OVER-FOIL 2L-2

OVER-FOIL 2L-2 of OVER-ALL S.‎r.‎l.‎ is a heat-reflective insulation material that possesses thermal and acoustic insulation characteristics of absolute importance and allows the realisation, with a single product, of structures capable of satisfying the regulations in force regarding both thermal insulation and acoustic insulation.‎ OVER-FOIL 2L-2 is an insulation in rolls with absolutely exclusive performance that cannot be compared to that of other types of insulation, which depend directly on the thickness to exert their insulating function.‎ Inserted inside an air gap, it reflects, without absorbing it, most of the radiant energy that strikes it, increasing the insulating power of the gap itself by more than 4 times.‎ Applications Reflective thermal insulation and perfect vapour barrier in roofs, walls and floors in residential, commercial and industrial applications.‎ Advantages - Excellent thermal insulation value and guaranteed comfort; thanks to the reflective surfaces, it cancels out solar radiation with great benefit for the inhabitants of high floor units.‎ - Excellent soundproofing value.‎ - Great energy saving; by reflecting heat inside the room, it allows it to be brought up to temperature quickly in winter and in summer (if the room is air-conditioned).‎ - 100% vapour and water barrier.‎ - Easy and pleasant to install, no special tools are required for installation.‎ - Significant indirect savings in storage, warehousing, transport, handling on site and installation performance.‎ COMPOSITION Double inert air bubble sandwiched between layers of polyethylene covered, on both faces, with a pure aluminium foil protected by a polyethylene film.‎ TECHNICAL DATA Thickness: app.‎ 6.‎5 mm Roll height: 120 cm Roll length: 25 m Roll development: 30 sqm Weight: 340 g/sqm Packaging: per roll Colour: aluminium Reflective insulation possesses unique thermal-acoustic insulation characteristics of absolute importance; specifically, OVER-FOIL 2L-2, enjoys thermal and acoustic insulation certifications that fully comply with both law 10/91 and 447/95.‎ Noise is a very common type of environmental pollution in urban realities.‎ It is therefore necessary to provide adequate acoustic insulation of the building envelope according to the requirements of law 447 of 1995.‎ OVER-FOIL 2L-2 in wall " High thermal insulation value Certified thermal resistance of OVER-FOIL 2L-2 in 2 cm air gap only: R = 1.‎49 ± 0.‎02 m²K/W (test no.‎ 184939 of 29/06/04 carried out by Istituto Giordano spa) " High sound insulation value in wall Soundproofing power according to ISO 140/3 and ISO 717/1 of the structure on the side insulated with OVER-FOIL 2L-2: Rw = 54,0 dB (test no.‎ 187849 of 27/09/04 performed by Istituto Giordano spa) OVER-FOIL 2L-2 under floor " High acoustic insulation value under floor Evaluation index of the normalised impact sound level according to UNI EN ISO 717/2and UNI EN ISO 140/6: Improvement due to OVER-FOIL 2L-2 = 33 dB (test n°0101/DC/ACU/04 dated21/12/04 performed by C.‎S.‎I.‎ spa)