Unilin Insulation PIR Insulation Board - 2400 x 1200 x 70mm

Name: Unilin Insulation PIR Insulation Board - 2400 x 1200 x 70mm
Brand: Unilin Insulation
SKU: 4t76ckxzcg
Price: 64.36 GBP
Availability: InStock

The Unilin XT PR Rigid PIR Insulation Board delivers superior thermal performance engineered for f...

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Unilin Insulation XT PR Rigid PIR Insulation Board for Pitched Roofs 2400 x 1200 x 70mm

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Product Information

Full details

The Unilin Insulation PIR Insulation Board is designed for builders and renovators seeking superior thermal insulation in floors, walls, and roofs. Its key benefit is achieving optimal U-values with minimal thickness due to its low thermal conductivity of 0.022W/mK. A potential caveat for some projects is its specific dimensions (2400 x 1200 x 70mm), which require careful planning. This high-performance board features a foil-faced polyisocyanurate (PIR) core, reducing heat loss and thermal bridging, and is suitable for ventilated, hybrid, and warm roof constructions.

All features

Model Part Number	XT/PR_UF/070/BD/SP06
Brand	Unilin Insulation

Extended Product Information

FAQs

What is the R-value of the Unilin Insulation PIR Board?

The Unilin Insulation PIR Board has a thermal conductivity of 0.022W/mK. The R-value is calculated by dividing the thickness by the thermal conductivity. For a 70mm board, the R-value is approximately 3.18 m²K/W.

Can this board be used for external wall insulation?

Yes, this board is suitable for floors, walls, and roofs, and can be used in external wall insulation systems, provided it is installed according to relevant building codes and manufacturer guidelines for such applications.

How do I seal the joints between boards?

Joints should be tightly butted and sealed using a high-quality foil tape specifically designed for insulation boards to ensure airtightness and thermal continuity.

What is the fire rating of this PIR insulation board?

The product is certified to EN13166, which relates to its thermal insulation properties. Specific fire performance data should be consulted from the manufacturer's technical documentation or product certification.

Can I fix plasterboard directly to the foil face?

Direct fixing of plasterboard to the foil face is generally not recommended without appropriate preparation. Mechanical fixing or the use of a suitable adhesive system designed for foil-faced boards is advised. Consult manufacturer guidelines for specific recommendations.

What is the coverage per board?

Each board has a coverage of 2.88m².

Is this board suitable for a flat roof?

Yes, this board is suitable for various roof constructions, including warm roof applications, which are common for flat roofs. Ensure installation follows best practices for flat roofing systems.

Troubleshooting

Board is difficult to cut cleanly

Use a sharp, fine-toothed saw or a dedicated insulation knife. Ensure a steady, controlled cutting motion. Consider a power saw with a fine blade for larger volumes.

Poor adhesion of finishes to the foil face

Ensure the foil surface is clean and dry. Mechanical fixing or priming with a suitable primer designed for foil-faced insulation may be necessary before applying adhesives or finishes.

Gaps between boards after installation

Ensure boards are cut to size accurately and butted tightly together. Seal any remaining small gaps with appropriate expanding foam or sealant suitable for insulation, and then cover with foil tape.

Condensation appearing on the foil surface

This may indicate a breach in the vapor control layer or inadequate ventilation. Review the building design and installation details to ensure airtightness and proper vapor management.

Pros and Cons

Pros

Exceptional thermal insulation (0.022W/mK)
Reduces thermal bridging effectively
Suitable for multiple building elements (floors, walls, roofs)
Improves energy efficiency and reduces heating costs
Lightweight and easy to handle/install
Certified quality assurance (ISO9001, EN13166)

Cons

Fixed dimensions (2400 x 1200 x 70mm) may require cutting for custom fits
Foil facing may require specific joint taping/sealing methods
PIR core requires appropriate cutting tools and dust management
Not suitable for applications requiring flexible insulation

Setup, Compatibility & Care

Setup: Ensure the substrate is clean, dry, and free from defects before installation. Boards should be cut using appropriate tools (e.g., fine-toothed saw or insulation knife) ensuring straight edges. For roof applications, follow specific detailing for ventilated, hybrid, or warm roof configurations, ensuring continuity of insulation and vapor control layers where required. Joints should be tightly butted and sealed with appropriate foil tape to maintain airtightness and prevent thermal bridging.

Compatibility: The Unilin XT PR board is compatible with most common construction materials. It can be used with timber or metal framing, concrete, and masonry structures. Ensure compatibility with any adhesives, fixings, or membranes used in conjunction with the board.

Care: Store boards flat in a dry, protected environment away from direct sunlight and extreme temperatures. Avoid exposure to moisture. During installation, handle boards carefully to prevent damage. Clean any dust or debris from the surface before proceeding with subsequent finishes.