ROOF DRAINAGE & GUTTERS Drainage of water from the roof is extremely important in order to achieve complete weather-proofing of the building. A well designed water collection system, through set of Gutters and Drain Pipes at eave-end, not only protect property and building but also helps in water harvesting. Gutters made out of galvanized metal strips, are installed with a generous slope to avoid water accumulation. Available SKUs: 18" and 24"