Kingspan Insulation Kooltherm K110 Plus phenolic soffit board Kingspan Insulation

Kingspan Kooltherm K110 Plus

Premium performance rigid Phenolic soffit lining insulation with non-combustable building board

Replaces Kingspan Kooltherm K10.

New lower Lamba Value (Thermal Conductivity) 0.018 W/mK... The most thermally efficient commonly used insulating board.

Bonded to an impact restitant non-combustable building board.

Ideal for new build and refurbishment. Easy to handle and quick to install.

Unaffected by air infiltration. Resistant to the passage of water vapour.

Thicknesses and Availability:

The following thicknesses are manufactured to order and may have minimum order requirements: 71mm, 76mm, 81mm, 86mm, 91mm, 96mm, 106mm, 116mm and 126mm.

Product Information

General information about Kingspan Kooltherm K110 Plus

Product Application

Structural ceiling (soffit) insulating board

Kingspans premium performance ‘lower-lambda’ value phenolic foam insulation board, Kooltherm K110 Plus, is suitable for semi-exposed concrete floor decks in new and existing car parks, storage areas, loading bays and similar areas beneath habitable domestic buildings.

Product Make-up


The core of Kingspan Kooltherm K110 Plus Soffit Board is a premium performance fibre-free rigid thermoset phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)


Faced with a 6 mm A1 Euroclass building board on the outer facing while the inner face is a glass tissue based facing, autohesively bonded to the insulation core during manufacture

Product Properties

Thermal Conductivity 0.018 W/m·K 0.27 W/m·K for the building board
Compressive Strength 100 kPa at 10% compression BS / I.S. EN 826: 2013
Board Length 2.4m
Board Width 1.2m
Board Edge Square
Vapour Resistance > 41.6 MNs/gm BS EN 12086: 1997 / I.S. EN 12086: 1998

Product Prices

Buy Kingspan Kooltherm K110 Plus

Priced on Application: Kingspan K110 Plus is a made to order product. Please contact us with your requirements, so we can check availability, lead times and costs. These products may have minimum order requirements for Kingspan to manufacture them.

Made to order products. Minimum order levels may apply.

Kingspan reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.

Please observe the 'Star Rating' indicators to assess availability.
Product Availability Excellent Generally 1 or 2 days for delivery
Product Availability Good Generally 1 to 5 days for delivery
Product Availability Fair Generally 5 to 10 days for delivery
Product Availability Poor Generally 5 to 15 days for delivery
Product Availability Undetermined Please call to check availability and approximate lead times

Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations

Product Performance and Guides

Product Performance, Manufacturer Certification, Downloads, and Installation Guides

Thermal Resistance

While we have provided Thermal Resistance values for all thicknesses on the Kingspan K110 Plus datasheet, some thicknesses may not be readily available.

Items highlighted in green are generally held in stock by Kingspan.

Product Thickness Thermal Resistance kg/m²
Kingspan K110 Plus 66mm 66mm 3.35 m²K/W 10.65 kg/m²
Kingspan K110 Plus 71mm 71mm 3.60 m²K/W 10.89 kg/m²
Kingspan K110 Plus 76mm 76mm 3.90 m²K/W 11.12 kg/m²
Kingspan K110 Plus 81mm 81mm 4.15 m²K/W 11.46 kg/m²
Kingspan K110 Plus 86mm 86mm 4.45 m²K/W 11.67 kg/m²
Kingspan K110 Plus 91mm 91mm 4.70 m²K/W 11.90 kg/m²
Kingspan K110 Plus 96mm 96mm 5.00 m²K/W 11.94 kg/m²
Kingspan K110 Plus 106mm 106mm 5.55 m²K/W 12.51 kg/m²
Kingspan K110 Plus 116mm 116mm 6.10 m²K/W 12.99 kg/m²
Kingspan K110 Plus 126mm 126mm 6.65 m²K/W 13.43 kg/m²

Product Certificates

Please visit the Kingspan website for product certificates.

Kingspan Videos

How to install soffit insulation

Soffit Installation

Direct Fix
  • Insulation boards should be installed break-bonded with joints lightly butted.
  • The number of mechanical fixings required to fix Kingspan Kooltherm K110 Plus Soffit Board will vary with the geographical location of the building, the local topography, the height and width of the soffit concerned and the soffit construction.
  • A minimum of 11 mechanical fixings, with a minimum head diameter of 35mm, are required to secure the insulation board to the soffit.
  • Where insulation boards may be subject to external wind pressure, the requirement of additional fixings should be assessed.
  • The fixings should be evenly distributed over the whole area of the board and must offer a minimum 40mm penetration into a solid substrate.
  • Fixings at board edges must be located > 50mm and < 150mm from edges and corners of the board and not overlap board joints.
  • Kingspan K110 Plus fixed directly to Concrete Soffit
    Kingspan K110 Plus fixed directly to Concrete Soffit
    Minimum order level - £175.00 ex-VAT. For further details on Delivery Charges and Minimum Order levels, please Click Here