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Order Pre 2pm for Delivery YBS Foil-Tec Single 25m² – Insulating Vapour Barrier
YBS Foil-Tec Single 25m² – Insulating Vapour Barrier
Ultra-Thin Multi-use Insulation
YBS Foil-Tec Single is a high-performance 2-in-1 insulating Vapour Control Layer (VCL), fully approved by BDA Kiwa and NHBC for use in roofs, walls, and floors. Fully certified, it can also contribute towards improving your property’s EPC rating.
When installed with all joints taped and sealed using our Thermaseal Foil Joining Tape, Foil-Tec Single Lite provides an effective vapour control layer while delivering exceptional thermal performance.
At less than 1mm thick, Foil-Tec Single Lite achieves an impressive R-value of up to 0.74 m²K/W, helping to improve energy efficiency without adding significant build-up to your construction.
Manufactured from durable, non-degradable materials, the product is designed to maintain its thermal performance and structural integrity throughout its service life.
For detailed technical information, including target U-values and installation guidance, please refer to the product data sheet.
Foil-Tec Single Lite is particularly popular in underfloor heating applications. To secure the insulation effectively, we recommend using YBS Saddle Clips, which help hold the material firmly in place while creating the air cavity required for the reflective foil surface to perform at its optimum level.
Contact Us
If you require assistance with your specific project, do not hesitate to get in touch with us via our Contact Us Page. If you have a project going through building control, why not visit our Online U-value Calculator? The U Value Calculator provides free results specifying exactly what product makeup you need to achieve it.
Order online at the lowest Online Prices before 2pm and receive delivery the Next Working Day to the UK Mainland.
Prefer to order by phone? Speak to our dedicated team on 0114 323 0045. Or you can request a Call Me Back!
FREE GIFT
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 Double Sided Tape.
How to Install Foil-Tec Single/Double on Floors
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Roll out Foil-Tec
Start by rolling out Foil-Tec over the joists. It is recommend to roll the insulation perpendicular to the joists. Avoid cutting the length just yet, as the recess will use up extra material.
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Create a recess with Saddle Clips
Saddle Clips are important for keeping the insulation fixed in place, but additionally to create an even air cavity. Install Saddle Clips over the joists, which fits Foil-Tec snug around the timber. We recommend 4 saddle clips per m2
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Alternate method - using Staples
An alternate method if you wish to avoid Saddle Clips is to staple. Staple Foil-Tec down the joists, to create an air cavity. Tip - the further down the joists, the greater the thermal benefits! This is because an increased cavity will give an improved R-value.
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Overlapping Foil-Tec
Overlap Foil-Tec by a min 50mm, however to a max of 100mm. This prevents any draughts. Ensure any overlaps are left un-taped. This allows any potential moisture build-up to properly escape.
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Ensure Foil Tec is lipped up the walls
Around the perimeter, it is important to lip Foil Tec up the wall. It needs to be taken up by a min of 50mm. This will generally be then hidden by chipboard and skirting board. This is to prevent any draughts. Follow with Thermaseal Foil Tape around the perimeter.
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Finish by installing Chipboard
Once all the insulation is fixed down and recessed, you are now ready to install your finished floorboards.
| Width | 1m |
| Length | 25m |
| Roll Coverage | 25m² |
| Thickness | Less than 1mm |
| Roof R-value | 0.49m²K/W |
| Wall R-value | 0.74m²K/W |
| Floor R-value | up to 3.37m²K/W |
| Foil Emissivity | 0.02 |
| Water Vapour Resistance | 600MNs/g |
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