Guttering

Guttering, in building construction, is a system of channels installed along the eaves to collect rainwater from the roof and convey it away from the building’s foundation. It reduces soil erosion, protects masonry, and helps prevent water intrusion. The system generally comprises a gutter channel, brackets or hangers, fascia boards, and downpipes connected at intervals to external drainage or runoff systems. Water collected in the gutters is directed to downspouts that discharge away from the building.

Gutters come in various profiles. The most common residential profiles are half-round and square-cut (also called box or K-style). In commercial or older homes, box gutters or larger trapezoidal sections may be used. Materials range from aluminum and galvanized steel to copper and vinyl (PVC). Copper gutters have long life and patina; aluminum and PVC offer lower cost and easier installation; stainless steel is used for industrial or where corrosion resistance is important.

Installation requires proper sizing and pitch. Gutters are typically installed with a slight slope toward downspouts to ensure drainage, with hangers or brackets spaced to support the gutter’s load. Downspouts remove water to a drainage system, foundation drain, or rainwater harvesting system. Sizing depends on roof area, rainfall intensity, and local codes.

Maintenance involves regular cleaning of debris, checking for leaks, sagging, and corrosion. Common issues include blockages, leaks at joints, loose fasteners, and ice dams in cold climates. Proper installation and periodic inspection help prevent water damage to the building.