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Warm Roof Systems

Warm roof systems for flat roofs are assemblies where the thermal insulation is installed on top of the roof structure. This keeps the structural decking, usually constructed from timber, steel or concrete, at the same temperature levels as the internal temperature of the building. There is no need for roof void ventilation and cold bridging through the system is reduced as the insulation is not interrupted by structural support. Warm roof systems can help reduce heat losses and improve the overall energy efficiency of a building.

An air and vapour control layer (AVCL) is required beneath the thermal insulation to restrict the passage of moisture vapour into the structure of the roof and limit the risk of condensation occurring within the roof structure. The finishing layer is a waterproof membrane; either bonded or mechanically fixed, over the insulation layer to offer protection from the elements.

The relatively simple installation makes warm roof systems a popular choice for new build and refurbishment in buildings that require increased insulation levels. The thermal benefits these systems can offer in the UK climate and the cost effectiveness of the solution is attractive for both refurbishment and new build.

What are the benefits of warm roof systems?

  • Greater thermal efficiency can help improve the energy performance of the building
  • The systems can be installed with relative ease over the existing construction deck
  • Reduces thermal bridging
  • No need for roof void ventilation
  • With correct AVCL, warm roof system can be effectively used in areas of high humidity such as swimming pools
  • Cost efficiency

 

Considerations for installation of warm roof systems

  • Provide roof falls using the guidance in BS 6229:2018 and calculate roof drainage provision in accordance with BS EN 12056-3:2000.
  • The potential for increased height requires careful planning of insulation thicknesses, upstand heights and floor/door threshold levels
  • Condensation risk analysis should be undertaken to assess the likelihood of interstitial condensation

 

IKO roof systems and products are manufactured in the UK from responsibly, and where possible, locally sourced materials in order to reduce our carbon footprint and help with the sustainability of your project. The majority of our roofing systems are also BBA certified.

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Why Choose IKO?

If you are wanting a solution that protects the insulation above the deck IKO have a range that will suit both your design and budget.

  • Multiple Products Available to fit your design and budget

  • Life expectancy in excess of 30 years

  • UK Manufacturing

  • UV Stable without Ballast - Light Weight

IKO Armourplan Ballasted System

    Key Benefits to your project
    • Polymeric Single Ply PVC

    • Low maintenance lightweight system

    • 40 year BBA Certificate

    IKO Armourplan Hybrid Roof System

      Key Benefits to your project
      • Polymeric Single Ply PVC

      • Low maintenance lightweight system

      • High UV resistance and a long service life

      IKO Armourplan Warm Roof Adhered System

        Key Benefits to your project
        • Exceptional mechanical properties and product performance

        • Low maintenance lightweight system

        • High UV resistance and a long service life

        IKO Armourplan Warm Roof Mechanical Fixed System

          Key Benefits to your project
          • Exceptional mechanical properties and product performance

          • Low maintenance lightweight system

          • High UV resistance and a long service life

          IKO Britorch APP System – Merchant & Distribution Usage Only 

            Key Benefits to your project
            • Torch Applied – Rapid application and sealing of the laps

            • Granular Mineral Finished Cap Sheet – UV stable.

            • APP Modification – results in a higher softening point, reduces foot marking issues during…

            IKO Britorch SBS System – Merchant & Reseller Usage Only

              Key Benefits to your project
              • Torch Applied – Rapid application and sealing of the laps

              • Granular Mineral Finished Cap Sheet – UV stable

              • SBS Modification – greater flexibility under ambient temperature fluctuations

              IKO Carrara Hybrid System

                Key Benefits to your project
                • Air Care Technology – ingenious mineral finish helps purify harmful gases in the atmosphere

                • Life expectancy in excess of 30 years

                • Patented IKO “Turbo Profile” for a faster and more secure installation

                IKO Carrara Torch-On System

                  Key Benefits to your project
                  • Bituminous Felts
                    Air Care Technology – ingenious mineral finish helps purify harmful gases…

                  • Life expectancy in excess of 30 years

                  • Patented IKO “Turbo Profile” for a faster and more secure installation

                  IKO Hybritech Inverted Roofing System

                    Key Benefits to your project
                    • Cold Applied Liquid

                    • One-component: simple and rapid installation

                    • Solvent-free and odourless

                    IKO Metatech Cold Roofing System

                      Key Benefits to your project
                      • Two-component: extremely fast installation and drying

                      • Sustainable PMMA technology

                      • Installation possible under poor weather conditions

                      IKO Metatech Warm Roofing System

                        Key Benefits to your project
                        • Fast installation: wet-on-wet

                        • Fast curing – fast release

                        • Installation possible under less good weather conditions

                        IKO Permaphalt

                          Key Benefits to your project
                          • Completely Seamless Waterproofing

                          • Conforms to Carbon Zero Standards

                          • BBA approved (Certificate No. 89/2299)

                          IKO Polimar FCS (Fast Curing System) Waterproofing

                            Key Benefits to your project
                            • Cold Liquid
                              Completely Seamless Waterproofing with Vapour Resistivity. Fast Curing Liquid Roofing Waterproofing…

                            • Seamless and secure waterproofing of the most complex upstands with fleece reinforcement

                            • Highly flexible and crack-bridging even at extreme sub-zero temperatures

                            IKO Polimar Liquid Waterproofing System

                              Key Benefits to your project
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                              IKO Protorch System – Merchant & Reseller Usage Only

                                Key Benefits to your project
                                • Classified BROOF(t4) in accordance with BS EN 13501-5: 2005 fire classification, enables unrestricted use…

                                • 5kg per mᄇ – the most robust in its class

                                • IKO Prevent Graphite Fire Wall Technology with self-extinguishing properties

                                IKO Roofgarden Hybrid System

                                  Key Benefits to your project
                                  • Bituminous Felts
                                    Achieves FLL 4-Year Root Penetration Test

                                  • Purpose made roof garden waterproofing cap sheet

                                  • Specifically formulated ‘Anti-Root’ coating

                                  IKO Roofgarden System Torch-On

                                    Key Benefits to your project
                                    • Bituminous Felts
                                      Achieves FLL 4-Year Root Penetration Test

                                    • Purpose made roof garden waterproofing cap sheet

                                    • Specifically formulated ‘Anti-Root’ coating

                                    IKO Roofstar Plus System

                                      Key Benefits to your project
                                      • Mastic Asphalt
                                        Completely Seamless Waterproofing with Vapour Resistivity

                                      • Complies with BS EN 12970:2000

                                      • Enhanced Product Stability Across a Wide Temperature Range

                                      IKO Roofstar System

                                        Key Benefits to your project
                                        • Mastic Asphalt
                                          Completely Seamless Waterproofing

                                        • Fire Performance achieving BS 476: Part 3: FAA

                                        • Completely seamless waterproofing with vapour resistivity

                                        IKO Ruberseal EPDM Warm Roof System

                                          Key Benefits to your project
                                          • Simple and quick to install

                                          • Minimal maintenance

                                          • In roll or pre-fabricated format

                                          IKO Turbo Torch System – Merchant & Reseller Usage Only

                                            Key Benefits to your project
                                            • High performance/rapid installation

                                            • Unique Turbo-Flow SBS modified bitumen coating

                                            • Quick Torch” rapid dispersal backing film

                                            IKO ULTRA Gold 20 Warm Roof Hybrid System

                                              Key Benefits to your project
                                              • Bituminous Felts
                                                BBA certified (91/2671), durability of at least 25 years

                                              • Robust membrane with excellent tensile strength, elongation and tear resistance

                                              • SBS elastomeric bitumen coating (low temperature flexibility -20°C)

                                              IKO ULTRA Life 30 Full Torch-On System

                                                Key Benefits to your project
                                                • Bituminous Felts
                                                  BBA certification (15/5238) – durability with service life in excess of…

                                                • Classified BROOF (t4) in accordance with BS EN 13501-5: 2005 fire classification, enables unrestricted…

                                                • Exceptional mechanical strength and dimensional stability

                                                IKO ULTRA Life 30 Warm Hybrid System

                                                  Key Benefits to your project
                                                  • Bituminous Felts
                                                    BBA certification (15/5238) – durability with service life in excess of…

                                                  • Classified BROOF (t4) in accordance with BS EN 13501-5: 2005 fire classification, enables unrestricted…

                                                  • Exceptional mechanical strength and dimensional stability

                                                  IKO ULTRA Mach Two Warm Roof System

                                                    Key Benefits to your project
                                                    • Bituminous Felts
                                                      Flame-free system, single layer, highly robust membrane

                                                    • BBA certification (00/3760) – durability at least 30 years

                                                    • Superior puncture resistance

                                                    IKO Ultra Prevent 25 Warm Roof Hybrid System

                                                      Key Benefits to your project
                                                      • Bituminous Felts
                                                        Classified BROOF(t4) in accordance with BS EN 13501-5: 2005 fire classification,…

                                                      • BBA certification (91/2671) – durability with service life in excess of 30 years

                                                      • IKO Prevent Graphite Fire Wall Technology with self-extinguishing properties

                                                      IKO ULTRA Prevent Hybrid System

                                                        Key Benefits to your project
                                                        • Bituminous Felts
                                                          Classified BROOF(t4) in accordance with BS EN 13501-5: 2005 fire classification,…

                                                        • IKO Prevent Graphite Fire Wall Technology with self-extinguishing properties

                                                        • Low temperature flexibility down to -30°C

                                                        IKO ULTRA Stick System

                                                          Key Benefits to your project
                                                          • Bituminous Felts
                                                            Prevent Graphite Fire Wall Technology with self-extinguishing properties

                                                          • Classified BROOF(t4) in accordance with BS EN 13501-5: 2005 fire classification

                                                          • Easy installation – self-adhesive/heat welding, no gas torches or hot bitumen required

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