Key takeaways

  • Purex NG 0808 NF B2 open-cell spray foam has been tested and confirmed to be resistant to mould growth.
  • The material’s performance has been confirmed by ITB test report No. LZM01-03144/16/Z00NZM.
  • The foam does not provide a favourable environment for mould growth, helping it maintain its properties over the long term.
  • Its seamless spray application helps minimise thermal bridging and reduce the risk of water vapour condensation.
  • The insulation contributes to maintaining a healthy indoor environment.
  • It is suitable for applications including attics, pitched roofs, timber-frame walls and energy-efficient buildings.
  • Properly installed insulation helps improve both building comfort and energy efficiency.

What is Purex NG 0808 NF B2 open-cell foam?

Purex NG 0808 NF B2 open-cell polyurethane foam for spray application is a modern insulation material that successfully combines high thermal insulation performance with durability and safety in use. Thanks to spray application technology, it forms a tight, uniform insulation layer, eliminating thermal bridges and thoroughly filling even hard-to-reach spaces.
In addition to its excellent thermal properties, the foam also stands out for its resistance to mould growth, which is vital for the durability of the insulation and the comfort of using the building.

Why is resistance of spray foam insulation to mould growth so important?

Mould fungi develop primarily where there is prolonged moisture and favourable environmental conditions. Their presence can lead to poorer indoor air quality, damage to building materials, and increased operating and repair costs.
A properly selected insulation material should not only effectively reduce heat loss, but also retain its properties for many years without creating conditions conducive to the growth of microorganisms.

Confirmed resistance of spray foam insulation to mould growth

The resistance of open-cell spray foam to mould growth has been confirmed by laboratory tests carried out in accordance with the applicable testing procedures.
Test report No. LZM01-03144/16/Z00NZM issued by the Building Research Institute (ITB) confirms that the material is resistant to mould growth, which is a significant advantage both in residential buildings and in public-use or commercial buildings.
The confirmed properties of the material increase the safety of its use and give investors confidence that the insulation applied will maintain its high quality over the long term.

What does resistance of spray foam insulation to mould growth mean?

The material’s resistance does not mean that it completely eliminates the possibility of mould appearing in the building. Fungal growth depends on many factors, such as moisture in building elements, structural leaks, inadequate ventilation, or water vapour condensation.
It does mean, however, that the foam itself does not provide a nutrient source that encourages mould growth, so it retains its performance properties and helps maintain durable insulation for many years.

A tight insulation layer also means a lower risk of moisture problems

One of the greatest advantages of open-cell spray foam is its ability to tightly fill insulated spaces. The material adheres closely to structural elements, eliminating gaps and reducing uncontrolled airflow.
Properly installed insulation helps reduce localised cooling of building elements and the formation of thermal bridges, which can lead to water vapour condensation. As a result, the risk of conditions that favour mould growth is reduced.

Where is resistance of spray foam insulation to mould growth particularly important?

The material’s properties are particularly important in places exposed to periodically elevated humidity or significant temperature differences.
Open-cell spray foam is ideal for insulating:

• converted lofts,
• pitched roofs,
• partition walls,
• timber floors,
• energy-efficient buildings,
• detached houses,
• service and commercial buildings.

In each of these applications, properly installed insulation helps maintain the right indoor climate and the durability of the entire building element.
Benefits for investors

Choosing open-cell spray foam is an investment in the comfort and safety of building use. The material provides not only excellent thermal insulation, but also a range of additional benefits:

• test-confirmed resistance to mould growth,
• durable performance characteristics,
• tight insulation that eliminates thermal bridges,
• a perfect fit to the structure,
• low dead weight,
• quick and precise installation using spray application,
• support in maintaining a healthy indoor climate inside the building.

Summary

Modern insulation should provide not only high energy efficiency, but also durability and safety in use. Purex NG 0808 NF B2 open-cell spray foam meets these requirements, offering test-confirmed resistance to mould growth and excellent thermal insulation properties.
Thanks to airtight spray application, material durability, and resistance confirmed by a test report, the foam is a solution that helps create comfortable, energy-efficient, and safe buildings for many years. This is the choice for investors who expect not only effective insulation, but also the assurance that the material used will retain its properties throughout its service life.

 

Are you planning to build a new home, upgrade the energy efficiency of an existing building, or looking for a durable and effective solution for attic insulation?
Get in touch with our specialists. We will be happy to answer your questions about the properties of Purex NG 0808 NF B2 spray foam, help you select the right solution for your project, and prepare a tailored quotation.
Call or contact us to find out how spray foam insulation can improve the comfort, energy efficiency and durability of your building.

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