Heat transfer involves the movement of heat energy between bodies at different temperatures. This process occurs through three main methods: conduction, convection, and radiation.

In regions with warm climates, especially during daylight hours in summer, external building components absorb heat from the sun, leading to rising temperatures inside the structure. Conversely, in winter, radiant heat escapes from the building, causing heat loss. Effectively managing this heat radiation can significantly enhance energy efficiency and reduce energy losses.

Challenges with Conventional Insulation

Conventional insulation materials, such as fiberglass, rock wool, and polyester wool, aim to block heat transfer primarily through conduction. These products trap air within thick layers, and their thermal resistance value (R value) increases with insulation thickness. However, these insulations face challenges. After installation, the thermal value decreases due to moisture accumulation between fibers, requiring careful handling and maintenance. The lifespan is relatively short, and vapor barriers are necessary for protection.

Introducing Polynum - Thermal Reflective Insulation

Polynum's reflective thermal insulation operates on a distinct principle, returning heat energy rather than storing it. Comprising thin layers of pure aluminum foil (with 97% radiation heat return) combined with trapped air, Polynum products enable optimal heat return in hot months and heat retention in cold seasons.

Key Features:

  • Thin product
  • Pure aluminum foils: Ensure 97% heat radiation directed outside during summer.
  • Low emissivity: Pure aluminum foil has only 3% emissivity, limiting heat penetration and maximizing heat reflection.
  • Reflectivity: Aluminum foil's ability to reflect 97% of infrared rays.
  • Thermal resistance value (R value): A common metric for insulation materials, indicating resistance to heat transfer.
  • Ease handling: The thermal insulation significantly simplifies the installation process, leading to substantial cost savings. Unlike traditional fibrous insulation, which often requires meticulous handling and protective measures, reflective insulation is lightweight and easy to maneuver. The simplicity of installation translates to reduced labor costs, as the material can be quickly and efficiently applied, even in challenging spaces. This streamlined installation process not only saves on immediate labor expenses but contributes to overall project cost-efficiency.

 

When using conventional insulation, such as – Mineral wool, rock wool, or polyester wool, the R value will depend on the final thickness of the selected insulation, the thermal resistance rate of the material will be calculated in the following configuration m²•ºC/W used in Europe or Btu*in/ (hr*ft²*°F) in the USA.

The higher the R value, the better the resistance of the insulation to heat transfer.

By understanding the science behind reflective thermal insulation, we pave the way for more efficient and sustainable solutions in managing temperature dynamics within structures.