Kingspan Insulation Kooltherm K108 phenolic partial fill cavity wall board Kingspan Insulation

Kingspan Kooltherm K108

Premium performance rigid Phenolic partial-fill cavity wall insulation board

Replaces Kingspan Kooltherm K8.

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

Low emissivity foil facings significantly increase the thermal performance of the cavity.

Boards are designed to fit easily with standard brick and block dimensions allow the insertion of wall ties at appropriate spacing.

Premium performance rigid thermoset fibre-free phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Unaffected by air infiltration. Resists moisture penetration by allowing a clear cavity to be maintained.

Thicknesses and Availability:

Available in most popular thicknesses from the manufacturer; short lead-times apply as we may need to get the products in from Kingspan before delivering to site.

This Kooltherm Range includes the following readily available product thicknesses: 50mm, 60mm, 75mm and 100mm.

The following thicknesses are manufactured to order and may have minimum order requirements: 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 70mm, 80mm, 90mm, 110mm, 120mm, 130mm, 140mm and 150mm.


Product Information

General information about Kingspan Kooltherm K108

Product Application

Partial-fill cavity wall insulating board

Kingspans premium performance 'lower-lambda' value phenolic foam board, Kooltherm K108, is suitable for use in partial-fill cavity wall applications.

Product Make-up

Core

Kingspan Kooltherm K108 Cavity Board is a premium performance rigid thermoset fibre-free phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)

Facings

Faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture

Product Properties

Thermal Conductivity 0.018 W/m·K W/m·K
Compressive Strength 120 kPa at 10% compression BS EN 826: 2013
Nominal Density 35 kg/m³
Board Length 1.2m
Board Width 0.45m
Board Edge Square

Product Prices

Buy Kingspan Kooltherm K108

The prices and quantity discounts below are 'per pack' rates. Packs contain multiple boards... 10 x 0.45x1.2m = 5.4m² - in this instance, there are 10 x boards in a pack where each board is 0.45m x 1.2m providing a total coverage of 5.4m² per pack.

Rarely requested product sourced directly from manufacturer. Kingspan K108 50mm, 10 x 0.45x1.2m = 5.4m² - ranging from £16.05 to £16.79 per m²

1 plus packs @ £16.79 per m² / £9.07 per board = £90.69 (£108.83 inc-VAT) per pack
3 plus packs @ £16.64 per m² / £8.99 per board = £89.88 (£107.86 inc-VAT) per pack
5 plus packs @ £16.50 per m² / £8.91 per board = £89.08 (£106.90 inc-VAT) per pack
7 plus packs @ £16.35 per m² / £8.83 per board = £88.28 (£105.94 inc-VAT) per pack
9 plus packs @ £16.20 per m² / £8.75 per board = £87.48 (£104.98 inc-VAT) per pack
11 plus packs @ £16.05 per m² / £8.67 per board = £86.67 (£104.00 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Kingspan K108 60mm, 8 x 0.45x1.2m = 4.32m² - ranging from £19.36 to £20.25 per m²

1 plus packs @ £20.25 per m² / £10.94 per board = £87.49 (£104.99 inc-VAT) per pack
3 plus packs @ £20.07 per m² / £10.84 per board = £86.72 (£104.06 inc-VAT) per pack
5 plus packs @ £19.89 per m² / £10.74 per board = £85.94 (£103.13 inc-VAT) per pack
7 plus packs @ £19.72 per m² / £10.65 per board = £85.17 (£102.20 inc-VAT) per pack
9 plus packs @ £19.53 per m² / £10.55 per board = £84.39 (£101.27 inc-VAT) per pack
11 plus packs @ £19.36 per m² / £10.45 per board = £83.62 (£100.34 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Kingspan K108 75mm, 6 x 0.45x1.2m = 3.24m² - ranging from £23.88 to £24.99 per m²

1 plus packs @ £24.99 per m² / £13.49 per board = £80.96 (£97.15 inc-VAT) per pack
4 plus packs @ £24.77 per m² / £13.37 per board = £80.24 (£96.29 inc-VAT) per pack
7 plus packs @ £24.55 per m² / £13.26 per board = £79.53 (£95.44 inc-VAT) per pack
10 plus packs @ £24.32 per m² / £13.14 per board = £78.81 (£94.57 inc-VAT) per pack
13 plus packs @ £24.10 per m² / £13.02 per board = £78.09 (£93.71 inc-VAT) per pack
16 plus packs @ £23.88 per m² / £12.90 per board = £77.38 (£92.86 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Kingspan K108 100mm, 5 x 0.45x1.2m = 2.7m² - ranging from £31.17 to £32.62 per m²

1 plus packs @ £32.62 per m² / £17.61 per board = £88.07 (£105.68 inc-VAT) per pack
4 plus packs @ £32.33 per m² / £17.46 per board = £87.29 (£104.75 inc-VAT) per pack
7 plus packs @ £32.04 per m² / £17.30 per board = £86.51 (£103.81 inc-VAT) per pack
10 plus packs @ £31.75 per m² / £17.15 per board = £85.73 (£102.88 inc-VAT) per pack
13 plus packs @ £31.46 per m² / £16.99 per board = £84.95 (£101.94 inc-VAT) per pack
16 plus packs @ £31.17 per m² / £16.83 per board = £84.17 (£101.00 inc-VAT) per pack

Less popular product commonly available at selected depots. Bostik Idenden T303 tape, 100mm x 50m = 50lm - ranging from £0.12 to £0.12 per lm

1 plus rolls @ £0.12 per lm = £6.22 (£7.46 inc-VAT) per roll
5 plus rolls @ £0.12 per lm = £6.16 (£7.39 inc-VAT) per roll
10 plus rolls @ £0.12 per lm = £6.11 (£7.33 inc-VAT) per roll
15 plus rolls @ £0.12 per lm = £6.05 (£7.26 inc-VAT) per roll
20 plus rolls @ £0.12 per lm = £6.00 (£7.20 inc-VAT) per roll
25 plus rolls @ £0.12 per lm = £5.94 (£7.13 inc-VAT) per roll

Limited stock of the most popular boards sizes may be held at some of our larger depots.

Where products need to be brought in from Kingspan, please allow approx. 1 week for delivery on stocked items (highlighted in green below in the properties section) and up to 3 weeks on made to order thicknesses. While Kingspan keep the majority of the popular thicknesses in stock, less popular thicknesses may carry a minimum order level.

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 K108 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 K108 25mm 25mm 1.35 m²K/W 1.09 kg/m²
Kingspan K108 40mm 40mm 2.20 m²K/W 1.61 kg/m²
Kingspan K108 50mm 50mm 2.75 m²K/W 1.96 kg/m²
Kingspan K108 60mm 60mm 3.30 m²K/W 2.31 kg/m²
Kingspan K108 70mm 70mm 3.85 m²K/W 2.66 kg/m²
Kingspan K108 75mm 75mm 4.15 m²K/W 2.84 kg/m²
Kingspan K108 80mm 80mm 4.40 m²K/W 3.01 kg/m²
Kingspan K108 90mm 90mm 5.00 m²K/W 3.36 kg/m²
Kingspan K108 100mm 100mm 5.55 m²K/W 3.71 kg/m²
Kingspan K108 110mm 110mm 6.10 m²K/W 4.06 kg/m²
Kingspan K108 120mm 120mm 6.65 m²K/W 4.41 kg/m²

Product Certificates

Please visit the Kingspan website for product certificates.

National BIM Library

Kingspan Videos

How to install insulation in a partial fill cavity

Cavity Wall (Partial Fill)

Residual Cavity
  • A minimum 25 mm residual cavity width is recommended between the insulation and the outer leaf for wall heights up to 12 metres. A minimum 50 mm residual cavity width is recommended for wall heights greater than 12 metres up to and including 25 metres.
  • Installation with Solid Concrete floors
  • The first row of wall ties are installed in the inner leaf at 600 mm horizontal centres a minimum of one course of blockwork below the damp proof course or 150 mm (for the UK) and 225 mm (for the Republic of Ireland) below the top surface of the ground floor perimeter insulation upstand whichever is the lower.
  • Installation with Suspended timber floors
  • The first row of wall ties are installed in the inner leaf at 600 mm horizontal centres a minimum of 200 mm below the top surface of the ground floor perimeter insulation upstand.
  • General Installation guides
  • Kingspan Kooltherm K108 Cavity Board is normally held in position by the wall ties used to tie the two skins of masonry together.
  • Wall ties should include a retaining disc / clip and be of the double drip type, installed drip downward.
  • Continue constructing the inner leaf up to the next wall tie course (450 mm above the rst – usually 2 block courses).
  • The next course of wall ties is positioned at the usual 900 mm horizontal centres in the UK and 750 mm horizontal centres in Ireland.
  • The next course of blockwork is installed to secure the ties.
  • The first row of insulation boards should now be installed between the two rows of wall ties, ensuring each insulation board is retained tight against the inner leaf and joints are lightly butted.
  • Each board should be secured at a minimum of three points. Additional ties may also be required to satisfy the structural requirements of BS EN 845-1: 2013, BS EN 1996-1-1: 2005, BS EN 1996-2: 2006, BS EN 1996-3: 2006, PD 6697: 2010 and / or to ensure adequate retention of boards or cut pieces.
  • The outer leaf is then built up to the level of the top of the boards and the process is repeated.
  • When insulating a gable, insulation boards should be continued 250 mm beyond the height of the top story ceiling and a cavity tray installed above the insulation.
  • Excess Mortar
  • After raising each section of inner leaf, before installation of the insulation board, excess mortar should be removed and mortar droppings cleaned from exposed edges of the installed insulation boards.
  • Use of a cavity batten or cavity board is recommended to protect board edges and maintain a clear cavity.
  • Kingspan K108 Block and Block with concrete floor
    Kingspan K108 Block and Block with concrete floor
    Kingspan K108 Block and Block with suspended floor
    Kingspan K108 Block and Block with suspended floor
    Minimum order level - £175.00 ex-VAT. For further details on Delivery Charges and Minimum Order levels, please Click Here