Manthorpe Diamond Cavity Wall Weep Vent - Clear

Name: Manthorpe Diamond Cavity Wall Weep Vent - Clear
Brand: Manthorpe
SKU: qt6hr7iisf
Price: 1.30 GBP
Availability: InStock

The Diamond Weep provides a flush-faced, robust, and discreet solution for cavity wall drainage re...

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Product Information

Full details

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.

All features

Model Part Number	106818
Brand	Manthorpe

Extended Product Information

FAQs

Does this vent meet NHBC standards?

Yes, the product is designed to meet NHBC Technical Extra 17 requirements.

What is the width of the opening?

The opening is 4mm, which is designed to allow water to flow freely while stopping larger insects.

Can this be used on existing walls?

These vents are designed primarily for new build masonry work as they need to be integrated into the perp joint during the bricklaying process.

How many should I install?

Installation frequency should align with local building regulations and project specifications, typically spaced to ensure full cavity drainage.

Will the plastic fade over time?

The vents are made from durable, UV-stabilized materials intended for long-term outdoor exposure.

Is the unit visible once installed?

The unit sits flush with the brickwork, making it very discreet and nearly invisible from a distance.

Troubleshooting

Vent appearing loose after mortar has dried

Ensure that the mortar mix was properly forced into the ribs during installation; if necessary, carefully repoint around the flange to secure the unit.

Water pooling inside the cavity despite vent installation

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.

Pros and Cons

Pros

High drainage efficiency through diamond geometry
Discreet flush-face finish for clean masonry aesthetics
Strong mortar bond thanks to integrated rib design
Meets industry-standard NHBC guidelines
Self-cleaning functionality reduces maintenance needs

Cons

Requires precise alignment during bricklaying
Not suitable for preventing entry of very small debris or tiny insects
Requires professional installation for optimal moisture management

Setup, Compatibility & Care

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.