Gutter for garage driveway?

Hi guys,

We are facing the question of whether we should install a drain in the ground in front of our garage or not. The driveway has a slope of 2% towards the garage, everything has been paved with eco-friendly paving stones. Actually, we wanted to install a drain as protection against heavy rain. The construction manager said that it is unnecessary with a slope under 2.5%. Is the drain really dispensable?

Hello Robby,

theoretically you will not need a channel; but if water does ever get into the garage, you will miss having a channel.
Eco-paving is only permeable if the joints and surface are permanently maintained. If something is left on it for a while, it may crust over, the joints may partially grow shut... then a floor channel would indeed be sensible.