Kingspan Insulation Thermaroof TR24 flat roof board Kingspan Insulation

Kingspan Thermaroof TR24

High performance rigid Polyisocyanurate (PIR) flat roof insulation board

Can be used on flat roofs with partially bonded torch applied multi-layer bituminous waterproofing.

Compatible with majority of torch applied waterproofing systems.

Fibre–free core; manufactured with a blowing agent that has zero ODP and low GWP.

Ideal for new build and refurbishment.

Resistant to the passage of water vapour.

Thicknesses and Availability:

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

This Thermaroof Range includes the following readily available product thicknesses: 120mm and 130mm.

The folllowing thicknesses are manufactured to order: 30mm, 50mm, 80mm, 100mm, 140mm and 150mm; these may carry minimum order levels.

Due to supply challenges from the manufacturers, please allow extended lead times on all PIR boards. Please feel free to contact me to check availability and lead times.

Product Information

General information about Kingspan Thermaroof TR24

Product Application

Flat roof insulating board

Kingspans high performance polyisocyanurate (PIR) foam board, Thermaroof TR24, is suitable for use in flat roofs waterproofed with most torch on applied waterproofing applications.

Product Make-up

Core

The core of Kingspan Thermaroof TR24 is manufactured with Nilflam technology, a high performance fibre–free rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)

Facings

Faced with bitumen coated glass tissue finished with a thermofusible polypropylene fleece on the upper facing while the lower face is a mineralised glass tissue, autohesively bonded to the insulation core during manufacture

Product Properties

Thermal Conductivity 0.027 W/m·K (insulant thickness < 80 mm)
0.025 W/m·K (insulant thickness 80 – 119 mm)
0.024 W/m·K (insulant thickness ≥ 120 mm) W/m·K
Compressive Strength 150 kPa at 10% compression BS EN 826: 2013
Nominal Density 32 kg/m³
Board Length 1.2m
Board Width 0.6m
Board Edge Square
Vapour Resistance > 300 MNs/gm BS / I.S. EN 12086: 2013

Product Prices

Buy Kingspan Thermaroof TR24

The prices and quantity discounts below are 'per pack' rates. Packs contain multiple boards... 4 x 0.6x1.2m = 2.88m² - in this instance, there are 4 x boards in a pack where each board is 0.6m x 1.2m providing a total coverage of 2.88m² per pack.

Availability Undetermined - Special circumstances are involved in the supply of these products. Kingspan TR24 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £11.66 to £12.20 per m²

1 x pack @ £12.20 per m² / £8.78 per board = £52.69 (£63.23 inc-VAT) per pack
2 x packs @ £12.09 per m² / £8.70 per board = £52.22 (£62.66 inc-VAT) per pack
3 x packs @ £11.98 per m² / £8.63 per board = £51.75 (£62.10 inc-VAT) per pack
4 x packs @ £11.87 per m² / £8.55 per board = £51.29 (£61.55 inc-VAT) per pack
5 x packs @ £11.76 per m² / £8.47 per board = £50.82 (£60.98 inc-VAT) per pack
6 x packs @ £11.66 per m² / £8.39 per board = £50.35 (£60.42 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products. Kingspan TR24 80mm, 4 x 0.6x1.2m = 2.88m² - ranging from £16.65 to £17.42 per m²

1 x pack @ £17.42 per m² / £12.54 per board = £50.17 (£60.20 inc-VAT) per pack
2 x packs @ £17.26 per m² / £12.43 per board = £49.72 (£59.66 inc-VAT) per pack
3 x packs @ £17.11 per m² / £12.32 per board = £49.28 (£59.14 inc-VAT) per pack
4 x packs @ £16.95 per m² / £12.21 per board = £48.83 (£58.60 inc-VAT) per pack
5 x packs @ £16.80 per m² / £12.10 per board = £48.39 (£58.07 inc-VAT) per pack
6 x packs @ £16.65 per m² / £11.99 per board = £47.95 (£57.54 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products. Kingspan TR24 100mm, 5 x 0.6x1.2m = 3.6m² - ranging from £19.92 to £20.84 per m²

1 x pack @ £20.84 per m² / £15.01 per board = £75.03 (£90.04 inc-VAT) per pack
2 x packs @ £20.66 per m² / £14.87 per board = £74.36 (£89.23 inc-VAT) per pack
3 x packs @ £20.47 per m² / £14.74 per board = £73.70 (£88.44 inc-VAT) per pack
4 x packs @ £20.29 per m² / £14.61 per board = £73.03 (£87.64 inc-VAT) per pack
5 x packs @ £20.10 per m² / £14.47 per board = £72.37 (£86.84 inc-VAT) per pack
6 x packs @ £19.92 per m² / £14.34 per board = £71.71 (£86.05 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products. Kingspan TR24 120mm, 4 x 0.6x1.2m = 2.88m² - ranging from £23.16 to £24.23 per m²

1 x pack @ £24.23 per m² / £17.45 per board = £69.78 (£83.74 inc-VAT) per pack
2 x packs @ £24.01 per m² / £17.29 per board = £69.16 (£82.99 inc-VAT) per pack
3 x packs @ £23.80 per m² / £17.14 per board = £68.55 (£82.26 inc-VAT) per pack
4 x packs @ £23.59 per m² / £16.98 per board = £67.93 (£81.52 inc-VAT) per pack
5 x packs @ £23.37 per m² / £16.83 per board = £67.31 (£80.77 inc-VAT) per pack
6 x packs @ £23.16 per m² / £16.67 per board = £66.69 (£80.03 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products. Kingspan TR24 130mm, 4 x 0.6x1.2m = 2.88m² - ranging from £25.47 to £26.65 per m²

1 x pack @ £26.65 per m² / £19.19 per board = £76.75 (£92.10 inc-VAT) per pack
2 x packs @ £26.42 per m² / £19.02 per board = £76.08 (£91.30 inc-VAT) per pack
3 x packs @ £26.18 per m² / £18.85 per board = £75.40 (£90.48 inc-VAT) per pack
4 x packs @ £25.94 per m² / £18.68 per board = £74.72 (£89.66 inc-VAT) per pack
5 x packs @ £25.71 per m² / £18.51 per board = £74.04 (£88.85 inc-VAT) per pack
6 x packs @ £25.47 per m² / £18.34 per board = £73.36 (£88.03 inc-VAT) per pack

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 TR24 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 TR24 30mm 30mm 1.10 m²K/W 1.93 kg/m²
Kingspan TR24 50mm 50mm 1.85 m²K/W 2.60 kg/m²
Kingspan TR24 80mm 80mm 3.20 m²K/W 2.88 kg/m²
Kingspan TR24 100mm 100mm 4.00 m²K/W 4.27 kg/m²
Kingspan TR24 120mm 120mm 5.00 m²K/W 4.94 kg/m²
Kingspan TR24 130mm 130mm 5.40 m²K/W 5.28 kg/m²
Kingspan TR24 140mm 140mm 5.80 m²K/W 5.61 kg/m²
Kingspan TR24 150mm 150mm 6.25 m²K/W 5.95 kg/m²

Standards & Approval

Kingspan Thermaroof TR24 is manufactured to the highest standards under a management system certified to ISO 9001: 2015 (Quality Management Systems Requirements), ISO 14001: 2015 (Environmental Management Systems Requirements), ISO 45001: 2018: 2007 (Occupational Health and Safety Management Systems Requirements) and ISO 50001: 2018 (Energy Management System Requirements with Guidance for Use).

The use of Kingspan Thermaroof TR24 is covered by LABC Registered Details Certificate No. EWS548E. An LABC Registered Detail can significantly reduce the time and costs associated with a construction project. Contact the Kingspan Insulation Technical Service Department for further information.

Flat Roof Installation

Over Metal Deck specific
  • Metal decks should be clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.
  • If using a sealed metal deck there is no requirement for a separate vapour control layer.
  • If the metal deck is not sealed, and the insulation boards are to be bonded down, in order to ensure an adequate bond between the metal deck and the vapour control layer, the metal deck should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.
  • If the metal deck is not sealed, and the insulation boards are to be mechanically fixed, the vapour control layer should be loose–laid.
  • Over Concrete Deck specific
  • Concrete decks should be clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.
  • If the insulation boards are to be bonded down, in order to ensure an adequate bond between the vapour control layer and the concrete deck, the concrete or screeded surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.
  • If the insulation boards are to be mechanically fixed, the vapour control layer should be loose–laid.
  • Over Existing Flat Roof specific
  • The existing waterproofing membrane surface should be clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.
  • Where the existing waterproofing membrane is not fit for purpose as a vapour control layer, and the new insulation boards are to be bonded down, a separate vapour control layer should be bonded to it with hot bitumen, or suitable alternative proprietary adhesive system. If the insulation boards are to be mechanically fixed, the vapour control layer should be loose–laid.
  • General guides for Flat Roof Installation
  • Where one run of the specified vapour control layer laps another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.
  • Turn up the vapour control layer at the edge of the roof to a height appropriate to the specified new waterproofing membrane.
  • Boards of Kingspan Thermaroof TR24 should be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.
  • Alternatively, the insulation boards should be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’ below).
  • Insulation boards should always be laid break–bonded, either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.
  • Roof–light or ventilator kerbs etc. should always insulated with the same thickness of Kingspan Thermaroof TR24 as the general roof area.
  • A 30 mm thick Kingspan Thermaroof TR24 upstand should be used around the perimeter of the roof on the internal façade of parapets.
  • A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation.
  • The waterproofing membrane is installed in accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.
  • Mechanical Fixings
  • The number of mechanical fixings required to fix Kingspan Thermaroof TR24 will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned along with the deck type.
  • A minimum of 4 fixings are required to secure 1.2 x 0.6 m boards of Kingspan Thermaroof TR24 to the deck.
  • The requirement for additional fixings should be assessed in accordance with BS / I.S. EN 1991−1.4: 2005 + A1: 2010 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions).
  • Mechanical fixings must be arranged in an even pattern.
  • Fasteners at insulation board edges must be located > 50 and < 150 mm from edges and corners of the board and not overlap board joints.
  • Each fixing should incorporate a square or circular plate washer (min. 50 x 50 mm or 50 mm diameter).
  • If two layers of insulation are to be installed, the base layer should be mechanically fixed with minimum 1 no. fixing in the centre of the insulation board before fixing the top layer as described above.
  • Kingspan TR24 on Timber Deck
    Kingspan TR24 on a timber deck with plasterboard ceiling
    Kingspan TR24 on Metal Deck
    Kingspan TR24 on a metal deck with no ceiling
    Minimum order level - £175.00 ex-VAT. For further details on Delivery Charges and Minimum Order levels, please Click Here