Polyisocyanurate is a plastic compound used in roof insulation. Its rigid nature makes it a good choice for roofs. Its properties are very similar to those of PUR. It is relatively cheap compared to PIR. LOGICPIR is another PIR-based board that is a good substrate for roofing materials.
LOGICPIR is a board made of rigid PIR polyisocyanurate
LOGICPIR is a thermal insulation board that is made from rigid PIR polyisocyanurate. It is suitable for a wide range of applications including flat roofing systems. It is characterized by low thermal conductivity and compressive strength. In addition, it does not absorb water and maintains its properties over a long period of time.
The LOGICPIR insulation board has been studied in a wall structure. The material was compared with 200-mm aerated concrete block masonry, a ventilated air gap and external cladding. The thermal coupling coefficient was calculated between PIR with and without aluminum foil facings. Without facings, PIR performs poorly at preventing heat transfer at the corners.
LOGICPIR is available in several sizes and shapes. The thickness can range from 100 to 120 mm, and it is available in 1,44 m2 boards. In addition, LOGICPIR is available with either a fiberglass or aluminum facer. It is used for various types of construction and for individual use.
A study of the hygrothermal properties of PIR has demonstrated its durability and efficacy in different climates. The material’s thermal conductivity and thermal capacity are measured in the laboratory, and the results are extrapolated for various thicknesses. Additionally, the density of PIR is determined by the density of the material and its physical dimensions, as well as oven-dry mass measurements.
Polyisocyanurate is an advanced material that offers superior thermal insulation properties. It is one of the most widely used insulating materials in North America, and it meets strict environmental standards. It is a multi-component polymer that is both chemically inert and mechanically strong.
It is an ideal substrate for roofing materials
Polyisocyanurate (PIR) is a thermoset plastic used for rigid thermal insulation. It offers significant advantages over conventional insulation materials including minimal water absorption, durability and rotting resistance. It is also an environmentally friendly building material. For these reasons, PIR is considered an ideal substrate for roofing materials.
The high compressive strength of PIR makes it a suitable substrate for roofing materials. It also offers low thermal conductivity. Because it is made up of closed cells, it does not absorb water and keeps its properties stable for a long time. As a result, it is highly compatible with synthetic membranes.
PIR boards are available in different shapes. For example, slope shaped boards are used on flat roofs to create a sloping slope for water drainage. They also feature L-shaped edges that prevent thermal bridges. They are durable and have a 50-year service life. They are also characterized by their high compressive strength of 150 kPa, a key property of waterproofing materials. In addition, they have excellent resistance to operation loads and deformation. They also comply with the EN 826 class II dynamic load specification.
Polyisocyanurate roof insulation is expected to reach five billion board feet by 2005. This material is becoming a leading thermal insulation material in the commercial roofing market. Its improved environmental attributes make it an important component of sustainable construction. Despite its controversial past, the polyisocyanurate industry has survived and developed into a valuable roofing product.
In addition to its superior thermal resistance, PIR polyisocyanurate is now becoming more environmentally friendly. Its environmental properties have been recognized by the U.S. Green Building Council’s LEED rating system, developed in the early 1990s. It sets standards for sustainable design, energy, and materials. There are several categories of LEED rating, and PIR polyisocyanurate is eligible for three of them.
It is cheaper than PIR
Polyisocyanurate (PIR) is a synthetic polymer that offers better thermal resistance than XPS and EPS. PIR has a higher R value than XPS, and its U-value is inversely proportional to its R value. A lower U-value means less thermal transmittance, which in turn means better insulating capacity.
Polyisocyanurate is a thermoset plastic that is commonly used for rigid thermal insulation panels. It has an R-value of around 6.5 and is ideal for moderate temperatures. However, it performs poorly in very cold weather. It starts to break down at 15 degrees Celsius, and is not suitable for -20 degrees Celsius or below.
Polyisocyanurate is an advanced version of PU and is manufactured by reacting isocyanate with polyol. Its advantages include better fire and moisture resistance and superior thermal properties. It is available in both foam and insulation boards. Compared to PU, polyisocyanurate is more rigid.
PIR insulation has lower installation costs than cellular glass. In addition, it is easier to fabricate and uses fewer accessories. As a result, it is cheaper per board foot. It also requires less insulation per wall. This means you can install it in less time.
It has similar properties to PUR
Although PIR and PUR both have the same chemical formula, PIR is a new substance that was developed through years of research and development. This new substance has improved firmness, strength, thermal resistance, and dimensional stability compared to PUR. It is now used as a core material in sandwich panels and in floor insulation.
The reaction between MDI and polyol takes place at a higher temperature than the one used to manufacture PUR. In this reaction, MDI first reacts with itself, producing a stiff ring molecule and a tri-isocyanate compound. The remaining MDI then reacts with the polyol to produce a complex polymer. This polymer then foams under the influence of a blowing agent.
PIR is more expensive than PUR, but it is also more efficient. The lower U-value is associated with better insulating capacity. It is possible to create foams using a mixture of PIR and PUR. However, PIR has higher R-value than PUR.
The main differences between PIR and PUR are based on their molecular structures. PUR has a more balanced structure and an equal distribution of MDI and polyol. Because of this balanced structure, the polyol is highly insulating and possesses excellent insulation properties.
FTIR spectroscopy showed that PUR and PIR have similar thermal properties. The FTIR analysis showed characteristic absorption bands, indicating the presence of urethane groups and isocyanate rings. The spectral analysis also confirmed the presence of PIR structures.
While PIR and PUR are both known for their excellent thermal insulation qualities, PIR is a better choice for fire resistance applications. This is because PIR is thermoset, and the polyol in the mixture has a lower glass transition temperature than polyether polyol.
It is an environmentally friendly material
PIR polyisocyanurate is a thermoset plastic with a chemical composition that is similar to PUR. It has good thermal conductivity, is recyclable and lightweight. Its properties make it an environmentally friendly material for a variety of applications. It is also stronger than urethane and has excellent thermal and chemical stability. Its breakdown temperature is around 200 degC, whereas urethane starts breaking down at approximately 100 degC.
PIR is also a highly efficient insulator. Its lambda value is as low as 0.022 W/mK, meaning that it needs less space to achieve the same U-value as other insulation materials. This is particularly beneficial in multi-property developments where space is at a premium. Mineral wool, on the other hand, requires wider overall wall width and thicker insulation. Additionally, it requires wider window lintels and wall ties.
The chemical composition of PIR foams can be altered to enhance their properties. Its polyol content can be adjusted to increase its thermal stability and reduce its flammability. It can also be modified to produce isocyanurate rings. This modification can be used to produce PIR foams in a cost-effective manner.
PIR polyisocyanurate is a closed-cell rigid foam board insulation made of a variety of organic and inorganic materials. It is used for roof, wall, and specialty applications. It is one of the most popular and affordable types of insulation in North America. It is also an environmentally friendly material, having been cited by the U.S. Environmental Protection Agency.
PIR is an effective thermal insulation material for different types of roofs. Its properties make it a highly effective material for insulating flat roofs. It is a high-performance material that has a high level of durability. It has an excellent insulating capacity and low thermal conductivity. In addition, it has a 50-year service life.