Thermal Insulation

Key Takeaways: 

  • Gaps, joints, and seams in the building envelope can compromise both airtightness and insulation, as well as reduce acoustic performance.
  • Soudal expanding foams deliver reliable thermal and acoustic insulation while maintaining airtight seals.
  • Suitable for a wide range of substrates, from concrete and brick to metal and PVC.  
  • The FlexiFoam and Soudatherm Roof 330 systems enhance energy efficiency and reduce thermal bridging. 

Thermal Insulation 

Maintaining airtightness and proper insulation is key to achieving energy efficiency in any build. Even small openings in the building shell can cause significant heat loss and reduce overall performance. To prevent this, single-component polyurethane foams are ideal for filling seams, joints, and holes, restoring airtightness and insulation to the structure. 

Soudal’s range of high-performance foams provides strong adhesion, stable expansion, and superior insulation values for a clean, professional result. The FlexiFoam ensures flexibility and airtight sealing where movement may occur, while the Pro Expanding Foam range, including Click & Fix, Genius Gun, Aerosol, and Gun Grade formats, delivers fast-curing, easy-to-apply solutions for a wide variety of construction applications. For roof insulation systems, Soudatherm Roof 330 offers powerful bonding strength and consistent thermal protection, ensuring long-lasting performance across all building types. 

Advantages of using Soudal foam: 

  • Ensures a complete airtight seal
  • Excellent thermal and acoustic insulation
  • Controlled expansion for clean, accurate application
  • High form stability with minimal post-expansion
  • Large filling capacity for efficient coverage
  • Compatible with most substrates: concrete, brick, stone, wood, PVC, and painted surfaces 

FAQs

Can these foams be used for both new builds and renovations?

Yes, Soudal foams are suitable for both new construction and retrofit projects to improve insulation and airtightness.

What’s the difference between Flexifoam and Pro Expanding Foam?

Flexifoam offers greater flexibility for movement joints, while the Pro Expanding Foam range is designed for strong adhesion and rapid application on larger gaps.

Is Soudatherm Roof 330 only for roofing applications?

Primarily, yes, it’s made for bonding insulation boards to roofing substrates, though it can also be used in other large-scale bonding applications, but it should only be used on horizontal surfaces.

Can I paint over these foams?

Yes, once fully cured and trimmed, Soudal foams can be painted to match the surrounding surface. We recommend that foam exposed to UV be painted to be protected and last longer.