SuperFOIL SF19BB Breathable Insulation

Special Price £132.72 PRICE PER ITEM Regular Price £140.69
Estimated Delivery: 1-3 Days
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Product Description

As producers of the UK’s highest performing multifoil, SuperFOIL’s range of breathable insulation is ideal for virtually any roofing project where space saving is paramount. The perfect solution for troublesome retrofits and an excellent cost/time saving measure for new builds, the BB range provides both quality thermal performance and a reflective top membrane. As opposed to traditional types of insulation, which need the installation of both a breathable membrane and then insulation, SuperFOIL’s breathable range only requires the installation of a single layer, making for a convenient, multi-purpose product for your roofs and walls. 


Overview of SuperFOIL – SF19BB Breathable Insulation 

  • 3 in 1 design providing high performance insulation, a breathable membrane, and a radiant barrier 
  • CE certified and approved product for building regulations 
  • Built in 100mm overlap on the breathable membrane, preventing excess at joints 
  • Reflective top membrane provides a secondary rain barrier 
  • Easy to install, requiring no special tools for fitting 
  • Helps prevent the formation of mould and damp by reducing the risk of condensation 
  • Suitable for use in both roofs and walls 
  • Can be installed as a ‘DUET’ system using SuperFOIL both internally and externally or as part of a ‘COMBI’ installation, meaning that the SuperFOIL can be used with other insulation products to achieve any U-Value 
  • Produced as a continuous layer and easy to install 
  • Manufactured with 40% recycled materials 
  • Lifespan of 50+ years 
  • Thermal Performance: 
  • Core: 1.45 R-Value 
  • Roof (inc. air spaces): 2.22 R-Value 
  • Wall (inc. air spaces): 2.53 R-Value 


Common Questions About This Breathable Insulation 


What is Breathable Insulation? 

SuperFOIL’s breathable insulation is uniquely designed with a highly breathable, reflective top membrane which provides a secondary rain barrier and allowing moisture to escape safely. The remaining layers are also perforated, keeping the whole product breathable without sacrificing a high thermal performance. 


How is This Insulation Installed? 

Produced as a continuous layer this insulation can be easily installed by starting at the bottom of your roof, simply roll out over your rafters/joists horizontally, and staple in place. For further guidance, refer to SuperFOIL’s installation guide by clicking above. 


What is a R-Value? 

In short, an R-Value is a number assigned to any given material to allow you to determine how effective it is at resisting the flow of heat. Generally speaking, the higher the R-Value the better the insulation. It is important to note however, that there are other influencing factors that can affect an R-Value so it may not apply to loose-fill or blown-in insulation.  


What is a U-Value? 

Unlike the R-Value, which is material property value, a U-Value is a calculation that measures the rate at which heat flows through one square foot of material. Essentially it is a number to identify how well a product keeps heat from escaping. The lower the U-Value the better that product is at reducing the transfer of heat. 

Have More Questions About This Breathable Insulation? 

If you have any questions, don’t hesitate to get in touch with our award-winning team. They’ll help you pick the ideal product for your project, whether you’re revitalising an existing property or are tacking a larger new build. You can get in touch by calling 01295 565 565 or using our online live chat.  

Product Specifications

View as Feet & Inch
More Information
Lead Time1-3 Days
Thickness40 mm
Overall Length10000 mm


Delivery Information

We understand that ordering products online can be daunting, especially when ordering roofing materials. It is for this reason that we make our delivery processes as simple as possible for you. However, there are a few things to know about our delivery processes. These include:

  • When placing an order, you’ll see a breakdown of your delivery charge in your shopping cart. These charges are for the UK mainland only, and additional charges may apply for Northern Ireland, the Scottish Highlands and other regions.

  • Deliveries only take place on working days (Mon - Fri) and do not take place on Bank Holidays. 

  • You’ll find an estimated delivery on the majority of product pages below the 'Add to Basket' button. Whilst we aim to deliver your items within the estimated delivery, it is only an estimate. 

  • You're able to select a preferred delivery date in your shopping basket. Whilst we aim to deliver your items on this date, it is not guaranteed.
  • Orders placed after 12pm, during the weekend, and on a bank holiday will not be processed until the next working day. Please consider this when placing your order as it may impact your delivery date.

  • After you’ve placed your order, you’ll receive an order confirmation by email outlining the details of your order. Please check your order confirmation email and inform us of any mistakes or errors immediately.

  • Shortly after receiving your order confirmation you’ll receive a separate email confirming the planned delivery date.

  • We can only provide a delivery date and are not able to confirm the time delivery will be attempted. Therefore, we ask that somebody is able to accept and sign for your items throughout the started delivery date.

  • If you are unable to accept and sign for an order, it can be left in a safe location in most circumstances. Please email [email protected] if you would like an item to be left without a signature. 

  • Whilst we aim to hold the majority of our products in stock, due to the vast number of products we offer this is not always possible. Because of this we are required to send your items directly from the manufacturer on a small number of occasions, at which point a different delivery charge may apply as standard.  

  • On occasions the items ordered may be shipped from different depots, which could result in seperate deliveries taking place.

If you have more questions about our products or delivery, please contact our team online or by telephone.

Refund Information

We understand mistakes can be made and we therefore keep our cancellation and returns policy as simple as possible. However, there are a few things to know about cancelling an order or returning an item. These include:

Items Not Required

Should you no longer require an item, you have the right to cancel within 14 days of delivery unless the items are custom made. You needn’t give us reason for cancelling your order but will be required to notify us by email. Once notified we will provide an address for the items to be returned to and arrange the necessary refund.

Faulty or Damaged Items

On the rare occasion that an item is delivered faulty or damaged, we will exchange it or provide a refund. We must be notified by email as soon as possible and may require images. To avoid such an issue, we ask that customers do not sign for damaged goods.

Custom Made Items

A handful of items are ‘Custom Made’. This means they are typically manufactured to the specifications provided by you and are therefore non-refundable. This is unless they are deemed to be faulty or damaged at the time of delivery, at which point you should notify us by email as soon as possible.

Further Information

For further information on cancellations, returns and refunds please read our full policy by clicking here. This confirms any other requirements to consider (i.e. packaging), fees that may be charged (i.e. admin charges) and our policy for businesses.