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Active Vent
The Active Vent blog

Cavity ventilation, damp and building health, explained.

Research-backed guides and practical series on keeping walls dry, meeting the regulations and getting the most from Active Vent, with sources linked throughout.

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Building Science
β˜… Pillar Β· 2 sub-articles

The Complete Guide to Cavity Wall Ventilation

Why a cavity wall has to be able to breathe, where the moisture comes from, why damp walls quietly waste heat, and how to keep a cavity dry and drained: a plain-English hub for homeowners, builders and surveyors.

Key Takeaways
Active Vent Team11 July 20267 min read

βœ“ Your progress is saved, so you can pick up where you left off.

Topic series

Multi-article clusters that take a subject from the ground up: a pillar guide plus its supporting chapters, built to work together for readers and AI search engines alike.

Keep the air (and the moisture) moving

Active Vent is the wind-powered cavity vent with a removable insert you can inspect and keep clear. See the evidence behind the design.