Seal garage door against rainwater

Hello and good day,

we have a double garage with two swing gates.
During heavy rain, the rainwater flows through the rubber lip at the bottom edge of the gate.
Is there a possibility of sealing from the inside, so that a kind of step is created.
For cost reasons, we skipped the screed and are now looking for information on whether there is possibly sealing tape or adhesive that can be applied to concrete.

Thank you very much
Alberthafen

Hello Alberthafen,

perhaps you have the possibility to screw a flat aluminum profile onto the concrete below the rubber lip of the gate. I would support this with permanently elastic sealing material before tightening the screws.
Outside in front of the garage door, it would be advisable to possibly install a drainage channel to drain and let the water (rainwater and also dew water) seep away.

Best regards from the Osnabrück region
Thomas Brandenburg