This warehouse is built against a small hill. As you can see in the pictures there are existing rain gutters that run into a concrete v gutter. This is how the water is supposed to tun away from the building. However you can clearly see that soil erosion keeps falling into the gutter and blocking the path of the water attempting to flow away. The long term effect is water pooling along he v gutter and flowing into the space between the building and the hill.
For whatever reason the owner did not like my suggestion of removing the tree replanting Ivy and building a new curb and gutter. But this was an expensive route so I understand their concerns. My second suggestion was to seal the existing concrete as best as possible and to focus on diverting the water away from this area. The roof drains from this 20+ square foot building all drained into this narrow corridor and essentially had nowhere to go.
The water from the hill was minimal so I focused on a solution that relieved a majority of the problem in an attempt to comprise the budget and the objectives.
The application above is a typical roofing cement. Its not a great solution because even though we injected it into the cracks there will be future movement that will open them back up. But this was a cheap stop gap measure.
Secondly we installed the following.
These are irrigation pipes with custom sheet metal spouts covered by a 1/4 inch screen. These are not pretty by any stretch of the imagination but they serve two purposes. The first is the sloped rain head with the screen allows leaves to flow right off the top and it prevents clogging which is a problem at this address. Second, the piping at the bottom can be run a long distance before draining to a location where it cannot be blocked by soils from the hill.
As you can see every drain or scuppers dumps into this piping system which is secure from clogs.
Finally below you can see a painted section of the gutter where the pipes carry the water far away from the building where it should have been running in the first place.
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