How do you fix a gap between garage roll-a-door and concrete floor?

[NAHHA]

Hi, I am seeking practical advice on how to counter water ingress into my garage under the garage roll-a-door where the concrete floor dips away at each side. It is much worse on the right hand side (facing outwards) where the gap is approximately 10mm and it gradually decreases as it moves inwards but there is a visible gap under the rubber for about 350mm. The left hand side isn't as bad. I have a drain running along the front of the garage but when there is a significant downpour, especially with the wind blowing into the garage, the water easily comes in under the door and causes minor flooding in the garage. Once it starts to come in it seems to draw more water as it moves forward.

Also, what type of paint should be used on a concrete floor?

Thank you for your advice.

[Jewelleryrescue]

Hi @NAHHA 

Fighting against wind and heavy rain is difficult to win in those conditions to fully stop the water.

But there is an angled rubber Garage Door Seal that can be glued to you garage floor that the garage door closes on this helps stop a lot of water coming in under the door.

This  rubber  Floor seal can be combined with new rubber seals for the Door seal itself.

Glue this rubber to the cement using Sikaflex pro + sealant as it is strong water proof and flexible as cars might need to drive over it.

If possible use rubber side wings (out of the Garage door seal ) to your garage wall to further contain any water incursions as water often will next try go around the seal.  Cut the rubber at 45 degrees  to make a picture frame  like  join.

Hope this helps

[EricL]

Hello @NAHHA 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about water ingress in your garage.

Generally speaking, the addition of a small concrete ramp or the creation of a drain channel is the common solution usually suggested. In order for our members to get a better idea of your garages condition, would it be possible for you post a photo of the entrance. We can then make recommendations on how to proceed. We'll also be able to tell if there is a way to divert the water coming towards your garage entrance.

If you need a hand posting the photos, please let me know.

Eric