What are Weep Vents?

You may have heard the Term Weep Holes or Weep Vents or noticed a Small Gap in your External Wall between two bricks.

Your initial thought may be to fill these gaps with Mortar, but these are likely to be your weep vents or weep holes.

So what is a Weep Vent, and what does it do?

The Vents are used on Cavity Walls, and their purpose is to provide a reliable discharge of Water and Moisture from the Cavity.

Cavity Wall

Your Property is likely to have a Cavity Wall if it is a Standard Brick Build and is Post 1920.

The Cavity Wall will help to Insulate your Home in both the Winter and Summer by providing an Air Gap between the walls, which can be filled with Insulation.

Your Cavity Wall also prevents Moisture from Driving Rain entering the Building.

External Walls exposed may see Moisture coming through the Brick work, which is contained within the Cavity Wall.

Moisture and Water Droplets entering the Cavity Wall through the Brick Work are not a significant concern, and this is expected in a Correctly Constructed Wall.

Your Weep Vent will guarantee reliable discharge of this Moisture where Lintels are Placed.

The Weep Vent will not only ventilate cavity walls but also drain lintels and meet relevant building regulations.

The Vents offer tremendous benefits and are placed in the perp joints to ;

• Ventilate

• Offer a Reliable Discharge of Water

Your Weep Vent works perfectly with;

• Lintels

• Stop Ends

•  Lintel Cavity Tray System

• DPC - Damp Proof Course

External Wall

NHBC Requirements are for Weep Vents to be provided at a maximum of 450mm Intervals when Lintels support Masonry.

Weep Vents have a Long Product Life and tend to be manufactured from UV stabilised polypropylene.

Available in a variety of colours to match your Mortar Colour to blend into the aesthetics of your Building.

Large Nest Building Insects

Be sure to check where Weep Holes or Vents are formed as they can be used as an Entry Point for Insects.

Whether a Retrofit or New Build, remember to include your Wall Weep in your Project List to meet relevant British standards and to avoid costly updates further down the line.

There are some fantastic Videos, Demonstrating Installation. Check this one out from the BestBricky. 

Please note we are not Affiliated with Best Bricky and are not responsible for any Advice Provided by the Best Bricky.