Product range

BREEAM A Certified Environmental Kingspan Roof Insulation


Thermaroof TR27 is part of the Kingspan roof insulation range and is compatible with most green roofing systems as well as most bitumen based and mastic asphalt waterproofing systems. Boasting thermal conductivity levels as low as 0.024 W/m.K, Thermaroof TR27 is also resistant to the passage of water vapour and boasts a BRE Environmental Profiles Methodology Green Guide A rating as a sustainable, energy-saving Kingspan roof insulation product.

Read more
Make Product Inquiry
products benefits:

Thermal conductivity level as low as 0.024 W/m.K

BREEAM Grade A Green Guide Summary

Water vapour resistant

Compatible with most green roofing and bitumen/mastic asphalt waterproofing systems

Tech info:

  • Length

    1.2m; 2.4m

  • Width

    0.6m; 1.2m

  • Thermal Conductivity - <80mm; 80-119mm; >120mm

    0.026W/m.K; 0.025W/m.K; 0.024W/m.K

  • Concrete Deck - Insulation Thickness; U-value

    100+120(mm); 0.10W/m2.K

  • Timber Deck - Insulation Thickness; U-value

    100+120(mm); 0.10W/m2.K

  • Metal Deck - Insulation Thickness; U-value

    110+120(mm); 0.10W/m2.K

  • Extensive Green Roof Covering - Insulation Thickness; U-value

    110+120(mm); 0.10W/m2.K

  • Semi-Intensive Green Roof Covering - Insulation Thickness; U-value

    100+120(mm); 0.10W/m2.K

  • Full Information:

    Check out the full
    datasheet available in
    the Downloads section!

More Info

Fire Performance
Kingspan Thermaroof® TR27, when incorporated in a roofing system, subjected to the external roof exposure testing, specified in the table below, can achieve the results shown. However performance is reliant on the roof covering, therefore for further details please contact your roofing

Compressive Strength
The compressive strength of Kingspan Thermaroof ® TR27 LPC/FM typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 2013 (Thermal insulating products for building applications. Determination of compression behaviour).

Water Vapour Resistivity
The product typically achieves a resistivity greater than 300 MN.s/g.m, when tested in accordance with BS / I.S. EN 12086: 2013 (Thermal insulating products for building applications Determination of water vapour transmission properties). Kingspan Thermaroof ® TR27 LPC/FM should always be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ on page 8).

If correctly installed, Kingspan Thermaroof ® TR27 LPC/FM can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Resistance to Solvents, Fungi & Rodents
The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent-based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used. The insulation core and facings used in the manufacture of Kingspan Thermaroof ® TR27 LPC/FM resist attack by mould and microbial growth, and do not provide any food value to vermin.