Reflective Foil Insulation

Radiant barriers and reflective insulation work by reflecting radiant heat away from the living space. Radiant barriers are installed in homes--usually in attics--primarily to reduce summer heat gain and reduce cooling costs. The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it. Reflective insulation incorporates radiant barriers--typically highly reflective aluminum foils--into insulation systems that can include a variety of backings, such as Kraft paper, plastic film, polyethylene bubbles, or cardboard, as well as thermal insulation materials.


Heat travels from a warm area to a cool area by a combination of conduction, convection, and radiation. Heat transfer by convection occurs when air is heated, becomes less dense, and rises. Radiant heat travels in a straight line away from any surface and heats anything solid that absorbs its energy. When the sun heats a roof, a large portion of this heat travels by conduction through the roofing materials to the attic side of the roof. A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. To be effective, it must face an air space. A radiant barrier works best when it is perpendicular to the radiant energy striking it. Also, the greater the temperature difference between the sides of the radiant barrier material, the greater the benefits a radiant barrier can offer.

Multi-layer reflective foil insulation systems
  • Reflective foils - usually aluminium foils or plastics membranes laminated or coated with a reflective material.
  • Laminated membranes - composite, flexible materials comprising a series of lamination, which typically include aluminium foil; polyethylene sheet; mineral wool fleece; encapsulated polyethylene sheet (bubble wrap) or polypropylene membranes.
  • Laminated boards - reflective foil laminated to rigid polyurethane, expanded or extruded polystyrene, or mineral wool boards or quilt.
Application
  • Sarking underlay,
  • As an additional layer placed over conventional horizontal roof insulation,
  • Suspended ground floor insulation draped over joists,
  • Wall insulation suspended in vertical cavities,
  • External solid wall insulation,
  • Internal solid wall insulation,
  • External timber frame insulation,
  • Internal timber frame insulation,
  • Insulated wrapping to ducting,

Multi-layer reflective foil insulation is recommended for use in a range of applications; their installation typically relying on the need for an adjoining cavity facing the surface reflective foil. They have a high vapour resistance, so may also function as a vapour control layer.



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30mm Thinsulex TLX Silver Multi-foil Insulation

30mm Thinsulex TLX Silver Multi-foil Insulation

1.2m x 10m - 12m2  show quantity discountsDelivery Time: 2 - 3 days

£83.94 (£100.73 inc VAT)

£7.00/m2 (£8.40/m2 inc VAT)

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30mm TLX Silver Multi-foil is an insulation material comprising outer layers of coated metallised film, laminated to a non-woven polypropylene fabric enclosing the core and welded along both long edges. The core of the products consists of five layers of polyester fibre wadding separated by four met..

£83.94 (£100.73 inc VAT)

£7.00/m2 (£8.40/m2 inc VAT)

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= m2
30mm Alumaflex Multifoil Insulation

30mm Alumaflex Multifoil Insulation

1.2m x 10m (12m2)  show quantity discountsDelivery Time: 2 - 3 days

£87.00 (£104.40 inc VAT)

£7.25/m2 (£8.70/m2 inc VAT)

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30mm Alumaflex Multifoil insulation is a sophisticated multi layer radiant barrier of low emissivity. This product comprises 14 layers where the outer layer is a PET (polyethylene terephthalate) fused to a PE (polyethylene) bubble layer which is then fused to a non-woven polypropylene backing. The c..

£87.00 (£104.40 inc VAT)

£7.25/m2 (£8.70/m2 inc VAT)

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= m2
Reflective Foil Insulation Low-E (5m²).

Reflective Foil Insulation Low-E (5m²).

1.25m x 4m - 5m2 - Free Delivery  show quantity discountsDelivery Time: 2 - 3 days

£42.76 (£51.31 inc VAT)

£8.55/m2 (£10.26/m2 inc VAT)

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Low-E Reflective Foil Insulation is a revolutionary product used in all areas of construction from residential homes, commercial properties right to industrial buildings. It greatly contributes to reducing carbon dioxide emission of your house while saving energy and more importantly money. Low-E is..

£42.76 (£51.31 inc VAT)

£8.55/m2 (£10.26/m2 inc VAT)

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= m2
other lengths
35mm Actis Triso Super 10+ Multi-Foil Insulation

35mm Actis Triso Super 10+ Multi-Foil Insulation

1.6x10m - 16m2  show quantity discountsDelivery Time: 2 - 3 days

£180.00 (£216.00 inc VAT)

£11.25/m2 (£13.50/m2 inc VAT)

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Actis Triso Super 10+ is a thin multi-foil insulation, comprising of even 19 separate layers, including two metallic films with reinforcing mesh, three wadding layers, eight foam layers and six internal reflective films. It has very wide application, but is most suitable for roof and loft insulation..

£180.00 (£216.00 inc VAT)

£11.25/m2 (£13.50/m2 inc VAT)

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= m2
Low - E Seam Tape - Scrimmed Foil Tape

Low - E Seam Tape - Scrimmed Foil Tape

65mm x 46m  show quantity discountsDelivery Time: 2 - 3 days

£17.00 (£20.40 inc VAT)

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Always tape Low-E® when surfaces are clean and dry. Low-E should be taped at junctions with walls, windows and doors. When joining or replacing sections of Low-E®, Low-E® Seam Tape should always be used. All seams that are exposed to conditioned spaces must be taped with Low-E® Seam Tap..

£17.00 (£20.40 inc VAT)

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other types
Reflective Foil Insulation Low-E Perforated - Breathable (15m2).

Reflective Foil Insulation Low-E Perforated - Breathable (15m2).

1.25m x 12m - 15m2 - Free Delivery  show quantity discountsDelivery Time: 2 - 3 days

£86.65 (£103.98 inc VAT)

£5.78/m2 (£6.94/m2 inc VAT)

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Just like the standard Low-E product, Low-E Perforated gives you all the benefits of a reflective insulation however with this reflective foil the company has developed a unique product that is ‘breathable’. Low-E PERF reflective foil is usually used to the exterior side of a secondary insulation to..

£86.65 (£103.98 inc VAT)

£5.78/m2 (£6.94/m2 inc VAT)

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= m2
other lengths
Reflective Foil Insulation Low-E Slab Shield

Reflective Foil Insulation Low-E Slab Shield

1.25m x 12m - 15m2  show quantity discountsDelivery Time: 2 - 3 days

£108.04 (£129.65 inc VAT)

£7.20/m2 (£8.64/m2 inc VAT)

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11mm SlabShield insulation was designed specifically for use under concrete slabs and gives you a vapour barrier and significant thermal performance in one user friendly product. The product has a layer of closed cell polyethylene foam applied to both sides of its reflective core. The closed cell fo..

£108.04 (£129.65 inc VAT)

£7.20/m2 (£8.64/m2 inc VAT)

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= m2
Thinsulex TLX Gold Multifoil Insulation

Thinsulex TLX Gold Multifoil Insulation

1.2m x 10m - 12m2  show quantity discountsDelivery Time: 2 - 3 days

Guide Price: £132.98 (£159.58 inc VAT)

£11.08/m2 (£13.30/m2 inc VAT)

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TLX Gold Thinsulex Multifoil Insulation is a 2 in 1 insulating breather membrane, venting moisture like a breather membrane, whilst insulating like non-breathable PIR board. The key benefit of the product is to improve the thermal performance of a roof without concern of condensation or having to ad..

Guide Price: £132.98 (£159.58 inc VAT)

£11.08/m2 (£13.30/m2 inc VAT)

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= m2
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