Bottom Outlet Roof Drain with Overflow

The Thunderbird Products Bottom Outlet Roof Drain with Overflow is a professional-grade overflow roof drain designed to protect flat roofs from water damage during heavy rainfall and storm events. This dual-function roof drain outlet combines primary drainage with integrated overflow protection, ensuring your roofing system remains protected even when primary drains become clogged or overwhelmed. Features Integrated Overflow Protection: The built-in overflow outlet provides critical secondary drainage when your primary roof outlet reaches capacity, preventing roof ponding and potential structural damage during severe weather. Heavy-Duty 20-Ounce Copper Construction: Constructed from thick 20-ounce seamless copper for superior durability and corrosion resistance. Copper outperforms plastic alternatives by resisting rust, melting, and cracking, ensuring decades of reliable performance. Seamless Flashing & Drain Basin: The seamless copper basin design eliminates weak points an