PIR Insulation Products - Handling and Storage


Since polyisocyanurate (PIR) and polyurethane (PUR) insulation products are fully proof against moisture permeation, storing such products in humid atmosphere would not cause concerning defects. However, moisture in general, can improve biological and fungal pollution and cause common damage to facilities; therefore it is recommended to store insulation products in dry conditions.


PIR insulation products generate dusts, so adequate ventilation in storage room and workshop is required. It is recommended to clean the dust by vacuum, after every working day. In addition, the products should be handled softly and avoid impacts, to minimize the generated dusts.


The PIR and PUR structure consists of closed cells, so which the expanding agent is encapsulated within cells, reducing the thermal conductivity of the insulation products. However, producing insulations with 100% closed cell content is almost impossible and there is always a percentage of open cells in the structure. The percentage of closed cell content is normally reported in products catalog. Due to open cell content within the structure, exposing the products to direct sunlight and UV radiation would eventually cause escaping the expanding agent out of structure and degradation of the products so which the insulating properties of the product is reduced over time. Thus, it is highly recommended to keep the products unexposed to direct sunlight. It should be noted that degrading period of PIR and PUR insulating products are over 10 years. However, most of industrial complexes prefer scheduled overhauls in shorter time intervals - 5 years for instance. It is strongly recommended to se reflective jacketing, such as reflective metallic foils, for insulations installed in outdoors.


One of the most important points of handling, installation and storage of PIR and PUR insulation products, is avoidance of direct flame and ignition exposure. Most of PIR products are sensitive to flame and ignition and would burn with toxic fumes. Despite advancing technology has resulted in CFC and HCFC free products, the remaining evaporated gases still are hazardous. Therefore, it is strongly recommended to avoid direct exposure to flame, during installation and handling and in storage.


Direct exposure of PIR and PUR products to bare skin is not hazardous and has no any adverse health effects. However, due to dust, exposure to skin might cause itching. It is recommended to use gloves and mask, during machining, installation and handling of the products. If machining and cutting is conducted, it is good to wear protective glasses. For more information about hazards and safety data of PIR products, please download MSDS document.


During the handling, adequate precaution measures should be taken to avoid any physical or mechanical damages to the products. When storing the products, heavy or sharp objects should not be placed over the products.