PIR Alternatives

Browse our full range of PIR rigid insulation boards. Choose from Kingspan, Knauf Earthwool, Rockwool, Isover, Gyproc or Fibran. Need expert advice? Contact us by phone 020 3582 6399 or Live Chat - Hassle Free Return Policy
EPS 70 (All Sizes) 2400mm x 1200mm
EPS 70 (All Sizes) 2400mm x 1200mm Floor Insulation
Vendor
Insulation4Less
Regular price
from £54.20 £65.04
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from £54.20 £65.04
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Rockwool Flexi-Slab - All Sizes
Rockwool Flexi-Slab - All Sizes Loft Insulation
Vendor
Rockwool
Regular price
from £37.00 £44.40
Sale price
from £37.00 £44.40
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£0.00
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Knauf DriTherm Cavity Slab 37 - Glass Mineral Wool (All Sizes) 1200mm x 455mm
Knauf DriTherm Cavity Slab 37 - Glass Mineral Wool (All Sizes) 1200mm x 455mm Cavity wall Insulation
Vendor
Knauf
Regular price
from £35.40 £42.48
Sale price
from £35.40 £42.48
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£0.00
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Danosa Danopren TR XPS Insulation 600mm x 1250mm - All Sizes
Danosa Danopren TR XPS Insulation 600mm x 1250mm - All Sizes Floor Insulation
Vendor
Danosa
Regular price
from £41.22 £49.46
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from £41.22 £49.46
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£0.00
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Gyproc ThermaLine Basic Insulation 1.2m x 2.4m (All Sizes)
Gyproc ThermaLine Basic Insulation 1.2m x 2.4m (All Sizes) Wall Insulation
Vendor
British Gypsum
Regular price
from £780.23 £936.28
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from £780.23 £936.28
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£0.00
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Greenguard GG300 1.25m x 0.6m - All Sizes
Greenguard GG300 1.25m x 0.6m - All Sizes Wall Insulation
Vendor
Kingspan
Regular price
from £44.88 £53.86
Sale price
from £44.88 £53.86
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£0.00
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Warmline XPS Insulated Plasterboard 1.2m x 2.4m - All Sizes
Warmline XPS Insulated Plasterboard 1.2m x 2.4m - All Sizes Loft Insulation
Vendor
Warmline
Regular price
from £0.00 £0.00
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from £0.00 £0.00
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£0.00
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Knauf Rocksilk Flexible Slab (All Sizes) 1200mm x 600mm
Knauf Earthwool Flexible Slab 600mm x 1200mm - All Sizes All Insulation
Vendor
Knauf
Regular price
from £369.10 £442.92
Sale price
from £369.10 £442.92
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Kingspan Kooltherm K12 Framing Board (All Sizes) - 2.4m x 1.2m
Kingspan Kooltherm K12 Framing Board (All Sizes) - 2.4m x 1.2m All Insulation
Vendor
Kingspan
Regular price
from £252.36 £302.83
Sale price
from £252.36 £302.83
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£0.00
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Isover Batt - CWS 32 (All Sizes) 1.2m x 0.45m
Isover Batt - CWS 32 (1.2m x 0.45m) All Sizes Cavity wall Insulation
Vendor
Isover
Regular price
from £791.83 £950.20
Sale price
from £791.83 £950.20
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£0.00
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Unilin Thin-R PIR 125mm x 2.4m x 1.2m
Unilin Thin-R PIR 125mm x 2.4m x 1.2m Floor Insulation
Vendor
Unilin
Regular price
from £43.97 £52.76
Sale price
from £43.97 £52.76
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£0.00
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Isover Batt - CWS 36 (1.2m x 0.45m) All Sizes
Isover Batt - CWS 36 (1.2m x 0.45m) All Sizes Cavity wall Insulation
Vendor
Isover
Regular price
from £758.44 £910.13
Sale price
from £758.44 £910.13
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£0.00
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GreenGuard GG500 600mm x 1250mm - All Sizes
GreenGuard GG500 600mm x 1250mm - All Sizes Floor Insulation
Vendor
Kingspan
Regular price
from £8.46 £10.15
Sale price
from £8.46 £10.15
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£0.00
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Warmline PHE Insulated Plasterboard 1.2m x 2.4m - All Sizes
Warmline PHE Insulated Plasterboard 1.2m x 2.4m - All Sizes Loft Insulation
Vendor
Warmline
Regular price
£0.00 £0.00
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£0.00 £0.00
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£0.00
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Warmline EPS Insulated Plasterboard 1.2m x 2.4m - All Sizes
Warmline EPS Insulated Plasterboard 1.2m x 2.4m - All Sizes Loft Insulation
Vendor
Warmline
Regular price
from £0.00 £0.00
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from £0.00 £0.00
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£0.00
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Isover Party Wall Roll 100mm (28 Rolls)
Isover Party Wall Roll 100mm Acoustic Insulation
Vendor
Isover
Regular price
£1,560.00 £1,872.00
Sale price
£1,560.00 £1,872.00
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£0.00
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Embarking on a construction or renovation project demands careful selection of materials to ensure lasting efficiency and comfort. The PIR Alternatives category at Insulation4Less harbours a wide range of insulation materials, each tailored for specific application needs. Navigate through the efficacious alternatives to Polyisocyanurate (PIR) insulation, optimising thermal performance and meeting varied building requirements.

Expanded Polystyrene Insulation (EPS)

Known for its lightweight, durable and moisture-resistant properties, EPS insulation is commonly employed in a myriad of applications, from wall insulation, floor, and roof applications. EPS 70 presents a versatile option for both residential and commercial insulation, offering various thicknesses to meet specific U-value requirements and providing a cost-efficient solution for large scale applications.

 

Glass Mineral Wool Insulation

Glass mineral wool, showcased by Knauf’s diverse range, offers exceptional thermal and acoustic insulation, frequently used within cavity walls, lofts, and partition walls. DriTherm Cavity Slabs, and Rocksilk Flexible Slabs stand out for their remarkable fire resistance and moisture management, particularly apt for spaces demanding higher fire safety and noise control.

 

Rockwool Insulation

Rockwool brings forward stone wool insulation, praised for its formidable fire resistance and sound absorption capabilities. Flexi-Slab, adaptable in various setups, provides a stellar option for thermal, acoustic, and fire insulation in walls, ceilings, and floors, positioning it as a favourite among builders prioritising safety and quietude.

 

Extruded Polystyrene (XPS) Insulation

XPS insulations, including offerings like Danopren TR and GG300, stand out for their high compressive strength and impermeability to water, making them suitable for below-grade applications such as basements and foundations. Additionally, Warmline XPS Insulated Plasterboard amalgamates plasterboard and insulation, enabling a sleek finish with robust thermal performance, particularly conducive for wall insulation.

 

Gypsum-Based Insulation

Gyproc’s ThermaLine Basic, a gypsum-based insulation board, offers a dual advantage of wall drylining and high-performance insulation, ensuring internal environments maintain stable temperatures. Ideal for walls and ceilings, it is particularly beneficial in refurbishment projects to enhance thermal performance without compromising interior space.

 

Isover Insulation

Isover insulation materials, such as the Batts and Party Wall Rolls, commend themselves for versatile uses. Offering exceptional thermal and acoustic insulating properties, Isover products are extensively used in walls, lofts, and suspended floors, assuring minimised thermal bridges and optimal energy efficiency.

 

 

Selecting The Right Product

Determine Your Primary Need:

  • Thermal Insulation: If your main concern is to prevent heat transfer and maintain a consistent indoor temperature, materials like EPS, XPS, and Isover are excellent choices.

  • Acoustic Insulation: For spaces where noise control is crucial, such as home theatres or partitioned offices, Glass Mineral Wool and Rockwool are top contenders.

  • Fire Resistance: In areas where fire safety is a priority, Rockwool and certain Glass Mineral Wool products shine due to their inherent fire-resistant properties.

  • Moisture Control: For areas prone to moisture, like basements or bathrooms, opt for insulations like XPS which are impermeable to water.

 

Consider the Application Area:

  • Walls: Products like Gyproc ThermaLine Basic and Isover Batts are tailored for wall applications.

  • Floors and Basements: XPS insulations are particularly suited for below-grade applications.

  • Ceilings and Lofts: Glass Mineral Wool and Isover products can be ideal for these spaces.

  • Refurbishments: If you're renovating and want to boost insulation without sacrificing space, Gyproc’s gypsum-based boards are a prime choice.

 

Budget Constraints: 

While all insulation types offer long-term energy savings, initial costs can vary. EPS is known for being cost-effective, especially for large-scale applications. However, always weigh the cost against the product's lifespan, performance, and potential energy savings.

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