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PIR Cavity Wall Insulation Board 50 x 1200 x 450

100% of 100
Special Price £6.47 Regular Price £9.74



  • Partial fill cavity wall insulation 
  • Excellent thermal & fire performance
  • Low emissivity foil facing
  • No exposure restrictions
  • Square edge jointing
Frequently bought together

❗️ Special Order Product Policy: Products marked as ''Special Order Product'' are made to order exclusively for you and are non-refundable. Once an order is placed, it cannot be cancelled, modified, or refunded.

❗️ Please note the estimated delivery lead time might vary, please call the branch on 01708985022 or email us at [email protected] to confirm before placing an order.

Product Information

PIR Cavity Wall Insulation is the most popular type of rigid insulation wall boards, comprises a fiber-free rigid polyisocyanurate (PIR) insulation core with aluminium foil composite facing on both sides. It has a high compressive strength, improved insulation & durability. Moreover, it provides improved fire resistance and moisture tolerance.

Use & Application

Due to its high-performance insulation, the PIR wall insulation board is suitable for cavity wall applications with maintaining a residual 10mm cavity. This will help the board to resist moisture transfer and aid installation.

  • Domestic and most commercial applications
  • New Builds
  • Refurbishment projects


  • Excellent thermal & fire performance
  • Environmentally friendly
  • Durable and maintenance-free
  • Provides a cost-effective means of reducing CO2 emissions
  • Will optimise the performance of underfloor heating
  • Low thermal conductivity
Length 1200mm
Width 450mm
Thickness 50mm
Thermal Conductivity 0.022 W/mK
Core PIR
Facing Aluminium composite foil
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