25mm Insulation Board

At Insulation4less.co.uk, we stock a wide range of high quality insulation materials to suit every need. Our 25mm insulation boards are perfect for keeping your home warm in the winter and cool in the summer. They are easy to install and come in a variety of sizes to fit any space. Whether you're insulating a small room or a large area, we have the perfect solution for you. We also offer free delivery on all eligible orders, so you can be sure you are getting the best possible deal.
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes) Floor Insulation
Vendor
Celotex
Regular price
from £12.67 £15.20
Sale price
from £12.67 £15.20
Regular price
£15.48
Unit price
per 
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Celotex 25mm TB4025 2.4m x 1.2m
Celotex 25mm TB4025 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£12.67 £15.20
Sale price
£12.67 £15.20
Regular price
£15.48
Unit price
per 
Sold out
Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm
Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm Floor Insulation
Vendor
Celotex
Regular price
from £12.67 £15.20
Sale price
from £12.67 £15.20
Regular price
£15.48
Unit price
per 
Sold out
Kingspan Thermafloor TF70 Floor Board (All Sizes) 2.4m x 1.2m
Kingspan Thermafloor TF70 Floor Board (All Sizes) 2.4m x 1.2m Floor Insulation
Vendor
Kingspan
Regular price
from £116.64 £139.97
Sale price
from £116.64 £139.97
Regular price
£0.00
Unit price
per 
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Kingspan Thermapitch TP10 Pitched Roof Board (All Sizes) 2.4m x 1.2m
Kingspan Thermapitch TP10 Pitched Roof Board (All Sizes) 2.4m x 1.2m Loft Insulation
Vendor
Kingspan
Regular price
from £116.64 £139.97
Sale price
from £116.64 £139.97
Regular price
£0.00
Unit price
per 
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Kingspan Thermaroof TR27 Flat Roof Board - All Sizes
Kingspan Thermaroof TR27 Flat Roof Board - All Sizes All Insulation
Vendor
Kingspan
Regular price
from £89.86 £107.83
Sale price
from £89.86 £107.83
Regular price
£0.00
Unit price
per 
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EcoTherm Eco-versal Insulation Board 2.4m x 1.2m - All Thicknesses
EcoTherm Eco-versal Insulation Board (2.4m x 1.2m) - All Sizes Floor Insulation
Vendor
Ecotherm
Regular price
from £12.90 £15.48
Sale price
from £12.90 £15.48
Regular price
£0.00
Unit price
per 
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Kingspan Thermawall TW55 Steel/Timber Framing Board (All Sizes) 2.4m x 1.2m
Kingspan Thermawall TW55 Steel/Timber Framing Board (All Sizes) 2.4m x 1.2m Wall Insulation
Vendor
Kingspan
Regular price
from £116.64 £139.97
Sale price
from £116.64 £139.97
Regular price
£0.00
Unit price
per 
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Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm
Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm Floor Insulation
Vendor
Kingspan
Regular price
from £278.95 £334.74
Sale price
from £278.95 £334.74
Regular price
£0.00
Unit price
per 
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Rockwool RWA45 (All Sizes)
Rockwool RWA45 (All Sizes) Floor Insulation
Vendor
Rockwool
Regular price
from £22.00 £26.40
Sale price
from £22.00 £26.40
Regular price
£0.00
Unit price
per 
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Kingspan Kooltherm K107 Pitched Roof Board (All Sizes) - 2.4m x 1.2m
Kingspan Kooltherm K107 Pitched Roof Board (All Sizes) - 2.4m x 1.2m Roof Insulation
Vendor
Kingspan
Regular price
from £236.54 £283.85
Sale price
from £236.54 £283.85
Regular price
£0.00
Unit price
per 
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Kingspan Thermaroof TR26 Flat Roof Board (All Sizes) 2400mm x 1200mm
Kingspan Thermaroof TR26 Flat Roof Board (All Sizes) 2400mm x 1200mm All Insulation
Vendor
Kingspan
Regular price
from £0.00 £0.00
Sale price
from £0.00 £0.00
Regular price
£0.00
Unit price
per 
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Welcome to the 25mm Insulation Board category on Insulation4less! This specific thickness of insulation board is widely recognised for its effectiveness in various insulation applications across various construction and refurbishment projects. The 25mm insulation boards are meticulously crafted to balance physical properties and thermal performance.

CELOTEX Insulation Boards

Celotex boards, with options like the GA4000 and TB4025, serve as general-purpose insulation boards suitable for a multitude of applications such as floor, wall, and roof systems. Manufactured with PIR (Polyisocyanurate) technology, these boards are celebrated for their low thermal conductivity and firm structural integrity, making them a favoured choice in both residential and commercial settings.

KINGSPAN Insulation Solutions

Kingspan, a notable name in the insulation industry, provides various 25mm insulation boards tailored for specific areas and applications:

  • Thermafloor TF70: Specifically designed for floor applications, ensuring stable thermal performance on ground floors and basements.
  • Thermapitch TP10 and Kooltherm K107: Targeted for pitched roofs, these boards maintain a steady internal temperature by reducing heat loss through the roofing structure.
  • Thermaroof TR27 and TR26: Ideal for flat roofs, providing robust, reliable, and enduring thermal insulation.
  • Thermawall TW55: Suitable for steel and timber framed wall insulation, delivering consistent thermal resistance.
  • Kooltherm K103 Floorboard: A premium offering for floor insulation with exceptional thermal performance.

     

ECOTHERM Universal Boards

EcoTherm’s Eco-versal boards are versatile insulation boards applicable across walls, floors, and roofs. They bring along the benefit of being universally applicable and are also fabricated with PIR technology, ensuring optimal thermal efficiency.

 

ROCKWOOL Insulation Boards

Rockwool RWA45, made from mineral wool, provides a distinctive solution for thermal, acoustic, and fire insulation. It's known for its resilience and is applicable to a myriad of surfaces, including walls, floors, and roofs.

 

Practical Applications & Suitability

Each product within the 25mm insulation board category has unique characteristics that make it suitable for specific applications:

  • Floor Insulation: Products such as Kingspan Thermafloor TF70 and Kooltherm K103 are crafted to minimise thermal bridges, thereby enhancing comfort and energy efficiency within spaces.
  • Roof Insulation: Boards like Kingspan Thermapitch TP10 and Thermaroof TR27 are meticulously designed to offer maximum thermal performance for pitched and flat roofs respectively, ensuring enhanced thermal comfort.
  • Wall Insulation: Solutions like the Celotex GA4000 and Kingspan Thermawall TW55, cater to diverse wall applications, providing a thermally efficient envelope to structures.
  • Universal Application: EcoTherm Eco-versal boards and Celotex TB4000 are practical options for varied applications, ensuring consistency in thermal performance across multiple areas of a building structure.

     

 

Guiding Your Selection

While choosing a 25mm insulation board, consider:

  • Application Area: Ensure the product is designed for the intended application (floor, wall, roof).
  • Thermal Performance: Check the thermal conductivity to ensure optimal thermal performance.
  • Material: Understand the material (e.g., PIR, mineral wool) to leverage specific advantages like fire resistance or acoustic insulation.
  • Budget: Opt for solutions that balance cost and performance, providing value for your investment.
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