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PIR PREMIER AND PUR CLASSIC SANDWICH PANELS
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PIR PREMIER AND PUR CLASSIC SANDWICH PANELS - 1

Energy Safe Technologies PIR PREMIER AND PUR CLASSIC SANDWICH PANELS Technical Catalog

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CHAPTER 1: GENERAL INFORMATION 1.1 HISTORY Sandwich panels are extensively used in the construction of prefabricated buildings, cold storages, deep freeze rooms, manufacturing facilities and offices, as well as for other purposes. During the COVID-19 pandemic, infection hospitals and pavilions are erected using this technology. With their high thermal insulation performance, sandwich panels reduce the costs of heating and conditioning. The energy savings, along with the fast speed of installation, is an important factor in their growing popularity. In 2005, the European Committee for...

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of gases is tens and hundreds times lower than that of solid materials. §1.4 WHAT IS THE DIFFERENCE BETWEEN PUR AND PIR PANELS? PU foams are: • Energy-saving - their thermal conductivity is as low as 0.020 W/m-K and reaches 0.018 W/m-K if advanced blowing agents are used. • Eco-friendly - PU foams are everywhere from the soles of your shoes to the wheels of your car or to the insulation of fuel tanks in spacecraft. In Russia, they are approved for use in residential construction, since the order of Ministry of Health no. 07/6 561 on 26 December 1986. • Healthy - they are used in the food...

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Bending stress at failure, kPa 330 Bending deflection at failure, mm 13.2 Water absorption after 24 h, % 1.6 Bond to faces at uniform separation, kPa This means that a lower density translates into more effective insulation, but such foams are rather fragile. The figures below show the empirical relationship between thermal conductivity and density of PU foams. Figure 4. Relationship between thermal conductivity and average cell size in PU foams AL Dimensional stability at +75 °C AB after 24 h, % AH Apparent core density, kg/m3 Compression stress at 10% deformation, kPa These data suggest...

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As of May 2019, PH Insulation had made more than 5 million square meters of sandwich panels with PIR Premier and over 5 thousand tons of polyol systems. Currently PH Insulation manufactures panels and doors with PU insulation for more than two thousand companies annually in 15 countries around the world. WHAT IS THE SECRET OF PIR PREMIER PANELS? PIR Premier blend is manufactured with attention to all the special features of Pu.Ma continuous lines (Italy) installed at PH Insulation. Immediate integration with further production processes makes the system unique. In order to guarantee the...

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in a controlled temperature. This, as well as all the previous stages, is very important for the correct shape of panels. Production lines are always assembled individually according to client’s requirements, so if you are told that a certain line is unique and customized, take such claims with a grain of salt. Image 2. A section of continuous line by Pu.Ma, Italy, installed in PH Insulation manufacturing facility. CHAPTER 2: PARAMETERS AND FEATURES OF SANDWICH PANELS 2.1 DIMENSIONAL TOLERANCES Table 6. Dimensional tolerances of sandwich panels Parameter Deviation from flatness for measured...

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Cover width Pitch of profile (roof panels) 2.0 mm for each meter length but not greater than 10 mm; 8.5 mm for each meter width for lightly profiled wall panels; 10 mm for each meter width for roof panels 2.2 THERMAL CONDUCTIVITY, THERMAL TRANSMISSION, AND THERMAL RESISTANCE OF PU PANELS Deviation from squareness 0.6% of the nominal cover width Thermal losses in buildings and other structures occur due to: 1. Transmission losses through floors, walls and ceilings; and 2. Ventilation losses as a consequence of permeable cladding (natural ventilation). Transmission losses can be reduced by...

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Table 8. Declared and design thermal conductivity of sandwich panels according to EN 14509-2008 Table 7. Thermal conductivity of the most popular materials Foam concrete Mineral wool Expanded polystyrene Urea formaldehyde foam Polyurethane foam (PUR/PIR) Design thermal conductivity* Main aging factor 90/90 λdeclared values for dry specimens at average temperature 10°C, after aging * Replacement of blowing agent by air Declared thermal conductivity Usually, the declared thermal conductivity of both PUR and PIR foams is in the range of 0.021–0.022 W/m·K. According to EN 14509-2005 standard,...

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Table 10. Heat Direction Table 12. Thermal transmittance of joints (fjoint) for steel faces Direction of heat flow Internal surface resistance (Rsi), m²·K/W External surface resistance (Rse) m²·K/W Additional thickness Δe is important for roof panels and depends on geometry and the height of profiles. Figure 6. Calculation of Δe for PH Insulation panels according to EN 14509-2008; b1 = 20 mm, b2 = 60 mm, h = 40 mm, p = 250 mm. Let’s calculate, for example, thermal transmittance of a PU wall panel (thickness = 100 mm, width = 1.185 mm, 0.5 mm metal faces): • external surface: Rse = 0.04...

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Table 14. Specific heat capacity of typical building materials Thermal resistance Water absorption after 24 h 96% relative humidity Light concrete Mineral wool Expanded clay blocks Water absorption after 24 h, full immersion, percent of 2,5% volume Sound insulation 25 dB Table 16. Main characteristics of PIR Premier roof panels by PH Insulation Core PIR Premier Let's compare the heat capacity of 100 mm concrete wall with that of a PUR panel of equal thickness (to simplify the task, we consider the panel to consist of a 100 mm core and 0.5 mm metal faces) 100 mm PUR sandwich panel C = 40 ■...

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Panel colors are classified into three groups based on their thermal energy absorption ratio, see Table 6. Light colors reflect sun's energy better and absorb less heat. In accordance with the European standard for sandwich panels with metal cladding EN 14509, the temperature T of the outer cladding has a maximum value typical for the summer period. This figure depends on the color and the light reflectance value of its surface. T-values are the minimum values for calculating thermal deformation of insulated panels. Intensely light colors T +55 °C Group II Light colors T Group III Dark...

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