Product code: B012501
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The 1143 cavity wall weep is designed to ventilate cavities and discharge water from inside cavity walls. It could be installed over external lintels or wherever cavity tray systems are installed. The 1144 cavity wall weep extension offers a +50mm extension and connects directly onto the 1143 cavity wall weep.
- Purpose made and pre-formed to guarantee reliable discharge of water
- Less prone to inadvertent pointing-up than weep holes formed by simply leaving the perp. joint open
- Integral front grille prevents entry of large nest building insects into the cavity
- Longer lengths built up with extension pieces