Won't the outside section allow moisture and humidity into the building through the permeable floor under the door? Wouldn't a sealed structure be better? Just curious. ..
Please, let us know if you find out. I'll see what I can find. I'd like to put a channel in front of my garage doors for drainage, the pad shifted allowing water to drain back towards the door. This stuff wound be nice to fill it, rather than steel grates. Wonder if freezing water would break it apart?
@tangerinegreen555
It is porous. When the company owner came in June, he brought boxes of 1' square color samples. We poured water over them and it went right through to the bottom.
So freezing water shouldn't be an issue unless it backs up over the top making it slippy.
The stuff is a half inch thick. The only way to damage it is blunt force. You could smash it with a sledge or cut it with a masonry saw. It's as hard as rock because that's what it is. Normal use won't impact it.
There will be a half inch under garage door seals. I suppose it will be a minor cold air breech, but not wide open and you'd probably have to be laying there to notice it. There's also a flap seal on garage door bottom to help with that.
The whole theory was to resurface garage floor. It looks great and uniform again. There is a sealant you put on every few years, but they said I only would need that on the outside exposed part.
And 'sealant' isn't the correct word because it remains porous. You wash a car there and the water sinks through immediately and finds it's way down the slopes to the drains.