>Trade Name: Astro CavGuard Roll 65
Cavity Fire Barrier Roll
> Quick Overview
- A fire rated product, providing fire resistance performance within external wall cavities, for periods up to 60 minutes*.
- Suitable for masonry and brickwork external substrates only.
- Ventilated design – developed to allow maximum ventilation of uninsulated cavities reducing the need for cavity trays or weepholes.
- Suitable for ventilated cavities up to 65mm wide, including building tolerances of up to 15mm (50mm + 15mm).
- Provided in rolls of 6.3m long.
- Flexible and lightweight - designed to be easily and quickly installed.
- No maintenance required after installation.
TO ORDER & SPECIFY
Astro CavGuard Roll 65 are suitable for timber frame and masonry cavities. It is essential that the correct fire barriers are specified and installed, therefore please review the Field of Application Reports seen at the bottom of this page to ensure the product is suitable for your application.
The manufacturer of this product no longer offers Free of charge technical advice on cavity barriers. If advance technical advice is required this can still be provided but at a cost of £400 payment in advance. If this service is needed please contact tel: 01329 844 500 or email: sales@astroflame.com
We would always recommend that the client seeks approval for the use of ALL cavity barriers from the project’s principal designer/building control officer and/or the projects fire engineer before proceeding to purchase the product.
01329 844 500
sales@astroflame.com
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> Product Description
Astroflame's Astro CavGuard Roll 65 is a cavity fire barrier designed to firestop the cavity behind external walls consisting of outer substrates of masonry or brickwork. The low smoke zero halogen highly expansive intumescent material allows ventilation to be maintained in non-fire conditions.
The Astro CavGuard Roll 65 is made from a flexible intumescent material allowing it to be provided in a roll format. With a thickness of only 6mm, the low profile design offers significant space and labour saving over traditional cavity socks, whilst also ensuring the external cavity is left unobstructed and free to ventilate. It is also covered with a protective layer of polythene for ease of handling and to protect it from water.
In the event of a fire the Astro CavGuard Roll 65's intumescent material will expand to close the external wall cavity, providing effective fire resistance, for integrity and insulation for 60 minutes* depending upon the construction of the external wall cavity. The Astro CavGuard Roll 65 is designed to close off a total cavity of 65mm which allows for building tolerances of up to 15mm (above the typical maximum cavity ventilation requirements of 50mm).
> Approved Applications
Astro CavGuard Roll 65 "open state ventilation"
| United Kingdom and European Fire Performance- Tested to BS EN 1363-1:2012 and to the principals of ASFP TGD19:2017 | ||||||||||
| Inner Leaf Substrate Type (facing cavity) with Appropriate minutes Fire Rating | Facade Substrate Type (facing cavity) With Appropriate Fire Rating | Orientation | Insulation Type Within Cavity | Maximum Cavity Width (in mm) | Maximum Open State Air Gap (in mm) | Product Dimensions (thickness x height x length in mm) | For Use Within Internal or External Corners | Product Fire Resistance Rating | ||
| Integrity | Insulation | |||||||||
| Timber Frame with OSB3, Calcium Silicate, Gypsum or Cement Particle Boards | Brick/Blockwork/Pitched-Faced or Random-Faced Stone | Horizontal | None | 65 | 59 | 6 x 75 x 6300 | Internal and external** | 60 | 60 | |
| Field of Application Report-International Fire Consultants (IFC)-PAR/21620/01 | ||||||||||
Open state cavity barriers are tested in conjunction with the technical guidance document developed by the ASFP, TGD19:2017 for use with horizontal cavity barriers, any application for open state cavity barriers should be confirmed with the person responsible for design e.g. the Architect or Fire Engineer responsible for the project design.
* Integrity and insulation performance is measured from the point of closure as per TGD19:2017 requirements.
**For external corner details on Astro CavGuard Roll 65, please contact Astroflame for further information that can be made available to the principle designer / fire engineer for the project in question.
> Typical Installation Details
For full installation instructions and guidance please contact Astroflame on Tel: 01329 844 500 or Email: sales@astroflame.com.
> Storage & Durability
| Storage | Dry, ambient |
| Transportation storage temperature | -20°C to +70°C |
| Working Life | >50 years |
| Durability | Type X intended for use in conditions exposed to weather (UV, rain, frost) |
| Fungal Resistance | Protected by polythene |
| Halogen Content | Low |
> Product Availability
Product dimensions thickness: 6mm x Height: 75mm x Length: 6,300mm.
| Product Code | Product Description | Size | Colour / Finish |
| AFCFBR65 | Astro CavGuard Roll 65 | 6mm x 75mm x 6,300mm | Red / PE Sleeve |
> To Order & Specify
Please contact us and quote the following - Quantity / Product Code / Product Description / Size
Typical example:- 10 / AFCFBR65 / Astro CavGuard Roll 65 / 6 x 75 x 6,300mm
>> Tel: 01329 844 500 or >> Email: sales@astroflame.com
> Installation
We have technical representatives who provide assistance in the selection and specification of the products on this site and should be consulted for exact installation and product suitability. Ensure an early engagement with ourselves, designers, main contractor and specialist installers before any installation. Other trades and/or manufacturers may need to be consulted. For in-depth information, specification and technical advice please call our Head Office on tel 01329 844 500 or email sales@astroflame.com
> Maintenance
All interested parties, designer, specifier, main contractor and specialist installers should provide access to allow the fire stopping seals to be regularly inspected and maintained, as well as records kept of such maintenance at minimum periods of 12 months, as required by the Regulatory Reform Order, and repaired if necessary. Reference should be made to ASFP TGD 17 – Code of Practice for the Installation and Inspection of Fire Stopping.
> Competency
It is vital that those entrusted to design or install a fire stopping product have the necessary levels of competence to undertake the task professionally and thoroughly. The level of competency required will be commensurate with the expected complexity of the building. All designers must eliminate, reduce or control foreseeable risks that may arise during installation, construction or maintenance when preparing or modifying designs. Clients should ensure that the principal designer and principal contractor carry out their duties under CDM regulations. The ASFP foundation course in passive fire protection provides essential knowledge as part of demonstrating competency and understanding in this key fire protection specialism.
> Additional Notes
Astro CavGuard Roll 65 are suitable for timber frame and masonry cavities. It is essential that the correct fire barriers are specified and installed, therefore please review the Field of Application Reports seen at the bottom of this page to ensure the product is suitable for your application.
The manufacturer of this product no longer offers Free of charge technical advice on cavity barriers. If advance technical advice is required this can still be provided but at a cost of £400 payment in advance. If this service is needed please contact tel: 01329 844 500 or email: sales@astroflame.com
We would always recommend that the client seeks approval for the use of ALL cavity barriers from the project’s principal designer/building control officer and/or the projects fire engineer before proceeding to purchase the product.
> Health and Safety
The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email sales@astroflame.com
> Delivery/Returns
For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday). All dates quoted for despatch are estimates only and are not guaranteed. We will endeavour to meet these dates but shall have no liability for any delay in despatch or delivery or any damage or loss occasioned thereby. We may deliver products pursuant to any order by instalments. If we are unable to deliver the goods for any reason,you will be contacted and you will not be obliged to pay for the goods which have not been delivered, you also have the option to cancel the goods that have been delivered, however we shall not be liable for any loss of income or profit which may have been caused by the delay or non delivery of goods.
For information about our returns policy please click here.
> Ask a Question
If you've got a question about this product or need some technical help get in touch with the Astroflame sales or technical team to discuss your requirements today. We are open Monday to Friday 8:00am to 5:30pm. You can always contact us on the following:
Web Page Last Modified: 16th March 2026