Quote:
Originally Posted by zendog3
Your house was built with the floors of the house above grade. Your lanai was built as an outdoor space and the floor is not above grade, but on grade. To expect the slider rails to keep out the flood of a heavy rain is asking a lot. You should have raised the floor. If not, I don't see you have a case.
Our lanai and bird cage floor was concrete tiles. Naturally, the rain runs through the spaces between tiles and comes into the lanai with heavy rains. The grade is away from the house so that keeps all but the heaviest rains out.
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My lanai floor is about 6 inches above grade, which is typical for the newer houses. If the floor was on the ground level, the contractor should have at least raised the sliding doors at inch or so to prevent a driving rain from forcing water under the doors.