Tailor-made by Rytons – RYTWEA1METAL – Rytons Rytweep® A1 Metal (Fire-rated Cavity Weep)

General Details

Tailor-made by Rytons – RYTWEA1METAL – Rytons Rytweep A1 Metal (Fire-rated Cavity Weep)

Introducing the NEW Rytweep A1 Metal, Rytons popular concealed-design cavity weep hole duct in Regulation 7(2) compliant material.  Fabricated in A1 fire-rated zinc metal it is suitable for use in relevant buildings with a storey 18m or more above ground level.

At Rytons we refuse to compromise on efficient, effective design so replicating the unique Rytweep properties in suitable metal has required a considerable investment in all new tooling.  A new precision diecast tool is currently in process and we are working hard to start product production soon.

Using molten zinc ingots poured into the die mould, zinc diecasting has an extremely slow production cycle time and requires more rigorous quality monitoring than plastic injection moulding.  In view of this, and due to demand, the Rytweep A1 Metal will be tailor-made to order and we are now taking pre-orders for early production slots.

UK Patent Pending – GB1916157.9
Rytons Registered Design – 6078064

Features and Benefits:

  • Rytons popular concealed-design cavity weep hole duct diecast in zinc metal and electroplated with a two part coating.
  • Considered fire class A1 without testing, as per European Commission paper 96/603/EC referred to in BS EN 13501-1:2018.
  • Suitable for use in high-rise buildings with a storey 18m or more above ground level to Regulation 7(2) and Building Regulations Approved Document B.
  • Suitable for use in buildings with a storey 11m or more above ground level to Building (Scotland) technical handbook 2019: domestic and non-domestic, 2.7.
  • Classification: A1.  Definition: Non-combustible.  Description: No contribution to fire.
  • Virtually invisible when installed; showing only the small weep outlet.
  • The simple design allows quick and easy fitting with no special brickwork required.
  • Flush face maintains the aesthetic appearance of the building.


  • 101mm L x 66mm H x 10mm W.


  • Self-colour zinc.
  • Fire-rated RAL colour powder coating available.



  • Installation is fast and easy as work proceeds with the Rytweep replacing a vertical mortar joint.  Ensure the tapered end with the circular outlet is facing the outside and is flush with the external face.  Position the bottom of the Rytweep on the mortar bed against the brick/block.  Postion the next brick alongside the installed Rytweep and mortar in until only the small weep outlet is visible (ensuring the outlet does not become blocked).  Space every fourth brick to drain cavities above and below the dpc, and above lintels and cavity trays.  At least two weep holes should be provided over an opening, i.e. lintel.

Handling Information:

  • 50 per box.

Specification Paragraph:

Rytons Rytweep® A1 Metal (Fire-retardant Cavity Weep – UK Patent Pending: GB1916157.9)
• Manufacturer: Rytons Building Products Ltd
– Web: www.vents.co.uk
– Email: admin@rytons.com
– Tel: +44 (0)1536 511874
– Fax: +44 (0)1536 310455
– Address: Design House, Orion Way, Kettering Business Park, Kettering, Northamptonshire, NN15 6NL
• Product reference: RYTWEA1METAL
• Accessories: None