I had a drain installed in the center of the garage when they poured the floor. Instead of pitching the threshold away from the drain and toward the driveway, the whole slab falls toward the drain. The form also must have had a big crown in it because the threshold has a high spot in near the center and door seal does not sit flat. Guess what happens when it rains? 
I've been reading and thinking of the best way to fix it but they all have their pros and cons so I can't decide. Which option do you think would be the best?...
1. Grind it down so I have fall away from the door. I'll need to take off about 1/4" so the con would be the gravel showing. Driveway is not poured yet so I'm good there. I plan on epoxying the whole floor so I could cover the exposed gravel with that.
2. Cut out a 4" deep chunk and re pour it with the proper pitch away from the door. Con... I have turn down footings that are 18" deep so I can't just cut the slab 4" deep along the door edge and break the rest of it out. The main section won't be that bad. Just multiple vertical cuts and whack it a sledge. It's the 2 corners and the 10" along the block that will be a bear since I can't get the blade right up against the block and really don't want to have to run the cut 6" or so past the corner so the blade will cut deep enough.
3. Install a narrow channel drain. Installing it in the normal spot won't solve the problem, I'd have to install it a little under the door seal. Then I'll have to figure out a way to get the water out of the drain. Again, those 18" footers complicate things. I'd probably have to run the drain along the block also and pitch it toward the driveway. Or I could drill vertical holes about 6" down then horizontal holes 10" deep. If I get lucky and the holes intersect the water would drain under the driveway. Key word is "lucky" though. I've never had a hand held hammer drill hole end up at the same spot I started on. LOL
4. Threshold seal. Cons... not too fond of having a speed bump near the door, it won't last forever, adhesion longevity. I see that the Tsunami has a lifetime warranty but I still don't really like the idea of a speed bump.
5. This one is a little off the wall but I haven't finished the front door trim/siding/soffit/fascia yet. I have a 12/12 pitch roof with 10' ceilings and an 8' tall door. I could extend the roof to make a longer overhang (about 2.5' plus the gutter would get me about a 3' overhang). That would be enough to keep the water from even reaching the door except on the rare occasion when we have storms come from the east. Again, off the wall solution and really just a thought but if I'm going to put the time and money into keeping the water out, this would get me the most benefit (could keep the garage door open when it rains).
Any other solutions I haven't considered?
I'm leaning toward #1. Probably the fastest and cheapest and it will 100% fix the problem. Only concern is the look of the exposed gravel. How well does that epoxy hold up outdoors? Will I need to re-do it every 5 or so years?
I've been reading and thinking of the best way to fix it but they all have their pros and cons so I can't decide. Which option do you think would be the best?...
1. Grind it down so I have fall away from the door. I'll need to take off about 1/4" so the con would be the gravel showing. Driveway is not poured yet so I'm good there. I plan on epoxying the whole floor so I could cover the exposed gravel with that.
2. Cut out a 4" deep chunk and re pour it with the proper pitch away from the door. Con... I have turn down footings that are 18" deep so I can't just cut the slab 4" deep along the door edge and break the rest of it out. The main section won't be that bad. Just multiple vertical cuts and whack it a sledge. It's the 2 corners and the 10" along the block that will be a bear since I can't get the blade right up against the block and really don't want to have to run the cut 6" or so past the corner so the blade will cut deep enough.
3. Install a narrow channel drain. Installing it in the normal spot won't solve the problem, I'd have to install it a little under the door seal. Then I'll have to figure out a way to get the water out of the drain. Again, those 18" footers complicate things. I'd probably have to run the drain along the block also and pitch it toward the driveway. Or I could drill vertical holes about 6" down then horizontal holes 10" deep. If I get lucky and the holes intersect the water would drain under the driveway. Key word is "lucky" though. I've never had a hand held hammer drill hole end up at the same spot I started on. LOL
4. Threshold seal. Cons... not too fond of having a speed bump near the door, it won't last forever, adhesion longevity. I see that the Tsunami has a lifetime warranty but I still don't really like the idea of a speed bump.
5. This one is a little off the wall but I haven't finished the front door trim/siding/soffit/fascia yet. I have a 12/12 pitch roof with 10' ceilings and an 8' tall door. I could extend the roof to make a longer overhang (about 2.5' plus the gutter would get me about a 3' overhang). That would be enough to keep the water from even reaching the door except on the rare occasion when we have storms come from the east. Again, off the wall solution and really just a thought but if I'm going to put the time and money into keeping the water out, this would get me the most benefit (could keep the garage door open when it rains).
Any other solutions I haven't considered?
I'm leaning toward #1. Probably the fastest and cheapest and it will 100% fix the problem. Only concern is the look of the exposed gravel. How well does that epoxy hold up outdoors? Will I need to re-do it every 5 or so years?