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Fire-rated UV resistant facade membrane – Ampatop RF Black
Ampatop RF Black fire rated facade membrane is:-
- a class B fire rated breathable membrane (s1,d0) for use with open and closed cladding or on roofs.
- UV resistant for over 10 years sunlight penetrating through the gaps.
- suitable for use with gaps up to 50mm wide and open areas up to 40% of the total facade area.
- a thick but breathable membrane, suitable for use over our wood fibre insulation systems.
Prices: from £269.09 + VAT per 50 x 1.5m roll
Fire-rated UV resistant facade membrane – Ampatop RF Black
Ampatop RF Black fire rated facade membrane is:-
- a class B fire rated breathable membrane (s1,d0) for use with open and closed cladding or on roofs.
- UV resistant for over 10 years sunlight penetrating through the gaps.
- suitable for use with gaps up to 50mm wide and open areas up to 40% of the total facade area.
- a thick but breathable membrane, suitable for use over our wood fibre insulation systems.
Prices: from £269.09 + VAT per 50 x 1.5m roll
Close-ups.
Take a closer look at this product with these additional images.
Image description: This shows a close up of the surface of the membrane behind some wooden cladding. The tape you can see here is the Ampacoll F Colour transparent UV resistant tape.
“A really heavy duty, robust membrane for ensuring breathability whilst limiting flame spread, without the concern of UV damage to the fabric beneath” – Chris Brookman
Product overview.
Where is it used?
- Ampatop RF Black can be used on all vertical facades where no more than 40% of the surface between cladding strips or modules is open.
- It can be used on closed facades or on roof structures, over wood fibre insulation or directly on to timber studs/rafters.
How much will I need?
- Each roll of Ampatop RF Black is 50 x 1.5m, or 75m² per roll.
- Overlaps of 100mm are recommended which reduces the coverage of a roll to 70m²
Can I use it on a roof?
- Ampatop RF Black is suitable for fully tiled/slated roofs but not suitable for use on roofs with gaps between roof covering materials.
- For roofs down to a pitch of 5° use Ampatop Seal. This product is not designed to be exposed for more than 3 months though so make sure that the roof is covered by this time.
How is it used?
- Ampatop RF black should be laid onto the existing support structure, taut and without any folds, with the black side out- wards.
- It should be fastened with staples that must be invisible in the overlap area. It is advantageous to cover them with battens.
- Both the vertical and the horizontal overlaps should be 10cm wide and taped down with Ampacoll UV tape, so that it is windproof.
- Next the counter battens are laid, thus finally fixing the wind proofing to the support structure.
- Visible staples that are exposed to the weather could lead to leaks, and as such should be avoided.
- We recommend fixings that are galvanised as a minimum, with stainless steel being preferable.
- The counter battens are required to secure further work and prevent any possible weather effects (e. g. wind suction or pressure).
- Penetrations and connections should be bonded to make them windproof with Ampacoll UV tape.
- The connection width should, where possible, be at least 10 cm. If this is not possible, a mechanical fixing is advisable.
- In the case of windows and external doors, Ampatop RF black should be made windproof with Ampacoll UV tape on the frame and if necessary secured mechanically.
- We recommend that the façade cladding is installed as soon as possible. In any event, the cladding must be mounted within 6 months.
- The joint width may be up to 50 mm. The individual façade elements must be at least twice as wide.
- The percentage of openings must not exceed 40 %.
Technical Details
Product overview.
Where is it used?
- Ampatop RF Black can be used on all vertical facades where no more than 40% of the surface between cladding strips or modules is open.
How is it used?
- Ampatop RF black should be laid onto the existing support structure, taut and without any folds, with the black side out- wards.
- It should be fastened with staples that must be invisible in the overlap area. It is advantageous to cover them with battens.
- Both the vertical and the horizontal overlaps should be 10cm wide and taped down with Ampacoll UV tape, so that it is windproof.
- Next the counter battens are laid, thus finally fixing the wind proofing to the support structure.
- Visible staples that are exposed to the weather could lead to leaks, and as such should be avoided.
- We recommend fixings that are galvanised as a minimum, with stainless steel being preferable.
- The counter battens are required to secure further work and prevent any possible weather effects (e. g. wind suction or pressure).
- Penetrations and connections should be bonded to make them windproof with Ampacoll UV tape.
- The connection width should, where possible, be at least 10 cm. If this is not possible, a mechanical fixing is advisable.
- In the case of windows and external doors, Ampatop RF black should be made windproof with Ampacoll UV tape on the frame and if necessary secured mechanically.
- We recommend that the façade cladding is installed as soon as possible. In any event, the cladding must be mounted within 6 months.
- The joint width may be up to 50 mm. The individual façade elements must be at least twice as wide.
- The percentage of openings must not exceed 40 %.
How much will I need?
- Each roll of Ampatop RF Black is 50 x 1.5m, or 75m² per roll.
- Overlaps of 100mm are recommended which reduces the coverage of a roll to 70m²
Can I use it on a roof?
- Ampatop RF Black is suitable for fully tiled/slated roofs but not suitable for use on roofs with gaps between roof covering materials.
- For roofs down to a pitch of 5° use Ampatop Seal. This product is not designed to be exposed for more than 3 months though so make sure that the roof is covered by this time.
Material in action.
Here you can see the a facade with the Ampatop B Black applied to the outer surface and then black timber battens applied over this, ready to receive the final cladding materials.

Prices & Shipping
Here you will find pricing and shipping estimates. To get a fixed quote, please call our technical team on 01392 861763 or get in touch via the form below.
Ampatop RF Black membrane is priced as below with a 10% discount on orders of 3 rolls or more.
Roll length [m] | Roll width [m] | Roll Area [m²] | Membrane weight [g/m²] | Roll weight [kg] | Sd value [m] | Single roll cost [£] | 3+ rolls [each] |
---|---|---|---|---|---|---|---|
50 | 1.5 | 75 | 220 | 16.5 | 0.09 | £298.99 | £269.09 |
Carriage is typically calculated at £25 + VAT per roll. This price does vary if delivery is required to remote locations so please contact us for a more accurate price.
If this purchase is part of a larger order, please do not use these transport costs as the goods will grouped together for a much more competitive rate.
Request an estimate.
In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.
Request an estimate.
In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.
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Overview
Back to Earth is a natural building material supplier. We're not your typical builders' merchant though and instead work closely with our clients during the planning, designing and building phases of projects.
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