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The Manthorpe Diamond Cavity Wall Weep Vent is designed for professional builders and masonry contractors who need a reliable, discreet solution for managing moisture within cavity walls. Its primary benefit is a high-flow, self-cleaning diamond profile that ensures effective drainage while maintaining a sleek, flush appearance on the exterior brickwork. While it effectively manages water runoff and deters large pests, users should ensure precise installation to achieve the secure mortar key fit required for long-term stability.
| Model Part Number | 106818 |
|---|---|
| Brand | Manthorpe |
Yes, the product is designed to meet NHBC Technical Extra 17 requirements.
The opening is 4mm, which is designed to allow water to flow freely while stopping larger insects.
These vents are designed primarily for new build masonry work as they need to be integrated into the perp joint during the bricklaying process.
Installation frequency should align with local building regulations and project specifications, typically spaced to ensure full cavity drainage.
The vents are made from durable, UV-stabilized materials intended for long-term outdoor exposure.
The unit sits flush with the brickwork, making it very discreet and nearly invisible from a distance.
Ensure that the mortar mix was properly forced into the ribs during installation; if necessary, carefully repoint around the flange to secure the unit.
Check that the weep is not blocked by excess mortar droppings and verify that the DPC is correctly angled to direct water toward the weep outlet.
To install, position the vent within the perp joint during the bricklaying process. Ensure the ribs are fully encased in mortar to create a secure, permanent fixture. The vent is compatible with standard metric brick sizes and should be placed at the recommended intervals specified by local building regulations or structural engineers. Maintenance is minimal due to the self-cleaning design; however, it is advisable to conduct a visual inspection during general building exterior checks to ensure the 4mm opening remains clear of heavy dirt or localized blockage. Avoid using high-pressure water directly into the vent, as this may push debris deeper into the cavity.
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