SuperFOIL SFTV Thermal Vapour Barrier 25m x 1.5m

Original price was: £89.65.Current price is: £73.06. Inc VAT

Direct Delivery
Rapid Delivery: 1 to 3 Working Days

 Nationwide Delivery

Rapid Delivery: 1 to 3 Working Days

Delivery costs are calculated in the checkout based on products and delivery address.

To read more about our delivery service click here.

Rapid Delivery: 1 to 3 Working Days
Product Description

Our range of reflective membrane’s add a competitive edge over traditional membranes by serving two purposes. They provide both the VCL or breather membrane function whilst adding additional thermal performance to your build helping you to save money & space on insulation costs.

SFTV & SFTV 1L provide a very high performance vapour control layer. With a vapour resistance of 1200MNs/g SFTV achieves nearly 3 times the performance of a standard 500gauge polythene. Higher performance means less vapour will get into your roof or wall structure in turn reducing the risk of condensation significantly.

SFBB our breathable membrane offers the other side to the equation. It is fully W1 watertight so can be used on both roofs & walls unlike many breathable membranes means you only need one product for your project instead of 2. Its low vapour resistance of 0.115MNs/g means that any vapour that does enter your properties walls or roof will be able to easily escape rather than building up and forming condensation.


  • Reflective Membrane for added thermal performance.
  • Using a high performance VCL & breather membrane helps to reduce the risk of condensation.
  • Helps to reduce solar gain in summer & heat loss in winter.
  • W1 Watertight so can be used on roof & walls, new build or retrofit.
  • Using reflective membranes helps to reduce overall insulation requirements.
  • Quick and easy to install available in multiple roll sizes to suit project.


  • Thickness = 1mm
  • Legnth = 25m
  • Width = 1.5m
  • Coverage = 37.5m²
  • Weight = 5.35kg


  • Water Vapour Resistance: 1200MNs/g
  • Resistance to Water Penetration: W1
  • Tensile Propertie (Legnth): 238 / 227 N/50mm
  • Tensile Propertie (Width): 111 / 100 N/50mm
  • Resistance to Tearing (Legnth): 179N
  • Resistance to Tearing (Width): 179N
  • Elongation (Length): 61 / 57%
  • Elongation (Width): 92 / 87%
  • Flexibility at Low Temp: -40°C


All SuperFOIL reflective membrane products are independently tested to comply with relevant UK building regulations for use as part of construction and European regulations such as CE. These assessments are carried out by notified bodies and 3rd party certified laboratories.

Vapour resistance performance testing has been carried out by BTTG and wind uplift tests performed by BBA to ensure our products meet the highest standards possible.

Additional information

Delivery Costs

At Roofin Online, we offer Everyday Low Prices across an ever-expanding range of roofing and construction materials online. We offer a fast and direct nationwide delivery service, utilising an efficient mix of couriers, haulage and manufacturers’ transport, enabling us to offer competitive prices to our customers.

This means that our delivery costs are calculated in the basket and checkout, as they depend on the products (i.e. brand, quantity, weight, length etc) and the delivery address.

Delivery costs are based on delivery to a single address within the UK Mainland, excluding the Scottish Highlands and Islands where additional costs may apply.

Please see examples of our delivery costs below:

Standard Parcels from £5.95

Small items, such as Ridge Kits, Dry Verge Units and Small Gutter Components etc.

Long Items from £12.00

Long items, such as Cavity Closers, Membranes, Guttering, Continuous Verge and Pipe etc.

Palletised Delivery from £40.00

Heavier products like roof tiles, lead rolls, paving etc require palletised delivery.

Clear Amber Delivery

Orders under £200 + VAT = £40.00 + VAT
Orders over £200 + VAT = £30.00 + VAT

Specialist dedicated transport for large items like roof sheets (Corrapol, Axiome, Axgard, Alukap-XR, Alukap-SS, Snapa, Aluflow and Alupave).

Delivery Updates

When Ordering: We give estimated delivery times upfront on the individual product pages. These delivery times are given in standard working days, which are Monday to Friday from 09:00 until 17:00 (excluding Bank Holidays). After Ordering: We will provide you with more accurate delivery updates after we have processed your order, the information provided will depend on the delivery service that’s available for the products you order and will be sent to the email address you enter during checkout. We may provide a planned delivery date, tracking information or simply further instructions if updates are to come directly from a supplier or delivery partner. Before Delivery: Deliveries are made on commercial vehicles up to 18-tonne rigid lorries, so please let us know about access restrictions, safe places and further instructions ASAP, as failed deliveries may incur additional costs, especially for bulky or palletised deliveries. During Delivery: Small items will be delivered to your door via courier, however, bulkier items, will require a specialist or palletised services. Palletised deliveries will be made on a lorry equipped with a tail-lift and pallet truck, so the driver will unload your order and place it at the nearest road access point to the delivery address (kerbside delivery). The delivery drivers will not provide labour and physically move the building materials to where you need them, so please ensure that somebody with the ability and willingness to handle the goods accepts the delivery. Please keep in mind that if you order in the evening, a weekend or on a bank holiday then your order will be processed by a member of our team the next working day. For example, if you order at 6 pm on Friday, and the products are on a 1-3 Working Day delivery time. Then you will receive delivery updates when your order is processed/dispatched the following Monday, meaning that Tuesday would be delivery day number 1. You can read more about our delivery service by visiting our delivery information page.

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