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Premium PIR Cavity Wall Insulation with Tongue and Groove

Maximise thermal efficiency with premium PIR cavity insulation designed for tongue and groove cavity wall insulation applications. Our PIR boards deliver industry-leading thermal efficiency, reduced heat loss, and easier installation — ideal for new builds, renovation projects, and energy-efficient constructions throughout Ireland.

What is PIR Cavity Insulation?

PIR (Polyisocyanurate) cavity insulation is a rigid foam insulation board engineered for high thermal resistance and long-term efficiency in masonry cavity wall systems. PIR boards are lightweight yet thermally efficient, with low thermal conductivity.

Why Choose Tongue and Groove Insulation?

Our tongue and groove insulation boards feature precision-cut edges that interlock for a continuous insulation layer, dramatically reducing gaps and thermal bridging. This design ensures consistent coverage, superior efficiency, and simpler installation on site.

Key Benefits:

  1. Superior Thermal Efficiency: Rigid PIR core with low thermal conductivity improves heat retention and reduces energy bills.
  2. Continuous Insulation Layer: Tongue and groove (T&G) edges lock boards together to minimise gaps and cold spots.
  3. Reduced Thermal Bridging: Tight interlocking joints help maintain consistent insulation across the wall cavity.
  4. Moisture Protection: A maintained residual cavity helps prevent wind-driven rain and moisture transfer.
  5. Faster Installation: Lightweight PIR boards with engineered T&G profiles are easy to handle and position between wall ties

Tongue and Groove Installation Tips

To maximise the efficiency of your tongue and groove cavity wall insulation:

  • Ensure the cavity is clear and debris-free.
  • Push boards snugly between wall ties with T&G edges fully interlocked.
  • Allow for correct residual cavity and compliance with local building requirements.
  • Finish installation according to best practice for masonry cavity walls.

Order Quality PIR Cavity Insulation with Tongue and Groove Today

Upgrade your cavity wall build with premium PIR boards that deliver enhanced thermal performance, durability, and ease of installation. Contact us today to place your order, request a quote, or get expert advice on the right PIR cavity insulation solution for your construction project from Eden Building Supplies in Ireland.