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43mm SIP Structural Insulated Panel - PIR and OSB 8x4

43mm SIP Structural Insulated Panel - PIR and OSB 8x4

  • SIP Panels
  • Insulation King

  • Free Next Day Delivery (over £500) in the West Midlands
  • Free Standard Delivery (over £500)
  • View our guides for Help & Advice
 (   Ex. VAT) £144.17 £0.00 /
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🚛 Next Day Delivery (West Midlands) – FREE on orders over £500

The 43mm SIP Structural Insulated Panel with PIR and OSB is a high-performance construction board designed to deliver reliable thermal insulation, structural strength, and durability for modern building applications. Manufactured with a rigid polyisocyanurate (PIR) insulation core combined with a strong 9mm oriented strand board (OSB) facing, this panel provides an efficient solution for energy-efficient construction projects.

With an R-value of 1.14m²K/W and low thermal conductivity of 0.022 W/mK for the PIR core, the panel helps reduce heat transfer and improve building energy efficiency. The foil-faced PIR core provides an integrated vapour control layer, helping minimise moisture movement and maintain long-term structural performance.

Featuring a square-edge profile, the panel allows accurate installation using the butt joint technique. Its durable OSB surface and robust PIR core make it suitable for roofs, walls, floors, and general construction applications, providing builders and contractors with a reliable high-performance OSB SIP panel manufactured by Custom made®.

Key Features

  • High-performance PIR insulated structural sandwich panel
  • Combines PIR insulation core with 9mm OSB facing
  • Excellent thermal performance with R-value of 1.14m²K/W
  • Low thermal conductivity of 0.022 W/mK for improved energy efficiency
  • Integrated vapour control layer through foil-faced PIR core
  • Strong PIR core with 150 kPa compressive strength
  • Durable OSB facing with approximately 650kg/m³ density
  • Suitable for roofs, walls, floors, and general construction applications
  • Square-edge profile for precise butt joint installation
  • High-performance OSB SIP panel manufactured by Custom made®

Dimensions & Pack Size

  • Panel Size: 2400mm x 1200mm
  • Overall Thickness: 43mm
  • Core Material: Polyisocyanurate (PIR) insulation
  • Facing Material: 9mm Oriented Strand Board (OSB)
  • Weight: 33.00kg per panel
  • Pack Size: Single panel (2400mm x 1200mm x 43mm)
  • Profile: Square Edge

DELIVERY INFORMATION

  • FAST RELIABLE UK DELIVERY 
  • STANDARD DELIVERY - 1 TO 3 WORKING DAYS
  • FREE DELIVERY ON ORDERS OVER £500
  • PALLET DELIVERY AVAILABLE
  • NEED IT URGENTLY? CONTACT US FOR EXPRESS OPTIONS

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Frequently Asked Questions

Free shipping will automatically be applied to all orders over £500. Simply add over £500 to your cart and you will see the discount while checking out.

Orders under £500 - £50 charge.
Over £500 is free.

We typically deliver orders within 2-3 business days of ordering.

Orders for the West Midlands will be completed in 1 to 2 working days.

Orders for areas out of the West Midlands will be completed in 3 to 4 working days.

Orders made after 5pm will be processed on the following working day.

Our deliveries are typically made between 8am and 5pm, Monday - Friday excluding Bank Holidays (Great Britain).

We are unable to offer timed deliveries.

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