Description:
RYTWEEP – Rytons Rytweep® (Cavity Weep)
General Details
Rytons Rytweep® is a cavity weep for drainage through masonry, offering simple installation and a neat, flush finish.
Features and Benefits:
- An unobtrusive cavity weep hole duct.
- 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.
- Lugs aid mortar adhesion for efficient installation.
- Compatible with Rytons Rytweep® Tube RYTWTUBE for use in blockwork or to allow for rendering.
- Use Rytons DamRyt Rytweep® Protector DAMWEEP to protect the outlet from dust and debris during construction or blockage during rendering.
- Rytons Rytweep® Clear is Patent Approved GB2586083.
Important: This is a plastic component and is not suitable for use in the following:
a) external walls of buildings over 11m high where people sleep, whether residential, institutional or hospitality; or
b) external wall surfaces within 1m of a boundary where the building is 11m high or less, in England.
For a compliant alternative, see Rytons A1® Fire-rated Metal Rytweep® part of Rytons A1® Fire-rated Range.
Size:
101mm L x 66mm H x 10mm W.
CAD drawing available by email.
Free Area:
Not applicable.
Colours:
- Clear: RYTWECL.
- Terracotta: RYTWETC.
- Buff/Sand: RYTWEBS.
Composition:
High impact polystyrene.
Installation:
- Installation is fast and easy as work proceeds, with the Rytweep® replacing the vertical mortar joint.
- Ensure the tapered end with the circular outlet faces outward and is flush with the external face.
- Position the bottom of the Rytweep® on the mortar bed against the brick/block.
- Position the next brick alongside the installed Rytweep® and mortar in, ensuring only the small weep outlet remains visible and is not blocked.
- Install at approximately every fourth brick to drain cavities above and below the DPC, and above lintels and cavity trays.
- Provide at least two weep holes over openings (e.g. lintels).
Reference Material:
- NHBC Standards 6.1.17
Where fairfaced masonry is supported by lintels, weep holes should be provided at maximum 450mm intervals. Each opening should have at least two weep holes.
- NHBC Standards 6.11.7c.
Rendering shall be detailed to ensure appropriate weathertightness and durability. Issues to be taken into account include … c) weepholes. Weepholes should be provided: where required for ventilation to timber frame construction; to the last tray at stepped abutments; in severe or very severe exposure zones where rendering is returned back into the window or door head (weepholes are not required where the render is not returned); to cavity trays on parapet walls.
- The Building Regulations – Approved Document C
- 5.5 (b) If the wall is an external wall, the damp-proof course should be at least 150mm above the level of the adjoining ground.
- 5.5 (c) If the wall is an external cavity wall provide weep holes every 900mm to assist in the transfer of moisture through the external leaf. Where the damp-proof tray does not extend the full length of the exposed wall, i.e. above an opening, stop ends and at least two weep holes should be provided.
- British Standards BS 8215
Refer to current guidance for design and installation of damp-proof courses and cavity trays.
Handling Information:
- Box quantity: 200no.
- Box size: 27cm W x 28cm H x 18cm D.
- Box weight: 2kg.
NBS Specification:
Rytons is proud to be a family run business and British manufacturer since 1972
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