If your landscape prevents you from pitching the patio to allow for natural water runoff your concrete contractor can install an in slab drainage system with gravel filled channels to carry the water away.
Outdoor concrete slab drainage.
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Problems such as improper slope or no slope at all can begin with the pouring of the concrete.
The best way to prevent patio drainage problems is to plan for them when the slab is installed.
The surface of a concrete slab is impervious to water which means that if water can t run off the surface it will pool on your patio.
If there are no cracks in the concrete slab you can pour concrete right over it and slope it properly.
This can be a problem made worse by melting snow or a heavy rain.
When planning a concrete patio construction project one of the most important things to keep in mind is that your patio will inevitably have water buildup during periods of rainy and snowy weather.
If the water pools next to your home it can damage your foundation.
It is not uncommon to see improper or inadequate drainage such as drain pipes that are too small for the amount of water they must move drain pipes that flow uphill or do not have enough drop to move water fast enough.
During rainstorms the patio collects some water thereby forming puddles since there is not a good slope to allow for drainage.
Correcting drainage problems can cost 1 100 to 5 500.
So to calculate the difference in height between one end of a patio or walkway and another simply multiply the length by one quarter.
If you have a concrete pad for your patio you can actually fix it.
In hot weather it can expand and if it meets with an unmovable object it will crack.
Concrete expands and contracts with the temperature.
The standard slope for proper concrete drainage is a one quarter inch drop for every foot of length.
If that water stays on your patio surface it will cause damage to the structure of the concrete itself and may form a breeding ground for mosquitoes and mold.
Leveling existing concrete patio for drainage hello i am planning a diy project to screen in my existing and covered concrete patio.
Sometimes drainage will cause problems and that moisture can be directed away from the concrete slab.
But the problems may not end there.