow rates for the building in both cases (IES VE 2013) 734 ZEMCH 2015 | International Conference | Bari - Lecce, Italy