The construction industry has a specialized vocabulary that often misses the true meaning of certain terms. In this case, we’re talking about the thermal insulation polyisocyanurate, a polymer composed of complex hydrocarbon chains that can be engineered from the first principles. To better understand this thermal insulator, we’ll discuss how it performs under varying thicknesses and facers.
LOGICPIR thermal insulation board
The LOGICPIR thermal insulation board is a rigid, polyisocyanurate thermal insulation board that is suitable for use with synthetic membranes and flat roofing systems. The material’s low thermal conductivity and low compressive strength allow it to be installed on a wide range of structures, including facades, floors, and roofs. In addition, it does not absorb water and maintains its parameters over a long period of time.
The LOGICPIR is also available as a panel for frame houses. These panels contain hundreds of small cells filled with a gas that does not burn. The LOGICPIR company does not disclose the substance inside the panels, but reassures the public that the material does not burn. Customers can order plates in various thicknesses from the company and select a particular material based on the needs of the project.
A significant manufacturer of effective thermal insulation materials, Technonikol produces 8 different types of PIR panels, based on polyurethane foam. Technonikol offers PIR-based insulation boards for walls, floors, balconies, baths, and pitched roofs. These boards come in a variety of thicknesses, so they can be used for many purposes.
The polyisocyanurate in the LOGICPIR thermal insulation board is highly adherent. Various covering materials are used to create the plates. Depending on the purpose, they can be used in a variety of construction fields. Various thicknesses are available, which allows customers to select the best-suited type of polyisocyanurate thermal insulation board for their needs.
LOGICPIR isolation plate
LOGICPIR is a rigid polyisocyanurate board that is used as an isolation layer under synthetic membranes. Its low thermal conductivity and high compressive strength make it a perfect choice for flat roofing systems. In addition, more than 95% of PIR is made up of closed cells, ensuring low water absorption and a stable set of parameters over time.
The structural components of PIR include a polyl, a blowing agent, and a fire retardant. These elements work together to provide greater stiffness and thermal resistance than comparable polyurethane materials. Polyisocyanurate is also much more chemically and thermally stable than polyurethane, which starts to degrade at 200 degrees Celsius. This means it can withstand greater temperatures and withstand more fires without deteriorating.
LOGICPIR insulation
LOGICPIR is a polyisocyanurate thermal insulation panel with many advantages. Its long service life makes it suitable for applications that require high levels of durability and resistance to fire. The insulation can last for 50 years or more and functions effectively in temperature ranges from -65 to +110 degC. Moreover, it does not absorb water or burn. Its low density reduces overall construction weight and transportation costs. Moreover, the 150 kPa compressive strength gives it high resistance to deformation due to operation load.
Polyisocyanurate insulation is a closed-cell rigid foam board made from various inorganic and organic materials. It is widely used for walls, roofs, and specialty applications, and has excellent thermal performance. In North America, PolyisoCYAN is one of the most widely used insulation products. Despite being a cost-effective insulation material, it also meets stringent environmental standards.
Polyisocyanurate is a complex polymer, similar to polyurethane, but more resistant to environmental factors. It is derived from methylene diphenyl diisocyanate, which partially transforms into a tri-isocyanurate chemical compound. Because of its rigid structure, polyisocyanurate has superior thermal and chemical resistance to polyurethane.
TechnoNikol is the largest manufacturer of thermal insulation materials and PIR plates. Both are available for roofs, balconies, and walls. Its pre-applied foams provide maximum strength. The cost of polyisocyanurate plates varies from 283 rubles per square meter to over $200 for each gram. They are eco-friendly and recyclable. They are also available in a wide range of thicknesses and trims.
LOGICPIR insulation board performance under different facers and thicknesses
LOGICPIR insulation board performance under various facers and thicknesses is studied and compared to other insulation boards. This study also examines the effect of different types of facers on PIR’s hygrothermal performance. It was found that facers made from fiberglass, aluminum, and unfaced insulation improved the hygrothermal performance of the wall system.
The LOGICPIR insulation board was tested in a wall structure that had a 10 mm internal plaster, 200 mm aerated concrete block masonry, a ventilated air gap, and exterior cladding. Different PIR thermal insulation facings were used with different types of faces to retain their thermal conductivity. The board sizes were 600×1200 mm, 1200×1800 mm, and 1200×3000 mm.
A thermal coupling coefficient (TC) of 0.2948 W/mK was measured between a PIR with and without aluminum foil facing. It was found that the PIR without facings showed similar results to the other two variants. However, without facings, heat flow through a corner was significantly increased. Figure 5 shows this effect. However, this is an underestimate of the heat transfer through corners.
The experimental measurement of PIR performance under various facers and thicknesses was performed under the same conditions. The results of the measurements were compared using a LOGICPIR thermal transmission meter. The aluminum foil facing showed greater heat transfer to the outside, but a similar difference was found with the other types. The difference between these two types of PIR performance was 8.5 times lower than Figure 6, which indicates that the aluminum foil facing increased the heat flow to the outside.
LOGICPIR insulation board performance under different moisture infiltration
This study describes the LOGICPIR insulation board performance under a range of moisture infiltration conditions. The test is conducted using PIR boards with a fiberglass facer. The aluminum face is not investigated for hygrothermal property characterization. The equilibrium moisture content of the panels is determined according to ASTM Standard C1498. Each test point requires three specimens, each 100 mm x 100 mm. The measurements are carried out in climatic chambers maintained at a constant temperature of 23 degC and the desired relative humidity set point.
The study also looked at the effects of various application parameters, including vapor barrier applications, climates, and the types of insulation. Despite these differences, the thicker insulation provided better moisture control strategy and maintained the sheathing board warmer. In addition, the facer materials of the PIR insulation board played a crucial role in the hygrothermal performance of the wall systems. Aluminum-faced PIR insulation outperformed PIR Boards with fiberglass facers and XPS facers.
The study was conducted at the Building Science Centre of Excellence at BCIT. The study involves the measurement of different hygrothermal and thermal properties of PIR insulation, including density, hygrothermal conductivity, vapor permeability, water absorption coefficient, and porosity. The experimental test setup and simulations are discussed in the following sections. The results of the study are presented in Graphite®.