Home · Products · Reflectiva Gold
Reflectiva Gold
Reflective thermal insulation membrane, with aluminium on both faces.
Technical content: Bogdan Ivănescu, graduate engineer, PhD candidate at the Technical University of Cluj-Napoca · updated on 16.10.2026
Where to buy Reflectiva Gold →
Benefits
It stops heat transfer by radiation and acts as a vapour barrier. It is installed from the interior, beneath the rafters, over the insulation between them, with the joints sealed with Power Tape.
Where it is used
Applications for Reflectiva Gold
Select the part of the house you wish to insulate.
50 years
Commercial durability warranty, with GARAN certificate.
Calculate the material requirements for your house
Technical data
From the technical data sheet
95–97%Thermal radiation reflectivityReflectivity: the proportion of the radiant heat reaching the foil that is sent back. What it means →
0.05EmissivityprEN 15976Emissivity: an emissivity of 0.05 means that the aluminium face radiates only 5% of the heat that an ordinary surface would radiate, and therefore does not give off heat by radiation. The lower the value, the better. What it means →
190 mWater vapour diffusion resistance, SdEN 13859-1Sd (m): the degree to which the membrane resists the passage of water vapour, expressed as an equivalent air-layer thickness; high Sd = vapour barrier, low Sd = diffusion membrane, which allows vapour to escape. What it means →
10 mmTotal thicknessEN 823
12 m²Roll of 1.20 × 10 mEN 1848-2
VOC-freeVolatile organic compounds
The sample pack
See and touch the products before ordering
The Isoflect sample pack contains samples of the reflective membranes and of Wolle wool insulation, so that you can compare the materials at home or on site.