From £121.75 + VAT per 50m x 1.5m roll

Breathable roofing and walling membrane – Ampatop Aero – 1.5m x 50m

Ampatop Aero breathable membrane is:-

  • a triple layer, tear proof, highly vapour permeable underlay for all pitched roofing applications.
  • a robust, easy to use, wind-proof membrane for use behind cladding systems.
  • an anti-slip, driving rain resistant membrane, suitable for up to 3 months weather exposure.
  • used as part of our roofwall and floor insulation strategies.

Product overview

Where is it used?

  • For use on the outside of timber frame walls, behind clad facades to ensure resistance to weather and insects.
  • For use on all types of pitched roof structure.

How is it used?

  • Ampatop Aero breathable membrane can be stapled to the topside of rafters or the outside of timber battens/studs.
  • All joints should overlap by at least 100mm and any vertical joints should be taped with Ampacoll Flexx Pro tape prior to counter battening or being over boarded/clad.
  • Use Ampacoll DT double sided tape to stick the membrane down to wood fibre or OSB surfaces prior to counter battening.
  • Any penetrations of rafters, vents, ducts or pipes should be sealed with Ampacoll BK 535 penetration sealing tape.

How much will you need?

Each roll of Ampatop Aero breathable membrane is 50m long and 1.5m wide. It covers an area of 70m2 including overlaps.

Frequently asked questions

Do I need to tape the joints?

Yes, you should always tape the laps, usually with the Ampacoll XT tape. This ensures the wind-tightness of the exterior of the building and reduces heat loss from wind penetration.

How long can I leave it exposed?

This membrane is very UV stable and can withstand up to 3 months of weathering without deterioration. Beyond this the sun can begin to degrade the strength and weather resistance of the membrane.

Pricing & shipping

This product is on a 1.5m long roll and will be sent by courier, costing around £20 + VAT

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]

Book your free project consultation

We’d like to hear from you. Call us on 01392 861763 or email us at with any questions or comments.

If you can’t seem to find what you need on our website or you have large quantities of materials to purchase please contact us for a chat and we’ll offer you a more bespoke solution.

We’re normally open from 8.30 am to 5 pm Monday to Thursday, and 8.30 am to 1pm on Friday.