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Wall Weeps & Vents
CONCEALED CAVITY WALL WEEP VENTS
An unobtrusive cavity weep hole duct.
- Virtually invisible when installed; showing only the small weep outlet.
- 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.
- To protect the outlet from blockage during rendering or water penetration during flooding use Rytons DamRyt® Rytweep Protector DAMWEEP.
Size: 101mm L x 66mm H x 10mm W (see image gallery above).
CAD drawing available by email.
Free Area: Not applicable.
Composition:
High impact polystyrene.
Installation:
Installation is fast and easy as work proceeds with a Rytweep replacing the 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:
200no: Box size: 27cm W x 28cm H x 18cm D. Box weight: 2kg.
50no: Box size: 28cm W x 11cm H x 14.5cm D. Box weight: 500gms.
Reference Material:
NHBC Standards 6.1.17. Where fairfaced masonry is supported by lintels weep holes should be provided at a maximum of 450mm intervals and each opening should have at least two weep holes.
Weep holes in rendered walls – NHBC Technical Newsletter April 2005 (Issue 32). If the outer leaf of a masonry wall is fully rendered then weep holes over cavity trays may be omitted. However, if the render stops short of the top of a wall and has a fair faced masonry panel above it then weep holes should be provided over the cavity trays within both the fair faced and the rendered section of the wall.
The NHBC also recommend that any wall that supports ground should be drained to relieve water pressure.
The Building Regulations, Approved Document C, Internal and external walls (moisture from the ground) 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.
Also refer to: British Standards BS 8215.
Prices shown are excluding vat | show prices including vat
Additional Information
There are no additional documents available for this product.
