Installing crickets around rtus and skylights is an easy and economical method to resolve ponding.
How to build up a roof where water collects.
Inner roof drains.
By law every house must collect 80 percent of the water that falls on its roof.
The system is capped at the end so that water backs up and when full all new water then flows directly into the tank.
Dig a 5 inch deep rectangle in the area you leveled to accommodate the rain barrels and fill it with 1 2 inch 1 3 cm of pea gravel.
Large roof top units rtus like hvac units or skylights that are unprotected by crickets tend to be places where water collects because it cannot flow past the curb of the unit or skylight.
Create a layer of pea gravel.
To build a traditional bermudian roof masons mortar rectangular slabs or slates of local limestone to each other over a hip roof frame.
This will provide better drainage around the rain barrels and help keep water away from the foundation of your home.
Adding tapered insulation will fix the slope of the roof and add to the building s energy efficiency.
It is not cheap but if you have to fix the slope this option has the extra benefit of added insulation.
If your flat roof has ponding water let the experts at eagle watch roofing take a look.