Garage door entry not sloped

[leafman92]

Hey there. Looking for some ideas on how to address the issue of my garage door entrance being completely flat. There was no slope put in front of my garage door and occasionally when it rains hard some water leaks back under my door. I have searched and seen some mentions of making cuts with a grinder then chipping away to create a slope. Has anyone ever actually done this successfully? I have recently purchased a threshold seal and will give it a shot. Any tips would be appreciated. Thanks

 

[finn]

A Diamond cup wheel for a 4 1/2” grinder is probably around $20. Take a skim cut to provide a light taper so the water drains away, towards the driveway.

I suspect you can rent a stand up concrete grinder that would make the job easier, at a cost, but the little, inexpensive Makita cup wheel worked for me. Functional, but not exactly pretty.

 

[tarmy]

These were poured intentionally flat with no lip so I could roll large tools and boats in and out of the garage On dollies. Good door seals are a must. There sometimes gets some water but not much under the doors. I just squeegee it out

 

[Zeke]

What does the outside apron do? Slope? Gravel? If it does any good, cut a kerf just behind the seal and angle the ends out and away.

If it's all flat like @tarmy, then call him.

 

[finn]

These were poured intentionally flat with no lip so I could roll large tools and boats in and out of the garage On dollies. Good door seals are a must. There sometimes gets some water but not much under the doors. I just squeegee it out

Looks nice, but from the trees, it looks like you probably in a location that only gets sporadic precipitation. Day after day of rain, and copious amounts of snow melt would flood your garage floor such that a squeegee would be ineffective.

 

[BillK]

I have 2 16' doors at home and 2 12' ones at my business and none of them have a slope. None of them leak water. The 2 at home face south and the ones at work face west and we get plenty of rain

 

[dcg9381]

There was no slope put in front of my garage door and occasionally when it rains hard some water leaks back under my door.

Is there slope where the pad breaks to the drive?
This happened in my house, they forgot to create a "lip" for the garage door to sit into. They basically came back, cut out an inch of concrete with a saw and chipper, poured some sort of skim coat and floated it with very minor slope..

 

[Dig Doug]

Add rain gutters to catch the water from the roof line

 

[tarmy]

Looks nice, but from the trees, it looks like you probably in a location that only gets sporadic precipitation. Day after day of rain, and copious amounts of snow melt would flood your garage floor such that a squeegee would be ineffective.

Nope…mountains of NorCal. Many many feet of snow and wet winters. I have removed most of the big trees near that structure as they tend to make a mess of things they land on.

 

[leafman92]

Appreciate all the replies. I do have rain gutters however my door is on the front which is gable end. I think i'm going to pick up a diamond cup wheel for my grinder and attempt to put a slight slope in front of my door. Have also purchased a threshold seal which i will install. After i have grinded some material away does the concrete require any treatment such as a sealer? Anyone have suggestions there. Thanks

 

[Kpaige]

Just did this on my garage used a cupped diamond wheel on a 4” grinder, then Thompson water sealed it after

 

[leafman92]

Just did this on my garage used a cupped diamond wheel on a 4” grinder, then Thompson water sealed it after

Nice! Any pics on how it turned out. Just curious before i go at it

 

[Monza Harry]

I would think that your circular saw [metal gaurded one] with a diamond wheel will cut nice clean groves. Place the saw in a channel of angle iron [will work as a guide for straightness and depth if you desire a slope, otherwisejust use a guide edge], with your desired slope [1/8"/ft(?)], shim and/or anchor accordingly. This will get water away, enough? IDK. I would also tilt the saw to "V" the slot to deal with freeze conditions. If insufficient just add more grooves. An awning will help as well. Harry

 

[nadogail]

Everything in my garage is elevated enough to allow for a small amount of water on the floor. The wooden cabinets are sitting on a plinth to make them level. The work table has threaded adjustable feet.

 

[Kpaige]

Nice! Any pics on how it turned out. Just curious before i go at it

No pics but all I did was mark where the door seals then went in 1/2” marked a line with sharpie all the way across and went to grinding. Took about 30 minutes for each door. Used a torpedo level to make sure of pitch. When you grind concrete you grind off the top that is a natural protection to the concrete and you expose the aggregate that’s why I seal it.

I used these cheap diamond wheels

[Upgraded] 2 Pack Diamond Cup... https://www.amazon.com/dp/B09LZ1FCCQ/?tag=atomicindus08-20

 

[the shifty jesus]

I had the same issue about ten years ago, so I installed an aluminum threshold that stands about 1/2” overall. It’s sealed underneath with construction adhesive, and installed with tapcons. That and a commercial seal on the bottom of the doors has kept everything out since