Le PIR : Isolant thermique en panneaux ou coquilles pour tuyaux HVAC

Polyisocyanurate, abbreviated PIR, is essentially an insulator belonging to the family of rigid polyurethane (PUR) foams.

Polyisocyanurate (PIR) is a synthetic insulating material specially developed for insulation, it is generally used in roof insulation but its use can also be extended to industrial needs.

It has many insulating characteristics:

• Thermal insulation

Polyisocyanurate has very good thermal insulation performance. It helps prevent heat loss by constituting an insulating protective barrier. It is one of the most efficient heat insulators on the market.

• Sound insulation

PIR does not have a very good performance in terms of sound insulation.

• Fire resistance

The PIR is made of flame retardant material which gives it a fairly good resistance to flames. It is not, however, completely incombustible.

• Strength & durability

Polyisocyanurate in plate form has a stable structure that resists deformation, it is a strong and durable insulator, when used under normal conditions the service life of polyisocyanurate can reach 50 years.

• Moisture resistance

PIR is hydrophobic which prevents the formation of mold and the development of bacteria on its surface.

• Various packaging

Polyisocyanurate is generally packaged in the form of insulation boards or spray foam. On the other hand, for industrial needs it can be declined in the form of shells, staves, elbows and shaped parts.

• Insulation of Buildings
• Roof insulation

Polyisocyanurate is widely used in roof insulation, especially in commercial buildings. It is applied as a hard plate with high density.

• External wall insulation

Polyisocyanurate sheets can also be placed on the exterior facade of walls and help to considerably reduce thermal bridges in buildings and homes. The insulating and anti-humidity properties of PIR make it a very effective material for the insulation of buildings.

• Floor insulation

The high density of polyisocyanurate panels allows them to be used as floor insulation. It does not deform and can withstand heavy weight.

• Pipe and pipe insulation

PIR can also be used for the insulation of refrigeration pipes: frost protection pipes, chilled water networks and other cold applications. It is resistant to temperatures down to -120 ° C.

• Insulation for industry and process

The thermal performance of PIR makes it a very suitable insulator for industrial use. It comes in the form of shells, staves, elbows and shaped parts. It can thus be used as an insulator for storage bins or spheres, for example.

SMI offers a whole range of polyisocyanurate-based insulators: shell, stave, elbow and pieces that can be cut to size according to your needs. Polyisocyanurate parts can be transformed with suitable and varied finishes. Possibility of longitudinal and circumferential rebating.

Do you need insulating materials based on polyisocyanurate? Contact us!