The Smith underdeck clamp should be specified on all but poured-in-place installations. Roof drains must be firmly secured to the roof with an underdeck clamp, otherwise, due to snow loads, rain loads and regular expansion and contraction, the drain will work in and out of the roofing, causing roofing membranes to flex and fail. Brittle tar will crack and leaks will occur.

The Smith 1330 Underdeck Clamp Roof drains are a revolutionary solution for efficiently managing water drainage on roofs. These drains are designed to be installed underneath the roof deck, allowing for a sleek and seamless appearance on the roof surface. The underdeck clamp design not only provides a more aesthetically pleasing finish but also prevents debris from clogging the drain, ensuring optimal water flow at all times. Additionally, the Smith 1330 drains are constructed from durable materials, making them resistant to corrosion and ensuring long-lasting performance even in harsh weather conditions.

The innovative design of the Smith 1330 Underdeck Clamp Roof drains also offers ease of installation and maintenance. With a simple and straightforward clamp system, these drains can be quickly and securely attached to the roof deck, saving time and labor costs during installation. Furthermore, the easy access to the drain allows for convenient cleaning and maintenance, ensuring continued effectiveness and preventing potential water damage to the roof structure. Overall, the Smith 1330 Underdeck Clamp Roof drains are a reliable and efficient solution for managing water drainage on roofs, providing both functionality and aesthetic appeal.