FlameOut Block Class A Vapour Control Layer (AVCL) is a high-spec, flame retardant vapour barrier designed to meet the highest safety and performance standards in modern construction. It is manufactured using a glass woven scrim with an aluminium layer which is protected against corrosion with a special lacquer. Reinforced with a robust glass scrim, it delivers excellent tensile strength—ideal for demanding wall and roof applications. The aluminium layer is treated with a specialist protective coating, enhancing resistance to corrosion and extending long-term performance.
Independently tested to EN 13501-1, this FlameOut Block Class membrane is classified as A2, offering advanced fire resistance for high-risk zones. Its flame retardant (FR) properties make it ideal for use in roofs, walls, and other structural assemblies requiring a flameout block class material.
When installed in wall and roof systems, FlameOUT® Block Class A acts as an effective vapour control layer, prevents moisture-build up and prevents heat loss, maintaining energy efficiency and protecting the structure.
FlameOUT® Block Class A is ideally suited for high-rise buildings over 18 plus m in England and over 11 plus m in Scotland, as well as other safety-critical construction projects.
FlameOUT® Block Class A also supports compliance with BS 9250 by contributing to airtightness in a well-sealed ceiling, and aligns with BS 5250 guidelines for controlling condensation within roof spaces.
Key Features:
- High-performance AVCL with flame retardant A2 block class
- Strong reinforcement scrim provides excellent tensile strength
- Advanced vapour barrier with reflective aluminium layer
- Suitable for use in roof and wall systems
- Works in conjunction with breather membrane systems
- Prevents vapour build-up and internal condensation
- Suitable for use as a damp proof membrane.
- Independently tested to EN 13501-1
- Improves energy efficiency by controlling ventilation and preventing heat loss
- Tested with Aluminum FR tape to seal
- FlameOut Block is a non-combustible FR Class A2 (A2-s1, d0) AVCL
- The vapour barrier is 1.5m wide and 50M long, covers 75 sqm
- Especially suited to 18m+ builds (11m+ in Scotland)
- Compliant with UK Building Regulations Approved Document B
- CE approved, Independently tested to EN 13501-1
| Product Type | Vapour Control Layer |
| Brand | ITP Ltd |
| Length | 50M |
| Width / Coverage | 1.5M / 75 Sqm |
| Resistance To Water Penetration | W1 |
| Colour | White / Silver |
| Temperature Range | -40°C - +100°C |
| Finish | Foil |
| Reaction To Fire | Class A2 |
| Order value | Delivery Charges (EX.VAT) | ||
|---|---|---|---|
| Up to £493 |
£30.00 |
||
|
£493.01 - £740 |
£20 | ||
| Over £741 | £15 | ||
Returns/Refunds And Cancellations:
You can cancel your order and get a full refund anytime before we confirm your order via email.
Once shipped, orders cannot be cancelled. You can however retun the itms to us within 10 days after delivery. 25% restocking fee with will applicable. Buyer pays postage for returns
Customers are requested to check the item on recipt and inform us of any damage immediately, via call/email. Photo evidence is must
For more information on returns and deliveries, please refer to our delivery information page.
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