Can anyone tell me what the industry standard is to slope a patio that is 20ft from house and 46ft wide? I have been trying to get info on another site but everyone there is arguing with each other and I really need this info and how can I find it? I have a patio that is a lake and turns to ice in the winter. WA state weather. This patio was poured last year and I have tried to get someone to "get it right". Between the contractor and the sub-contractor what they want is to grind the patio down so water ca run off. I can't see that working I did not pay for a ground up patio, I just want to be safe this year! My daughter and I spent almost a whole year living in the garage to put a new modular home on the property, to find that using the back door was dangerous when it rained and then froze. Even the dog would not walk on this patio in the winter, she walked all the way around then hugged the house for safety!!
