E-Therm Ultra

E-Therm Ultra Aerogel Flooring


E-Therm Ultra Main product

  • Highest performing retrofit flooring insulation product available on the market
  • Can be cut to size on site
  • Supplied ready to accept any finish
  • Easy to Handle and Install
  • No wet screeds required

Heat loss through a solid floor can cost you money and drastically reduce the energy efficiency of your home.Many older homes will have ground floors made from either uninsulated or poorly insulated solid concrete.

We can treat these solid floors with E-THERM ULTRA to increase comfort levels and too save MoneyE-THERM ULTRA is the highest performing floor insulation panel, specifically designed for solid floors where space is at a premium, and excavating is not an option.

floor imageBy using the E-THERM ULTRA on a previously poorly uninsulated garage floor the system is thin enough that it still matches in with a new tiled floor located in the original house zone.The panel consists of a 3mm high impact layer bonded to 10mm Aerogel insulation layers and then wrapped in a highly durable and robust vapour control layer.

No special tools or precautions are required when fitting the panels and can be cut to the required shapes and size.Domestic furniture can placed on top of the E-THERM ULTRA which is compatible with most floor finishes and under-floor heating systems. It is supplied in a pre-formed panel to allow for fast installation.

Thermal Performance

Thermal Performance U-Value Before Insulation  P/A  10mm  20mm 
0.36  0.2 0.27 0.22
0.42  0.25 0.3 0.25
0.48  0.3 0.34 0.27
0.53  0.35 0.37 0.29
0.58  0.4 0.4 0.3
0.67  0.5 0.44 0.33
0.75  0.6 0.48 0.35
0.82  0.7 0.51 0.36

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. The use of carbons steel fasteners of cross sectional area 4 mm2 has been assumed at a density of 16.7 per m2.

E Therm Ultra floor insulationNB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored.

NB The figures quoted are for guidance only. A detailed U–value calculation and a condensation risk analysis should be completed for each project.


The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U-value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method), and using the conventions set out in BR443 (Conventions for U−value calculations). They are valid for the constructions shown in the details immediately above each table.

These examples are based on the use of 3 mm High Impact board bonded to 10mm,20mm Aerogel which is subsequently wrapped in a highly durable and robust vapour control layer.

Laying Aerogel Flooring

Once the floor is level, clean and free of loose debris prepare the first board.

Place the E-THERM ULTRA panel upside down on a clean flat surface. Apply a bead of MagnaSeal around the perimeter of the panel. (Approx. 50mm in from the edge) and 2 beads of MagnaSeal diagonally across the panel to form an X pattern.

floor layout4-Layout1The first board should be laid in the corner of the room with the MagnaSeal facing down and the high impact side facing up. The short edge of the panel (A) should align with the short side of the floor (1) and the long edge of the panel (B) should align with the long side of the floor (2)

The board may need to be altered if the corner of the room is not totally square.

  •  Measure and Mark the panel to the size required.
  •  Cut across the “panel using a handsaw or circular Saw.
  •  Reseal the cut edge with the Alfa Flex power tape.
  • Allow a 3-5mm expansion gap around the perimeter of the floor.
  •  Continue laying the boards in this manner until the first row is complete. Cut the final board if required
  •  Use the offcut from the final board in the first row to start the second row.
  • Minimum size of stagger in joints is 150mm
  • Minimum size of offcut to use should be no less than 150mm x 1200mm
  •  Continue the step’s above until the floor area is covered. Cut the final row of panels if required

 Using Alfa Flex power tape seal all junctions between E-THERM ULTRA Floor Panels and around the perimeter of the floor. 

Types of Flooring

E-Therm Ultra carpetCarpets & Vinyls 

By using Instalay’s self-adhesive underlay, carpets can be securely fitted without the need for glue and edge fixed carpet grippers. The high impact layer of the E-THERM ULTRA’’s panel provides protection for the insulation layer against point loadings like heavy furniture and bedding.

E-Therm Ultra LaminateLaminate & Floating Floors


Floating floors can be laid on top of the E-THERM ULTRA panels, however for best results we would recommend using a high quality underlay, preferably Instalay adhesively fitted floors perform better for a longer period of time.

E-Therm Ultra Tiles


Ceramic Tiles 

To install ceramic tiles on top of the E-THERM ULTRA flooring a 6mm tile backer board must be used on top of the floor to provide a stable fixing layer for the tiles.

The 6mm tile backer board is installed by fixing plastic fixings through the E-THERM ULTRA to eliminate deflection making sure that the joints of the E-THERM ULTRA and the tile backer board don’t overlap.

Once this is complete the tiles can be installed using a flexible tile adhesive and grouted as normal to finish.


SkirtingE-THERM ULTRA skirting has been developed for when there is no internal insulation on the external walls of the property.

If the E-THERM ULTRA aerogel flooring panel is being used with either external or cavity wall insulation then it is highly recommended that the aerogel insulation is returned up the inside edge of the external wall to prevent cold bridging at the junction.

E-THERM ULTRA is supplied as a two part product, one being the foil wrapped aerogel and the other being the profiled softwood skirting.

This upstand can be achieved by use of our E-THERM ULTRA Skirting.

Product DetailsStandard Dimensions


13mm x 1220mmx 605mm

23mmx1220mm x 605mm



3mm x 1000mm x 15m Rolls


Tiling Board & Fixings

Tile Backer board

6mm x 1200mm x 2400mm

20mmx 40mm Plastic Insulation Pins



94mm x 16mm x 3m Softwood profiled skirting

75mm x 6mm Foil wrapped aerogel insulation 

E-THERM ULTRA Aerogel Flooring is available throughout Ireland and the UK please contact us for orders.

Handling and Storage 

  • Packs E-THERM ULTRA Aerogel Flooring are delivered to site wrapped in polythene.
  • Store panels in original packaging until ready to use

Health and Safety 

  • The product is chemically inert and safe to use.

For Further Information 

To discuss insulation in your home call us on: +44 (0)28 4177 3314

Email: info@enviroformsolutions.com

Web: http://www.enviroformsolutions.com