Film with low heat conductivity, reduced density and low solar absorption

An application which comprises an element with a combination of a plastic support material and components incorporated into the plastic support material,

• the combination including:
• at least one of:
• a) inorganic and/or organic light fillers having a density of less than 0.5 g/cm3, the inorganic and/or organic light fillers being effective to reduce the density and heat conductivity of the plastic support material;
• and (b) gases selected from the group consisting of air, nitrogen, carbon dioxide, and noble gases, which form cavities in the plastic support material and reduce the density and heat conductivity of the plastic support material;
• and further including at least one of:
• c) dyes, which reflect with spectral selectivity in the wavelength range of visible light from 400 to 700 nm and have an average transparency of greater than 50% in the wavelength range of the near infrared from 700 to 1,000 nm;
• d) first pigments, which reflect with spectral selectivity in the wavelength range of visible light from 400 to 700 nm and have an average transparency of greater than 50% in the wavelength range from 700 to 1,000 nm;
• and
• e) second pigments, which reflect with spectral selectivity in the wavelength range of visible light from 400 to 700 nm and have an average reflection of greater
• than 50% in the wavelength range of the near infrared from 700 to 1,000 nm, and
• wherein the combination has the following properties:
• i) an average reflection in the wavelength range of visible light from 400 to 700
• nm less than 50%;
• ii) an average reflection in the wavelength range of near infrared from 700 to
• 1,000 nm greater than 50%;
• iii) a heat conductivity less than 0.4 (W/m·K);
• and
• iv) a bulk density that lies below 1.4 g/cm3.