Dew Point & Mould Guard

Know when a wall is about to get wet, in degrees rather than a vague warning.

Warning! This app might not work properly.

This app version is currently being tested, and has not yet been reviewed. It might not work as expected.
Be extra careful when installing this app.

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Know when a wall is about to get wet, in degrees rather than a vague warning.

Computes the dew point of each room from your own indoor and outdoor sensors, and shows how many degrees of margin remain before water condenses on its coldest wall. Everything is calculated locally, and nothing leaves your home.

Supported devices

Flow cards

Click on a device above to show related Flow cards only.

When...

Dew Point & Mould Guard

...: The dew point rises above 16 °C

Dew Point & Mould Guard

...: The mould risk became ...

Room

The temperature changes

Room

The humidity changed

And...

Dew Point & Mould Guard

...: The dew point is above 16 °C

Dew Point & Mould Guard

...: The mould risk is ...

Then...

Dew Point & Mould Guard

...: Recalculate now

Widgets

You can add this app’s widgets to your dashboard or homescreen in the mobile app.

Room

Dew point table

Support

Having an issue with this app? Contact the developer via email.

What’s new

Version 1.1.5 — In the widget, the room is now picked from a list, with search. New Dew point table widget: every room with a humidity sensor, with its risk, without creating a device; rooms can be hidden in the app settings. The tiles share a common layout: category, name, value and details, easier to read at a glance. Very low temperatures, down to −50 °C, stay readable and correct. Below 0 °C, the margin accounts for frost, which forms before dew.

View changelog

Works on

Updated 2 days ago

Version 1.1.5

Developer Henri Dominique Rapin

Category Climate

Requires Homey v12.3.0 or newer

Developer website Visit website »

Support Contact »

Permissions

Gain full access to Homey to control everything on behalf of the user

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