Description
Features:
- Used to drain lintels, cavity trays and to ventilate cavity walls.
- Can be slotted between two bricks and mortared into position.
- Provides an unobtrusive ventilation point for the cavity behind.
- The vent has a baffled grille to prevent the ingress of driving rain and wind whilst incorporating an insect grille and drip lip.
- Grille is sized to keep out large insects but is wide enough that it will not be blocked by debris, paint or water droplets.
- Should be spaced at no greater than 900mm centres to meet NHBC guidelines, which state, “weep holes are recommended to be sited at every 450mm maximum with at least two per opening above all windows and doors”.
- Provides 220mm² ventilation airflow.
- Replaces a single mortar joint.
Technical data:
- Material – Polypropylene
- Colour – Buff
- Dimensions – 9x65x100mm
- Free Vent Area – 220mm²
- Manufacturing Process – Injection Moulded
- Single Person Installation Possible – Yes
- Brand – Manthorpe
Standards/Certifications:
- BRE Digest 262
- Building Regulations C4
- BS5250
- BS5628
- BS8000
- NHBC – Good practice guide
- NHBC – Standards 6.1
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