The best rainwater gutter for Kerala is a high-capacity, fortified uPVC gutter because it resists coastal salt-air corrosion, handles over 3000 mm of annual rainfall across two monsoons, and never rusts - unlike metal, which corrodes fast, or concrete, which cracks. Besguard's uPVC gutters come in 165 mm and 225 mm profiles (16 and 20 litres per metre), with the 225 mm profile suited to larger and steeper Kerala roofs.
Kerala has one of the most demanding home-drainage climates in India. With rainfall arriving across two monsoons, sustained humidity, and a long coastline of salt-laden air, a rainwater gutter here has to work harder - and last longer - than almost anywhere else in the country.
This guide explains what Kerala's climate demands from a gutter, and why fortified uPVC has become the practical choice for homes across the state.
Kerala homes need quality rainwater gutters because the state receives over 3000 mm of rain a year across two monsoons, and uncontrolled roof runoff causes wall dampness, foundation erosion, and structural damage. The combination of heavy rain, humidity, and coastal salt makes water management essential.
Kerala's specific challenges:
A gutter for Kerala must handle volume, survive salt air, and resist constant moisture.
The best gutter material for Kerala is fortified, UV-stabilised uPVC, because it does not rust or corrode in salt air and humidity, resists intense sun, and needs minimal maintenance. Metal and concrete both fail faster in Kerala's climate.
How the options compare:
uPVC - rust-proof, corrosion-free, UV-resistant, lightweight, and long-lasting (25+ years). Ideal for humid, coastal Kerala.
GI / metal gutters - rust quickly in humidity and coastal salt air, need repainting, and develop joint leaks. A poor choice near the coast.
Concrete - cracks over time, grows algae in humidity, is heavy, and is expensive to repair.
For Kerala's conditions, fortified uPVC is the clear winner.
Use 225 mm (20 litres/metre) for larger and steeper Kerala roofs, and 165 mm (16 litres/metre) for moderate residential roofs. Kerala's high rainfall intensity often pushes the choice toward the larger profile.
Roof area, pitch, and valleys all affect sizing. As a downpipe guideline, roofs up to 50 m² need one downpipe, 50–100 m² need two, and roofs above 100 m² need three or more. Kerala's steep tiled roofs discharge water fast, so a wide-mouthed, high-capacity profile matters to catch runoff before it overshoots.
Yes. Despite heavy monsoons, Kerala faces water scarcity in the dry season, so connecting gutters to a harvesting system is especially valuable. Gutters collect roof runoff and channel it through downpipes into storage tanks or recharge pits.
Besguard gutters integrate directly with rainwater harvesting systems, turning Kerala's abundant monsoon rain into a year-round water resource for gardening, washing, and household use.
Besguard is a Kerala-based manufacturer of uPVC rainwater gutter systems, engineered for the state's demanding climate, with hundreds of installations across Kerala. Key advantages:
Kerala's two-monsoon, high-humidity, coastal climate is among the toughest in India for a rainwater gutter - a combination that rusts metal and cracks concrete within a few seasons. The best rainwater gutter for Kerala is a high-capacity, fortified uPVC system that ignores salt air, handles the volume, and lasts for decades.
Besguard's uPVC gutters, in 165 mm and 225 mm profiles with IR-Rib reinforcement and a 10-year warranty, are built for exactly these conditions - and backed by local support across Kerala.
