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81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)

81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
  • 81mm Kingspan Kooltherm® K110 PLUS Soffit Insulation Board
  • Soffit insulation board with an impact resistant building panel
  • Ceiling (soffit) construction in new build and refurbishment projects
  • A1 Euroclass Fire Rated building board (decorative finish can be applied)
  • Available in the standard size 2400mm x 1200mm (4′ x 8′ sheets)
Estimated delivery:
In Stock
£ 1,398.90
Ex VAT: £ 1,165.75
  • Brand: Kingspan®
  • Model: 81mm Kingspan K110 PLUS
  • Weight: 328.74kg
  • Dimensions: 2,400mm x 1,200mm x 81mm
  • SKU: 81mm K110 PLUS
  • Product code: P1-2520
  • MPN: 81mm Kingspan K110 PLUS

Options available

81mm Kooltherm® K110 PLUS comprising a premium performance phenolic insulation bonded to impact resistant building board with a glass tissue facing on its inner face and a composite foil on its outer face.

The insulation core of Kooltherm K110 PLUS has a thermal conductivity of 0.019W/mK across all thicknesses and 0.35W/mK for the building board component of Kooltherm K110 PLUS.

K110 Soffit PLUS Insulation Board 81mm provides unrivalled thermal performance and an extremely thin structural ceiling (soffit) construction in both new build and refurbishment projects.

The inner (concealed) facing of Kingspan Kooltherm® K110 PLUS Insulation Board is a glass tissue based facing, autohesively bonded to the insulation core during manufacture. 

The outer (exposed) facing of Kingspan Kooltherm® K110 PLUS Soffit Insulation Board is a 6mm thick, A1 Euroclass Fire Rated building board (decorative finish can be applied).

Kingspan Kooltherm K110 PLUS Soffit Board achieves Fire Classification of Euroclass B-s1,d0 of the outer (exposed) 6mm building board and Euroclass C-s2,d0 for the phenolic core.

The compressive strength of Kingspan K110 Soffit PLUS typically exceeds 100 kPa, when tested to BS EN 826: 2013 (Thermal insulating products for building applications & Determination of compression behaviour).

If correctly installed, Kingspan Kooltherm® K110 PLUS can have an indefinite life, its durability depends on the supporting structure and the conditions of its use.




Thickness: 81mm

Width: 1200mm

Length: 2400mm

Pack Quantity: 9

Board Coverage: 2.88m²

Pack Coverage: 25.92m²

Profile: Square Edge

R-Value: 3.90m2K/W

Thermal Conductivity: 0.019W/mK (insulation core)

Thermal Conductivity: 0.35W/mK (building board)

Compressive Strength: >100 (kPa)

Reaction to Fire: Euroclass B-s1, d0

Material: Rigid thermoset phenolic insulation

Facings: glass tissue and impact resistant building board

Fire Classification: Euroclass C-s2,d0 and B-s1,d0


Kingspan Kooltherm K110 PLUS Features:

 · One of the thinnest commonly used insulation for soffits.

 · K110 allows U-values to be reached with minimal thickness.

 · Impact resistant building board for an improved finish.

 · Quick installation means you can save on labour costs.

 · Easy to handle for efficient installation.

 · Advanced insulation board with an unrivalled thermal conductivity of 0.019 W/mK.

 · Ideal for both new build and refurbishment projects.

 · Manufactured to the highest standards.

 · Unaffected by air infiltration.

 · Resistant to the passage of water vapour.

 · Premium non-deleterious material.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

*Special Product - Non returnable cancelable.

Board covarage 25.92 m2
Compressive Strength >100 (kPa)
Length 2400mm
Material Rigid thermoset phenolic insulation
Pack Coverage 25.92m2
Pack Quantity 9 boards
Profile Square Edge
R-Value 3.90m2K/W
Size 81mm x 1200mm x 2400mm
Thermal Conductivity 0.019W/mK
Thickness 81mm
Weight/m2 12.68kg
Width 1200mm
Fire Classification Euroclass B-s1, d0 and C-s1, d0
Coverage 2.88m² / board
Finish Glass tissue and impact resistant building board
Quantity 9 sheets
Application Temperature from +5 °C to +25 °C
Shipping method Articulated Vehicle ǀ Courier
Applications Insulation for structural ceilings (soffits)
BBA Certified Yes, no. 16/5299
Vapour Control Layer Yes, build in
ETA Notification Yes
Features Soffit insulation board with an impact resistant building panel
Manufacturer Kingspan Kooltherm®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
81mm K110 PLUS Kingspan Kooltherm Soffit Board (pack of 9)
£ 1,398.90