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YBS Airtec Double

YBS Airtec Double

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expand_circle_down Description

Top Selling Multi-Purpose Foil Insulation

This is an ultra-thin, highly reflective aluminium foil product. YBS Airtec Double is it just 4mm, so is our thinnest insulation. Suitable for Roofs, Walls, Floors, Conservatories, Greenhouses, Sheds, Summerhouses, and Motorhomes.

YBS Airtec Double performance comes from highly reflective aluminium foil. It has a laminated surface for durability on either side of an air bubble membrane too. This membrane effectively acts as a Vapour Control Layer when fully taped and sealed using ThermaSeal Foil Joining Tape.

Airtec Double is equivalent to around 55mm of Polystyrene, with an R-Value of 1.45. It is the DIYer’s go-to insulation as it is thin, flexible, and extremely easy to install.

You can Download our Fitting and Data Sheet or you can view our How-To Videos, to see how easy it is to install Airtec Double in your project.

If you are looking for a higher-performing product? Our best multifoil for DIY use is EcoQuilt Expert. When comparing performance to cost is our EcoQuilt Expert material. EcoQuilt is suitable for all the same applications as Airtec however close to double the performance.

Order online at the lowest Online Prices before 2 pm and receive delivery the Next Working Day to the UK Mainland.

YBS Airtec Double is also available in a Trade Pallet so you can buy Airtec Double at the lowest price per roll.


Spend £500 + VAT and Choose a FREE GIFT at the checkout!

Free Gifts Include Thermaseal Foil Joining Tape, Heavy Duty Staple Gun Kit, Multifoil Insulation Scissors, or Thermaseal DoDouble-Sidedape.


expand_circle_down How-To Videos

EcoAirtec Double Insulation - High Performing Multi Purpose Foil Insulation

expand_circle_down How-To Guides

How To Install Airtec Double

expand_circle_down Reviews
  1. Jeff Gladwin (verified owner)

    Easy to order delivered the next day as promised.

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expand_circle_down Specification
Width1.05m or 1.2m or 1.5m
Length25m or 50m
Thickness 4mm
Weight200g per m²
Foil Emissivity0.05
Water Vapour Resistance600MNs/g
expand_circle_down Q&As

Is this product perforated?

Airtec is un-perforated. It works instead as a vapour control layer. Once you have taped and sealed AirTec – you will prevent passage of moisture. This will in turn remove the risk of condensation.

Can this product be used under Laminate?

We would advise using EcoTec Floor Foam instead as the AirTec has air filled pockets, which could decompress under the weight and massively impact its thermal performance. The EcoTec Floor Foam has a dense foam membrane so is better suited for that application.

What’s the best way to install this?

We would advise applying AirTec by stapling it, to rafters / battens depending on your application. You should use 14mm staples, which come with our Heavy Duty Staple Gun Kit, if you don’t already have them.

Do I need a gap either side of the AirTec?

We do recommend that you have an air cavity either side of the product, to maximise its performance. It will trap low emissivity air within the cavity, enhancing its thermal performance.

Can I insulate over the top of electrical cables?

So long as the cables are not in direct contact with the AirTec, its ok to have the cables underneath. You could always encase them in trunking for extra protection. If you need to pull the cables through the insulation, that is also ok – just ensure you tape and seal around where you have cut.

Is Tape Essential?

It isn’t essential, but it is advisable for most applications. To achieve a vapour control layer you need to use the Thermaseal Foil Joining Tape around all of the edges and joints. You can always get in touch via our Contact Us Form, if you would like assistance on any specific application.

expand_circle_down Data Sheets

How To Video

Key Features

  • Very Cost Effective Solution
  • Insulating Air Bubble Membrane
  • Highly Reflective Outer Layers – True Aluminium Foil
  • Thin, Flexible and Easy to Install
  • High Performing Vapour Control Layer (VCL)
  • Multipurpose – Suitable for All Applications
  • R-Value up to 1.455m² K/W
  • Available in a range of sizes
  • UK Manufactured Logo