What is the difference between pir and pur




















Toggle navigation. Please enable JavaScript in your browser to complete this form. Search Search. Subscribe to Our Newsletter. Stay Updated! Learn secrets on how to save time and your money in the refrigeration business. The foam is able to reach small spaces to create an air-tight seal. It is generally less expensive than other materials, making it ideal for renovations.

PIR polyisocyanurate , typically cut into boards, can be used in insulated metal panels, wall cavities and as insulated plasterboard. PIR has such a high thermal performance , it requires only half the thickness of other mineral-based insulation products. The most notable differentiating factor for PIR is its flame and smoke resistance.

PIR slows the spread of flames and reduces the smoke emitted from the fire when compared to PUR products. With 11 percent better thermal performance than PIR and up to 60 percent improvement over PUR, it is unrivaled in the market. Convective heat transfer. Bond strength MPA. We can produce both PUR and PIR insulated panels,there are also roof and wall SIP panels for your choices,our sales team can offer you professional advice for which one will be better choice for your project.

Industrial blog. How to avoid insulated metal panels IMP installation mistakes? Prefabricated villa Prefabricated house steel structure building. Although nothing is absolute and will depend a lot on the ultimate purpose of the building, PIR insulation is commonly known as a better quality alternative than PUR. The U-value by definition is inversely proportional to the R-value, in other words, the lower it is, it indicates that there is a lower transmittance, thus proving that the material has better insulating capacity.

Similar to the U-value, the lower the number, the better the thermal performance of the sandwich panel core. Thus, polyisocyanurate foam tends to have substantially lower K values than polyurethane. In general, it can be said that since the R, U and K values of the PIR insulation panels are better than those of PUR, nevertheless, when evaluating which material to prefer, the use of the building should not be neglected.

For example, if insulated metal panels are to be used for food storage cold , then resistance, transmittance, and thermal conductivity will be a highly important aspect of decision making and the PIR core foam is likely to be more suitable if a relatively thin coating is required.



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