Advantages of PIR Sandwich Panels
Sandwich panels are a popular choice in the construction industry due to their high insulation properties, durability, and ease of installation. In recent years, PIR (polyisocyanurate) sandwich panels have gained immense popularity, thanks to their numerous advantages over other types of sandwich panels.
In this article, Solideck takes an in-depth look at the advantages of PIR sandwich panels and learns why it’s known as the cold storage of choice.
Excellent Insulation Properties
One of the main advantages of PIR sandwich panels is the high level of thermal insulation. PIR foam has a closed cell structure with a closure rate of more than 90%, making it an excellent insulating material with a low thermal conductivity, which means that it significantly reduces heat transfer, keeping the interior of the building warmer in winter and cooler in summer. The rigid core polyurethane foam in the center of PIR sandwich panels is generally composed of polyester polyol and high isocyanate. This unique composition results in low thermal conductivity and a high R-value, with a thermal conductivity of 0.021 (w/m.k) for PIR sandwich panels, making it an effective barrier against heat transfer.
Fire Resistance
Another significant advantage of PIR sandwich panels is their fire-resistant properties. Safety is a major issue in building construction, PIR is the use of polyester polyols instead of polyether polyols used in PUR, and isocyanate reaction to generate. During the period of excess isocyanate spontaneous reaction to generate a six-membered ring molecular structure, this structure can promote the combustion of coking into charcoal, to enhance the fire-resistant properties of the sandwich panel, can withstand temperatures of up to 400 ⁰ C. These advantages make PIR sandwich panels the preferred choice for a wide range of buildings, providing a safe and secure environment for occupants. PIR sandwich panels also have low smoke emissions, ensuring that in the event of a fire, smoke will not hinder evacuation efforts. In addition, it does not produce any toxic fumes in the event of a fire, making it a safer choice than other insulation materials.
Lightweight
Another advantage of PIR sandwich panels is their lightweight properties. PIR foam has a density of 2-3 pounds per cubic foot, making it one of the lightest insulation materials on the market. This feature makes PIR sandwich panels easy to handle and install, requiring less labor costs and minimal machinery. The lightweight nature of the panels also reduces the overall weight of the building, which is a significant benefit in earthquake-prone areas.
High Strength and Durability
PIR sandwich panels have excellent structural properties, making them suitable for building walls, roofs, and floors. PIR sandwich panels have 250-300 kPa， have a higher compressive strength , meaning that they can withstand higher loads and pressures without being deformed. This higher compressive strength of PIR panels makes them a suitable choice for buildings that require structural support, such as cold storage facilities and industrial buildings. PIR panels can also be used as roof panels in areas with heavy snow loads, as they can withstand the weight without deforming.
Moreover, PIR sandwich panels has a closed-cell structure, which means it is impermeable to water and does not absorb moisture. This is a significant advantage over other forms of polyurethane foam, as PIR sandwich panels retains its insulation properties even when exposed to moisture. This also prevents the growth of mold, mildew, and other harmful microorganisms, ensuring a healthy indoor environment.
In conclusion, PIR sandwich panels offer a myriad of advantages, making them a preferred choice in the building and construction industry. Their superior insulation properties, lightweight nature, fire-resistant, and durability make them a smart choice for construction projects of all types and sizes.