What is floor phenolic foam board and Why Do We Use Them?

Phenolic foam insulation is a type of rigid thermoset insulation known for its exceptional thermal performance, fire resistance, and moisture resistance. It is a popular choice for both residential and commercial buildings, offering a versatile and effective solution for achieving energy efficiency and creating a comfortable indoor environment.

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What is Phenolic Foam Insulation?

Phenolic foam insulation is made from a phenolic resin mixed with a blowing agent. This mixture is then cured to create a rigid foam with a closed-cell structure. The closed cells are filled with air, which acts as an excellent insulator. They are typically faced with aluminium foil or paper to provide additional strength and moisture resistance.

The Benefits

Phenolic foam insulation offers a wide range of benefits, making it a superior choice for various applications:

• Exceptional Thermal Performance: It has one of the highest R-values per inch of any common insulation material. This means it can achieve significant energy savings and reduce heating and cooling costs.
• Moisture Resistance: The closed-cell structure of phenolic foam makes it highly resistant to moisture, preventing dampness and condensation. This helps to maintain the integrity of the insulation and contributes to a healthier indoor environment.
• Fire Resistance: It has excellent fire performance characteristics, achieving a Class 0 fire rating. This makes it a safe choice for use in buildings.
• Lightweight and Easy to Install: They are lightweight and easy to handle, cut, and install. This makes them suitable for both DIY enthusiasts and professional installers.
• Environmentally Friendly: It is manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). It is also a recyclable material.  

Applications of Phenolic Foam Insulation

Phenolic foam insulation can be used in a variety of applications, including:

• Walls: They can be used to insulate both internal and external walls, improving thermal performance and reducing heat loss.
• Roofs: It is also suitable for roof insulation, both in pitched roofs and flat roofs.
• Floors: They can be used to insulate floors, both above and below the screed.
• Cavity Walls: They can be used to fill cavity walls, improving thermal performance and preventing dampness.

Choosing the Right Phenolic Foam Insulation

When choosing phenolic foam insulation, it is important to consider the following factors:

• Thickness: The thickness of the insulation will affect its thermal performance. Thicker boards generally provide better insulation.
• R-value: The R-value measures the thermal resistance of the insulation. Higher R-values indicate better insulation performance.
• Fire rating: The fire rating of the insulation will depend on the application.
• Budget: Phenolic foam insulation is available in a variety of price points.

Popular Phenolic Foam Insulation Products

Some of our popular products include:

• Kingspan Kooltherm K15 Rainscreen Board: This premium performance insulation board is ideal for use behind rainscreen cladding systems and masonry facades.
• Kingspan Kooltherm K17 Insulated Plasterboard: This insulated plasterboard combines a layer of foam insulation with a plasterboard finish, providing a streamlined solution for internal wall insulation.
• Kingspan Kooltherm K103 Floorboard: This premium performance floor insulation board is ideal for use in solid concrete or suspended timber floors.

Why Choose Phenolic Foam Insulation?

Phenolic foam insulation offers a high-performance, versatile, and sustainable solution for improving the energy efficiency and comfort of your home or building. It is an ideal choice for those looking to reduce energy bills, minimise their environmental impact, and create a healthier and more comfortable living or working environment.

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Phenolic Foam Insulation vs. Other Insulation Materials

Compared to other common insulation materials, phenolic foam insulation offers several advantages:

• Higher R-value: It has a higher R-value per inch than most other insulation materials, meaning it can achieve the same level of thermal performance with a thinner profile.
• Better Moisture Resistance: It is more resistant to moisture than many other insulation materials, making it a better choice for damp or humid environments.
• Superior Fire Resistance: It typically has a better fire rating than other insulation materials, such as polystyrene or mineral wool.

Eco-Friendly Insulation Choice

If you’re looking for an eco thermal insulation solution, phenolic foam insulation is a great option. It is manufactured with a blowing agent that has zero ODP and low GWP, and it is also a recyclable material. By choosing phenolic foam insulation, you can help to reduce your environmental impact and contribute to a more sustainable future.

Need Help Choosing the Right Insulation?

If you’re unsure about which type of insulation is right for your project, our team of experts at Online Insulation can help. We can provide you with personalised advice and guidance to help you make the best choice for your needs and budget.

Heating, Ventilating and Air Conditioning (HVAC)
The foam is cut to accurate tolerances on computer controlled cutting equipment. Parts available include traditional half sections, slotted slab, foil faced phenolic foam laminate ductboard, radius and bevelled lags, bends, flange box covers, valve box covers, etc. Materials are generally supplied with a vapour barrier facing. High density foam is also available for structural applications such as pipe and duct supports.

Building and Construction
Phenolic foam is used in many building applications, typically continuously laminated phenolic board is used in roofing, cavity board, external wall board, plasterboard dry lining systems, wall insulation, floor insulation and as a sarking board. The superior fire performance of phenolic foam is being recognised and this is leading to increased market share in these areas.

Factory Engineered Composite Panels
Composite panels comprise of a high density structural phenolic foam core with steel facings both sides and an appropriate jointing system. These panels are used in a range of applications including food processing factories, cold stores, semi conductor clean rooms and hospitals. These panels are structurally sound and fit for purpose for use in walk-on ceilings. The excellent fire performance provided by the phenolic foam core gives both good insulation and integrity performance in the 3m furnace fire resistance test.

Process / Petrochemical
Phenolic foam is used in process/petrochemical applications for the insulation of pipework, tanks, vessels etc.

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