Caro VentDry
Property Flood Resilience
Caro VentDry™ Deployable Flood Protection
for Air Vents & Airbricks
A simple, effective flood defence solution for one of a property's most vulnerable entry points. Fits any standard airbrick or ventilation opening normal airflow every day, reliable flood protection when it matters.
Product Overview
What is Caro VentDry™?
Air vents are a known vulnerability in flood protection. Caro VentDry™ has been thoughtfully engineered to provide a simple, dependable solution, combining a robust design with rapid deployment and a complete protective seal. By eliminating the need for moving components or time-sensitive installation processes, Caro VentDry™ delivers reliable performance and peace of mind when every moment counts.
Caro VentDry™ is a two-part deployable flood vent cover. A fixed wall frame is installed over the existing vent opening by a competent installer. The cover panel is then stored nearby and placed into the frame by the property occupant when a flood warning is issued. When the flood risk passes, the cover is simply removed and normal ventilation resumes.
The cover panel is manufactured from WCB (Waterproof Construction Board), a 100% waterproof board made from recycled PVC-U. Unlike timber-based alternatives, WCB will not absorb water, swell, or rot, and carries built-in antibacterial properties as standard.
Caro VentDry™ is designed with BS 851188-1:2019+A1:2021 certification as a target. Internal testing has already demonstrated the cover panel can withstand static water pressure without leakage for over 48 hours, a strong indication of the product's flood resistance performance. Formal independent testing will be completed in due course.
NOT SUITABLE FOR USE OVER GAS APPLIANCE VENTS
Internal test result0 leakage / 48+ hrs
Cover materialWCB, recycled PVC-U
Standard targetBS 851188-1:2019+A1:2021
RangeWaterDoor · WaterWall · VentDry™
Certification statusUK's only certified manufacturer
Standard sizes
Caro VentDry™ is available in three standard widths suitable for the most common vent configurations. Standard sizes are designed to fit directly over existing airbrick openings without modification to the surrounding brickwork.
160 × 160mm210 × 210mm250 × 250mm
Key Benefits
Built to be ready
| Deployable by the property occupant. No specialist knowledge required |
| Permanent wall frame means the cover is always ready to deploy at short notice |
| Suitable for both retrofit and new build applications |
| Made from recycled PVC-U, for reduced environmental impact |
| Cover panel is 100% waterproof. Will not swell, rot, or absorb water |
| Normal ventilation is fully restored the moment the cover is removed |
| Designed for submission to BS 851188-1:2019+A1:2021 testing |
Part of the Caro Flood Defence Range
Tested. Proven. Trusted. Property Flood Protection
Caro VentDry™ is designed to work alongside the wider Caro Flood Defence product range to provide comprehensive flood protection for a property. Caro is the UK's only manufacturer certified to BS 851188-1:2019+A1:2021.
For complete protection, Caro Flood Defence recommends combining Caro VentDry™ with other products from the Caro Flood Defence Barrier range:
| Product | What it protects |
|---|---|
| Caro VentDry™ | Air vents, airbricks, and subfloor ventilation openings |
| WaterDoor | Doorways and access openings. BS 851188-1:2019+A1:2021 certified |
| WaterWall | Wider doorways and access openings with central posts |
| WaterTight | Wider doorways and access openings without central posts to 5m |
How It Works
From installation to deployment
1
Fit the frame
A competent installer fits the Caro VentDry™ wall frame over your existing vent or airbrick opening. This is a one-time installation, designed to remain permanently in place.
2
Everyday ventilation
In normal conditions, the frame is left open. Your property continues to benefit from the ventilation it needs.
3
Deploy on warning
When a flood warning is issued, place the Caro VentDry™ cover panel over the frame. No tools are required.
4
Hold back the water
The cover panel holds back floodwater for the duration of the flood event. Internal testing demonstrated zero leakage over 48 hours of static water contact.
5
Remove and restore
Once the flood risk has passed, remove the cover panel, store it safely, and ventilation resumes immediately.
Trade Discount Available
Explore the full range of flood protection solutions available from the Caro Group. For bulk orders and trade discount, talk to the Caro Flood Defence team today.