FAQs XLPE Insulation

How much temperature reduction will happen by applying?

The temperature reduction achieved by applying Aerolam Insulation products depends on the material, thickness, and application method. For example, XLPE (Cross-Linked Polyethylene) insulation can reduce heat transfer significantly, maintaining indoor temperatures by up to 15–20°C, depending on the external conditions.

What are the advantages of foil and which side (top, bottom, or both sides) should it be applied on (especially for XLPE)?

Foil provides excellent thermal insulation and moisture resistance. It reflects heat back into the building, making it highly effective for temperature control.
  • For XLPE, foil should be applied on both sides to maximize its reflective properties and provide better heat retention and moisture resistance.
  • Advantages:
    • Reflects radiant heat, reducing heat gain or loss.
    • Helps in controlling condensation.
    • Improves thermal efficiency and durability of insulation.

How much temperature reduction will happen by applying?

The temperature reduction achieved by applying Aerolam Insulation products depends on the material, thickness, and application method. For example, XLPE (Cross-Linked Polyethylene) insulation can reduce heat transfer significantly, maintaining indoor temperatures by up to 15–20°C, depending on the external conditions.

What is antimicrobial?

Antimicrobial refers to the ability of a material to resist or prevent the growth of harmful microorganisms, such as bacteria, mold, or mildew. This property is essential for insulation materials in environments where hygiene and cleanliness are critical, as it prevents the development of microbes that could degrade the material or impact indoor air quality.

How much sound reduction in dB value?

The sound reduction capability of Aerolam Insulation products varies based on the material type and thickness. For example, XLPE typically offers a sound reduction of around 20-30 dB depending on its application. For better acoustic performance, multi-layered solutions may be used to further enhance soundproofing.

What is Class O and how is it better than Class 1?

Class O is a fire classification indicating that a material has very high fire resistance, preventing the spread of flames and reducing smoke emission.

  • Class 1 materials offer a lower level of fire resistance, meaning they still allow some flame spread and smoke.
  • Class O is better because it provides superior protection in the event of a fire, making it suitable for buildings with stringent fire safety requirements.

How many hours of fire rating?

Aerolam products are typically fire-rated for up to 4 hours, depending on the material and application. This means they can withstand high temperatures for this duration without compromising their structural integrity or fire safety performance.

What will happen in case of water ingress / leakage from the roof?

In the event of water ingress or leakage from the roof, Aerolam Insulation materials, especially XLPE, are moisture-resistant and will not absorb water, ensuring the insulation’s effectiveness remains intact. However, prolonged exposure to moisture could affect the performance of some materials, leading to reduced insulation properties or potential damage to other building structures.

During winter, which product will sustain the dew factor and maintain inside temperature?

During winter, Aerolam XLPE and Fiberglass-based insulation products are excellent for maintaining a stable indoor temperature and preventing dew formation. These products offer superior thermal resistance, ensuring that the indoor temperature remains comfortable while also preventing condensation issues.

Is XLPE better than Bubble? How?

Yes, XLPE is generally better than Bubble Insulation for many applications. XLPE offers:

  • Superior thermal insulation and moisture resistance.
  • A denser and more durable structure compared to the air gaps in bubble insulation.
  • Longer-lasting performance, especially in demanding environments, making it the better choice for higher-strength and moisture-resistant needs.

What is the optimum thickness for under-deck insulation in PEB?

The optimum thickness for under-deck insulation in Pre-Engineered Buildings (PEB) typically ranges from 25mm to 50mm. The thickness will vary depending on the insulation material and the required thermal performance. Aerolam’s XLPE and Fiberglass insulation products are customizable for these specific applications.

How is it better than wool insulations?

Aerolam’s Insulation products, such as XLPE, offer several advantages over wool insulation:

  • Water Resistance: XLPE is highly moisture-resistant, unlike wool, which loses effectiveness when wet.
  • Durability: Aerolam products are more durable and resistant to compression, providing longer-lasting performance.
  • Thermal Efficiency: XLPE provides better thermal resistance and is more efficient at maintaining indoor temperature control.

What is K value? How does it affect the insulation properties?

The K value (thermal conductivity) measures how well a material conducts heat.

  • A lower K value means the material is a better thermal insulator, as it resists heat flow more effectively.
  • Aerolam products generally have a low K value, which improves their thermal efficiency and reduces energy consumption.

How to calculate the R value?

The R value is calculated using the formula:
R value = thickness of material (in meters) / thermal conductivity (K value).
For example, if a material has a thickness of 0.05 meters (5 cm) and a K value of 0.035 W/m·K,
the R value would be:
R = 0.05 / 0.035 = 1.43 m²·K/W.
A higher R value indicates better thermal resistance.

What is U value?

The U value (thermal transmittance) is the inverse of the R-value. It measures the rate at which heat passes through a material.
U = 1 / R-value.
A lower U value means better thermal insulation, as it indicates less heat transfer through the material.

What is open cell and closed cell thermal insulation?

  • Open-Cell Insulation has a structure where the cells are not fully enclosed, allowing air to pass through. It is great for acoustic insulation but is less effective at moisture control and thermal resistance.
  • Closed-Cell Insulation has fully sealed cells that block air and moisture, providing superior thermal insulation and moisture resistance.

Is semi-open cell better than open cell materials for acoustics?

Yes, semi-open cell insulation is often better than open cell materials for acoustics, as it offers a good balance between sound absorption and durability. While open cell insulation is excellent for noise reduction, semi-open cell materials provide better performance in moisture resistance and overall durability.

Why does foil get blackened? How does it happen?

Foil can become blackened due to oxidation or the buildup of carbon deposits when exposed to heat, smoke, or contaminants. This process occurs when the foil reacts with the surrounding environment, especially if it’s near heat sources or exposed to moisture, which can lead to darkening over time.

Is Metpet foil better than Alu foil?

Metpet foil (metalized polyester film) is often better than Aluminum foil in certain applications because it is more flexible, lightweight, and durable under varying conditions. It also has better resistance to tearing and greater thermal insulation properties in some cases.

Why Alupet foil for flanges?

Alupet foil is commonly used for flanges due to its superior heat resistance, moisture protection, and durability. It provides a strong, reflective surface that helps to maintain flange performance and prevent heat loss in HVAC and industrial applications.

What is male-female flanges?

Male-female flanges refer to how the two flanges fit together. The male flange has a protruding lip (the “male” part), while the female flange has a corresponding groove (the “female” part) that allows the two flanges to securely interlock, ensuring a tight, leak-proof connection.

What is the flange width?

The flange width refers to the measurement of the flange’s outward extension from its body. Typical flange widths range from 20mm to 50mm, depending on the material and application. The flange width plays a key role in creating a secure seal between insulation materials and ensuring the connection’s durability.

How are flanges better for under-deck applications in new structures?

Flanges are ideal for under-deck applications in new structures because they provide a secure connection between insulation materials, helping to prevent air leaks, moisture intrusion, and improving thermal performance. Flanges also offer easier installation and future maintenance.

What is the warranty period?

Aerolam offers a warranty period of 5 to 10 years on most of our insulation products, depending on the material and application. This warranty covers performance defects and ensures that the materials meet the quality standards for long-lasting use.

What will happen in case of fire?

In the event of a fire, Aerolam Insulation products are designed to resist combustion and minimize fire spread. XLPE and other materials undergo rigorous fire tests to meet safety standards. While no material is entirely fireproof, Aerolam products provide excellent protection by limiting flame spread and heat transfer, ensuring enhanced fire safety.

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